HttpClient登陆163 简单例子
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.methods.GetMethod; import org.apache.commons.httpclient.methods.PostMethod; public class Test { static final String LOGON_SITE = "http://mail.163.com"; static final int LOGON_PORT = 80; public static void main(String[] args) throws Exception { HttpClient client = new HttpClient(); client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT); //登录 PostMethod post = new PostMethod( "http://reg.163.com/logins.jsp?type=1&url=http://fm163.163.com/coremail/fcg/ntesdoor2?lightweight=1&verifycookie=1&language=-1&style=16"); NameValuePair username = new NameValuePair("username", "你的用户名@163.com"); NameValuePair password = new NameValuePair("password", "你的密码"); post.setRequestBody(new NameValuePair[] { username, password }); client.executeMethod(post); String responseString = new String(post.getResponseBodyAsString().getBytes( "gbk")); System.out .println("=========================登录页面==========================="); System.out.println(responseString); Cookie[] cookies = client.getState().getCookies(); client.getState().addCookies(cookies); post.releaseConnection(); int startPos = responseString .indexOf("http://reg.youdao.com/crossdomain.jsp?username="); int endPos = responseString.indexOf(""", startPos + 1); String newUrl = responseString.substring(startPos, endPos); System.out .println("===========================第一次页面转向============================"); System.out.println(newUrl); //以get方式请求跳转页面 GetMethod get = new GetMethod(newUrl); get.setRequestHeader("Cookie", cookies.toString()); client.executeMethod(get); responseString = new String(get.getResponseBodyAsString().getBytes("gbk")); //向控制台打印登陆后页面的html System.out .println("==========================第一次转向后的页面=================================="); System.out.println(responseString); get.releaseConnection(); startPos = responseString.indexOf("http://fm163.163"); endPos = responseString.indexOf(""", startPos + 1); newUrl = responseString.substring(startPos, endPos); System.out .println("=============================第二次页面转向======================================="); System.out.println(newUrl); get = new GetMethod(newUrl); get.setRequestHeader("Cookie", cookies.toString()); client.executeMethod(get); responseString = new String(get.getResponseBodyAsString().getBytes("gbk")); System.out.println("==========================第二次转向后的页面============================="); System.out.println(responseString); get.releaseConnection(); } } ?文章出处：http://xieruilin.iteye.com/blog/746299