全局异常处理@controlleradvice_项目中全局异常怎么设计的

    <bean id="helloworld" class="me.aihe.exam.controller.HelloWorld" />
    
    <!-- timelog实现了MethodBeforeAdvice接口 -->
    <bean id="timeLog" class="me.aihe.exam.controller.TimeLoggingAop" />
    <aop:config>
        <aop:pointcut id="hello" expression="execution(public * * (..))"></aop:pointcut>
        
        <!-- advisor的作用为将Pointcut和Advice组装起来 -->
        <aop:advisor
                id="timelogAdvisor"
                advice-ref="timeLog"
                pointcut-ref="hello"
        />
    </aop:config>

// TimeLoggingAop实现了前置增强，后置增强，异常环绕增强
public class TimeLoggingAop implements MethodBeforeAdvice,AfterReturningAdvice,ThrowsAdvice {
    private long startTime = 0;

    @Override
    public void before(Method method, Object[] objects, Object o) throws Throwable {
        startTime = System.nanoTime();
    }


    @Override
    public void afterReturning(Object returnValue, Method method, Object[] objects, Object target) throws Throwable {
        long spentTime = System.nanoTime() - startTime;
        String clazzName = target.getClass().getCanonicalName();
        String methodName = method.getName();
        System.out.println("执行" + clazzName + "#" + methodName + "消耗" + new BigDecimal(spentTime).divide(new BigDecimal(1000000)) + "毫秒");
    }

    public void afterThrowing(Method method, Object[] args, Object target, Exception ex){
        System.out.println("执行" + method.getName() + "出现异常，" + "异常消息为：" + ex.getMessage());
    }
}
// 普通的HelloWorld对象
public class HelloWorld {
    
    public void sayHello(){
        System.out.println("hello");
    }

    public void sayHelloWithException(){
        System.out.println("hello");
        throw new RuntimeException("Hello World运行时出了一点问题");
    }
}

  public static void main(String[] args) {
        //普通对象
        HelloWorld helloWorld = new HelloWorld();
        //增强对象
        BeforeAdvice beforeAdvice = new TimeLoggingAop();
        //组装普通对象和增强对象
        ProxyFactory proxyFactory = new ProxyFactory();
        proxyFactory.setTarget(helloWorld);
        proxyFactory.addAdvice(beforeAdvice);

        //获取组装后的代理对象
        HelloWorld proxyHelloWorld = (HelloWorld) proxyFactory.getProxy();
        //运行
        proxyHelloWorld.sayHello();
        proxyHelloWorld.sayHelloWithException();
    }

//运行结果
hello
执行me.aihe.exam.controller.HelloWorld#sayHello消耗29.392268毫秒

hello
执行sayHelloWithException出现异常，异常消息为：Hello World运行时出了一点问题

package com.liurq.config.shiro.handle;

import org.apache.shiro.authz.UnauthorizedException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.NativeWebRequest;

@ControllerAdvice
public class UnauthorizedExceptionHandle {

    /**
     * 可以获取请求的request对象，按需进行操作
     * 可以获取抛出的异常对象，按需进行操作
     * 可对请求进行重定向，将请求重定向到某个页面或控制器
     * 需要返回json串儿的话，在方法上添加@ResponseBody注解即可
     * @param request
     * @param e
     * @return
     */
//    @ResponseBody
    @ExceptionHandler({UnauthorizedException.class})
    public String unauthorizedException(NativeWebRequest request, UnauthorizedException e){
        System.out.println(request.getParameter("param1"));
        e.printStackTrace();
        return "redirect:/403";
    }
}

@ControllerAdvice
public class MyControllerAdvice {

    /**
     * 转换前端传入的日期变量参数为指定格式。
     *
     * @param binder 数据绑定参数。
     */
    @InitBinder
    public void initBinder(WebDataBinder binder) {
        binder.registerCustomEditor(Date.class,
                new CustomDateEditor(new SimpleDateFormat(MyDateUtil.COMMON_SHORT_DATETIME_FORMAT), false));
    }
}

public class DispatcherServlet extends FrameworkServlet{
  //......
  protected void initStrategies(ApplicationContext context){
      initMultipartResolver(context);
      initLocaleResolver(context);
      initThemeResolver(context);
      initHandlerMappings(context);
      initHandlerAdapters(context);
      initHandlerExceptionResolvers(context);
      initRequestToViewNameTranslator(context);
      initViewResolvers(context);
      initFlashMapManager(context);        
  }    
  //......  
}

/**
 *  返回应答中的错误信息
 * **/
public enum ErrorCodeEnum {

    NO_ERROR("没有错误"),
   
    DATA_VALIDATED_FAILED("数据验证事白，请核对！"),

    UNHANDLED_EXCEPTION("未处理的异常！");

    ErrorCodeEnum(String errorMessage) { this.errorMessage = errorMessage; }

    private final String errorMessage;

    public String getErrorMessage(){
        return errorMessage;
    }
}

public class CallResult{
    private static final CallResult OK = new CallResult();   
    private boolean success = true;
    private String errorMessage = null;
    private JSONObject data;

    public static CallResult create(String errorMessage){      
        return errorMessage == null ? ok() " error(errorMessage);
    }

    public static CallResult ok() { return OK; }

    public static CallResult ok(JSONObject data){       
        CallResult result = new CallResult();
        result.data = data;
        return result;
    }

    public static CallResult error(String errorMessage) {
        CallResult result = new CallResult();
        result.success = false;
        result.errorMessage = errorMessage;
        return result;
    }
    
    public static <T> CallResult error(String errorMessage, T data){
        CallResult result = new CallResult();
        result.success = false;
        result.errorMessge = errorMessage;
        JSONObject jsonObject  new JSONObject();
        jsonObject.put("errorData", data);
        result.data = jsonObject;
        return result;
    }
}

package com.****.demo.common;

import org.springframework.context.support.DefaultMessageSourceResolvable;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.stream.Collectors;

@RestControllerAdvice("com.****.demo")
public class MyExceptionHandler {

    //@NotBlank抛出异常处理
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public CallResult bindExceptionHandle(MethodArgumentNotValidException ex){
        String message = ex.getBindingResult().getAllErrors().stream().map(DefaultMessageSourceResolvable::getDefaultMessage).collect(Collectors.joining());
        return CallResult.error(message);
    }
}

public class User implements Serializable {

    @ApiModelProperty(value = "名称")
    @NotBlank(message = "name不能为空(哈哈，自定义哒)")
    private String demoName;

    @ApiModelProperty(value = "年龄")
    @NotNull(message = "age 不能为空")
    private Integer age;

    @ApiModelProperty(value = "id")
    @NotNull(message = "id 不能为空")
    private Integer id;
}

@RestController    
public class UserController{

    @PostMapping("/setUser")
    @ApiOperation(value = "获取用户信息")
    public CallResult updateUser(@RequestBody @Valid User user) {
        userService.setUser(user);
        return CallResult.ok();
    }
}