import org.apache.http.Consts; import org.apache.http.NameValuePair; import org.apache.http.client.config.CookieSpecs; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.impl.client.SystemDefaultCredentialsProvider; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.LinkedList; import java.util.List; import java.util.Scanner; public class Main { public static void main(String[] args) { RequestConfig requestConfig = RequestConfig.custom().setCookieSpec(CookieSpecs.STANDARD_STRICT).build(); CloseableHttpClient httpClient = HttpClients.custom().setDefaultRequestConfig(requestConfig).build(); HttpGet getHomePage = new HttpGet("http://www.zhihu.com/"); try { //填充登陆请求中基本的参数 CloseableHttpResponse response = httpClient.execute(getHomePage); String responseHtml = EntityUtils.toString(response.getEntity()); String xsrfValue = responseHtml.split("")[0]; System.out.println("_xsrf:" + xsrfValue); response.close(); List valuePairs = new LinkedList(); valuePairs.add(new BasicNameValuePair("_xsrf" , xsrfValue)); valuePairs.add(new BasicNameValuePair("email", 用户名)); valuePairs.add(new BasicNameValuePair("password", 密码)); valuePairs.add(new BasicNameValuePair("rememberme", "true")); //获取验证码 HttpGet getCaptcha = new HttpGet("http://www.zhihu.com/captcha.gif?r=" + System.currentTimeMillis() + "&type=login"); CloseableHttpResponse imageResponse = httpClient.execute(getCaptcha); FileOutputStream out = new FileOutputStream("/tmp/zhihu.gif"); byte[] bytes = new byte[8192]; int len; while ((len = imageResponse.getEntity().getContent().read(bytes)) != -1) { out.write(bytes,0,len); } out.close(); Runtime.getRuntime().exec("eog /tmp/zhihu.gif");//ubuntu下看图片的命令是eog //请用户输入验证码 System.out.print("请输入验证码："); Scanner scanner = new Scanner(System.in); String captcha = scanner.next(); valuePairs.add(new BasicNameValuePair("captcha", captcha)); //完成登陆请求的构造 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(valuePairs, Consts.UTF_8); HttpPost post = new HttpPost("http://www.zhihu.com/login/email"); post.setEntity(entity); httpClient.execute(post);//登录 HttpGet g = new HttpGet("http://www.zhihu.com/question/following");//获取“我关注的问题”页面 CloseableHttpResponse r = httpClient.execute(g); System.out.println(EntityUtils.toString(r.getEntity())); r.close(); } catch (IOException e) { e.printStackTrace(); } finally { try { httpClient.close(); } catch (IOException e) { e.printStackTrace(); } } } }