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954 lines
38 KiB
C#
954 lines
38 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Policy;
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using System.Text;
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using System.Threading.Tasks;
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using MySql.Data.MySqlClient;
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using Dapper;
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using ZKLT.Hadoop.Interface;
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using ZKLT.Hadoop.Model;
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using MySqlX.XDevAPI.Relational;
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using Mysqlx.Crud;
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using Newtonsoft.Json;
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using Mysqlx.Resultset;
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using Newtonsoft.Json.Linq;
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using System.Transactions;
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namespace ZKLT.Hadoop
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{
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public class TableService : ITableService
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{
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/// <summary>
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/// 合并条件
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/// </summary>
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/// <param name="table">表</param>
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/// <param name="where">条件</param>
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/// <param name="data">数据</param>
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/// <param name="param">参数</param>
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private string MergeWhere(HDP_Table table, JContainer? where, JContainer? data, Dictionary<string, object> param)
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{
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StringBuilder _wherestr = new StringBuilder();
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string _guid = "";
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if (where != null && data != null)
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{
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_wherestr.AppendLine("WHERE");
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var _wheres = new List<JObject>();
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var _datas = new List<JObject>();
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if (where.Type == JTokenType.Object)
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{
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_wheres.Add((JObject)where);
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_datas.Add((JObject)data);
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}
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else if (where.Type == JTokenType.Array)
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{
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for(var i = 0;i < where.Count;i++)
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{
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_wheres.Add((JObject)where.Children().ToArray()[i]);
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_datas.Add((JObject)data.Children().ToArray()[i]);
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}
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}
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for (var j = 0; j < _wheres.Count; j++) {
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if (j > 0) {
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_wherestr.AppendLine("OR");
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}
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_wherestr.AppendLine("(");
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_wherestr.AppendLine("1 = 1");
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var _where = _wheres[j];
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var _data = _datas[j];
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if (_where.Count > 0)
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{
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var _fileds = _where.Children().ToArray();
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for (var i = 0; i < _fileds.Length; i++)
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{
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var _item = (JProperty)_fileds[i];
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if (table.Columns!.Any(x => x.Key == _item.Name) && _data.ContainsKey(_item.Name))
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{
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if (_item.Value.Type == JTokenType.String)
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{
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_guid = Guid.NewGuid().ToString("N");
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_wherestr.AppendLine(@$"AND `{_item.Name}` {_item.Value.ToString()} @{_guid}");
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if (_data[_item.Name]!.Type == JTokenType.Object || _data[_item.Name]!.Type == JTokenType.Array)
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{
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param.Add(_guid, _data[_item.Name]!);
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}
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else if (_item.Value.ToString() == HDP_WhereType.LIKE)
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{
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param.Add(_guid,$@"%{((JValue)_data[_item.Name]!).Value!}%" );
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}
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else {
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param.Add(_guid, ((JValue)_data[_item.Name]!).Value!);
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}
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}
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else if (_item.Value.Type == JTokenType.Array)
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{
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string[] _itemv = _item.Value.ToObject<string[]>()!;
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object[] _colv = _data[_item.Name]!.ToObject<object[]>()!;
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for (var k = 0; k < _itemv.Length; k++)
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{
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_guid = Guid.NewGuid().ToString("N");
