Java HttpClient存在重定向句柄问题，并且在没有浏览器的情况下登录facebook

我花了三周的时间找到了一个不用浏览器登录facebook主页的解决方案。我编写了此示例代码，但它返回了一个错误：

org.apache.commons.httpclient.HttpMethodDirector是必需的 信息：请求重定向，但禁用了followRedirects

代码：

import java.io.IOException；
导入org.apache.commons.httpclient.Cookie；
导入org.apache.commons.httpclient.Header；
导入org.apache.commons.httpclient.httpclient；
导入org.apache.commons.httpclient.HttpException；
导入org.apache.commons.httpclient.HttpState；
导入org.apache.commons.httpclient.HttpStatus；
导入org.apache.commons.httpclient.HttpVersion；
导入org.apache.commons.httpclient.NameValuePair；
导入org.apache.commons.httpclient.cookie.CookiePolicy；
导入org.apache.commons.httpclient.methods.GetMethod；
导入org.apache.commons.httpclient.methods.PostMethod；
导入org.apache.commons.httpclient.params.HttpClientParams；
公共类formLogin{
公共静态void main（字符串[]args）引发HttpException、IOException{
//设置目标URL
字符串strURL=”http://www.facebook.com/login.php";;
System.out.println（“目标URL:+strURL”）；
//获取初始状态对象
HttpState initialState=新的HttpState（）；
//可以从持久性存储中检索初始cookie集
//并使用选择的持久性机制重新创建，
//Cookie mycokie=新Cookie（“.foobar.com”、“mycokie”、“stuff”，
//“/”，null，false）；
//然后添加到HTTP状态实例中
//initialState.addCookie（mycokie）；
//获取HTTP客户端实例
HttpClient HttpClient=新HttpClient（）；
httpclient.getHttpConnectionManager（）。
getParams（）.setConnectionTimeout（30000）；
//不要设置先发制人，这会强制进行基本身份验证，这不是我们想要的
httpclient.getHostConfiguration（）.getParams（）
.setParameter（HttpClientParams.PROTOCOL_VERSION，HttpVersion.HTTP_1_1）；
httpclient.setState（初始状态）；
//默认情况下使用RFC 2101 cookie管理规范
//解析、验证、格式化和匹配Cookie
//httpclient.getParams（）.setCookiePolicy（CookiePolicy.rfc2109）；
//可以选择不同的cookie管理规范
//需要时
//httpclient.getParams（）.setCookiePolicy（CookiePolicy.NETSCAPE）；
//提供Netscape Cookie草稿规范是为了完整性
//你几乎不想在现实生活中使用这个规范
httpclient.getParams（）.setCookiePolicy（CookiePolicy.BROWSER_兼容性）；
//为了模拟cookie，提供了兼容性策略
//管理某些领域流行的web浏览器
//不是100%符合标准
//Get HTTP Get方法
GetMethod httpget=新的GetMethod（strURL）；
//执行HTTP GET
int result=httpclient.executeMethod（httpget）；
//显示状态代码
System.out.println（“响应状态代码：+结果”）；
//拿到所有的饼干
Cookie[]cookies=httpclient.getState（）.getCookies（）；
//显示cookies
System.out.println（“当前cookies:”）；
for（int i=0；i

---

这个代码正确吗？我必须做什么才能遵循重定向？我已经尝试了

postmethod.setfollowredirect（true）

，但错误仍然存在。

postmethod是一个EntityEnclosingMethod。在PostMethod上调用setFollowRedirect（）将不起作用。见：

---

也许你应该先提出一个HEAD请求，或者你可以从一个不同的URL开始。试试看”http://www.facebook.com/login.php“而不是您拥有的URL

您好，我如何提交“想访问您的公共档案和朋友列表”对话框

import java.io.IOException;
import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpState;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.HttpVersion;
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.HttpClientParams;

public class formLogin {

    public static void main(String[] args) throws HttpException, IOException {
        // Set target URL
        String strURL = "http://www.facebook.com/login.php";;
        System.out.println("Target URL: " + strURL);

        // Get initial state object
        HttpState initialState = new HttpState();

        // Initial set of cookies can be retrieved from persistent storage
        // and re-created, using a persistence mechanism of choice,
        //Cookie mycookie = new Cookie(".foobar.com", "mycookie", "stuff",
        //        "/", null, false);

        // and then added to your HTTP state instance
        //initialState.addCookie(mycookie);

        // Get HTTP client instance
        HttpClient httpclient = new HttpClient();
        httpclient.getHttpConnectionManager().
                getParams().setConnectionTimeout(30000);

        // do not set preemptive, this forces Basic authentication which is not what we want
        httpclient.getHostConfiguration().getParams()
            .setParameter(HttpClientParams.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

        httpclient.setState(initialState);

        // RFC 2101 cookie management spec is used per default
        // to parse, validate, format & match cookies
        //httpclient.getParams().setCookiePolicy(CookiePolicy.RFC_2109);

        // A different cookie management spec can be selected
        // when desired
        //httpclient.getParams().setCookiePolicy(CookiePolicy.NETSCAPE);

        // Netscape Cookie Draft spec is provided for completeness
        // You would hardly want to use this spec in real life situations
        httpclient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);

        // Compatibility policy is provided in order to mimic cookie
        // management of popular web browsers that is in some areas
        // not 100% standards compliant

        // Get HTTP GET method    
        GetMethod httpget = new GetMethod(strURL);   

        // Execute HTTP GET
        int result = httpclient.executeMethod(httpget);

        // Display status code
        System.out.println("Response status code: " + result);

        // Get all the cookies
        Cookie[] cookies = httpclient.getState().getCookies();

        // Display the cookies
        System.out.println("Present cookies: ");
        for (int i = 0; i < cookies.length; i++) {
            System.out.println(" - " + cookies[i].toExternalForm());
        }

        // Release current connection to the connection pool
        // once you are done
        httpget.releaseConnection();

        //Cookie ist da und Jetzt wird eingeloggt

        PostMethod postMethod = new PostMethod("http://facebook.com/login.php");

        NameValuePair[] postData = new NameValuePair[2];
        postData[0] = new NameValuePair("email", "******");
        postData[1] = new NameValuePair("pass", "******");

        postMethod.setRequestBody(postData);
        for(int i = 0; i < cookies.length; i++){
            postMethod.setRequestHeader("Cookie:",cookies[i].toExternalForm());
        }

        try {
            httpclient.executeMethod(postMethod);
            int statuscode = postMethod.getStatusCode();
            System.out.println("STATUS CODE = "+statuscode);
        } catch (HttpException httpe) {
            System.err.print("HttpException");
            System.err.println(httpe.getMessage());
            httpe.printStackTrace();
        } catch (IOException ioe) {
            System.err.print("IOException");
            System.err.println(ioe.getMessage());
            ioe.printStackTrace();
        }
        String responseBody = postMethod.getResponseBodyAsString();
        System.out.println(responseBody);

        postMethod.releaseConnection();
    }
}