POST request to server using java URLConnnection with params and file inputs

Question

POST request to server using java URLConnnection
I need to send a POST request with the two parameters below:

param1=value1
param2=value2

And also I need to send a file.

In the case of Apache these 2 two(sending params and file) things are handled like below

post.setQueryString(queryString)  // queryString is url encoded for eg: param1=value1&param2=value2
post.setRequestEntity(entity)  // entity is constructed using file input stream with corresponding format

Please let me know if you have anything related to this problem.

Please note: When I try using Google Chrome REST client plug-in, I am getting the response as below (tried with all request content-types)

UNSUPPORTED FILE FORMAT: 'multipart/form-data' is not a supported content-type
Response code is 400.

Did you set specific MIME type according to your file type?

Sridhar
– Sridhar

2015-04-17 09:05:13 +00:00
Commented Apr 17, 2015 at 9:05 — Sridhar
– Sridhar, Commented Apr 17, 2015 at 9:05

Rookie007 · Accepted Answer · 2015-04-17 09:07:06Z

1

Try this API from Apache to send request internally with POST method.

The below is the sample Code to use API

   List<org.apache.http.NameValuePair> list =new ArrayList<org.apache.http.NameValuePair>();
   HttpPost postMethod  =  new HttpPost("http://yoururl/ProjectName"); 
   list.add(new BasicNameValuePair("param1", "param1 Value")) ;
   postMethod.setEntity(new UrlEncodedFormEntity(list));
   HttpClient client = HttpClientBuilder.create().build();
   HttpResponse response =  client.execute(postMethod);
   InputStream is = response.getEntity().getContent();

answered Apr 17, 2015 at 9:07

Rookie007

1,2192 gold badges19 silver badges53 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Mohan G Over a year ago

Thanks for the reply. Here I am replacing Apache http client with Java URLConnection in my project. So I need it with URLConnnection. Clearly I need to know the equivalent of post.setRequestEntity(entity) in java urlconnnection.Thanks

Mohan G Over a year ago

Please note my requirement is Java URLConnection + POST request + params + file

Rookie007 Over a year ago

did u check this out stackoverflow.com/questions/2026260/…

Collectives™ on Stack Overflow

POST request to server using java URLConnnection with params and file inputs

1 Answer 1

3 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related