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_wherestr.AppendLine(@$"AND `{_item.Name}` {_itemv[k]} @{_guid}");
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param.Add(_guid, _colv.Length > k ? _colv[k] : _colv[_colv.Length - 1]);
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}
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}
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}
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}
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}
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_wherestr.AppendLine(")");
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}
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}
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return _wherestr.ToString();
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}
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/// <summary>
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/// 合并列
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/// </summary>
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/// <param name="table">表</param>
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/// <param name="cols">列</param>
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/// <param name="command">命令</param>
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private void MergeCols(HDP_Table table, string[]? cols, StringBuilder command)
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{
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if (cols == null || cols.Length == 0)
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{
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command.AppendLine(" * ");
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}
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StringBuilder _colstr = new StringBuilder();
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for (var i = 0; i < table.Columns!.Length; i++)
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{
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if (cols!.Any(x => x == table.Columns[i].Key))
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{
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_colstr.Append($@"`{table.Columns[i].Key}`,");
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}
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}
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if (_colstr[_colstr.Length - 1] == ',')
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{
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_colstr.Remove(_colstr.Length - 1, 1);
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}
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command.AppendLine(_colstr.ToString());
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}
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/// <summary>
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/// 合并排序
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/// </summary>
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/// <param name="table">表</param>
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/// <param name="order">排序</param>
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/// <returns></returns>
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private string MergeOrder(HDP_Table table, JContainer? order, Dictionary<string, object> param)
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{
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string _guid = "";
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StringBuilder _orderstr = new StringBuilder();
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if (order != null && order.Count > 0)
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{
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_orderstr.Append("ORDER BY ");
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var _fields = order.Children().ToArray();
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foreach (var field in _fields)
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{
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var _field = (JProperty)field;
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if (table.Columns!.Any(x => x.Key == _field.Name))
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{
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var _column = table.Columns!.First(x => x.Key == _field.Name);
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if (_field.Value.Type == JTokenType.String)
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{
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switch (_field.Value.ToString())
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{
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case "DESC":
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_orderstr.Append($@"`{_column.Key!}` DESC,");
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break;
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default:
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_orderstr.Append($@"`{_column.Key!}` ASC,");
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break;
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}
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}
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else if (_field.Value.Type == JTokenType.Array)
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{
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var _orderTemp = _field.Value.ToObject<object[]>();
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_orderstr.Append(@$"CASE `{_column.Key!}`");
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for (var i = 0; i < _orderTemp!.Length; i++)
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{
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_guid = Guid.NewGuid().ToString("N");
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_orderstr.Append(@$" WHEN @{_guid} THEN {i}");
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param.Add(_guid, _orderTemp[i]);
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}
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_orderstr.Append($@" ELSE {_orderTemp.Length} END,");
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}
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}
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}
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if (_orderstr.Length > 0 && _orderstr[_orderstr.Length - 1] == ',')
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{
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_orderstr.Remove(_orderstr.Length - 1, 1);
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}
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}
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return _orderstr.ToString();
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}
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/// <summary>
