HttpClient get and POST request processing

package cn.test1;import java.io.bufferedreader;import java.io.ioexception;import  java.io.inputstream;import java.io.inputstreamreader;import java.util.arraylist;import  java.util.list;import org.apache.http.httpentity;import org.apache.http.namevaluepair;import  org.apache.http.client.clientprotocolexception;import org.apache.http.client.entity.urlencodedformentity; import org.apache.http.client.methods.closeablehttpresponse;import  org.apache.http.client.methods.httpget;import org.apache.http.client.methods.httppost;import  Org.apache.http.impl.client.closeablehttpclient;import org.apache.http.impl.client.httpclients;import  org.apache.http.message.basicnamevaluepair;/** * 1. Creating an HttpClient object  * 2. Create an instance of the request method, and specify the request URL, create a HttpGet object if you need to send a GET request, or create a HttpPost object  * 3 if you need to send a POST request. If you need to send request parameters, You can call the HttpGet or HttpPost common SetParams (Httpparams params) method to add request parameters; *    for HttpPost objects andYou can also call the Setentity (httpentity entity) method to set the request parameters.  * 4. Call the Execute (httpurirequest request) of the HttpClient object to send the request, which returns a HttpResponse.  * 5. Call HttpResponse's Getallheaders (), Getheaders (String name), and so on to get the server's response header; *     Calls HttpResponse's GetEntity () method to get the Httpentity () object, which wraps the server's response content. The  *    program can get the response content of the server through this object.  * 6. Release the connection, you must release the connection, regardless of whether the method succeeds or not:  * */public class test1 {public static  void main (String[] args)  {get ();p OST ();} Private static void post ()  {//1. Creating HttpClient Objects Closeablehttpclient httpclient =  httpclients.createdefault (); try {//create HttpGet object//This path is wrong oh, the blind writing httppost httppost = new  httppost ("http://www.baidu.com/login.action");//create parameter queue list<namevaluepair> params =  New arraylist<namevaluepair> ();p Arams.add (New basicnamevaluepair ("username",  "admin")); Params.add (New basicnamevaluepair ("Password ", " 123456 ")); Urlencodedformentity formentity;formentity = new urlencodedformentity (params, "utf-8");// Sets the parameter to the HttpPost object Httppost.setentity (formentity); SYSTEM.OUT.PRINTLN ("Execute Request Path:" +httppost.geturi ());//execute GET request closeablehttpresponse response =  Httpclient.execute (HttpPost); SYSTEM.OUT.PRINTLN ("Response turntable" +response.getstatusline ());//Get response entity httpentity entity =  Response.getentity (); if (entity != null) {inputstream is = entity.getcontent (); String str = convertstreamtostring (IS); SYSTEM.OUT.PRINTLN ("Response content is:" +str); Httppost.abort ();}}  catch  (clientprotocolexception e)  {e.printstacktrace ();}  catch  (ioexception e)  {e.printstacktrace ();}} Private static void get ()  {//1. Creating HttpClient Objects Closeablehttpclient httpclient =  httpclients.createdefault (); try {//Create HttpGet object Httpget httpget = new httpget (" http://www.baidu.com/"); SYSTEM.OUT.PRINTLN ("Execute Request Path:" +httpget.geturi ());//execute GET request closeablehttpresponse response =  Httpclient.execute (HttpGet); SYSTEM.OUT.PRINTLN ("Response turntable" +response.getstatusline ());//Get response entity httpentity entity =  Response.getentity (); if (entity != null) {inputstream is = entity.getcontent (); String str = convertstreamtostring (IS); SYSTEM.OUT.PRINTLN ("Response content is:" +str); Httpget.abort ();}}  catch  (clientprotocolexception e)  {e.printstacktrace ();}  catch  (ioexception e)  {e.printstacktrace ();}} Private static string convertstreamtostring (Inputstream is)  {BufferedReader  Reader = new bufferedreader (New inputstreamreader (IS)); Stringbuilder sb = new stringbuilder (); String line = null;try {while ((Line = reader.readline ())  != null) { Sb.append (line+ "\ r \ n");}}  catch  (ioexception e)  {e.prinTstacktrace ();} Finally{try {is.close ();}  catch  (ioexception e)  {e.printstacktrace ();}} Return sb.tostring ();}}

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HttpClient get and POST request processing