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=C10147&Code=1231"); client.executeMethod(get); System.out.println("Get请求:"+get.getResponseBodyAsString()); get.releaseConnection(); } }

jar包下载 lib