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/// 同步结构
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/// </summary>
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/// <param name="source">数据源</param>
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/// <param name="table">数据表</param>
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/// <returns>是否成功</returns>
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public bool InitStruct(HDP_Source source, HDP_Table table)
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{
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//数据校验
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if (string.IsNullOrEmpty(table.Key))
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{
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throw new ArgumentNullException("表键无效");
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}
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if (table.Columns == null || table.Columns.Length == 0)
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{
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throw new ArgumentNullException("列无效");
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}
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using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
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{
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try
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{
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_connection.Open();
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}
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catch
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{
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throw new ArgumentException("数据源连接失败");
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}
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StringBuilder _command = new StringBuilder();
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if (DbExistTable(source, table.Key))
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{
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var _dbColumns = DbGetColumns(source, table.Key);
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_command.AppendLine($@"ALTER TABLE `{table.Key}`");
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_command.AppendLine("DROP PRIMARY KEY,");
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//加载列
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for (var i = 0; i < table.Columns.Length; i++)
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{
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StringBuilder _colstr = new StringBuilder();
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var _column = table.Columns[i];
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if (_dbColumns.Any(x => x.Key!.ToLower() == _column.Key!.ToLower()))
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{
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_colstr.Append($@"MODIFY `{_column.Key}`");
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}
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else
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{
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_colstr.Append($@"ADD `{_column.Key}`");
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}
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switch (_column.DataType)
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{
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case HDP_ColumnDataType.VARCHAR:
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if (_column.Length == 0)
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{
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throw new ArgumentNullException(@$"列{_column.Key}长度无效");
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}
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_colstr.Append($@" {_column.DataType}({_column.Length})");
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break;
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case HDP_ColumnDataType.DECIMAL:
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if (_column.Length == 0 || _column.DecimalLength == 0)
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{
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throw new ArgumentNullException(@$"列{_column.Key}长度无效");
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}
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_colstr.Append($@" {_column.DataType}({_column.Length},{_column.DecimalLength})");
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break;
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default:
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_colstr.Append(@$" {_column.DataType}");
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break;
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}
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if (!string.IsNullOrEmpty(_column.Description))
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{
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_colstr.Append($@" COMMENT '{_column.Description}'");
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}
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_colstr.Append(",");
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_command.AppendLine(_colstr.ToString());
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}
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//加载主键
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var _primarys = table.Columns.Where(x => x.IsPrimary == true).ToArray();
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if (_primarys.Length > 0)
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{
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StringBuilder _primaryStr = new StringBuilder();
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_primaryStr.Append("ADD PRIMARY KEY (");
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for (var i = 0; i < _primarys.Length; i++)
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{
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var _primary = _primarys[i];
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_primaryStr.Append($@"`{_primary.Key}`");
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if (i < _primarys.Length - 1)
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{
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_primaryStr.Append(",");
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}
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}
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_primaryStr.Append(")");
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_command.AppendLine(_primaryStr.ToString());
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}
