DS7/JsonHelper/JsonClass.cs

using System;
using System.Data;
using System.Configuration;
using System.Web;
/*using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;*/
using System.Text;

/// <summary> 
/// JsonClass 的摘要说明 
/// </summary> 
public class JsonClass
{
    public JsonClass()
    {
    }


    #region 销售模块输出JSON格式的数据

    /// <summary>
    /// 销售模块输出JSON格式的数据
    /// </summary>
    /// <param name="OrderId">单据ID</param>
    /// <param name="Data">数据</param>
    /// <param name="OrderNo">单据编号</param>
    /// <param name="strMsg">操作结果信息</param>
    /// <param name="isSuc">是否成功，1成功、0失败</param>
    public JsonClass(int OrderId, string Data, string OrderNo, string strMsg, int isSuc)
    {
        this.orderid = OrderId;
        this.data1 = Data;
        this.issuc = isSuc;
        this.msg = strMsg;
        this.orderno = OrderNo;
    }

    int orderid;
    string data1;
    int issuc;
    string msg;
    string orderno;
    public int ID
    {
        get { return orderid; }
        set { this.orderid = value; }
    }
    public string NO
    {
        get { return orderno; }
        set { this.orderno = value; }
    }
    public int Sta1
    {
        get { return issuc; }
        set { this.issuc = value; }
    }
    public string Data1
    {
        get { return data1; }
        set { this.data1 = value; }
    }
    public string Msg
    {
        get { return msg; }
        set { this.msg = value; }
    }
   
   
    /// <summary>
    /// 销售模块输出JSON格式的数据
    /// </summary>
    /// <returns></returns>
    public  string ToJosnString()
    {
        return "{\"data\":\"" + data1 + "\",\"id\":" + orderid + ",\"sta\":" + issuc + ",\"Msg\":\"" + msg + "\",\"no\":\"" + orderno + "\"}";
    }

    #endregion

    //手动输出JSON格式的数据 
    public JsonClass(string info, string data, int sta)
    {
        this.info = info;
        this.data = data;
        this.sta = sta;
    }
   
    string info;
    string data;
    int sta;
    public string Info
    {
        get { return info; }
        set { this.info = value; }
    }
    public string Data
    {
        get { return data; }
        set { this.data = value; }
    }
    public int Sta
    {
        get { return sta; }
        set { this.sta = value; }
    }
    //重写ToString()方法，以便输出格式是标准的JSON格式 
    public override string ToString()
    {
        return "{\"data\":\"" + data + "\",\"info\":\"" + info + "\",\"sta\":" + sta + "}";
    }


    /// <summary>
    /// DataTable转换为json字符串
    /// </summary>
    /// <param name="dt"></param>
    /// <returns></returns>
    public static string DataTable2Json(DataTable dt)
    {
        System.Text.StringBuilder jsonBuilder = new System.Text.StringBuilder();
        jsonBuilder.Append("[");
        if (dt.Rows.Count == 0)
        {
            jsonBuilder.Append("]");
            return jsonBuilder.ToString();
        }
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            jsonBuilder.Append("{");
            for (int j = 0; j < dt.Columns.Count; j++)
            {
                jsonBuilder.Append("\"");
                jsonBuilder.Append(dt.Columns[j].ColumnName);
                jsonBuilder.Append("\":\"");
                try
                {
                    jsonBuilder.Append((dt.Rows[i][j].ToString().Replace("\"","\\\"")).Replace("\n","\\r\\n"));
                }
                catch
                {
                    jsonBuilder.Append("");
                }
                jsonBuilder.Append("\",");
            }
            jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
            //jsonBuilder.Append("\"");
            jsonBuilder.Append("},");
        }
        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
        jsonBuilder.Append("]");
        return jsonBuilder.ToString();
    }
    public static string DataTable2NodeJson(DataTable dt) 
    {
        StringBuilder jsonBuilder = new StringBuilder();
        bool isedit=false;
        jsonBuilder.Append("[");
        if (dt.Rows.Count == 0)
        {
            jsonBuilder.Append("]");
        }
        else 
        {
            for (int rows1 = 0; rows1 < dt.Rows.Count; rows1++) 
            {
                if (dt.Rows[rows1][4].ToString() != "True" && dt.Rows[rows1][1].ToString() == "0")
                {
                    jsonBuilder.Append("{");
                    for (int cols1 = 0; cols1 < dt.Columns.Count; cols1++)
                    {                 
                        jsonBuilder.Append("\"");
                        jsonBuilder.Append(dt.Columns[cols1].ColumnName);
                        jsonBuilder.Append("\":\"");
                        try
                        {
                            jsonBuilder.Append((dt.Rows[rows1][cols1].ToString().Replace("\"","\\\"")).Replace("\n","\\r\\n"));
                        }
                        catch
                        {
                            jsonBuilder.Append("");
                        }
                        jsonBuilder.Append("\",");
                    }
                    jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    //jsonBuilder.Append("\"");
                    jsonBuilder.Append("},");
                    
