/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text;
using System.Reflection;
using System.Collections;
using System.Data;
using System.Data.Common;
using System.Web.Script.Serialization;
namespace Common
{
/// <summary>
/// Summary description for FormatToJson
/// </summary>
public class FormatToJson
{
public FormatToJson()
{
//
// TODO: Add constructor logic here
//
}
#region ListToJson
/// <summary>
/// List转成json
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jsonName"></param>
/// <param name="list"></param>
/// <returns></returns>
public static string ListToJson<T>(IList<T> list, string jsonName)
{
StringBuilder Json = new StringBuilder();
if (string.IsNullOrEmpty(jsonName))
jsonName = list[0].GetType().Name;
Json.Append("{\"" + jsonName + "\":[");
if (list.Count > 0)
{
for (int i = 0; i < list.Count; i++)
{
T obj = Activator.CreateInstance<T>();
PropertyInfo[] pi = obj.GetType().GetProperties();
Json.Append("{");
for (int j = 0; j < pi.Length; j++)
{
//注意这里要做非空判断,否则空值会发生异常
if (Common.Tools.IsNullOrEmpty(pi[j].GetValue(list[i], null)))
{
Json.Append("\"" + pi[j].Name.ToString() + "\":" + "\"\"");
}
else
{
Type type = pi[j].GetValue(list[i], null).GetType();
Json.Append("\"" + pi[j].Name.ToString() + "\":" + StringFormat(pi[j].GetValue(list[i], null).ToString(), type));
}
if (j < pi.Length - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < list.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
/// <summary>
/// List转成json (不生成jsonName版本)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="list"></param>
/// <returns></returns>
public static string ListToJsonNoName<T>(IList<T> list)
{
StringBuilder Json = new StringBuilder();
Json.Append("[");
if (list.Count > 0)
{
for (int i = 0; i < list.Count; i++)
{
T obj = Activator.CreateInstance<T>();
PropertyInfo[] pi = obj.GetType().GetProperties();
Json.Append("{");
for (int j = 0; j < pi.Length; j++)
{
//注意这里要做非空判断,否则空值会发生异常
if (Common.Tools.IsNullOrEmpty(pi[j].GetValue(list[i], null)))
{
Json.Append("\"" + pi[j].Name.ToString() + "\":" + "\"\"");
}
else
{
Type type = pi[j].GetValue(list[i], null).GetType();
Json.Append("\"" + pi[j].Name.ToString() + "\":" + StringFormat(pi[j].GetValue(list[i], null).ToString(), type));
}
if (j < pi.Length - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < list.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]");
return Json.ToString();
}
/// <summary>
/// List转成json
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="list"></param>
/// <returns></returns>
public static string ListToJson<T>(IList<T> list)
{
object obj = list[0];
return ListToJson<T>(list, obj.GetType().Name);
}
#endregion
/// <summary>
/// 序列化object类型
/// </summary>
/// <param name="obj">object类型</param>
/// <returns></returns>
public static string ScriptSerializationToJson(object obj)
{
return new JavaScriptSerializer().Serialize(obj);
}
/// <summary>
/// 解析json
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="input"></param>
/// <returns></returns>
public static object DeserializeToJson(string input)
{
return new JavaScriptSerializer().DeserializeObject(input);
}
/// <summary>
/// 对象转换为Json字符串
/// </summary>
/// <param name="jsonObject">对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(object jsonObject)
{
string jsonString = "{";
PropertyInfo[] propertyInfo = jsonObject.GetType().GetProperties();
for (int i = 0; i < propertyInfo.Length; i++)
{
object objectValue = propertyInfo[i].GetGetMethod().Invoke(jsonObject, null);
string value = string.Empty;
if (objectValue is DateTime || objectValue is Guid || objectValue is TimeSpan)
{
value = "'" + objectValue.ToString() + "'";
}
else if (objectValue is string)
{
value = "'" + ToJson(objectValue.ToString()) + "'";
}
else if (objectValue is IEnumerable)
{
value = ToJson((IEnumerable)objectValue);
}
else
{
value = ToJson(objectValue.ToString());
}
jsonString += "\"" + ToJson(propertyInfo[i].Name) + "\":" + value + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "}";
}
/// <summary>
/// 对象集合转换Json
/// </summary>
/// <param name="array">集合对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(IEnumerable array)
{
string jsonString = "[";
