拦截 @ResponseBody 标签输出的结果打印日志

 

@ResponseBody

@RequestMapping(value = "order/pickupinfo", method = RequestMethod.POST, produces = {

"application/json;charset=UTF-8" })

public ResReslt orderList(String req, HttpServletResponse response) {

 

   saveLog（。。。）//保存日志方法

return tt;

}

 

如果使用上面的方面编写编写输出日志的话，每个方法中都需要写saveLog（。。。），这样搞维护起来比较麻烦，也有可能会有遗漏的地方没有输出日志。

 

下面我们通过实现import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

这个接口的方式输出日志：

 

package com.cloud.tools.aop;

 

import org.slf4j.Logger;

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;

 

import com.cloud.api.pojo.ResPageReslt;

import com.cloud.api.pojo.ResReslt;

import com.cloud.api.util.ObjToJson;

import com.cloud.log.ReqAndResLog;

 

@ControllerAdvice 

public class ResponseBodyAdviceImp implements ResponseBodyAdvice{

 

Logger jsonLog = org.slf4j.LoggerFactory.getLogger(ResponseBodyAdviceImp.class);

 

@Override

public boolean supports(MethodParameter returnType, Class converterType) {

return true;

}

 

@Override

public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType,

Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {

 

if(null !=body){

String flag = body.toString();

ReqAndResLog reqAndResLog = new ReqAndResLog();

ReqAndResLog temp = reqAndResLog.getInfo();

if(temp !=null){

//已经存在日志对象时，进行比较

if(flag.toString().equals(temp.getRes())){

//移除日志对象

reqAndResLog.remove();

 

StringBuffer res = new StringBuffer(60);

res.append(returnType.getMethod().getName()).append(";");

if(body instanceof ResReslt){

res.append(ObjToJson.ResResltToStr((ResReslt)body));

}else if(body instanceof ResPageReslt){

res.append(ObjToJson.ResPageResltToStr((ResPageReslt)body));

}

 

jsonLog.debug(res.toString());

}

}else{

//不存在日志对象，加入

reqAndResLog.setRes(flag);

reqAndResLog.setInfo(reqAndResLog);

}

}

 

return body;

}

 

 

}

 

 

package com.cloud.log;

 

public class ReqAndResLog {

 

public static final ThreadLocal<ReqAndResLog> REQ_AND_RES_LOG = new ThreadLocal<ReqAndResLog>();

//请求参数

private String req;

 

private String res;

 

public String getRes() {

return res;

}

 

public void setRes(String res) {

this.res = res;

}

 

public String getReq() {

return req;

}

 

public void setReq(String req) {

this.req = req;

}

 

public void setInfo(ReqAndResLog reqAndResLog){

REQ_AND_RES_LOG.set(reqAndResLog);

}

 

 

public ReqAndResLog getInfo(){

return REQ_AND_RES_LOG.get();

}

 

public void remove(){

REQ_AND_RES_LOG.remove();

}

 

 

}

 

ReqAndResLog：作用是防止同样的日志输出两边；

 

 

2.配置文件

 

<bean id="ResponseBodyAdviceImp" class="com.cloud.tools.aop.ResponseBodyAdviceImp" />