package com.httpclient;

/**
* http://api.xxx.com/api/android/
* commandid=guestpacklist&coursetype=6&grade=1039&mac=78%3Af5%3Afd%3A7b%3Ac2%3A9d&pagenumber=1&phpsessid=&rowcount=8&signed=0aa38c77108b23f4e1b588ac02338445&subject=1001&subversion=8014&userid=
*/
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
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.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class CustomHttpClient {
    public void postForm() {
        // 创建默认的httpClient实例.
        CloseableHttpClient httpclient = HttpClients.createDefault();
        // 创建httppost
        HttpPost httppost = new HttpPost("http://api.xxx.com/api/android/");
        // 创建参数队列
        ArrayList<BasicNameValuePair> formparams = new ArrayList<BasicNameValuePair>();
        formparams.add(new BasicNameValuePair("commandid", "guestpacklist"));
        formparams.add(new BasicNameValuePair("coursetype", "6"));
        formparams.add(new BasicNameValuePair("grade", "1039"));
        formparams.add(new BasicNameValuePair("mac",
                "78%3Af5%3Afd%3A7b%3Ac2%3A9d"));
        formparams.add(new BasicNameValuePair("pagenumber", "1"));
        formparams.add(new BasicNameValuePair("phpsessid", "6"));
        formparams.add(new BasicNameValuePair("rowcount", "8"));
        formparams.add(new BasicNameValuePair("signed",
                "0aa38c77108b23f4e1b588ac02338445"));
        formparams.add(new BasicNameValuePair("subject", "1001"));
        formparams.add(new BasicNameValuePair("subversion", "8014"));
        formparams.add(new BasicNameValuePair("userid", ""));
        UrlEncodedFormEntity uefEntity;
        try {
            uefEntity = new UrlEncodedFormEntity(formparams, "UTF-8");
            httppost.setEntity(uefEntity);
            System.out.println("executing request " + httppost.getURI());
            CloseableHttpResponse response = httpclient.execute(httppost);
            try {
                HttpEntity entity = response.getEntity();
                if (entity != null) {
                    System.out
                            .println("--------------------------------------");
                    System.out.println("Response content: "
                            + EntityUtils.toString(entity, "UTF-8"));
                    System.out
                            .println("--------------------------------------");
                }
            } finally {
                response.close();
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e1) {
            e1.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 关闭连接,释放资源
            try {
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        CustomHttpClient chttpclient=new CustomHttpClient();
        chttpclient.postForm();
    }
}

• public void get() { 
•         CloseableHttpClient httpclient = HttpClients.createDefault(); 
• try { 
• // 创建httpget. 
•             HttpGet httpget = new HttpGet("http://www.baidu.com/"); 
•             System.out.println("executing request " + httpget.getURI()); 
• // 执行get请求. 
•             CloseableHttpResponse response = httpclient.execute(httpget); 
• try { 
• // 获取响应实体 
•                 HttpEntity entity = response.getEntity(); 
•                 System.out.println("--------------------------------------"); 
• // 打印响应状态 
•                 System.out.println(response.getStatusLine()); 
• if (entity != null) { 
• // 打印响应内容长度 
•                     System.out.println("Response content length: " + entity.getContentLength()); 
• // 打印响应内容 
•                     System.out.println("Response content: " + EntityUtils.toString(entity)); 
•                 } 
•                 System.out.println("------------------------------------"); 
•             } finally { 
•                 response.close(); 
•             } 
•         } catch (ClientProtocolException e) { 
•             e.printStackTrace(); 
•         } catch (ParseException e) { 
•             e.printStackTrace(); 
•         } catch (IOException e) { 
•             e.printStackTrace(); 
•         } finally { 
• // 关闭连接,释放资源 
• try { 
•                 httpclient.close(); 
•             } catch (IOException e) { 
•                 e.printStackTrace(); 
•             } 
•         } 
•     } 

httpclient_1