与逃脱JSON响应[的WebMethod] [英] Escaped JSON response with [WebMethod]

问题描述

从以下code JSON响应错误地转义为如下所述。

我的webmethod是这样的：

  [的WebMethod（说明=DOC这里）]
    [ScriptMethod（ResponseFormat = ResponseFormat.Json）
    公共字符串responseMyObject（）{
            （！设置（））如果返回;            ...
            代理PU =新的代理（...）;
...            串toReturn = JavaScriptConvert.SerializeObject（pu.getMyObject（））;
            Console.WriteLine（toReturn）;
            返回toReturn;
    }
 

从控制台我得到：

  {字段1：vaule1，字段2：VALUE2}
 

从JS：

  $。阿贾克斯（{
    键入：POST，
    网址：/myapi/myClass.asmx/responseMyObject
    数据：{}，
    的contentType：应用/ JSON的;字符集= UTF-8，
    数据类型：JSON
    成功：函数（MSG）{
                    VAR对象= msg.d;
                    警报（object.field1）;
    }
}）;
 

问题是，在HTTP响应头，我可以看到JSON响应是错误地躲过以下列方式（？）：

  {D：{\\字段1 \\：值1，\\场2 \\：VALUE2}
 

有什么奇怪的是，在控制台打印是罚款（但尚未封装在{D：...}

  {字段1：值1，字段2：VALUE2}
 

，与同类code，如果我叫[的WebMethod]返回基本类型（没​​有对象）JSON的反应是好的。这样的：

{D：8080}

解决方案

  [WebService的]
[ScriptService]
公共类为MyWebService：WebService的
{  [的WebMethod（说明=DOC这里）]
  [ScriptMethod（UseHttpGet =假，ResponseFormat = ResponseFormat.Json）
  公共MyObjectType responseMyObject（）
  {
      代理PU =新的代理（...）;      返回pu.GetMyObject（）;
  }}
 

您不需要一个JSON序列，与ScriptService属性标记它给它绑在JSON序列化能力出来。你是pre序列化JSON，然后再其序列：（

The JSON response from the following code is wrongly escaped as described below.

My webmethod is like this:

    [WebMethod (Description="doc here")]
    [ScriptMethod(ResponseFormat=ResponseFormat.Json)] 
    public string responseMyObject() {
            if (!Setup()) return "";

            ...
            Proxy pu = new Proxy(...);
...

            string toReturn = JavaScriptConvert.SerializeObject(pu.getMyObject());
            Console.WriteLine(toReturn);
            return toReturn;
    }

from the console I get:

{"field1":vaule1,"field2":value2}

from JS:

$.ajax({
    type: "POST",
    url: "/myapi/myClass.asmx/responseMyObject",
    data: "{}",
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function(msg) {
                    var object = msg.d;
                    alert(object.field1);
    }
});

The problem is that in the HTTP response header I can see that the JSON response is wrongly (?) escaped in the following way:

{"d":"{\"field1\":value1,\"field2\":value2}"}

What's strange is that the console print is fine (but not yet encapsulated in {d: ...}

{"field1":value1,"field2":value2}

With similar code, if I call a [WebMethod] that returns basic types (no object) the JSON response is ok. Like:

{"d":8080}

解决方案

[WebService]
[ScriptService]
public class MyWebService : WebService
{    

  [WebMethod (Description="doc here")]    
  [ScriptMethod( UseHttpGet=false, ResponseFormat=ResponseFormat.Json)]     
  public MyObjectType responseMyObject() 
  {
      Proxy pu = new Proxy(...);

      return pu.GetMyObject();
  }

}

You dont need a JSON serializer, tagging it with the ScriptService attribute gives it tie ability to serialize JSON out. You were pre serializing the JSON and then serializing it again :(

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