使用 Java 登录 www.messenger.com

Posted 2023-02-25

【中文标题】使用 Java 登录 www.messenger.com

【英文标题】：Using Java to login into www.messenger.com

【发布时间】：2016-10-21 01:02:17

【问题描述】：

我在使用我发现的登录 www.messenger.com 的代码时遇到问题。似乎我无法写出表单参数，因为我没有正确的表单名称。我无法找到按钮的表单名称以及将其设置为等于什么。我的最终目标是在我登录后获取 html 代码。

来源：http://www.dreamincode.net/forums/blog/114/entry-2715-login-to-a-website-from-java/

import java.net.*;
import java.io.*;

private static URL URLObj;
private static URLConnection connect;

public static void main(String[] args) 
    try 
        // Establish a URL and open a connection to it. Set it to output mode.
        URLObj = new URL("http://www.messenger.com/#");
        connect = URLObj.openConnection();
        connect.setDoOutput(true);  
    
    catch (MalformedURLException ex) 
        System.out.println("The URL specified was unable to be parsed or uses an invalid protocol. Please try again.");
        System.exit(1); 
    
    catch (Exception ex) 
        System.out.println("An exception occurred. " + ex.getMessage());
        System.exit(1);
    


    try 
        // Create a buffered writer to the URLConnection's output stream and write our forms parameters.
        BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(connect.getOutputStream()));
        writer.write("email=MyEmail&pass=MyPassword&submit=Sign In");
        //writer.close();

        // Now establish a buffered reader to read the URLConnection's input stream.
        BufferedReader reader = new BufferedReader(new InputStreamReader(connect.getInputStream()));

        String lineRead = "";

        // Read all available lines of data from the URL and print them to screen.
        while ((lineRead = reader.readLine()) != null) 
            System.out.println(lineRead);
        
        reader.close();
    
    catch (Exception ex) 
        System.out.println("There was an error reading or writing to the URL: " + ex.getMessage());
    

【问题讨论】：

这只是一个修复我的代码，代码转储

【参考方案1】：

这是点击登录时由浏览器发送的帖子参数：

default_persistent=0
email=user
initial_request_id=A2NPA_SLbM3wAkFRM_Y0fLx
lgndim=eyJ3IjoxOTIwLCJoIjoxMjAwLCJhdyI6MTkyMCwiYWgiOjExNjAsImMiOjI0fQ==
lgnjs=n
lgnrnd=125813_Br9w
login=1
lsd=AVrsF9i0
pass=pass
timezone=-120

也许您需要其中一些才能成功登录。

您可以在 ID 为“login_form”的表单中找到这些隐藏参数。