登录界面，首先随意输入一个账号，登录查看发送表单的请求
可以发现请求是Post : https://www.zhihu.com/login/phone_num
发送的表单是
_xsrf:
password: 密码 无需加密
captcha: 验证码 无需验证码时为不用此项 ，需要验证码时为验证码图片倒立字体坐标
captcha_type:cn
phone_num: 账号
1 package 知乎模拟登录; 2 3 import org.apache.http.HttpEntity; 4 import org.apache.http.NameValuePair; 5 import org.apache.http.client.entity.UrlEncodedFormEntity; 6 import org.apache.http.client.methods.CloseableHttpResponse; 7 import org.apache.http.client.methods.HttpPost; 8 import org.apache.http.impl.client.CloseableHttpClient; 9 import org.apache.http.impl.client.HttpClients; 10 import org.apache.http.message.BasicNameValuePair; 11 import org.apache.http.protocol.HTTP; 12 import org.apache.http.util.EntityUtils; 13 14 import java.util.ArrayList; 15 import java.util.List; 16 17 public class GetProblem { 18 public static void main(String[] args) throws Exception { 19 CloseableHttpClient closeableHttpClient = HttpClients.createDefault() ; 20 HttpPost httpPost = new HttpPost("https://www.zhihu.com/login/phone_num") ; 21 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); 22 nvps.add(new BasicNameValuePair("_xsrf", "66653239623962342d396237632d346233332d396331362d333434386438326438616139")); 23 nvps.add(new BasicNameValuePair("password", "1325200471")); 24 nvps.add(new BasicNameValuePair("captcha_type", "cn")); 25 nvps.add(new BasicNameValuePair("phone_num", "15890956765")); 26 27 httpPost.setEntity(new UrlEncodedFormEntity(nvps)); 28 CloseableHttpResponse closeableHttpResponse = closeableHttpClient.execute(httpPost) ; 29 HttpEntity entity = closeableHttpResponse.getEntity() ; 30 String s = EntityUtils.toString(entity); 31 System.out.println(s); 32 } 33 }
可能出现的情况
请求返回体为：
{
"r": 1,
"errcode": 1991829,
"data": {"captcha":"\u9a8c\u8bc1\u7801\u9519\u8bef"},
"msg": "\u9a8c\u8bc1\u7801\u9519\u8bef"
}
"errcode": 1991829
