问题
I am calling REST service with JSON request and it gives Http 415 \"Unsupported Media Type\" error.
Request content type is set to (\"Content-Type\", \"application/json; charset=utf8\").
It works fine if I don\'t include Json object in the request. I am using google-gson-2.2.4 library for json.
I tried using a couple of different libraries but it made no difference.
Can anybody please help me to resolve this?
Here is my code:
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;
}
}
Value of requestJson.toString is :
{\"type\":\"arl\",\"action\":\"remove\",\"domain\":\"staging\",\"objects\":\"http://www.abc.com\"}
回答1:
Not sure about the reason but Removing lines charset=utf8
from con.setRequestProperty("Content-Type", "application/json; charset=utf8")
resolved the issue.
回答2:
Add Content-Type: application/json
and Accept: application/json
回答3:
This is because charset=utf8
should be without a space after application/json
. That will work fine. Use it like application/json;charset=utf-8
回答4:
If you are making jquery ajax request, dont forget to add
contentType:'application/json'
回答5:
Add the HTTP header manager and add in it your API's header names and values. e.g. Content-type, Accept, etc. That will resolve your issue.
回答6:
Some times Charset Metada breaks the json while sending in the request. Better, not use charset=utf8 in the request type.
回答7:
If you are using AJAX
jQuery
Request this is a must to apply. If not it will throw you 415
Error.
dataType: "json",
contentType:'application/json'
回答8:
I was sending "delete" rest request and it failed with 415. I saw what content-type my server uses to hit the api. In my case, It was "application/json" instead of "application/json; charset=utf8".
So ask from your api developer And in the meantime try sending request with content-type= "application/json" only.
回答9:
I had the same issue. My problem was complicated object for serialization. One attribute of my object was Map<Object1, List<Object2>>
.
I changed this attribute like List<Object3>
where Object3
contains Object1
and Object2
and everything works fine.
回答10:
I know this is way too late to help the OP with his problem, but to all of us who is just encountering this problem, I had solved this issue by removing the constructor with parameters of my Class which was meant to hold the json data.
回答11:
Add MappingJackson2HttpMessageConverter manually in configuration solved the problem for me :
@EnableWebMvc
@Configuration
@ComponentScan
public class RestConfiguration extends WebMvcConfigurerAdapter {
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> messageConverters) {
messageConverters.add(new MappingJackson2HttpMessageConverter());
super.configureMessageConverters(messageConverters);
}
}
回答12:
The reason can be not adding "annotation-driven" in your dispatcher servlet xml file. and also it may be due to not adding as application/json in the headers
回答13:
If you get this in React RSAA middleware or similar, Add the headers:
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(model),
回答14:
I fixed this by updating the Request
class that my Controller receives.
I removed the following class level annotation from my Request
class on my server side. After that my client didn't get 415 error.
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
回答15:
The 415 (Unsupported Media Type) status code indicates that the origin server is refusing to service the request because the payload is in a format not supported by this method on the target resource. The format problem might be due to the request's indicated Content-Type or Content-Encoding, or as a result of inspecting the data directly. DOC
来源:https://stackoverflow.com/questions/22566433/http-415-unsupported-media-type-error-with-json