Question

我正在使用LINQ to SQL在C＃/ ASP.net中创建WebService Json Parser。它正在运行，但我的 JSON 返回如下。

<string>[{"cli_id":1,"nome":"Joe"},{"cli_id":2,"nome":"Gary"},{"cli_id":3,"nome":"Ash"},{"cli_id":4,"nome":"Pedro"},{"cli_id":5,"nome":"Marcos"}]</string>

我不想要字符串标签。

我正在尝试此代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Script.Serialization;
using System.Web.Script.Services;
using System.Web.Services;

/// <summary>
/// Summary description for WebService
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService {

    public WebService () {


    }

    DataClassesDataContext dados = new DataClassesDataContext();


    [WebMethod]
    public string getCustomers() {

        var json = "";

        var clientes = from result in dados.clientes select result;

        JavaScriptSerializer jss = new JavaScriptSerializer();

        json = jss.Serialize(clientes);

        return json;

    }

}

它返回 JSON ，但使用XML和<string> </string>

如何删除XML？

Answer 1

我将代码更改为：

 [ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
[WebMethod]
public void getCustomers() {

  //  var json = "";
    Context.Response.Clear();
    Context.Response.ContentType = "application/json"; 

    var clientes = from result in dados.clientes select result;

    JavaScriptSerializer jss = new JavaScriptSerializer();

    Context.Response.Write(jss.Serialize(clientes));


}

Answer 2

pkg-config --cflags --libs /usr/local/Cellar/opencv/2.4.12_2/lib/pkgconfig/opencv.pc

现在，当您创建了Web方法时，请使用此ajax调用从Web服务中获取数据

    [WebMethod]
    [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
    public void getCustomers()
    {
        var clientes = from result in dados.clientes select result;

        Context.Response.Clear();
        Context.Response.ContentType = "application/json";
        Context.Response.Write(JsonConvert.SerializeObject(clientes));  
    }

Answer 3

试试这段代码。安装Newtonsoft.Json包。

<强> CODE

public class HelloWorldData
    {
        public String Message;
    }

    [WebMethod]
    public void getCustomers()
    {
        JavaScriptSerializer js = new JavaScriptSerializer();
        Context.Response.Clear();
        Context.Response.ContentType = "application/json";
        HelloWorldData data = new HelloWorldData();
        string sql = "SQL_QUERTY";
        SqlDataAdapter da = new SqlDataAdapter(sql, System.Configuration.ConfigurationManager.AppSettings["CONNECTION_STRING"]);
        DataSet ds = new DataSet();
        da.Fill(ds);
        Context.Response.Write(JsonConvert.SerializeObject(ds, Newtonsoft.Json.Formatting.Indented));
    }

需要没有<string> / XML </string>的JSON中的webService

3 个答案: