適用場景 , 返回給調用方一個統一的響應對象 , 即Controller中使用了@ResponseBody註解的方法 , 可以隨意返回Object , String , List 等 , 在該對象中進行統一處理並返回
package com.xbz.common.web.exception;
import com.alibaba.fastjson.JSONObject;
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;
/**
* @title 全局統一響應處理
* @author Xingbz
* @createDate 2019-8-2
*/
@ControllerAdvice
public class GlobalResponseBodyAdvice implements ResponseBodyAdvice {
/** 此處如果返回false , 則不執行當前Advice的業務 */
@Override
public boolean supports(MethodParameter returnType, Class converterType) {
return true;
}
/** 處理響應的具體業務方法 */
@Override
public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
if(body instanceof JSONModel){
return body;
}else{
if (body instanceof JSONObject){
return body;
}
JSONModel jsonModel = new JSONModel();
jsonModel.setCode(JSONModel.CODE_SUCCESS);
jsonModel.setMessage(JSONModel.MESSAGE_SUCCESS);
jsonModel.setData(body);
return jsonModel;
}
}
}