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if (!string.IsNullOrEmpty(table.Description))
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{
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_command.AppendLine(@$"COMMENT '{table.Description}'");
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}
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_connection.Execute(_command.ToString());
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return true;
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}
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else
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{
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_command.AppendLine($@"CREATE TABLE `{table.Key}` (");
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//加载列
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for (int i = 0; i < table.Columns.Length; i++)
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{
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StringBuilder _colstr = new StringBuilder();
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var _column = table.Columns[i];
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_colstr.Append($@"`{_column.Key}`");
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switch (_column.DataType)
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{
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case HDP_ColumnDataType.VARCHAR:
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if (_column.Length == 0)
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{
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throw new ArgumentNullException(@$"列{_column.Key}长度无效");
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}
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_colstr.Append($@" {_column.DataType}({_column.Length})");
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break;
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case HDP_ColumnDataType.DECIMAL:
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if (_column.Length == 0 || _column.DecimalLength == 0)
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{
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throw new ArgumentNullException(@$"列{_column.Key}长度无效");
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}
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_colstr.Append($@" {_column.DataType}({_column.Length},{_column.DecimalLength})");
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break;
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default:
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_colstr.Append(@$" {_column.DataType}");
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break;
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}
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if (!string.IsNullOrEmpty(_column.Description))
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{
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_colstr.Append($@" COMMENT '{_column.Description}'");
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}
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if (i < table.Columns.Length - 1)
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{
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_colstr.Append(",");
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}
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_command.AppendLine(_colstr.ToString());
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}
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//加载主键
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var _primarys = table.Columns.Where(x => x.IsPrimary == true).ToArray();
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if (_primarys.Length > 0)
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{
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_command.Append(",");
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StringBuilder _primaryStr = new StringBuilder();
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_primaryStr.Append("PRIMARY KEY (");
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for (var i = 0; i < _primarys.Length; i++)
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{
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var _primary = _primarys[i];
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_primaryStr.Append($@"`{_primary.Key}`");
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if (i < _primarys.Length - 1)
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{
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_primaryStr.Append(",");
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}
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}
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_primaryStr.Append(")");
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_command.AppendLine(_primaryStr.ToString());
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}
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_command.AppendLine(")");
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if (!string.IsNullOrEmpty(table.Description))
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{
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_command.AppendLine(@$"COMMENT '{table.Description}'");
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}
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_connection.Execute(_command.ToString());
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}
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_connection.Close();
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return true;
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}
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}
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/// <summary>
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/// 删除结构
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/// </summary>
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/// <param name="source">源</param>
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/// <param name="tableKey">表</param>
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/// <returns>是否成功</returns>
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public bool RemoveStruct(HDP_Source source, string tableKey)
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{
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//数据校验
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if (string.IsNullOrEmpty(tableKey))
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{
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throw new ArgumentNullException("表键无效");
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}
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if (!DbExistTable(source, tableKey))
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{
