Java访问网络，模拟登陆，进入网站内部(使用 HttpClient ), jar包在下面可以直接下载

import org.apache.commons.httpclient.Cookie;

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;

public class Link {

static final String LOGON_SITE = “ localhost ” ;//主机地址

static final int LOGON_PORT = 18181;//端口号

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

HttpClient client = new HttpClient();//打开新窗口

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

// 模拟手动登录页面,home是处理登陆的antion

PostMethod post = new PostMethod( “/home” );

NameValuePair username = new NameValuePair( “username” , “admin” );

NameValuePair pass = new NameValuePair( “password” , “admin” );

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

int status = client.executeMethod(post);

post.releaseConnection();

// 查看 cookie，并传递Cookies到服务器认证

CookieSpec cookiespec = CookiePolicy.getDefaultSpec();

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

if (cookies.length == 0) {

System.out.println( “没有Cookies” );

} else {

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

System.out.println(“Cookies：”+cookies[i].toString());

}

}

// 因为前面已经登陆了，也加入了Cookies，所以才可以直接访问这个地址，这个才是需要访问的真正antion

GetMethod get=new GetMethod(“/corpcode/renzheng?Corpcode=CXXXXX&Code=1231”);

client.executeMethod(get);

System.out.println(“Get请求:”+get.getResponseBodyAsString());

get.releaseConnection();

}

}

jar包下载 lib :

如果你换这类文章，可以订阅我，我还会继续发类似文章的。谢谢你————vsalw