我试图在我的Spring Boot应用中转到登录页面,但出现此错误

Circular view path [/login.jsp]: would dispatch back to the current handler URL [/login.jsp] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)


在stackoverflow上,人们给出需要增加百里香依赖的建议

('org.springframework.boot:spring-boot-starter-thymeleaf')

但是之后我得到了这个错误

There was an unexpected error (type=Internal Server Error, status=500).
Error resolving template "login", template might not exist or might not be accessible by any of the configured Template Resolvers


此错误表明Spring在/resurses/templates文件夹中找不到模板login.html。
如果我在另一个文件夹中有自己的login.jsp并且不想使用任何模板,该怎么办?

这是我的登录映射

    @RequestMapping(value = "/login", method = RequestMethod.GET)
    public String login(Model model, String error, String logout) {

        if (error != null)
            model.addAttribute("error", "Your username and password is invalid.");

        if (logout != null)
            model.addAttribute("message", "You have been logged out successfully.");

        return "login";
    }


这是我的安全配置

 @Override
 protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                    .antMatchers("/resources/**", "/registration").permitAll()
                    .anyRequest().authenticated()
                    .and()
                .formLogin()
                    .loginPage("/login")
                    .loginProcessingUrl("/login")
                    .permitAll()
                    .and()
                .logout()
                    .permitAll();
 }

最佳答案

很简单,只需在您的控制器中为登录页面创建自己的映射,例如:

@Controller
public class AppController{

    @RequestMapping(value = "/login", method = RequestMethod.GET)
    public ModelAndView login(@RequestParam(value = "error", required = false) String error,
            @RequestParam(value = "logout", required = false) String logout, Model model, HttpServletRequest request) {

        ModelAndView view = new ModelAndView();
        if (error != null) {
            view.addObject("error", "Invalid username and password!");
        }

        if (logout != null) {
            view.addObject("msg", "You've been logged out successfully.");
        }

        view.setViewName("your-login-page");
        return view;
    }
}


并且配置应如下所示:

    @Override
            protected void configure(HttpSecurity http) throws Exception {
                http.authorizeRequests().and()
.formLogin().loginPage("/login").loginProcessingUrl("/login").failureUrl("/login?error")
        }


并且application.properties文件应如下所示:

spring.thymeleaf.suffix=.your-file-type
spring.thymeleaf.prefix=/WEB-INF/jsp-pages/


其中“ / WEB-INF / jsp-pages /”是您的文件目录

10-07 19:32
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