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throw new ArgumentNullException("表不存在");
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}
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using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
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{
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try
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{
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_connection.Open();
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}
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catch
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{
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throw new ArgumentException("数据源连接失败");
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}
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StringBuilder _command = new StringBuilder();
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_command.AppendLine(@$"DROP TABLE {tableKey}");
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_connection.Execute(_command.ToString());
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_connection.Close();
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return !DbExistTable(source, tableKey);
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}
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}
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/// <summary>
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/// 插入数据
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/// </summary>
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/// <param name="source">数据源</param>
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/// <param name="table">数据表</param>
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/// <param name="data">数据</param>
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/// <returns>是否成功</returns>
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public bool Insert(HDP_Source source, HDP_Table table, JContainer? data)
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{
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//数据校验
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if (string.IsNullOrEmpty(table.Key))
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{
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throw new ArgumentNullException("表键无效");
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}
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if (table.Columns == null || table.Columns.Length == 0)
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{
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throw new ArgumentNullException("列无效");
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}
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if (data == null || data.Count == 0)
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{
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throw new ArgumentNullException("数据无效");
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}
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List<JObject> _data = new List<JObject>();
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if (data.Type == JTokenType.Object)
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{
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_data.Add((JObject)data);
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}
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else if (data.Type == JTokenType.Array)
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{
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_data = data.ToObject<List<JObject>>()!;
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}
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var _result = 0;
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using (TransactionScope _scope = new TransactionScope())
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{
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using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
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{
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try
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{
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_connection.Open();
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}
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catch
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{
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throw new ArgumentException("数据源连接失败");
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}
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for (var j = 0; j < _data.Count; j++)
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{
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var _row = _data[j];
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StringBuilder _command = new StringBuilder();
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//主键检查
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var _primarys = table.Columns.Where(x => x.IsPrimary == true).ToArray();
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for (var i = 0; i < _primarys.Length; i++)
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{
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var _primary = _primarys[i];
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if (!string.IsNullOrEmpty(_primary.InsertDefault) || _row.ContainsKey(_primary.Key!))
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{
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continue;
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}
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else
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{
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throw new ArgumentException($@"主键{_primary.Key}值无效");
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}
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}
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//插入命令
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_command.AppendLine($@"INSERT INTO `{table.Key}` (");
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StringBuilder _colstr = new StringBuilder();
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StringBuilder _parmstr = new StringBuilder();
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Dictionary<string, object> _params = new Dictionary<string, object>();
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for (var i = 0; i < table.Columns.Length; i++)
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{
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var _column = table.Columns[i];
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if (_row.ContainsKey(_column.Key!))
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{
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_colstr.Append($@"`{_column.Key!}`,");