                    ///
                    ///jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    ///jsonBuilder.Append("]");
                    ///
                }
                else if(dt.Rows[rows1][4].ToString()=="True")
                {
                    jsonBuilder.Append("{");
                    for (int cols1 = 0; cols1 < dt.Columns.Count; cols1++)
                    {                 
                        jsonBuilder.Append("\"");
                        jsonBuilder.Append(dt.Columns[cols1].ColumnName);
                        jsonBuilder.Append("\":\"");
                        try
                        {
                            jsonBuilder.Append((dt.Rows[rows1][cols1].ToString().Replace("\"","\\\"")).Replace("\n","\\r\\n"));
                        }
                        catch
                        {
                            jsonBuilder.Append("");
                        }
                        jsonBuilder.Append("\",");
                    }
                    jsonBuilder.Append("\"childClass\":[");
                    for (int rowChild = 0; rowChild < dt.Rows.Count; rowChild++) 
                    {
                        if (jsonBuilder[jsonBuilder.Length - 1] == '[' || jsonBuilder[jsonBuilder.Length - 1] == ',') 
                        { 
                            jsonBuilder.Append("{");
                        }
                        for (int colChild = 0; colChild < dt.Columns.Count; colChild++) 
                        {
                            string value1=dt.Rows[rowChild][1].ToString();
                            string value2=dt.Rows[rows1][2].ToString();
                            if (value1==value2) 
                            {
                                jsonBuilder.Append("\"");
                                jsonBuilder.Append(dt.Columns[colChild].ColumnName);
                                jsonBuilder.Append("\":\"");
                                try
                                {
                                    jsonBuilder.Append((dt.Rows[rowChild][colChild].ToString().Replace("\"", "\\\"")).Replace("\n", "\\r\\n"));
                                }
                                catch
                                {
                                    jsonBuilder.Append("");
                                }
                                jsonBuilder.Append("\",");
                                isedit = true;
                            }
                        }
                        if (isedit)
                        {
                            if (jsonBuilder[jsonBuilder.Length-1] == ',') { jsonBuilder.Remove(jsonBuilder.Length - 1, 1); }
                            
                            jsonBuilder.Append("},");
                        }
                        //jsonBuilder.Append("\"");
                        isedit = false;

                    }
                    if (jsonBuilder[jsonBuilder.Length - 1] == '{' && jsonBuilder[jsonBuilder.Length - 2] == ',') {
                        for (int num = 0; num < 2; num++)
                        {
                            jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                        } 
                    }
                    else if (jsonBuilder[jsonBuilder.Length - 1] == ',')
                    {
                        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    }
                    jsonBuilder.Append("]");

                    //jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    //jsonBuilder.Append("\"");
                    jsonBuilder.Append("},");

                }

            }
        }
        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
        jsonBuilder.Append("]");

        return jsonBuilder.ToString();
    }
    public static string ConvertTextToHtml(string chr)
    {
        if (chr == null)
            return "";
        chr = chr.Replace("\n", "<Enter>");
        return (chr);
    }

    public static string FormatDataTableToJson(DataTable dt, int TotalCount)
    {
        StringBuilder sb = new StringBuilder();

        sb.Append("{totalCount:'" + TotalCount.ToString() + "',data:");
        sb.Append(DataTable2Json(dt));
        sb.Append("}");

        return sb.ToString();
    }

    /*包含格式化日期参数*/
    public  static string DataTableToJson(DataTable dt, int TotalCount)
    {
        System.Text.StringBuilder jsonBuilder = new System.Text.StringBuilder();


        jsonBuilder.Append("{totalCount:'" + TotalCount.ToString() + "',data:");
        #region 构造datatable json
        jsonBuilder.Append("[");
        if (dt.Rows.Count == 0)
        {
            jsonBuilder.Append("]");
        }

        for (int i = 0; i < dt.Rows.Count; i++)
        {
            jsonBuilder.Append("{");
            for (int j = 0; j < dt.Columns.Count; j++)
            {
                //jsonBuilder.Append("\"");
                jsonBuilder.Append(dt.Columns[j].ColumnName);
                jsonBuilder.Append(":\"");
                try
                {
                    /*根据datatable列的数据格式 来格式化字符*/
                    string tmp = string.Empty;
                    if (dt.Columns[j].DataType.ToString() == "System.Int16" || dt.Columns[j].DataType.ToString() == "System.Int32" || dt.Columns[j].DataType.ToString() == "System.Int64")
                        tmp = dt.Rows[i][j].ToString();
                    else if (dt.Columns[j].DataType.ToString() == "System.Decimal")
                        tmp = dt.Rows[i][j].ToString();
                    else if (dt.Columns[j].DataType.ToString() == "System.DateTime")
                    {
                        if (dt.Rows[i][j] != null && dt.Rows[i][j].ToString() != "")
                        {
                            tmp = (Convert.ToDateTime(dt.Rows[i][j].ToString())).ToString("yyyy-MM-dd");
                        }
                    }
                    else
                        tmp = dt.Rows[i][j].ToString();
                    jsonBuilder.Append(GetSafeJSONString(tmp));//.Replace("\"","\\\""));
                }
                catch
                {
                    jsonBuilder.Append("");
                }
                jsonBuilder.Append("\",");
            }
            jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
            jsonBuilder.Append("},");
        }
        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
        jsonBuilder.Append("]");


        #endregion
        jsonBuilder.Append("}");

        return jsonBuilder.ToString();
    }


    private static System.Text.RegularExpressions.Regex safeJSON = new System.Text.RegularExpressions.Regex("[\\n\\r]");
    protected static  string GetSafeJSONString(string input)
    {
        string output = input.Replace("\"", "\\\"");
        output = safeJSON.Replace(output, "<br>");

        return output;

    }
}