SpringBoot处理异常一之继承类

创建SpringBoot工程，导入依赖

       
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter-thymeleaf
        

编写异常类

@ControllerAdvice

public class MyException01 implements HandlerExceptionResolver {

    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
        ModelAndView modelAndView = new ModelAndView("error");
        modelAndView.addObject("error",ex.getMessage());
        return modelAndView;
    }
}

编写HTML文件，异常显示页面

测试

@RestController
public class HelloController {

    @GetMapping("/hello")
    public void hello(){
        int i=1/0;
    }
}

成功！