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_parmstr.Append($@"@{_column.Key},");
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_params.Add(_column.Key!, ((JValue)_row[_column.Key!]!).Value!);
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}
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else if (!string.IsNullOrEmpty(_column.InsertDefault))
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{
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_colstr.Append($@"`{_column.Key!}`,");
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_parmstr.Append($@"@{_column.Key},");
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_params.Add(_column.Key!, HDP_CommandAction.Convert(_column.InsertDefault, _row));
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}
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}
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if (_colstr[_colstr.Length - 1] == ',')
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{
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_colstr.Remove(_colstr.Length - 1, 1);
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}
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if (_parmstr[_parmstr.Length - 1] == ',')
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{
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_parmstr.Remove(_parmstr.Length - 1, 1);
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}
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_command.AppendLine(_colstr.ToString());
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_command.AppendLine(") VALUES (");
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_command.AppendLine(_parmstr.ToString());
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_command.AppendLine(")");
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_result += _connection.Execute(_command.ToString(), _params);
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}
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_connection.Close();
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if (_result >= _data.Count)
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{
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_scope.Complete();
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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}
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/// <summary>
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/// 更新
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/// </summary>
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/// <param name="source">数据源</param>
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/// <param name="table">数据表</param>
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/// <param name="where">条件</param>
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/// <param name="row">数据</param>
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/// <returns>是否成功</returns>
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public bool Update(HDP_Source source, HDP_Table table, JContainer? where, JContainer? data)
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{
|
|
//数据校验
|
|
if (string.IsNullOrEmpty(table.Key))
|
|
{
|
|
throw new ArgumentNullException("表键无效");
|
|
}
|
|
if (table.Columns == null || table.Columns.Length == 0)
|
|
{
|
|
throw new ArgumentNullException("列无效");
|
|
}
|
|
if (where == null)
|
|
{
|
|
throw new ArgumentNullException("条件无效");
|
|
}
|
|
List<JObject> _where = new List<JObject>();
|
|
if (where.Type == JTokenType.Object)
|
|
{
|
|
_where.Add((JObject)where);
|
|
}
|
|
else if (where.Type == JTokenType.Array)
|
|
{
|
|
_where.AddRange(((JArray)where).ToObject<JObject[]>()!);
|
|
}
|
|
if (data == null || data.Count == 0)
|
|
{
|
|
throw new ArgumentNullException("数据无效");
|
|
}
|
|
List<JObject> _data = new List<JObject>();
|
|
if (data.Type == JTokenType.Object)
|
|
{
|
|
_data.Add((JObject)data);
|
|
}
|
|
else if (data.Type == JTokenType.Array)
|
|
{
|
|
_data = data.ToObject<List<JObject>>()!;
|
|
}
|
|
var _result = 0;
|
|
using (TransactionScope _scope = new TransactionScope())
|
|
{
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
for (var j = 0; j < _data.Count; j++)
|
|
{
|
|
var _row = _data[j];
|
|
//更新命令
|
|
StringBuilder _command = new StringBuilder();
|
|
Dictionary<string, object> _params = new Dictionary<string, object>();
|
|
_command.AppendLine(@$"UPDATE `{table.Key}` SET ");
|
|
|
|
//更新列
|
|
StringBuilder _colstr = new StringBuilder();
|
|
for (var i = 0; i < table.Columns.Length; i++)
|
|
{
|
|
var _column = table.Columns[i];
|
|
if (_row.ContainsKey(_column.Key!) && !_where.Any(x => x.ContainsKey(_column.Key!)))
|
|
{
|
|
_colstr.Append(@$"`{_column.Key!}`={HDP_CommandAction.ColConvert(_column,_params, ((JValue)_row[_column.Key!]!).Value!)},");
|
|
}
|
|
else if (!string.IsNullOrEmpty(_column.UpdateDefault))
|
|
{
|
|
_colstr.Append($@"`{_column.Key!}`=@{_column.Key!},");
|
|
_params.Add(_column.Key!, HDP_CommandAction.Convert(_column.UpdateDefault, _row));
|
|
}
|
|
}
|
|
if (_colstr[_colstr.Length - 1] == ',')
|
|
{
|
|
_colstr.Remove(_colstr.Length - 1, 1);
|
|
}
|
|
_command.AppendLine(_colstr.ToString());
|
|
|
|
//执行条件
|
|
_command.AppendLine(MergeWhere(table, where, _row, _params));
|
|
|
|
_result += _connection.Execute(_command.ToString(), _params);
|
|
}
|
|
_connection.Close();
|
|
if (_result >= _data.Count)
|
|
{
|
|
_scope.Complete();
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 删除
|
|
/// </summary>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="table">数据表</param>
|
|
/// <param name="where">条件</param>
|
|
/// <param name="row">数据</param>
|
|
/// <returns>是否成功</returns>
|
|
public bool Delete(HDP_Source source, HDP_Table table, JContainer? where, JContainer? data)
|
|
{
|
|
//数据校验
|
|
if (string.IsNullOrEmpty(table.Key))
|
|
{
|
|
throw new ArgumentNullException("表键无效");
|
|
}
|
|
if (table.Columns == null || table.Columns.Length == 0)
|
|
{
|
|
throw new ArgumentNullException("列无效");
|
|
}
|
|
if (where == null)
|
|
{
|
|
throw new ArgumentNullException("条件无效");
|
|
}
|
|
if (data == null || data.Count == 0)
|
|
{
|
|
throw new ArgumentNullException("数据无效");
|
|
}
|
|
List<JObject> _data = new List<JObject>();
|
|
if (data.Type == JTokenType.Object)
|
|
{
|
|
_data.Add((JObject)data);
|
|
}
|
|
else if (data.Type == JTokenType.Array)
|
|
{
|
|
_data = data.ToObject<List<JObject>>()!;
|
|
}
|
|
var _result = 0;
|
|
using (TransactionScope _scope = new TransactionScope())
|
|
{
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
for (var j = 0; j < _data.Count; j++)
|
|
{
|
|
var _row = _data[j];
|
|
//删除命令
|
|
StringBuilder _command = new StringBuilder();
|
|
Dictionary<string, object> _params = new Dictionary<string, object>();
|
|
_command.AppendLine(@$"DELETE FROM `{table.Key}`");
|
|
|
|
_command.AppendLine(MergeWhere(table, where, _row, _params));
