一. 简介

            记录日志方便排错，记录操作记录。通常有俩层需要加日志：controller层和service层。

            controller层的日志使用Log打印信息，service层的日志使用数据库记录操作日志。

二. 代码

2.1 切面类

package com.yss.shopping.aspect;
import com.alibaba.fastjson.JSONObject;
import com.yss.shopping.vo.ResultVO;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
/**
* 日志切面类
*/
@Aspect
@Component
@Slf4j
public class LogAspect {
/**
* ..表示包及子包 该方法代表controller层的所有方法
TODO 路径需要根据自己项目定义
*/
@Pointcut("execution(public * com.yss.shopping.controller..*.*(..))")
public void controllerMethod() {
}
/**
* 方法执行前
*
* @param joinPoint
* @throws Exception
*/
@Before("controllerMethod()")
public void LogRequestInfo(JoinPoint joinPoint) throws Exception {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
StringBuilder requestLog = new StringBuilder();
Signature signature = joinPoint.getSignature();
requestLog.append(((MethodSignature) signature).getMethod().getAnnotation(ApiOperation.class).value()).append("t")
.append("请求信息：").append("URL = {").append(request.getRequestURI()).append("},t")
.append("请求方式 = {").append(request.getMethod()).append("},t")
.append("请求IP = {").append(request.getRemoteAddr()).append("},t")
.append("类方法 = {").append(signature.getDeclaringTypeName()).append(".")
.append(signature.getName()).append("},t");
// 处理请求参数
String[] paramNames = ((MethodSignature) signature).getParameterNames();
Object[] paramValues = joinPoint.getArgs();
int paramLength = null == paramNames ? 0 : paramNames.length;
if (paramLength == 0) {
requestLog.append("请求参数 = {} ");
} else {
requestLog.append("请求参数 = [");
for (int i = 0; i < paramLength - 1; i++) {
requestLog.append(paramNames[i]).append("=").append(JSONObject.toJSONString(paramValues[i])).append(",");
}
requestLog.append(paramNames[paramLength - 1]).append("=").append(JSONObject.toJSONString(paramValues[paramLength - 1])).append("]");
}
log.info(requestLog.toString());
}
/**
* 方法执行后
*
* @param resultVO
* @throws Exception
*/
@AfterReturning(returning = "resultVO", pointcut = "controllerMethod()")
public void logResultVOInfo(ResultVO resultVO) throws Exception {
log.info("请求结果：" + resultVO.getCode() + "t" + resultVO.getMsg());
}
}

注意：

        如果有BaseController的话，不需要被日志扫描，可以通过添加不扫描路径即可。如下：

2.2 ResultVO类

package com.yzx.codedemo.vo;
import io.swagger.annotations.ApiModelProperty;
/**
* 返回结果类
*
* @param <T> 类型
*/
public class ResultVO<T> {
@ApiModelProperty("状态码 0失败 1成功 ")
private Integer code;
@ApiModelProperty("返回信息")
private String msg;
@ApiModelProperty("返回数据")
private T data;
public ResultVO(Integer code, String msg) {
this.code = code;
this.msg = msg;
}
public ResultVO(Integer code, String msg, T data) {
this.code = code;
this.msg = msg;
this.data = data;
}
/**
* 请求成功
状态码 1
*
* @param msg 返回信息
* @param <T> 类型
* @return ResultVO
*/
public static <T> ResultVO getSuccess(String msg) {
return new ResultVO(1, msg);
}
/**
* 请求成功
状态码 1
*
* @param msg
返回信息
* @param data 返回对象
* @param <T>
类型
* @return ResultVO
*/
public static <T> ResultVO getSuccess(String msg, T data) {
return new ResultVO(1, msg, data);
}
/**
* 请求失败
状态码 0
*
* @param msg 返回信息
* @param <T> 类型
* @return ResultVO
*/
public static <T> ResultVO getFailed(String msg) {
return new ResultVO(0, msg);
}
/**
* 请求失败
状态 0
*
* @param msg
返回信息
* @param data 返回数据
* @param <T>
类型
* @return ResultVO
*/
public static <T> ResultVO getFailed(String msg, T data) {
return new ResultVO(0, msg, data);
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
}

2.3 Controller类

package com.yzx.codedemo.controller.user;
import com.yzx.codedemo.entity.user.SysUser;
import com.yzx.codedemo.service.user.SysUserService;
import com.yzx.codedemo.vo.PageVO;
import com.yzx.codedemo.vo.ResultVO;
import com.yzx.codedemo.vo.user.SysUserVO;
import io.swagger.annotations.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;
import java.util.List;
@Api(tags = {"SysUserController"}, description = "用户Controller")
@RestController
@RequestMapping(value = "/sysuser")
public class SysUserController {
@Autowired
private SysUserService sysUserService;
@ApiOperation("查询用户分页列表")
@ApiImplicitParams({
@ApiImplicitParam(paramType = "query", dataType = "Long", name = "currentPage", value = "当前页码", required = true),
@ApiImplicitParam(paramType = "query", dataType = "Long", name = "pageSize", value = "每页记录数", required = true),
@ApiImplicitParam(paramType = "query", dataType = "String", name = "userName", value = "用户名称", required = false),
@ApiImplicitParam(paramType = "query", dataType = "String", name = "phone", value = "手机号", required = false),
@ApiImplicitParam(paramType = "query", dataType = "Long", name = "userState", value = "用户状态: 0删除 1正常", required = false),
@ApiImplicitParam(paramType = "query", dataType = "String", name = "starttime", value = "开始时间 格式：yyyy-MM-dd HH:mm:ss", required = false),
@ApiImplicitParam(paramType = "query", dataType = "String", name = "endtime", value = "结束时间 格式：yyyy-MM-dd HH:mm:ss", required = false)
})
@GetMapping(value = "/page")
public ResultVO<PageVO<SysUserVO>> selectSysUserPage(@ApiIgnore SysUserVO sysUserVO) {
try {
return this.sysUserService.selectSysUserPage(sysUserVO);
} catch (Exception e) {
e.printStackTrace();
return ResultVO.getSuccess("查询用户分页列表失败");
}
}
}

2.3 测试

每次调用controller层的代码的方法，都会打印日志信息：

2018-08-22 16:17:12.251
INFO 12200 --- [nio-8080-exec-1] com.yzx.codedemo.aspect.LogAspect
: 请求信息：URL = {/sysuser/page},	HTTP_METHOD = {GET},	IP = {0:0:0:0:0:0:0:1},	CLASS_METHOD = {com.yzx.codedemo.controller.user.SysUserController.selectSysUserPage},	ARGS = {"currentPage":1,"pageSize":10}
2018-08-22 16:17:12.319 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage_COUNT
: ==>
Preparing: SELECT count(0) FROM sys_user WHERE 1 = 1
2018-08-22 16:17:12.336 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage_COUNT
: ==> Parameters:
2018-08-22 16:17:12.351 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage_COUNT
: <==
Total: 1
2018-08-22 16:17:12.356 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage
: ==>
Preparing: SELECT id AS user_id, user_name, password, phone, createtime FROM sys_user WHERE 1=1 ORDER BY createtime DESC LIMIT ?
2018-08-22 16:17:12.357 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage
: ==> Parameters: 10(Integer)
2018-08-22 16:17:12.363 DEBUG 12200 --- [nio-8080-exec-1] c.y.c.m.u.S.selectSysUserPage
: <==
Total: 10
2018-08-22 16:17:12.365
INFO 12200 --- [nio-8080-exec-1] com.yzx.codedemo.aspect.LogAspect
: 请求结果：1	查询分页列表成功

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