Send a POST request to an HTTPS address using httpclient 4.1.2

send a POST request to an HTTPS address using httpclientPackage com.jadyer.util;

Import java.io.IOException;
Import java.io.UnsupportedEncodingException;
Import java.security.KeyManagementException;
Import java.security.NoSuchAlgorithmException;
Import java.security.cert.CertificateException;
Import Java.security.cert.X509Certificate;
Import java.util.ArrayList;
Import Java.util.HashMap;
Import java.util.List;
Import Java.util.Map;

Import Javax.net.ssl.SSLContext;
Import Javax.net.ssl.TrustManager;
Import Javax.net.ssl.X509TrustManager;

Import org.apache.http.HttpEntity;
Import Org.apache.http.HttpResponse;
Import Org.apache.http.NameValuePair;
Import org.apache.http.ParseException;
Import org.apache.http.client.ClientProtocolException;
Import org.apache.http.client.HttpClient;
Import org.apache.http.client.entity.UrlEncodedFormEntity;
Import Org.apache.http.client.methods.HttpPost;
Import Org.apache.http.conn.scheme.Scheme;
Import Org.apache.http.conn.ssl.SSLSocketFactory;
Import org.apache.http.impl.client.DefaultHttpClient;
Import Org.apache.http.message.BasicNameValuePair;
Import Org.apache.http.util.EntityUtils;

/**
* @see =====================================================================================================
* @see often encounter two situations when developing HTTPS applications
* @see 1, either the test server does not have a valid SSL certificate, and the client will throw an exception when it connects
* @see Javax.net.ssl.SSLPeerUnverifiedException:peer Not authenticated
* @see 2, or the test server has an SSL certificate, but may be due to various unknown reasons, it will still throw a heap of bad code seven bad exception
* @see =====================================================================================================
* @see because we're using httpcomponents-client-4.1.2 to create a connection, we're going to tell it to use a different TrustManager
* @see TrustManager is a class for checking whether a given certificate is valid
* The mode used for @see SSL is X.509 .... For this pattern, Java has a specific trustmanager called X509trustmanager
* @see So we create a X509trustmanager instance of our own
* @see and in the X509trustmanager instance, if the certificate is invalid, the TrustManager is thrown in its checkxxx () method certificateexception
* @see Since we're going to accept all the certificates, it's OK to x509trustmanager the method in the body without throwing an exception.
* @see and then create a sslcontext and use the X509trustmanager instance to initialize the
* @see then create sslsocketfactory through Sslcontext, and finally register sslsocketfactory to httpclient.
* @see =====================================================================================================
* @create 1:11:52 PM
* @author Xuan Yu (http://blog.csdn/net/jadyer)
*/
public class Httpclientutil {
public static void Main (string[] args) throws exception{
map<string, string> params = new hashmap<string, string> ();
Params.put ("Transname", "IQSR");
Params.put ("Plain", "transid=iqsr~|~originalorderid=2012~|~originaltransamt= ~|~merurl=");
Params.put ("Signature", "9b759887e6ca9d4c24509d22ee4d22494d0dd2dfbdbeaab3545c1acee62eec7");
Sendsslpostrequest ("Https://www.cebbank.com/per/QueryMerchantEpay.do", params);
}

/**
* Send POST request to HTTPS address
* @param requrl Request Address
* @param params request parameters
* @return Response Content
*/
@SuppressWarnings ("finally")
public static string Sendsslpostrequest (String Requrl, map<string, string> params) {
Long responselength = 0; Response length
String responsecontent = null; Response Content
HttpClient httpclient = new Defaulthttpclient (); Create a default HttpClient instance
X509trustmanager XTM = new X509trustmanager () {//Create TrustManager
public void checkclienttrusted (x509certificate[] chain, String authtype) throws Certificateexception {}
public void checkservertrusted (x509certificate[] chain, String authtype) throws Certificateexception {}
Public x509certificate[] Getacceptedissuers () {return null;}
};
try {
TLS1.0 and SSL3.0 are basically not very different, and they can be roughly understood as TLS are the inheritors of SSL, but they use the same sslcontext
Sslcontext CTX = sslcontext.getinstance ("TLS");

Use TrustManager to initialize the context, TrustManager is only used by an SSL socket
Ctx.init (NULL, new TRUSTMANAGER[]{XTM}, NULL);

Create Sslsocketfactory
Sslsocketfactory socketfactory = new Sslsocketfactory (CTX);

Register Sslsocketfactory to our httpclient via Schemeregistry.
Httpclient.getconnectionmanager (). Getschemeregistry (). Register (New Scheme ("https", 443, socketfactory));

HttpPost HttpPost = new HttpPost (Requrl); Create HttpPost
list<namevaluepair> formparams = new arraylist<namevaluepair> (); Building form parameters for post requests
For (map.entry<string,string> Entry:params.entrySet ()) {
Formparams.add (New Basicnamevaluepair (Entry.getkey (), Entry.getvalue ()));
}
Httppost.setentity (New Urlencodedformentity (Formparams, "UTF-8"));

HttpResponse response = Httpclient.execute (HttpPost); Perform a POST request
httpentity entity = response.getentity (); Get response Entity

if (null!= entity) {
ResponseLength = Entity.getcontentlength ();
Responsecontent = entityutils.tostring (Entity, "UTF-8");
Entityutils.consume (entity); Consume response content
}
SYSTEM.OUT.PRINTLN ("Request address:" + Httppost.geturi ());
SYSTEM.OUT.PRINTLN ("Response Status:" + Response.getstatusline ());
SYSTEM.OUT.PRINTLN ("Response length:" + responselength);
SYSTEM.OUT.PRINTLN ("Response content:" + responsecontent);
catch (Keymanagementexception e) {
E.printstacktrace ();
catch (NoSuchAlgorithmException e) {
E.printstacktrace ();
catch (Unsupportedencodingexception e) {
E.printstacktrace ();
catch (Clientprotocolexception e) {
E.printstacktrace ();
catch (ParseException e) {
E.printstacktrace ();
catch (IOException e) {
E.printstacktrace ();
finally {
Httpclient.getconnectionmanager (). Shutdown (); Close the connection and release the resource
return responsecontent;
}
}
}