如何从web服务返回JSON [英] How to return JSON from webservice

问题描述

上午，

我需要从我的web服务返回的消息。下面是我的code的样本，我返回一个字符串。

  [Web方法]
公共字符串CheckFeedSubmission（）
    {
        字符串的responseText =;
        尝试
        {
            //东西放在这里
            的responseText =成功了！
        }
        赶上（例外前）{responseText的=哎呀wehave错误异常消息：+ ex.Message; }
        返回的responseText;
    }
 

我目前得到以下响应...

 ＆LT;字符串的xmlns =htt​​p://tempuri.org//＆GT;
 

我想最好想返回类似

  {成功：真实的，消息：***讯息：***}
 

我敢肯定，一旦我得到它的想法，我将能够在必要时返回其他物品。它只是这个基地我需要锻炼。

所有帮助是非常AP preciated，在此先感谢：）

更新：刚刚发现这...

 回归{消息：世界你好'}
 

我会需要这样的东西。

 的responseText ={成功：真实的，消息：\\有一个错误。消息：+ ex.Message +\\}
 

解决方案

使用：

  [的WebMethod]
[ScriptMethod（ResponseFormat = ResponseFormat.Json）] //指定返回格式。
公共字符串CheckFeedSubmission（）
    {
        字符串的responseText =;
        尝试
        {
            //东西放在这里
            的responseText =成功了！
        }
        赶上（例外前）{responseText的=哎呀wehave错误异常消息：+ ex.Message; }
        返回的responseText;
    }
 

返回的将是类似的结果：

 ＆LT;字符串的xmlns =htt​​p://tempuri.org//＆GT;
 {成功：真实的，消息：***讯息：***}
＆LT; /串＆GT;
 

Morning,

I need to return a message from my web service. Below is a sample of my code, and i am returning a string.

[web method]
public string CheckFeedSubmission()
    {
        string responseText = "";
        try
        {
            //Stuff goes here
            responseText = "It Worked!"
        }
        catch (Exception ex) { responseText = "Opps wehave an error! Exception message:" + ex.Message; }
        return responseText ;
    }

I currently get the following response...

<string xmlns="http://tempuri.org/"/>

I would ideally like to return something like

 {"success" : true, "message" : "***Message Here***"}

I am sure once i get the idea of it, i will be able to return other items if needed. Its just this base i need to work out.

All help is much appreciated, thanks in advance :)

UPDATE: Just found this...

 return "{Message:'hello world'}"

Would i need something like

 responseText = "{"success" : true, "message" : \"There has been an error. Message: " + ex.Message + "\"}"

解决方案

Use:

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]//Specify return format.
public string CheckFeedSubmission()
    {
        string responseText = "";
        try
        {
            //Stuff goes here
            responseText = "It Worked!"
        }
        catch (Exception ex) { responseText = "Opps wehave an error! Exception message:" + ex.Message; }
        return responseText ;
    }

The result returned will be like:

<string xmlns="http://tempuri.org/"/>
 {"success" : true, "message" : "***Message Here***"}
</string>

这篇关于如何从web服务返回JSON的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！