java如何實現一個切面(儲存日誌)
阿新 • • 發佈：2018-12-07
package com.cloudtech.web.aop; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.commons.lang3.StringUtils; import org.aspectj.lang.JoinPoint; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import com.cloudtech.web.dao.AdminMapper; import com.cloudtech.web.dao.AuthorityMapper; import com.cloudtech.web.dao.FieldConfigMapper; import com.cloudtech.web.dao.OperationDetailLogsMapper; import com.cloudtech.web.dao.OperationLogsMapper; import com.cloudtech.web.dao.OperatorMapper; import com.cloudtech.web.dao.RoleMapper; import com.cloudtech.web.dao.SystemConfigMapper; import com.cloudtech.web.entity.Admin; import com.cloudtech.web.entity.Authority; import com.cloudtech.web.entity.FieldConfig; import com.cloudtech.web.entity.OperationDetailLogs; import com.cloudtech.web.entity.OperationLogs; import com.cloudtech.web.entity.Operator; import com.cloudtech.web.entity.Role; import com.cloudtech.web.entity.SystemConfig; import com.cloudtech.web.enums.ChildModuleType; import com.cloudtech.web.enums.OperationType; import com.cloudtech.web.enums.ParentModuleType; import com.cloudtech.web.vo.FieldConfigVo; import com.cloudtech.web.vo.Principal; /** * * @ClassName: LogAspect * @Description: 日誌操作記錄 * @author wude * @date 2018年7月19日 * */ @Aspect @Component public class LogAspect { /** * @serial 日誌. */ private static final Logger LOGGER = LoggerFactory.getLogger(LogAspect.class); @Autowired private OperationLogsMapper logsMapper; @Autowired private OperationDetailLogsMapper detailLogsMapper; @Autowired private RoleMapper roleMapper; @Autowired private AuthorityMapper authorityMapper; @Autowired private OperatorMapper operatorMapper; @Autowired private AdminMapper adminMapper; @Autowired private SystemConfigMapper systemConfigMapper; @Autowired private FieldConfigMapper fieldConfigMapper; /** * 角色日誌修改和新增操作日誌記錄 * @param point * @throws Throwable */ @Around("execution(* com.cloudtech.web.service.impl.RoleServiceImpl.insertOrUpdate(..))") public Object processInsertRoleConfig(ProceedingJoinPoint point) throws Throwable { Object rvt = null; Role role = null; Principal principal = null; //新增 OperationType type = null; //操作型別 String title = ""; //標題 // 訪問目標方法的引數： Object[] args = point.getArgs(); // point.getArgs() 獲得執行引數 //父模組id Integer module = ParentModuleType.ADMIN_MANGGER.getCode(); //子模組id Integer subModule = ChildModuleType.ROLE_LIST.getCode(); if (args != null && args.length > 0) { role = (Role) args[0]; principal = (Principal) args[1]; type = (OperationType) args[2]; if(type == OperationType.ADD) { //新增 rvt = point.proceed(); LOGGER.debug("新增角色操作日誌記錄: " + role.toString()); if(role.getId() != null){ //插入日誌表 title = "角色資訊新增"; OperationLogs logs = insertLog(title, principal, type,module,subModule); //插入日誌詳情表-----角色名稱 insertRoleDetailLog(logs, null, role, 1, type); //插入日誌詳情表-----角色描述 insertRoleDetailLog(logs, null, role, 2, type); } } Role beforeRole = null; //修改之前的role if(type == OperationType.UPDATE) { //修改 beforeRole = roleMapper.selectByPrimaryKey(role.getId()); LOGGER.debug("修改角色操作日誌記錄: " + role.toString()); rvt = point.proceed(); boolean flag = false; boolean nameUpdate = false; //名字修改 boolean descUpdate = false; //描述 修改 if (!beforeRole.getName().equals(role.getName())) { flag = true; nameUpdate = true; } if (!beforeRole.getDescription().equals(role.getDescription())) { flag = true; descUpdate = true; } if(flag){ //修改過 title = "角色資訊修改"; OperationLogs logs = insertLog(title, principal, type,module,subModule); if(nameUpdate){ //名字修改 //插入日誌詳情表-----角色名稱 insertRoleDetailLog(logs, beforeRole, role, 1, type); } if(descUpdate){ //描述 修改 //插入日誌詳情表-----角色描述 insertRoleDetailLog(logs, beforeRole, role, 2, type); } } } } return rvt; } /** * 角色模組刪除操作日誌 * @param point * @return * @throws Throwable */ @Around("execution(* com.cloudtech.web.service.impl.RoleServiceImpl.delete(..))") public Object processDeleteRoleLog(ProceedingJoinPoint point) throws Throwable { Object[] args = point.getArgs(); Integer id = null; Principal principal = null; //新增 OperationType type = null; //操作型別 String title = ""; //標題 //父模組id Integer module = ParentModuleType.ADMIN_MANGGER.getCode(); //子模組id Integer subModule = ChildModuleType.ROLE_LIST.getCode(); if (args != null && args.length > 0) { id = (Integer) args[0]; principal = (Principal) args[1]; type = (OperationType) args[2]; LOGGER.debug("刪除角色操作日誌記錄: 角色id為" + id); //插入日誌表 title = "角色資訊刪除"; OperationLogs logs = insertLog(title, principal, type,module,subModule); Role beforeRole = roleMapper.selectByPrimaryKey(id); //角色名稱 insertRoleDetailLog(logs, beforeRole, null, 1, type); //角色描述 insertRoleDetailLog(logs, beforeRole, null, 2, type); } // 用改變後的引數執行目標方法 return point.proceed(args); } public static void main(String[] args) { String a="#123"; System.out.println(a.substring(1,a.length())); } }
@Around 環繞增強
注意:涉及到增加和修改操作，選用瞭解rvt = point.proceed();的用法。增加的時候，先設定這個的意思就是，先跑新增的方法，再判斷id是否有值，這樣才能確認新增成功勒，而，修改需要儲存到日誌中，需要對比修改前和修改後的物件，所以在先查詢後，再呼叫point.proceed()方法