使用java登录到网站事件

Question

我正尝试使用HttpClient务实地登录到该网站，如下所示：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
public class HttpClientWebAPITest {
  public static void main(String[] args) {
    HttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost("http://localhost:8080/login.jsp");
    try {
      List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
      nameValuePairs.add(new BasicNameValuePair("j_username", "mayank"));
      nameValuePairs.add(new BasicNameValuePair("j_password", "hexgen"));
      post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
      HttpResponse response = client.execute(post);
      BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
      String line = "";
      while ((line = rd.readLine()) != null) {
        System.out.println(line);
        if (line.startsWith("Auth=")) {
          String key = line.substring(5);
          System.out.println("key : hexgen : "+key);
          // Do something with the key
        }
      } 
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
} 

这个只是打印登录页面，但我想登录到系统并设置JSESSIONID和

想检查身份验证是否正确。

请帮我解决这个问题。

致以最诚挚的问候Anto

Answer 1

您很可能需要将凭据发布到另一个URL才能登录。http://localhost:8080/login.jsp只是登录页面的地址。在该jsp文件中查找一个form，该文件应该具有带有登录操作地址的action属性。类似于：

<form action="j_spring_security_check" method="post">

然后将您的请求指向该URL(http://localhost:8080/j_spring_security_check(。