小弟用HttpClient对一个网页进行模拟登陆，但是对HttpClient不太熟练遇到了点问题。请各位大哥花点时间帮小弟改下呗O(∩_∩)O~

 


 救命啊！ 大哥们。

想办法获得response对象吧，不然COOKIE没法写啊！~

引用 2 楼 emon123 的回复:

想办法获得response对象吧，不然COOKIE没法写啊！~

注释里这些就是啊！  

Header headerResponse = postMethod.getResponseHeader(COOKIE); 是这个不？   

我大概知道了。。

aspx ?

搞定了，登录获取COOKIE。利用COOKIE访问第二个页面！  代码写的不好分享下！


package com.newpalm.unicomfetch.threads;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
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.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

/**
 * 
 *@xiaozhong
 */
public class FormLoginDemo {

    public static void main(String[] args) throws Exception{
    
     String s ="登   录";
     String s1 ="admin";  //账号
        HttpClient client = new HttpClient();
        client.getParams().setContentCharset("GBK");


        //模拟登录页面
        PostMethod post = new PostMethod("http://localhost/PhoneRead/login.aspx");
       NameValuePair __VIEWSTATE = new NameValuePair("__VIEWSTATE","/wEPDwUJODg1NzI5NTYwZGSqtd9cESQGNA00lLD3T6Z/0TiG4w==");
        NameValuePair __EVENTVALIDATION = new NameValuePair("__EVENTVALIDATION","/wEWBAKY3ZTzAwKl1bKzCQK1qbSRCwLCi9reA99MBLTab8Vojx1AKgKrre0MPlRd");
        NameValuePair __EVENTTARGET = new NameValuePair("__EVENTTARGET","");
        NameValuePair __EVENTARGUMENT = new NameValuePair("__EVENTARGUMENT","");
        NameValuePair txtUserName = new NameValuePair("txtUserName",s1);
        NameValuePair txtPassword = new NameValuePair("txtPassword","123789");
        NameValuePair btnSubmit = new NameValuePair("btnSubmit",s);
        post.setRequestBody(new NameValuePair[]{__EVENTTARGET,__EVENTARGUMENT,__VIEWSTATE,__EVENTVALIDATION,txtUserName,txtPassword,btnSubmit});
        int status = client.executeMethod(post);
        
        post.releaseConnection();  
        //查看COOKIE信息
//        COOKIESpec COOKIEspec = COOKIEPolicy.getDefaultSpec();
        COOKIE[] COOKIEs = client.getState().getCOOKIEs();
        if (COOKIEs.length == 0) {
           System.out.println("None");    
        } else {
           for (int i = 0; i < COOKIEs.length; i++) {
              System.out.println("i:"+COOKIEs[i].toString());    //获取的COOKIE 
           }
       }
       
        NameValuePair __VIEWSTATE2= new NameValuePair("__VIEWSTATE", "/wEPDwUJMzc4NDIwMDA5D2QWAgIDD2QWBAIFDxBkDxYBZhYBEAUM6ZqP6ZiF5Lmm5Z+OBQzpmo/pmIXkuabln45nZGQCBw8QDxYGHg5EYXRhVmFsdWVGaWVsZAUCSUQeDURhdGFUZXh0RmllbGQFCkNoYW5uZWxOdW0eC18hRGF0YUJvdW5kZ2QPFgICAgIDFgIQBQwwMjAwMjAwMzQwMDcFAzc1MmcQBQswNTAwMTAwNTU3OQUDNzk0Z2RkGAEFCGd2RGV0YWlsD2dkNluMBLPjjOtL0bcj6MAECxEc2ms=");
        NameValuePair __EVENTVALIDATION2 = new NameValuePair("__EVENTVALIDATION", "/wEWCwKMp47hDgLg2ZN+AsKGtEYC+OjGlwICrMHw9QgCs+GQ8Q4Ct67r/gsC4f3+FQLtgM2ICAKBlYDZCwLCi9reA/uS0jd+R+EbTMk75431NHsvKK5Y");
        NameValuePair txtStartDate = new NameValuePair("txtStartDate", "2011-01-20");
        NameValuePair txtEndDate = new NameValuePair("txtEndDate", "2011-01-23");
        NameValuePair ddlProductType = new NameValuePair("ddlProductType.x", "aa"); 
        NameValuePair ddlChannelNum = new NameValuePair("ddlChannelNum", "no"); 
        NameValuePair ddlType = new NameValuePair("ddlType", "day"); 
        NameValuePair btnSubmit2 = new NameValuePair("btnSubmit", "查 询");
       
        
        // （1）构造HttpClient的实例   
        HttpClient httpClient = new HttpClient();   
        httpClient.getParams().setContentCharset("GBK");
     // （2）创建POST方法的实例   
        PostMethod postMethod = new PostMethod("http://localhost/PhoneRead/default.aspx");   
     // （3）设置http request头   
        List headers = new ArrayList();   
        headers.add(new Header("COOKIE", COOKIEs[0].toString()));   
        httpClient.getHostConfiguration().getParams().setParameter("http.default-headers", headers);    //发送头信息 
        postMethod.setRequestBody(new NameValuePair[]{__VIEWSTATE2,__EVENTVALIDATION2,txtStartDate,txtEndDate,ddlProductType,ddlChannelNum,ddlType,btnSubmit2}); 
        
        // 使用系统提供的默认的恢复策略   
        postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler()); 
     
        try  
        {   
            // （4）执行postMethod   
            int statusCode = httpClient.executeMethod(postMethod);   
            if (statusCode != HttpStatus.SC_OK)   
            {   
                System.err.println("Method failed: " + postMethod.getStatusLine());   
            }   
            
            // （5）读取response头信息   
//            Header headerResponse = postMethod .getResponseHeader("COOKIE");   
            
//            String headerStr = headerResponse.getValue(); 
//            String headerStr = httpClient.getState().get
            
            // （6）读取内容   
            byte[] responseBody = postMethod.getResponseBody();   
            // （7） 处理内容   
//            System.out.println(headerStr);   
            System.out.println(new String(responseBody));   
        } 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)   
        {   
            e.printStackTrace();   
        } catch (Exception e)   
        {   
            e.printStackTrace();   
        } finally  
        {   
            // 释放连接   
            postMethod.releaseConnection();   
        }   

        
        
  }

}

借用一下，谢谢