全局异常处理,省去各种Try/Catch
暂时举例返回字符串
1、项目包下创建 GlobalDefaultExceptionHandler 类
2、在class注解上@ControllerAdvice
3、在方法上注解上@ExceptionHandler(value = Exception.class)
@ControllerAdvice
public class GlobalDefaultExceptionHandler {
@ExceptionHandler(Exception.class)
@ResponseBody
public String exceptionHandler(HttpServletRequest request, Exception e) {
return "服务器繁忙中...";
}
}