Http 415不支持的媒体类型错误与JSON [英] Http 415 Unsupported Media type error with JSON

问题描述

我正在使用JSON请求调用REST服务，它给出了Http 415不支持的媒体类型错误。

I am calling REST service with JSON request and it gives Http 415 "Unsupported Media Type" error.

请求内容类型设置为（Content-Type，application / json; charset = utf8）。

Request content type is set to ("Content-Type", "application/json; charset=utf8").

如果我在请求中不包含Json对象，它可以正常工作。我正在为json使用google-gson-2.2.4库。

It works fine if I don't include Json object in the request. I am using google-gson-2.2.4 library for json.

我尝试使用几个不同的库，但没有区别。

I tried using a couple of different libraries but it made no difference.

任何人都可以帮我解决这个？

Can anybody please help me to resolve this?

这是我的代码：

public static void main(String[] args) throws Exception
{

    JsonObject requestJson = new JsonObject();
    String url = "xxx";

    //method call for generating json

    requestJson = generateJSON();
    URL myurl = new URL(url);
    HttpURLConnection con = (HttpURLConnection)myurl.openConnection();
    con.setDoOutput(true);
    con.setDoInput(true);

    con.setRequestProperty("Content-Type", "application/json; charset=utf8");
    con.setRequestProperty("Accept", "application/json");
    con.setRequestProperty("Method", "POST");
    OutputStream os = con.getOutputStream();
    os.write(requestJson.toString().getBytes("UTF-8"));
    os.close();


    StringBuilder sb = new StringBuilder();  
    int HttpResult =con.getResponseCode();
    if(HttpResult ==HttpURLConnection.HTTP_OK){
    BufferedReader br = new BufferedReader(new   InputStreamReader(con.getInputStream(),"utf-8"));  

        String line = null;
        while ((line = br.readLine()) != null) {  
        sb.append(line + "\n");  
        }
         br.close(); 
         System.out.println(""+sb.toString());  

    }else{
        System.out.println(con.getResponseCode());
        System.out.println(con.getResponseMessage());  
    }  

}
public static JsonObject generateJSON () throws MalformedURLException

{
   String s = "http://www.abc.com";
        s.replaceAll("/", "\\/");
    JsonObject reqparam=new JsonObject();
    reqparam.addProperty("type", "arl");
    reqparam.addProperty("action", "remove");
    reqparam.addProperty("domain", "staging");
    reqparam.addProperty("objects", s);
    return reqparam;

}
}

requestJson.toString的值是：

Value of requestJson.toString is :

{type：arl，action：remove，domain：staging，objects： http://www.abc.com }

{"type":"arl","action":"remove","domain":"staging","objects":"http://www.abc.com"}

推荐答案

不确定原因，但从 con.setRequestProperty删除行 charset = utf8 （Content-Type，application / json; charset = utf8 ）解决了这个问题。

Not sure about the reason but Removing lines charset=utf8 from con.setRequestProperty("Content-Type", "application/json; charset=utf8") resolved the issue.

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