HttpClient模拟登录知乎

gaopu · gaopu · commit 793cec12631d · 2015-05-06T17:31:04.000+08:00
diff --git a/Main.java b/Main.java
@@ -0,0 +1,55 @@
+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.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
+
+import java.io.IOException;
+import java.util.LinkedList;
+import java.util.List;
+
+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 get = new HttpGet("http://www.zhihu.com/");
+        try {
+            CloseableHttpResponse response = httpClient.execute(get);
+            String responseHtml = EntityUtils.toString(response.getEntity());
+            String xsrfValue = responseHtml.split("<input type=\"hidden\" name=\"_xsrf\" value=\"")[1].split("\"/>")[0];
+            System.out.println("xsrfValue:" + xsrfValue);
+            response.close();
+            List<NameValuePair> valuePairs = new LinkedList<NameValuePair>();
+            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", "y"));
+
+            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(valuePairs, Consts.UTF_8);
+            HttpPost post = new HttpPost("http://www.zhihu.com/login");
+            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();
+            }
+        }
+    }
+}
