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JAVA实现通用日志记录方法

2017-06-05 16:15 681 查看

前言:

之前想在filter层直接过滤httpServerletRequest请求进行日志处理,但是之后再getWriter()的 时候报already been call异常。查了下,才发现原来流形式的只能读取一次。。就好像食物,吃了就没了。。 所以在filter和inteceptor里面是没法通过获取request的流来进行日志记录的。

于是还是准备用通用的方法:controller层aop进行切面记录日志。

使用Aop记录操作日志

第一步:添加Aop

/**
* 统一日志处理Handler
* @author Mingchenchen
*
*/
public class LogAopHandler {
@Autowired
private AuditLogDao auditLogDao;
/**
* controller层面记录操作日志
* 注意此处是aop:around的 因为需要得到请求前的参数以及请求后接口返回的结果
* @throws Throwable
*/
public Object doSaveLog(ProceedingJoinPoint joinPoint) throws Throwable {
MethodSignature method = (MethodSignature) joinPoint.getSignature();
String methodName = method.getName();
Object[] objects = joinPoint.getArgs();
String requestBody = null;
if (objects!=null && objects.length>0) {
for (Object object : objects) {
if (object == null) {
requestBody = null;//POST接口参数为空 比如删除XXX
}else if (object instanceof String) {
requestBody = (String) object;//有些接口直接把参数转换成对象了
}else {
requestBody = JSONObject.toJSONString(object);
}
}
}
//只记录POST方法的日志
boolean isNeedSaveLog = false;
//此处不能用getAnnotationByType 是JAVA8的特性,因为注解能够重名,所以得到的是数组
RequestMapping annotation = method.getMethod().getAnnotation(RequestMapping.class);
for (RequestMethod requestMethod : annotation.method()) {
if (requestMethod==RequestMethod.POST) {
isNeedSaveLog = true;
}
}
JSONObject requestBodyJson = null;
try {
requestBodyJson = JSONObject.parseObject(requestBody);
} catch (Exception e) {
//do nothing 即POST请求没传body
}
HttpServletRequest request = RequestContextUtil.getRequestByCurrentContext();
String userName = RequestContextUtil.getUserNameByCurrentContext();
if (StringUtil.isEmpty(userName)) {
try {
userName = DmsCache.get(requestBodyJson.getString("userName")).getName();
} catch (Exception e) {
userName = RequestContextUtil.getAsynUserInfoByAutoDeploy().getName();
}
}
//得到request的参数后让方法执行它
//注意around的情况下需要返回result 否则将不会返回值给请求者
Object result = joinPoint.proceed(objects);
try {
JSONObject resultJson = JSONObject.parseObject(result.toString());
if (isNeedSaveLog) {//如果是POST请求 则记录日志
LogTypeEnum logTypeEnum = LogTypeEnum.getDesByMethodName(methodName);
if (logTypeEnum != null) {
AuditLogEntity auditLogEntity = new AuditLogEntity();
auditLogEntity.setUuid(StringUtil.createRandomUuid());
auditLogEntity.setOperator(userName);
auditLogEntity.setRequestIp(request.getRemoteAddr());
auditLogEntity.setRequestUrl(request.getRequestURI().replace("/cloud-master", ""));
auditLogEntity.setEventType(logTypeEnum.getKey());
auditLogEntity.setEventDesc(logTypeEnum.getDescription());
auditLogEntity.setRequest(requestBody);
int isSuccess = "200".equals(resultJson.getString("code")) ? 1 : 0;
auditLogEntity.setSuccessFlag(isSuccess);
auditLogEntity.setResponse(result.toString());
auditLogEntity.setCreateTime(new Date());
auditLogDao.insert(auditLogEntity);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
}

第二步:在spring的xml中声明

<!-- 记录操作日志 -->
<bean id="operationLogAop" class="com.ming.learn.core.aop.LogAopHandler"/>
<aop:config>
<aop:aspect id="logAOP" ref="operationLogAop">
<aop:pointcut id="target" expression="execution(* com.ming.learn..*Controller.*(..))"/>
<aop:around method="doSaveLog" pointcut-ref="target"/>
</aop:aspect>
</aop:config>

如此一来,核心步骤就完成了,剩下的就是自己组装需要记录的东西了。

第三步:写Dao、Entity、Mapper

import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;
/**
* 日志审计
* @author Mingchenchen
*
*/
@Table(name="audit_log")
public class AuditLogEntity {
@Id
private String uuid;
@Column(name="event_type")
private String eventType;//事件类型
@Column(name="event_desc")
private String eventDesc;//事件中文描述
@Column(name="operator")
private String operator;//操作者
@Column(name="request_ip")
private String requestIp;//客户端地址
@Column(name="request_url")
private String requestUrl;//请求地址
@Column(name="request")
private String request;//请求body
@Column(name="response")
private String response;//请求返回值
@Column(name="create_time")
private Date createTime;
public String getUuid() {
return uuid;
}
public void setUuid(String uuid) {
this.uuid = uuid;
}
public String getEventType() {
return eventType;
}
public void setEventType(String eventType) {
this.eventType = eventType;
}
public String getEventDesc() {
return eventDesc;
}
public void setEventDesc(String eventDesc) {
this.eventDesc = eventDesc;
}
public String getOperator() {
return operator;
}
public void setOperator(String operator) {
this.operator = operator;
}
public String getRequestIp() {
return requestIp;
}
public void setRequestIp(String requestIp) {
this.requestIp = requestIp;
}
public String getRequestUrl() {
return requestUrl;
}
public void setRequestUrl(String requestUrl) {
this.requestUrl = requestUrl;
}
public String getRequest() {
return request;
}
public void setRequest(String request) {
this.request = request;
}
public String getResponse() {
return response;
}
public void setResponse(String response) {
this.response = response;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
}

第四步:根据Controller的方法名称定制响应的事件类型

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* 操作日志类型
* @author Mingchenchen
*
*/
public enum LogTypeEnum {
//用户
COMMON_LOGIN("login","login","登录");
//其他
private String methodName;//方法名称与controller一致
private String key;//保存到数据库的事件类型
private String description;//保存到数据库的描述
private LogTypeEnum(String methodName,String key,String description){
this.methodName = methodName;
this.key = key;
this.description = description;
}
public String getMethodName() {
return methodName;
}
public void setMethodName(String methodName) {
this.methodName = methodName;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
/**
* 根据方法名返回
* @param methodName
* @return
*/
public static LogTypeEnum getDesByMethodName(String methodName){
return innerMap.map.get(methodName);
}
/**
* 内部类 用户保存所有的enum 无须通过Enum.values()每次遍历
* @author Mingchenchen
*
*/
private static class innerMap{
private static Map<String, LogTypeEnum> map = new ConcurrentHashMap<>(128);
static{
//初始化整个枚举类到Map
for (LogTypeEnum logTypeEnum : LogTypeEnum.values()) {
map.put(logTypeEnum.getMethodName(), logTypeEnum);
}
}
}
}

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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标签:  java 日志记录
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