JSON 的 Http 415 Unsupported Media type 错误 [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,它以 HTTP 415不支持的媒体类型"
错误响应.
I am calling a REST service with a JSON request and it responds with a HTTP 415 "Unsupported Media Type"
error.
请求内容类型设置为("Content-Type", "application/json; charset=utf8")
.
如果我不在请求中包含 JSON 对象,它就可以正常工作.我正在将 google-gson-2.2.4
库用于 JSON.
It works fine if I don't include a JSON object in the request. I am using the google-gson-2.2.4
library for JSON.
我尝试使用了几个不同的库,但没有任何区别.
I tried using a couple of different libraries but it made no difference.
有人可以帮我解决这个问题吗?
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 + "
");
}
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.example.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()
的值为:
{"type":"arl","action":"remove","domain":"staging","objects":"http://www.example.com"}
推荐答案
不确定原因,但从 con.setRequestProperty("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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