package net.xfok.http;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;

　　public class MyClient {
　　/**
　　*的到Http请求结果
　　* @param url请求地址
　　* @param parms请求参数
　　* @return
　　*/
　　public byte[] getBody(String url,Map parms){
　　byte[] body=null;
　　//构造HttpClient的实例
　　HttpClient httpClient = new HttpClient();
　　//创建GET方法的实例
　　PostMethod postMethod = new PostMethod(url);
　　//填入各个表单域的值
　　NameValuePair[] data = new NameValuePair[parms.keySet().size()]; Iterator it = parms.entrySet().iterator();
　　int i=0;
　　while (it.hasNext()) { Map.Entry entry = (Map.Entry) it.next(); Object key = entry.getKey(); Object value = entry.getValue(); data[i]=new NameValuePair(key.toString(),value.toString());
　　i++;
　　}
　　//将表单的值放入postMethod中
　　postMethod.setRequestBody(data);
　　try {
　　//执行postMethod
　　int statusCode = httpClient.executeMethod(postMethod); // HttpClient对于要求接受后继服务的请求，象POST和PUT等不能自动处理转发
　　// 301或者302
　　if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY || statusCode == HttpStatus.SC_MOVED_TEMPORARILY) {
　　//从头中取出转向的地址
　　Header locationHeader = postMethod
　　.getResponseHeader(“location”);
　　String location = null;
　　if (locationHeader != null) { location = locationHeader.getValue(); System.out .println(“The page was redirected to:” + location);
　　} else {
　　System.err.println(“Location field value is null.”);
　　}
　　}
　　body = postMethod.getResponseBody();
　　} catch (Exception e) {
　　e.printStackTrace();
　　}
　　return body;
　　}
　　public static void main(String[] args) {
　　String url=“http://www.xfok.net”;
　　Map parms=new HashMap();
　　MyClient client=new MyClient();
　　String result=new String(client.getBody(url, parms)); System.out.println(result);
　　}
　　}