使用 @ControllerAdvice & ResponseBodyAdvice 拦截Controller方法默认返回参数，统一处理返回值/响应体

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1、Controller代码

以下是Controller查询方法源码：

/**

 * controller

 *

 * @author yclimb

 * @date 2018/6/29.

 */

@RestController

@RequestMapping("/manage/user")

public class TestController {

    private Logger logger = LoggerFactory.getLogger(TestController.class);

    /**

     * 通过会员id获取会员信息及详情

     *

     * @param id 会员id

     * @return app msg

     *

     * @author yclimb

     * @date 2018/6/29

     */

    @GetMapping("/edit/{id}")

    public AppMessage edit(@PathVariable Integer id) {

        if (null == id) {

            return AppMessage.error(-3, "会员ID不能为空");

        }

        // 查询会员对象

        User user = userService.queryById(id);

        if (user == null) {

            return AppMessage.error(-3, "根据会员ID未查询到对应会员");

        }

        return AppMessage.success(user);

    }

}

2、拦截处理器

下面已经封装好了一个拦截处理类以供参考：

package com.yclimb.test;

import org.springframework.core.MethodParameter;

import org.springframework.http.MediaType;

import org.springframework.http.server.ServerHttpRequest;

import org.springframework.http.server.ServerHttpResponse;

import org.springframework.web.bind.annotation.ControllerAdvice;

import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**

 * 拦截Controller方法默认返回参数，统一处理返回值/响应体

 *

 * @author yclimb

 * @date 2018/6/29

 */

@ControllerAdvice

public class TestResponseBodyAdvice implements ResponseBodyAdvice {

    @Override

    public Object beforeBodyWrite(Object o, MethodParameter methodParameter, MediaType mediaType, Class aClass, ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {

        System.out.println("TestResponseBodyAdvice==>beforeBodyWrite:" + o.toString() + ","

                + methodParameter);

        return o;

    }

    @Override

    public boolean supports(MethodParameter methodParameter, Class aClass) {

        return true;

    }

}

3、测试方法

Controller:

ResponseBodyAdvice:

结语

到此本文就结束了，关注公众号查看更多推送！！！

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