Java HTTPPost Request with Apache HttpClient
Solution 1
Accept-Encoding is part of the HTTP Header, in addition to the parameters that you mistakenly sent as POST parameters:
Here is how to send it using HTTP Client:
httpPostRequest.setHeader("Content-Length", "6");
httpPostRequest.setHeader("Accept-Encoding", "identity");
httpPostRequest.setHeader("Host", "a.host.com");
Solution 2
If you want to change the Http Header Accept-Encoding, you chang like this
httpPostRequest.setHeader("Accept-Encoding", "identity");
Your codes
final List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(6);
nameValuePairs.add(new BasicNameValuePair("Host: ", "a.host.com");
nameValuePairs.add(new BasicNameValuePair("Accept-Encoding: ", "identity"));
nameValuePairs.add(new BasicNameValuePair("Content-Length: ", "6"));
httpPostRequest.setEntity(new UrlEncodedFormEntity(nameValuePairs));
are used to send the value pairs in the http request body, NOT IN THE HEADER
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ankit249
Updated on August 13, 2020Comments
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ankit249 over 3 years
I need a java program to generate the following request. I am using Apache HttpClient Library but still not able to produce a request like this:
This is what my python program generates and i wrote an equivalent java program. but its throwing 403.
2012-09-10 15:12:05G INFO: G2OAuth auth data = "3, 0.0.0.0, 0.0.0.0, 1347289925, 3223833979, crlakamai" 2012-09-10 15:12:05G INFO: G2OAuth sign string = "3, 0.0.0.0, 0.0.0.0, 1347289925, 3223833979, akamai/182228\nx-akamai-acs-action:version=1&action=dir&format=xml\n"
send: 'POST /182228 HTTP/1.1\r\nHost: crl.api.akamailab.com\r\nAccept-Encoding: identity\r\nX-Akamai-ACS-Auth-Data: 3, 0.0.0.0, 0.0.0.0, 1347289925, 3223833979, crlsymc\r\nX-Akamai-ACS-Auth-Sign: eFnWtJBIyj4rxV3V0axF3w==\r\nX-Akamai-ACS-Action: version=1&action=dir&format=xml\r\n\r\n' reply: 'HTTP/1.1 200 OK\r\n' header: Server: Apache header: Content-Type: text/html header: Date: Mon, 10 Sep 2012 15:12:09 GMT header: Content-Length: 31 header: Connection: keep-alive
The response looks like this:
<?xml version="1.0" encoding="ISO-8859-1"?> <stat directory="/182232"> <file type="file" name="log4j.properties" mtime="1346780907" size="301" md5="c92268157f1732a05c2027d151fc539a"/> </stat>
Here is My Java Code:
final HttpHost targetHost = new HttpHost("a.host.com", 80, "http"); final DefaultHttpClient httpClient = new DefaultHttpClient(); final Credentials credentials = new UsernamePasswordCredentials("user","pass"); httpClient.getCredentialsProvider().setCredentials(new AuthScope(targetHost.getHostName(), targetHost.getPort()), credentials); final HttpPost httpPostRequest = new HttpPost("akamai/182232"); //Add your Data final List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(6); nameValuePairs.add(new BasicNameValuePair("Host: ", "a.host.com"); nameValuePairs.add(new BasicNameValuePair("Accept-Encoding: ", "identity")); nameValuePairs.add(new BasicNameValuePair("Content-Length: ", "6")); httpPostRequest.setEntity(new UrlEncodedFormEntity(nameValuePairs)); final HttpResponse response = httpClient.execute(targetHost, httpPostRequest); if (response.getStatusLine().getStatusCode() != 200) { throw new RuntimeException("Failed : HTTP error code : " + response.getStatusLine().getStatusCode()); }
My response looks like this.
2012-09-10 11:31:22,600 DEBUG [wire] >> "POST /182228/a.crl HTTP/1.1[\r][\n]" 2012-09-10 11:31:22,601 DEBUG [wire] >> "Content-Length: 394[\r][\n]" 2012-09-10 11:31:22,601 DEBUG [wire] >> "Content-Type: application/x-www-form-urlencoded; charset=ISO-8859-1[\r][\n]" 2012-09-10 11:31:22,601 DEBUG [wire] >> "Host: crl.api.symclab.com:80[\r][\n]" 2012-09-10 11:31:22,601 DEBUG [wire] >> "Connection: Keep-Alive[\r][\n]" 2012-09-10 11:31:22,601 DEBUG [wire] >> "User-Agent: Apache-HttpClient/4.1.3 (java 1.5)[\r][\n]" 2012-09-10 11:31:22,602 DEBUG [wire] >> "[\r][\n]"
I want Accept-Encoding another headers as part of post, how do i add them ? It hast to be part of the post request i believe and not http header.