有机肥

一，登录要Post的表单数据是什么

这部分可以使用Wireshark工具来抓包就可以了，发现需要以下数据:

• 获取_xsrf数据:

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("<input type=\"hidden\" name=\"_xsrf\" value=\"")[1].split("\"/>")[0];             
System.out.println("_xsrf:" + 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", "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();             
}        
 }