foreach (object item in array)
{
jsonString += ToJson(item) + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "]";
}
/// <summary>
/// 普通集合转换Json
/// </summary>
/// <param name="array">集合对象</param>
/// <returns>Json字符串</returns>
public static string ToArrayString(IEnumerable array)
{
string jsonString = "[";
foreach (object item in array)
{
jsonString = ToJson(item.ToString()) + ",";
}
jsonString.Remove(jsonString.Length - 1, jsonString.Length);
return jsonString + "]";
}
/// <summary>
/// Datatable转换为Json
/// </summary>
/// <param name="table">Datatable对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DataTable dt)
{
StringBuilder jsonString = new StringBuilder();
jsonString.Append("[");
DataRowCollection drc = dt.Rows;
for (int i = 0; i < drc.Count; i++)
{
jsonString.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
string strKey = dt.Columns[j].ColumnName;
string strValue = drc[i][j].ToString();
Type type = dt.Columns[j].DataType;
jsonString.Append("\"" + strKey + "\":");
strValue = StringFormat(strValue, type);
if (j < dt.Columns.Count - 1)
{
jsonString.Append(strValue + ",");
}
else
{
jsonString.Append(strValue);
}
}
jsonString.Append("},");
}
jsonString.Remove(jsonString.Length - 1, 1);
jsonString.Append("]");
return jsonString.ToString();
}
#region 为MINIUI生成的json数据转换
/// <summary>
/// 为miniui生成json格式(记住,传入数据,包括总行数和数据项的json
/// </summary>
/// <param name="MiniUi">数据项的json,比如[{"id":1,"name":"tianzh"},{"id":2,"name":"3"}]</param>
/// <param name="total">记录总行数</param>
/// <returns></returns>
public static string MiniUiToJsonFormat(string MiniUi, int total)
{
StringBuilder sb = new StringBuilder();
sb.Append("{\"total\":" + total + ",\"data\":" + MiniUi + "}");
return sb.ToString();
}
/// <summary>
/// 专门为muniUi解析树形的json
/// 大致格式:[{id:"root",text:"总根目录",expanded:false,children:[{id:"xxx",text:"xx"},{id:"xxx",text:"xx"}]}]
/// </summary>
/// <param name="strMiniUi">传入参数为[{id:"xxx",text:"xx"},{id:"xxx",text:"xx"}]</param>
/// <param name="rootName">根标题</param>
/// <returns></returns>
public static string MiniUiToJsonForTree(string strMiniUi, string rootName)
{
StringBuilder sb = new StringBuilder();
sb.Append("[{\"id\":\"-1\",\"text\":\"" + rootName + "\",\"children\":" + strMiniUi + "}]");
return sb.ToString();
}
/// <summary>
/// 专门生成为MiniUi生成json数据(List->json)
/// </summary>
/// <typeparam name="T">泛型</typeparam>
/// <param name="list">实现了Ilist接口的list</param>
/// <param name="total">记录总数</param>
/// <param name="paramMaxMinAvg">这里放排序的参数例如,string para="\"maxAge\":37,\"avgAge\":27,\"minAge\":24"</param>
/// <returns></returns>
public static string MiniUiListToJson<T>(IList<T> list, int total, string paramMaxMinAvg)
{
StringBuilder Json = new StringBuilder();
Json.Append("{\"total\":" + total + ",");
if (!string.IsNullOrEmpty(paramMaxMinAvg))
Json.Append(paramMaxMinAvg);
Json.Append("\"data\":[");
if (list.Count > 0)
{
for (int i = 0; i < list.Count; i++)
{
T obj = Activator.CreateInstance<T>();
PropertyInfo[] pi = obj.GetType().GetProperties();
Json.Append("{");
for (int j = 0; j < pi.Length; j++)
{
//注意这里要做非空判断,否则空值会发生异常
if (Common.Tools.IsNullOrEmpty(pi[j].GetValue(list[i], null)))
{
Json.Append("\"" + pi[j].Name.ToString() + "\":" + "\"\"");
}
else
{
Type type = pi[j].GetValue(list[i], null).GetType();
Json.Append("\"" + pi[j].Name.ToString() + "\":" + StringFormat(pi[j].GetValue(list[i], null).ToString(), type));
}
if (j < pi.Length - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < list.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
#endregion
#region 为easyUI生成的json数据
/// <summary>
/// 专门生成为EasyUI生成json数据(List->json)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="list"></param>
/// <param name="total"></param>
/// <returns></returns>
public static string EasyUIListToJson<T>(IList<T> list, int total)
{
StringBuilder Json = new StringBuilder();
Json.AppendLine("{\"total\":" + total + ",");
Json.Append("\"rows\":[");
if (list.Count > 0)
{
for (int i = 0; i < list.Count; i++)
{
T obj = Activator.CreateInstance<T>();
PropertyInfo[] pi = obj.GetType().GetProperties();
Json.Append("{");
for (int j = 0; j < pi.Length; j++)
{
