121 lines
3.9 KiB
C#
121 lines
3.9 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Data;
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namespace AGVSystem
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{
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class Senddataset
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{
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/// <summary>
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/// 将dataSet转换为json
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/// </summary>
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/// <param name="dataSet"></param>
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/// <returns></returns>
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public static string DatasetToJson(DataSet dataSet)
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{
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string jsonString = "{";
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foreach (DataTable table in dataSet.Tables)
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{
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jsonString += "\"" + table.TableName + "\":" + DataTableToJson(table) + ",";
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}
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jsonString = jsonString.TrimEnd(',');
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return jsonString + "}";
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}
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public static string DataTableToJson(DataTable dt)
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{
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StringBuilder jsonString = new StringBuilder();
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jsonString.Append("[");
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DataRowCollection drc = dt.Rows;
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for (int i = 0; i < drc.Count; i++)
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{
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jsonString.Append("{");
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for (int j = 0; j < dt.Columns.Count; j++)
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{
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string strKey = dt.Columns[j].ColumnName;
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string strValue = drc[i][j].ToString();
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Type type = dt.Columns[j].DataType;
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jsonString.Append("\"" + strKey + "\":");
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strValue = StringFormat(strValue, type);
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if (j < dt.Columns.Count - 1)
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{
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jsonString.Append(strValue + ",");
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}
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else
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{
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jsonString.Append(strValue);
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}
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}
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jsonString.Append("},");
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}
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jsonString.Remove(jsonString.Length - 1, 1);
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jsonString.Append("]");
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return jsonString.ToString();
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="str"></param>
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/// <param name="type"></param>
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/// <returns></returns>
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private static string StringFormat(string str, Type type)
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{
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if (type == typeof(string))
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{
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str = StringToJson(str);
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str = "\"" + str + "\"";
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}
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else if (type == typeof(DateTime))
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{
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str = "\"" + str + "\"";
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}
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else if (type == typeof(bool))
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{
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str = str.ToLower();
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}
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else if (type != typeof(string) && string.IsNullOrEmpty(str))
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{
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str = "\"" + str + "\"";
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}
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return str;
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}
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//#region 私有方法
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/// <summary>
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/// 过滤特殊字符
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/// </summary>
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/// <param name="s">字符串</param>
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/// <returns>json字符串</returns>
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private static string StringToJson(String s)
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{
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < s.Length; i++)
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{
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char c = s.ToCharArray()[i];
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switch (c)
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{
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case '\"':
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sb.Append("\\\""); break;
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case '\\':
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sb.Append("\\\\"); break;
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case '/':
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sb.Append("\\/"); break;
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case '\b':
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sb.Append("\\b"); break;
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case '\f':
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sb.Append("\\f"); break;
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case '\n':
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sb.Append("\\n"); break;
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case '\r':
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sb.Append("\\r"); break;
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case '\t':
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sb.Append("\\t"); break;
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default:
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sb.Append(c); break;
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}
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}
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return sb.ToString();
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}
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}
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}
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