|
|
|
|
_result += _connection.Execute(_command.ToString(), _params);
|
|
}
|
|
_connection.Close();
|
|
if (_result >= _data.Count)
|
|
{
|
|
_scope.Complete();
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 查询单个
|
|
/// </summary>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="table">数据表</param>
|
|
/// <param name="where">条件</param>
|
|
/// <param name="data">数据</param>
|
|
/// <returns>结果</returns>
|
|
public T? QuerySingle<T>(HDP_Source source, HDP_Table table, JContainer? where, JContainer? data,
|
|
string[]? col)
|
|
{
|
|
//数据校验
|
|
if (string.IsNullOrEmpty(table.Key))
|
|
{
|
|
throw new ArgumentNullException("表键无效");
|
|
}
|
|
if (table.Columns == null || table.Columns.Length == 0)
|
|
{
|
|
throw new ArgumentNullException("列无效");
|
|
}
|
|
if (where == null)
|
|
{
|
|
throw new ArgumentNullException("条件无效");
|
|
}
|
|
if (data == null || data.Count == 0)
|
|
{
|
|
throw new ArgumentNullException("数据无效");
|
|
}
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
//查询命令
|
|
StringBuilder _command = new StringBuilder();
|
|
Dictionary<string, object> _params = new Dictionary<string, object>();
|
|
if (col == null || col.Length == 0)
|
|
{
|
|
_command.AppendLine(@$"SELECT * FROM `{table.Key}`");
|
|
}
|
|
else
|
|
{
|
|
_command.AppendLine("SELECT");
|
|
MergeCols(table, col, _command);
|
|
_command.AppendLine($@"FROM `{table.Key}`");
|
|
}
|
|
|
|
//执行条件
|
|
_command.AppendLine(MergeWhere(table, where, data, _params));
|
|
|
|
var _result = _connection.Query<T>(_command.ToString(), _params).ToArray();
|
|
_connection.Close();
|
|
if (_result.Length > 0)
|
|
{
|
|
return _result[0];
|
|
}
|
|
else
|
|
{
|
|
return default(T);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 查询列表
|
|
/// </summary>
|
|
/// <typeparam name="T">返回类型</typeparam>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="table">数据表</param>
|
|
/// <param name="where">条件</param>
|
|
/// <param name="data">数据</param>
|
|
/// <param name="order">排序</param>
|
|
/// <param name="col">筛选返回字段</param>
|
|
/// <returns>结果集</returns>
|
|
public T[] Query<T>(HDP_Source source, HDP_Table table, JContainer? where, JContainer? data,
|
|
JContainer? order, string[]? col)
|
|
{
|
|
//数据校验
|
|
if (string.IsNullOrEmpty(table.Key))
|
|
{
|
|
throw new ArgumentNullException("表键无效");
|
|
}
|
|
if (table.Columns == null || table.Columns.Length == 0)
|
|
{
|
|
throw new ArgumentNullException("列无效");
|
|
}
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
//查询命令
|
|
StringBuilder _command = new StringBuilder();
|
|
Dictionary<string, object> _params = new Dictionary<string, object>();
|
|
if (col == null || col.Length == 0)
|
|
{
|
|
_command.AppendLine(@$"SELECT * FROM `{table.Key}`");
|
|
}
|
|
else
|
|
{
|
|
_command.AppendLine("SELECT");
|
|
MergeCols(table, col, _command);
|
|
_command.AppendLine($@"FROM `{table.Key}`");
|
|
}
|
|
|
|
//执行条件
|
|
_command.AppendLine(MergeWhere(table, where, data, _params));
|
|
|
|
//执行排序
|
|
_command.AppendLine(MergeOrder(table, order, _params));
|
|
|
|
var _result = _connection.Query<T>(_command.ToString(), _params);
|
|
_connection.Close();
|
|
return _result.ToArray();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 查询列表
|
|
/// </summary>
|
|
/// <typeparam name="T">返回类型</typeparam>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="table">数据表</param>
|
|
/// <param name="where">条件</param>
|
|
/// <param name="row">数据</param>
|
|
/// <returns>结果集</returns>
|
|
public HDP_Page<T> QueryPage<T>(HDP_Source source, HDP_Table table, int pageIndex, int pageSize, JContainer? where,
|
|
JContainer? data, JContainer? order, string[]? col)
|
|
{
|
|
//数据校验
|
|
if (string.IsNullOrEmpty(table.Key))
|
|
{
|
|
throw new ArgumentNullException("表键无效");
|
|
}
|
|
if (table.Columns == null || table.Columns.Length == 0)
|
|
{
|
|
throw new ArgumentNullException("列无效");
|
|
}
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
//查询命令
|
|
StringBuilder _command = new StringBuilder();
|
|
Dictionary<string, object> _params = new Dictionary<string, object>();
|
|
if (col == null || col.Length == 0)
|
|
{
|
|
_command.AppendLine(@$"SELECT * FROM `{table.Key}`");
|
|
}
|
|
else
|
|
{
|
|
_command.AppendLine("SELECT");
|
|
MergeCols(table, col, _command);
|
|
_command.AppendLine($@"FROM `{table.Key}`");
|
|
}
|
|
|
|
//执行条件
|
|
_command.AppendLine(MergeWhere(table, where, data, _params));
|
|
|
|
//执行排序
|
|
_command.AppendLine(MergeOrder(table, order, _params));
|
|
var _result = new HDP_Page<T>();
|
|
_result.PageIndex = pageIndex;
|
|
_result.PageSize = pageSize;
|
|
StringBuilder _totalstr = new StringBuilder();
|
|
_totalstr.AppendLine($@"SELECT COUNT(0) FROM (");
|
|
_totalstr.AppendLine(_command.ToString());
|
|
_totalstr.AppendLine(") AS Temp");
|
|
_result.Total = _connection.QuerySingle<int>(_totalstr.ToString(), _params);
|
|
StringBuilder _pagestr = new StringBuilder();
|
|
_pagestr.AppendLine($@"SELECT * FROM (");
|
|
_pagestr.AppendLine(_command.ToString());
|
|
_pagestr.AppendLine(") AS Temp");
|
|
_pagestr.AppendLine(@$"LIMIT {(_result.PageIndex - 1) * _result.PageSize},{_result.PageSize}");
|
|
_result.Data = _connection.Query<T>(_pagestr.ToString(), _params).ToArray();
|
|
_connection.Close();
|
|
return _result;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 判断数据源是否存在表
|
|
/// </summary>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="tableName">表名</param>
|
|
/// <returns>是否存在</returns>
|
|
public bool DbExistTable(HDP_Source source, string tableName)
|
|
{
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
StringBuilder _command = new StringBuilder();
|
|
_command.AppendLine($@"SELECT COUNT(0) FROM INFORMATION_SCHEMA.TABLES WHERE `TABLE_TYPE`='BASE TABLE' AND `TABLE_SCHEMA`=@SourceKey AND `TABLE_NAME` =@TableKey");
|
|
int _result = _connection.QuerySingle<int>(_command.ToString(), new { SourceKey = source.Key, TableKey = tableName });
|
|
_connection.Close();
|
|
if (_result > 0)
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 查询数据列
|
|
/// </summary>
|
|
/// <param name="source">数据源</param>
|
|
/// <param name="tableName">表名</param>
|
|
/// <returns>列</returns>
|
|
public HDP_Column[] DbGetColumns(HDP_Source source, string tableName)
|
|
{
|
|
using (MySqlConnection _connection = new MySqlConnection(source.GetConnectString()))
|
|
{
|
|
var _result = new List<HDP_Column>();
|
|
try
|
|
{
|
|
_connection.Open();
|
|
}
|
|
catch
|
|
{
|
|
throw new ArgumentException("数据源连接失败");
|
|
}
|
|
|
|
StringBuilder _command = new StringBuilder();
|
|
_command.AppendLine($@"SELECT `COLUMN_NAME` AS `Key`,`DATA_TYPE` AS `DataType`,`COLUMN_COMMENT` AS `Description` FROM INFORMATION_SCHEMA.COLUMNS
|
|
WHERE `TABLE_SCHEMA`=@SourceKey AND `TABLE_NAME`=@TableKey");
|
|
_result.AddRange(_connection.Query<HDP_Column>(_command.ToString(), new { SourceKey = source.Key, TableKey = tableName }));
|
|
_connection.Close();
|
|
return _result.ToArray();
|
|
}
|
|
}
|
|
}
|
|
}
|