Type type = pi[j].GetValue(list[i], null).GetType();
Json.Append("\"" + pi[j].Name.ToString() + "\":" + StringFormat(pi[j].GetValue(list[i], null).ToString(), type));
if (j < pi.Length - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < list.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
/// <summary>
/// 专门生成为DataGrid的json数据
/// </summary>
/// <param name="dt"></param>
/// <param name="jsonName"></param>
/// <returns></returns>
public static string EasyUIDataGridToJson(DataTable dt, string jsonName, int total)
{
StringBuilder Json = new StringBuilder();
if (string.IsNullOrEmpty(jsonName))
jsonName = dt.TableName;
Json.Append("{\"total\":" + total + ",\"" + jsonName + "\":[");
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
Json.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
Type type = dt.Rows[i][j].GetType();
Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + StringFormat(dt.Rows[i][j].ToString(), type));
if (j < dt.Columns.Count - 1)
{
Json.Append(",");
}
}
//追加编辑
Json.Append(",\"opt\":\"编辑\"");
Json.Append("}");
if (i < dt.Rows.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
#endregion
/// <summary>
/// DataTable转成Json
/// </summary>
/// <param name="jsonName"></param>
/// <param name="dt"></param>
/// <returns></returns>
public static string ToJson(DataTable dt, string jsonName)
{
StringBuilder Json = new StringBuilder();
if (string.IsNullOrEmpty(jsonName))
jsonName = dt.TableName;
Json.Append("{\"" + jsonName + "\":[");
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
Json.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
Type type = dt.Rows[i][j].GetType();
Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + StringFormat(dt.Rows[i][j].ToString(), type));
if (j < dt.Columns.Count - 1)
{
Json.Append(",");
}
}
Json.Append("}");
if (i < dt.Rows.Count - 1)
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
/// <summary>
/// DataReader转换为Json
/// </summary>
/// <param name="dataReader">DataReader对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DbDataReader dataReader)
{
StringBuilder jsonString = new StringBuilder();
jsonString.Append("[");
while (dataReader.Read())
{
jsonString.Append("{");
for (int i = 0; i < dataReader.FieldCount; i++)
{
Type type = dataReader.GetFieldType(i);
string strKey = dataReader.GetName(i);
string strValue = dataReader[i].ToString();
jsonString.Append("\"" + strKey + "\":");
strValue = StringFormat(strValue, type);
if (i < dataReader.FieldCount - 1)
{
jsonString.Append(strValue + ",");
}
else
{
jsonString.Append(strValue);
}
}
jsonString.Append("},");
}
dataReader.Close();
jsonString.Remove(jsonString.Length - 1, 1);
jsonString.Append("]");
return jsonString.ToString();
}
/// <summary>
/// DataSet转换为Json
/// </summary>
/// <param name="dataSet">DataSet对象</param>
/// <returns>Json字符串</returns>
public static string ToJson(DataSet dataSet)
{
string jsonString = "{";
foreach (DataTable table in dataSet.Tables)
{
jsonString += "\"" + table.TableName + "\":" + ToJson(table) + ",";
}
jsonString = jsonString.TrimEnd(',');
return jsonString + "}";
}
/// <summary>
/// 过滤特殊字符
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
private static string String2Json(String s)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.Length; i++)
{
char c = s.ToCharArray()[i];
switch (c)
{
case '\"':
sb.Append("\\\""); break;
case '\\':
sb.Append("\\\\"); break;
case '/':
sb.Append("\\/"); break;
case '\b':
sb.Append("\\b"); break;
case '\f':
sb.Append("\\f"); break;
case '\n':
sb.Append("\\n"); break;
case '\r':
sb.Append("\\r"); break;
case '\t':
sb.Append("\\t"); break;
default:
sb.Append(c); break;
}
}
return sb.ToString();
}
/// <summary>
/// 格式化字符型、日期型、布尔型
/// </summary>
/// <param name="str"></param>
/// <param name="type"></param>
/// <returns></returns>
private static string StringFormat(string str, Type type)
{
if (type == typeof(string))
{
str = String2Json(str);
str = "\"" + str + "\"";
}
else if (type == typeof(DateTime))
{
DateTime dt = DateTime.Parse(str);
str = "\"" + dt.GetDateTimeFormats('s')[0].ToString() + "\"";
// str = + str + ;
}
else if (type == typeof(bool))
{
str = str.ToLower();
}
return str;
}
}
}
