How to send PUT DELETE HTTP request in HttpURLConnection

Question

I want to know if it is possible to send PUT  DELETE request  practically  through java net HttpURLConnection to HTTP-based URL   I have read so many articles describing that how to send GET  POST  TRACE  OPTIONS requests but I still haven t found any sample code which successfully performs PUT and DELETE requests

User · Answer

UrlConnection is an awkward API to work with  HttpClient is by far the better API and it ll spare you from loosing time searching how to achieve certain things like this stackoverflow question illustrates perfectly  I write this after having used the jdk HttpUrlConnection in several REST clients  Furthermore when it comes to scalability features  like threadpools  connection pools etc   HttpClient is superior

User · Answer

This is how it worked for me   HttpURLConnection connection    HttpURLConnection  url openConnection    connection setRequestMethod  DELETE    int responseCode   connection getResponseCode

User · Answer

For doing a PUT in HTML correctly  you will have to surround it with try catch   try       url   new URL  http   www example com resource        HttpURLConnection httpCon    HttpURLConnection  url openConnection        httpCon setDoOutput true       httpCon setRequestMethod  PUT        OutputStreamWriter out   new OutputStreamWriter          httpCon getOutputStream         out write  Resource content        out close        httpCon getInputStream      catch  MalformedURLException e        e printStackTrace      catch  ProtocolException e        e printStackTrace      catch  IOException e        e printStackTrace

User · Answer

I agree with  adietisheim and the rest of people that suggest HttpClient   I spent time trying to make a simple call to rest service with HttpURLConnection and it hadn t convinced me and after that I tried with HttpClient and it was really more easy  understandable and nice   An example of code to make a put http call is as follows   DefaultHttpClient httpClient   new DefaultHttpClient     HttpPut putRequest   new HttpPut URI    StringEntity input   new StringEntity XML   input setContentType CONTENT TYPE    putRequest setEntity input   HttpResponse response   httpClient execute putRequest

User · Answer

Even Rest Template can be an option   String payload    quot  lt  xml version   quot 1 0  quot  encoding   quot UTF-8  quot   lt RequestDAO gt      quot       RestTemplate rest   new RestTemplate         HttpHeaders headers   new HttpHeaders        headers add  quot Content-Type quot    quot application xml quot        headers add  quot Accept quot    quot     quot        HttpEntity lt String gt  requestEntity   new HttpEntity lt String gt  payload  headers       ResponseEntity lt String gt  responseEntity               rest exchange url  HttpMethod PUT  requestEntity  String class         responseEntity getBody   toString

User · Answer

public  HttpURLConnection getHttpConnection String url  String type           URL uri   null          HttpURLConnection con   null          try              uri   new URL url               con    HttpURLConnection  uri openConnection                con setRequestMethod type     type  POST  PUT  DELETE  GET             con setDoOutput true               con setDoInput true               con setConnectTimeout 60000     60 secs             con setReadTimeout 60000     60 secs             con setRequestProperty  Accept-Encoding    Your Encoding                con setRequestProperty  Content-Type    Your Encoding             catch Exception e               logger info   connection i o failed                       return con      Then in your code    public void yourmethod String url  String type  String reqbody       HttpURLConnection con   null      String result   null      try           con   conUtil getHttpConnection  url   type         you can add any request body here if you want to post          if  reqbody    null                     con setDoInput true                   con setDoOutput true                   DataOutputStream out   new  DataOutputStream con getOutputStream                     out writeBytes reqbody                   out flush                    out close                          con connect            BufferedReader in   new BufferedReader new InputStreamReader con getInputStream              String temp   null          StringBuilder sb   new StringBuilder            while  temp   in readLine       null               sb append temp  append                         result   sb toString            in close          catch  IOException e               TODO Auto-generated catch block         e printStackTrace            logger error e getMessage             result is the response you get from the remote side

User · Answer

there is a simple way for delete and put request  you can simply do it by adding a   method  parameter to your post request and write  PUT  or  DELETE  for its value

User · Answer

To perform an HTTP PUT   URL url   new URL  http   www example com resource    HttpURLConnection httpCon    HttpURLConnection  url openConnection    httpCon setDoOutput true   httpCon setRequestMethod  PUT    OutputStreamWriter out   new OutputStreamWriter      httpCon getOutputStream     out write  Resource content    out close    httpCon getInputStream      To perform an HTTP DELETE   URL url   new URL  http   www example com resource    HttpURLConnection httpCon    HttpURLConnection  url openConnection    httpCon setDoOutput true   httpCon setRequestProperty       Content-Type    application x-www-form-urlencoded     httpCon setRequestMethod  DELETE    httpCon connect

User · Answer

I would recommend Apache HTTPClient      How to do a PUT     How to do a DELETE

[java] How to send PUT, DELETE HTTP request in HttpURLConnection?

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