How to implement page switching through the controller layer in springboot

Springboot realizes page switching through controller layer

background

When completing a web project through springboot, imagine using springmvc to achieve page switching through the controller layer.

Implementation method

//return "dashboard";//This is parsed by the template engine and then spelled the string//return "forward:/";//This is forwardingreturn "redirect:/";//This is a redirect

The final browser returns only the string itself: redirect:/. Page switching cannot be achieved.

Various Baidu cannot be solved. Finally, I found out that it was because of the springboot annotation.

The default annotation of springboot control layer is:@RestController , and @RestController is a combination of @Controller and @ResponseBody.

@ResponseBody will convert the return value to a string, so the result can only be a string.

After changing @RestController to @Controller, the page switching is implemented.

package ;
 
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import org.;
import org.;
import ;
import ;
import ;
import ;
import ;
 
import ;
import ;
import ;
 
@Api(tags = "Log in")
@Controller
public class LoginController {
    @Value("${baseurl}")
    private String baseurl;
    @Value("${login_url}")
    private String loginUrl;
    @Value("${logout_url}")
    private String logoutUrl;
    private static final Logger LOGGER = ();
 
    @ApiOperation(value = "Log in", notes = "Login Verification")
    @ApiImplicitParams({@ApiImplicitParam(name = "username", value = "Name", required = true, dataType = "String"),
            @ApiImplicitParam(name = "password", value = "password", required = true, dataType = "String")
    })
    @RequestMapping(value = "/", method = )
    @ResponseBody
    public ResponseBean login(String username, String password) {
        String url = baseurl + loginUrl;
        Map&lt;String, String&gt; map = new HashMap&lt;&gt;();
        ("username", username);
        ("password", password);
        String result = "";
        //Request service failed        try {
            result = (url, map);
        } catch (Exception e) {
            ();
            ("User Login", e);
            return new ResponseBean(, "System exception, please contact the administrator", "");
        }
        JSONObject json = (result);
        //Log in verification failed        if (!("code").equals( + "")) {
            ResponseBean responseBean = (, result);
            return responseBean;
        }
        //Verify and set token in session        JSONObject dataJson = (JSONObject) ("data");
        String userJson = ("user");
        SysUser sysUser = (, userJson);
        JSONObject tokenJson = (JSONObject) ("token");
        String token = ("token");
        (token);
        (sysUser);
//        ("token", token);
//        ("user", sysUser);
        String url1 = "/";
        Map&lt;String, Object&gt; resMap = new HashMap&lt;&gt;();
        ("url", url1);
        return new ResponseBean(, "Login successfully", resMap);
    }
 
    /**
      * Log out
      *
      * @param request
      * @return
      */
    @RequestMapping("/")
    public String loginOut(HttpServletRequest request) {
        ().invalidate();
        String url=baseurl+logoutUrl;
        (url);
        return "redirect:/";
    }
}

Summarize

The above is personal experience. I hope you can give you a reference and I hope you can support me more.