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package com.test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.URI;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.cookie.CookieSpec;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class HttpWeb {

    
public static String getGetResponse(String url) {
        String html 
= "";
        
// 构造HttpClient的实例
        HttpClient httpClient = new HttpClient();
        
// 创建GET方法的实例
        GetMethod getMethod = new GetMethod(url);
        
// 使用系统提供的默认的恢复策略
        getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
        
try {
            
// 执行getMethod
            int statusCode = httpClient.executeMethod(getMethod);
            
if (statusCode != HttpStatus.SC_OK) {
                System.err.println(
"Method failed: " + getMethod.getStatusLine());
            }
            
// 处理内容
            html = getMethod.getResponseBodyAsString();
        } 
catch (HttpException e) {
            
// 发生致命的异常,可能是协议不对或者返回的内容有问题
            System.out.println("Please check your provided http address!");
            e.printStackTrace();
        } 
catch (IOException e) {
            
// 发生网络异常
            e.printStackTrace();
        } 
finally {
            
// 释放连接
            getMethod.releaseConnection();
        }
        
return html;
    }

    
public static String getPostResponse(String url) throws HttpException, IOException {
        String html 
= "";
        HttpClient httpClient 
= new HttpClient();
        PostMethod postMethod 
= new PostMethod(url);
        postMethod.setRequestHeader(
"accept""*/*");
        postMethod.setRequestHeader(
"connection""Keep-Alive");
        postMethod.setRequestHeader(
"user-agent""Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
        postMethod.setRequestHeader(
"Accept-Language""zh-cn,zh;q=0.5");
        
// postMethod.setRequestHeader("Accept-Encoding", "gzip,deflate");
        
// postMethod.setRequestHeader("Content-Type", "text/html;charset=utf-8");
        
// 填入各个表单域的值
        NameValuePair[] data = { new NameValuePair("msg""你好") };
        
// 将表单的值放入postMethod中
        postMethod.setRequestBody(data);
        
// 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.");
            }
            
return html;
        }
        
// html = postMethod.getResponseBodyAsString();

        System.out.println(postMethod.getResponseCharSet());
        
// byte[] responseBody = postMethod.getResponseBody();

        BufferedReader in 
= new BufferedReader(new InputStreamReader(postMethod.getResponseBodyAsStream(), postMethod
                .getResponseCharSet()));
        StringBuffer sb 
= new StringBuffer();
        
int chari;
        
while ((chari = in.read()) != -1) {
            sb.append((
char) chari);
        }
        html 
= sb.toString();
        in.close();
        postMethod.releaseConnection();

        CookieSpec cookiespec 
= CookiePolicy.getDefaultSpec();
        postMethod.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
        URI uri 
= postMethod.getURI();
        Cookie[] cookies 
= cookiespec.match(uri.getHost(), uri.getPort() == -1 ? 80 : uri.getPort(), "/"false,
                httpClient.getState().getCookies());
        
for (Cookie cookie : cookies) {
            System.out.println(cookie.getName());
            System.out.println(cookie.getValue());
        }

        postMethod.setURI(
new URI("http://www.ssread.com/zt/writecookie2.jsp"false));
        httpClient.executeMethod(postMethod);
        BufferedReader in2 
= new BufferedReader(new InputStreamReader(postMethod.getResponseBodyAsStream(), postMethod
                .getResponseCharSet()));
        StringBuffer sb2 
= new StringBuffer();
        
int chari2;
        
while ((chari2 = in2.read()) != -1) {
            sb2.append((
char) chari2);
        }
        html 
= sb2.toString();
        in2.close();
        postMethod.releaseConnection();
        
// PostMethod postMethod2 = new PostMethod("http://www.ssread.com/zt/writecookie2.jsp");
        
// // httpClient.getState().addCookies(cookies);
        
// httpClient.executeMethod(postMethod2);
        
// BufferedReader in2 = new BufferedReader(new InputStreamReader(postMethod2.getResponseBodyAsStream(),
        
// postMethod2.getResponseCharSet()));
        
// StringBuffer sb2 = new StringBuffer();
        
// int chari2;
        
// while ((chari2 = in2.read()) != -1) {
        
// sb2.append((char) chari2);
        
// }
        
// html = sb2.toString();
        
// in2.close();
        
// postMethod2.releaseConnection();
        return html;
    }

    
public static class UTF8PostMethod extends PostMethod {
        
public UTF8PostMethod(String url) {
            
super(url);
        }

        @Override
        
public String getRequestCharSet() {
            
return super.getRequestCharSet();
            
// return "UTF-8";
        }
    }

    
public static void main(String[] args) throws HttpException, IOException {
        System.out.println(HttpWeb.getPostResponse(
"http://www.ssread.com/zt/writecookie.jsp"));
    }
}
posted on 2009-06-25 17:52 SIMONE 阅读(12439) 评论(0)  编辑  收藏 所属分类: JAVA

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