使用HttpClient模拟登录 博客园

最近在做Android版的博客园客户端，在考虑添加入登录功能，以实现获取更多的信息。

现在测试使用HttpClient进行模拟登陆。

登录页面：http://passport.cnblogs.com/login.aspx

登录结果页面：http://home.cnblogs.com/ 、 http://www.cnblogs.com/ 、……

登录的时候要求提供用户名和密码，属性分别是tbUserName 和 tbPassword；如图所示：

登录成功，转到下一个页面时，需要提供Cookies，还可以设置UA等属性：

具体代码：

package com.arlen.login;

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;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class ImitateLogin {

    public static void main(String[] args) {
        String userName = "username";
        String password = "password"
        String loginUrl = "http://passport.cnblogs.com/login.aspx";
        String dataUrl = "http://home.cnblogs.com/";
        HttpClientLogin(userName, password, loginUrl, dataUrl);
    }

    private static void HttpClientLogin(String userName, String password,
            String loginUrl, String dataUrl) {
        HttpClient httpClient = new HttpClient();
        httpClient.getParams().setParameter(
                HttpMethodParams.HTTP_CONTENT_CHARSET, "utf-8");
        PostMethod postMethod = new PostMethod(loginUrl);

        NameValuePair[] postData = { new NameValuePair("tbUserName", userName),
                new NameValuePair("tbPassword", password) };
        postMethod.setRequestBody(postData);

        try {

            httpClient.getParams().setCookiePolicy(
                    CookiePolicy.BROWSER_COMPATIBILITY);
            httpClient.executeMethod(postMethod);
            Cookie[] cookies = httpClient.getState().getCookies();
            StringBuffer stringBuffer = new StringBuffer();
            for (Cookie c : cookies) {
                stringBuffer.append(c.toString() + ";");
            }

            GetMethod getMethod = new GetMethod(dataUrl);
            getMethod.setRequestHeader("Cookie", stringBuffer.toString());
            postMethod.setRequestHeader("Host", "passport.cnblogs.com");
            postMethod.setRequestHeader("Referer", "http://home.cnblogs.com/");
            postMethod.setRequestHeader("User-Agent", "AndroidCnblogs");
            httpClient.executeMethod(getMethod);

            String result = getMethod.getResponseBodyAsString();
            System.out.println(result);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}