SpringBoot全局处理系列--@ControllerAdvice

原文网址：SpringBoot全局处理系列--@ControllerAdvice_IT利刃出鞘的博客-CSDN博客

简介

本文用示例介绍如何进行SpringMVC的全局异常处理、全局响应处理、全局请求处理。

公共代码

下边这两个类好几处都用到了，单独把它提出来。

 User实体类

package com.example.business.entity;
 
import lombok.AllArgsConstructor;
import lombok.Data;
 
@Data
@AllArgsConstructor
public class User {
    private Long id;
    private String userName;
    private Integer age;
}

响应的包装

package com.example.demo.common.entity;

import lombok.Data;

@Data
public class Result<T> {
    private boolean success = true;

    private int code = 1000;

    private String message;

    private T data;

    public Result() {
    }

    public Result(boolean success) {
        this.success = success;
    }

    public Result<T> success(boolean success) {
        Result<T> result = new Result<>(success);
        if (success) {
            result.code = 1000;
        } else {
            result.code = 1001;
        }
        return result;
    }

    public Result<T> success() {
        return success(true);
    }

    public Result<T> failure() {
        return success(false);
    }

    /**
     * @param code {@link ResultCode#getCode()}
     */
    public Result<T> code(int code) {
        this.code = code;
        return this;
    }

    public Result<T> message(String message) {
        this.message = message;
        return this;
    }

    public Result<T> data(T data) {
        this.data = data;
        return this;
    }
}

自定义异常

package com.example.common.exception;

public class BusinessException extends RuntimeException{
    public BusinessException() {
        super();
    }

    public BusinessException(String message) {
        super(message);
    }

    public BusinessException(String message, Throwable cause) {
        super(message, cause);
    }
}

全局异常(@ExceptionHandler)

见：SpringBoot--全局异常处理--方法/实例_IT利刃出鞘的博客-CSDN博客

全局响应(ResponseBodyAdvice接口)

见：SpringBoot--全局响应处理--方法/实例_IT利刃出鞘的博客-CSDN博客

全局请求(@ModelAttribute)

见：SpringBoot--全局请求处理--方法/实例_IT利刃出鞘的博客-CSDN博客

全局格式处理(@InitBinder)

见：SpringBoot--全局格式处理--方法/实例_IT利刃出鞘的博客-CSDN博客