HttpClient实现页面登录功能

package test;

import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
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 dao.HttpClientDao;

public class HttpClientxcxxgl {
static final String LOGON_SITE = "139.16.24.7";
static final int    LOGON_PORT = 8888;

public static void main(String[] args) throws Exception{
HttpClient client = new HttpClient();
client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT);
HttpClientDao dao = new HttpClientDao();
//模拟登录页面login.action->main.action
PostMethod post = new PostMethod("http://139.16.24.7:8888/qysds/login.action");
NameValuePair name = new NameValuePair("name", "wyx3");
NameValuePair pass = new NameValuePair("password", "hbdswyx");
post.setRequestBody(new NameValuePair[]{name,pass});
int status = client.executeMethod(post);
System.out.println(post.getResponseBodyAsString());
post.releaseConnection();
//查看cookie信息
CookieSpec cookiespec = CookiePolicy.getDefaultSpec();
Cookie[] cookies = cookiespec.match(LOGON_SITE, LOGON_PORT, "/", false, client.getState().getCookies());
boolean bLogin = false;
if (cookies.length == 0) {
dao.insertHtml("http://139.16.24.7:8888/qysds/login.action");
} else {
for (int i = 0; i < cookies.length; i++) {
System.out.println(cookies[i].toString());
System.out.println("登录成功");
bLogin = true;
}
}
if(bLogin){
//访问所需的页面main.action
GetMethod get = new GetMethod("/qysds/main.action");
client.executeMethod(get);
System.out.println(get.getResponseBodyAsString());
get.releaseConnection();
}
}
}

不知道哪儿出问题了。 HttpClient cookies cookie --------------------编程问答-------------------- 你还是把异常信息帖出来吧，要不人家怎么帮你分析。 --------------------编程问答--------------------



package test;



import org.apache.commons.httpclient.Cookie;

import org.apache.commons.httpclient.Header;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.NameValuePair;

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 dao.HttpClientDao;



public class HttpClientxcxxgl {  

static final String LOGON_SITE = "139.16.24.7";  

static final int    LOGON_PORT = 8888;  



public static void main(String[] args) throws Exception{  

HttpClient client = new HttpClient();  

client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT);

HttpClientDao dao = new HttpClientDao();

//模拟登录页面login.action->main.action  

PostMethod post = new PostMethod("http://139.16.24.7:8888/qysds/login.action");  

NameValuePair name = new NameValuePair("name", "wyx3");      

NameValuePair pass = new NameValuePair("password", "hbdswyx");      

post.setRequestBody(new NameValuePair[]{name,pass});  

int status = client.executeMethod(post);  

System.out.println(post.getResponseBodyAsString());  

post.releaseConnection();  

//查看cookie信息  

CookieSpec cookiespec = CookiePolicy.getDefaultSpec();  

Cookie[] cookies = cookiespec.match(LOGON_SITE, LOGON_PORT, "/", false, client.getState().getCookies());  

boolean bLogin = false;

if (cookies.length == 0) {

dao.insertHtml("http://139.16.24.7:8888/qysds/login.action");

} else {  

for (int i = 0; i < cookies.length; i++) {  

System.out.println(cookies[i].toString());

System.out.println("登录成功");

bLogin = true;

}

}  

if(bLogin){

//访问所需的页面main.action  

GetMethod get = new GetMethod("/qysds/main.action");  

client.executeMethod(get);  

System.out.println(get.getResponseBodyAsString());  

get.releaseConnection();  

}

}  

}

补充：Java ,  Java SE