package com.lgw.test;
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.methods.GetMethod; import org.apache.commons.httpclient.methods.PostMethod;
public class Test5 {
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public static void main(String[] args) {
// 登陆 Url
String loginUrl = "https://www.datalearner.com/login";
// 需登陆后访问的 Url
String dataUrl = "https://www.datalearner.com/account/";
HttpClient httpClient = new HttpClient();
// 模拟登陆，按实际服务器端要求选用 Post请求方式
PostMethod postMethod = new PostMethod(loginUrl);
// 设置登陆时要求的信息(表单)，用户名和密码
NameValuePair[] data = { new NameValuePair("username", "1733184622@qq.com"),
new NameValuePair("password", "lgw2921352") };
postMethod.setRequestBody(data);
try {
// 设置 HttpClient 接收 Cookie,用与浏览器一样的策略
httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
int statusCode=httpClient.executeMethod(postMethod);
// 获得登陆后的 Cookie
Cookie[] cookies = httpClient.getState().getCookies();
StringBuffer tmpcookies = new StringBuffer();
for (Cookie c : cookies) {
tmpcookies.append(c.toString() + ";");
System.out.println("cookies = "+c.toString());
}
if(statusCode==302){//重定向到新的URL
System.out.println("模拟登录成功");
// 进行登陆后的操作
GetMethod getMethod = new GetMethod(dataUrl);
// 每次访问需授权的网址时需带上前面的 cookie 作为通行证
getMethod.setRequestHeader("cookie", tmpcookies.toString());
// 你还可以通过 PostMethod/GetMethod 设置更多的请求后数据
// 例如，referer 从哪里来的，UA 像搜索引擎都会表名自己是谁，无良搜索引擎除外
postMethod.setRequestHeader("Referer", "https://www.datalearner.com/signin/");
postMethod.setRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36");
httpClient.executeMethod(getMethod);
// 打印出返回数据，检验一下是否成功
String text = getMethod.getResponseBodyAsString();
System.out.println(text);
}
else {
System.out.println("登录失败");
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}