响应 200 ok 并转到错误行

Question

i'm using in my code observable object (subscribe) in angular. when the response of the request is 200 ok it still goes to the error line of the subscribe(the 2nd argument).

Code in java (server side):

import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import zoolpon.project.entities.Client;
import zoolpon.project.entities.CustomLogin;
import zoolpon.project.exceptions.InvalidLoginException;
import zoolpon.project.repositories.ClientRepository;
import zoolpon.project.services.UserService;

@CrossOrigin("http://localhost:4200")
@RestController
@RequestMapping("systemProject/User")
@Validated
public class UserWebService {

    @Autowired
    UserService userService;

    @Autowired
    private HttpServletRequest request;

    @Autowired
    ClientRepository clientRepository;

    @Autowired
    Logger logger;

    public CustomLogin getFacade() {
        HttpSession session = request.getSession(false);
        return (CustomLogin) session.getAttribute("FACADE");
    }

    @RequestMapping(path = "byCode/{phoneNumber}", method = RequestMethod.GET)
    public String getCode(@PathVariable String phoneNumber) throws InvalidLoginException {

        Client client = clientRepository.findByPhoneNumber(phoneNumber);
        Date date = new Date();
        String[] companies = getFacade().getCompany();

        for (String string : companies) {
            if (client.getCompany().equals(string)) {
                if (client.getExpire_time().after(date)) {
                    return client.getCode();
                }
                return "5 minutes already passed.";
            }
        }
        logger.info("Something went wrong , Invalid phone number.");
        return "Something went wrong , Invalid phone number.";
    }

}

and code in angular:

    this.MyHttpClient.get<any>("http://localhost:8080/systemProject/User/byCode/" + phoneNumber)
      .subscribe((res) => {this.res = true; this.err = false ;this.code = res; 
      if(this.code == null) {
        this.err = true;
      }
      },
        (err) => { this.err = true; this.res = false })


  }

when the response is 200k it still goes to the (err) line which initialize this.res to true instead of do the first expression.

In the browser when I open f12 and go to "network" tab i see the request back "5 minute already passed" -- > then, the problem must be in the typescript.

* important note:* at the first 2 min it goes to the (res) statements. after it no. and another question about the program: why when i use normal chrome and no unsecured one the chrome doesn't create JSESSIONID and still let me login.

Answer 1

Pass an empty element to subscribe function first, and use your customize function as a second argument and check, like below

subscribe((),(res) => {this.res = true; this.err = false ;this.code = res;