Personnel management system --第八天

日志处理的实现

记载用户操作的过程,用到了AspectJ的aop框架.比如说用户在执行了department模块下的add方法之后，我们要在日志中添加被执行的模块与方法，但又不能写在该方法中，所以使用切面化的方式处理，自动注入来实现。

1.实体类

public class Log {
    private Date operationTime;
    private String type;
    private String operator;
    private String module;
    private String operation;
    private String result;
    public Date getOperationTime() {
        return operationTime;
    }
    public void setOperationTime(Date operationTime) {
        this.operationTime = operationTime;
    }
    public String getType() {
        return type;
    }
    public void setType(String type) {
        this.type = type;
    }
    public String getOperator() {
        return operator;
    }
    public void setOperator(String operator) {
        this.operator = operator;
    }
    public String getModule() {
        return module;
    }
    public void setModule(String module) {
        this.module = module;
    }
    public String getOperation() {
        return operation;
    }
    public void setOperation(String operation) {
        this.operation = operation;
    }
    public String getResult() {
        return result;
    }
    public void setResult(String result) {
        this.result = result;
    }
}

持久层及其实现：一般与数据库交互就两种：要么插入日志，要么查询日志。

@Repository("logDao")
public interface LogDao {
    public void insert (Log log);
    public List<Log> selectByType(String type);
}

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.4//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="per.lc.sms.dao.LogDao">
    <resultMap id="resultMap" type="Log">
        <result property="operationTime" column="opr_time" javaType="Date"/>
        <result property="type" column="type" javaType="String"/>
        <result property="operator" column="operator" javaType="String"/>
        <result property="module" column="moudle" javaType="String"/>
        <result property="operation" column="operation" javaType="String"/>
        <result property="result" column="result" javaType="String"/>
    </resultMap>
    <insert id="insert">
        insert into log values(#{operationTime},#{type},#{operator},#{module},#{operation},#{result})
    </insert>
    <select id="selectByType" resultMap="resultMap">
        select * from log where type=#{type} order by opr_time desc  //按操作时间的倒序排列
    </select>
</mapper>

业务层及其实现：

public interface LogService {
    public void addSystemLog(Log log);
    public void addLoginLog(Log log);
    public void addOperationLog(Log log);

    public List<Log> systemLog();
    public List<Log> LoginLog();
    public List<Log> operationLog();

}

@Service("logService")
public class LogServiceImp implements LogService {
    @Autowired
    private LogDao logDao;
    public void addSystemLog(Log log) {
        log.setOperationTime(new Date()); //有些业务规则提前设置好
        log.setType("system");
        logDao.insert(log);
    }
    public void addLoginLog(Log log) {
        log.setOperationTime(new Date());
        log.setType("login");
        logDao.insert(log);
    }
    public void addOperationLog(Log log) {
        log.setOperationTime(new Date());
        log.setType("operation");
        logDao.insert(log);
    }
    public List<Log> systemLog() {

        return logDao.selectByType("system");
    }
    public List<Log> LoginLog() {
        return logDao.selectByType("login");
    }
    public List<Log> operationLog() {
        return logDao.selectByType("operation");
    }
}

控制层：接收从页面发来的请求，将各类日志从数据库中查询出来进行展示。也就是它只做了查询的工作，那插入的工作由另外的类来完成。

@Controller("logController")
public class LogController {
    @Autowired
    private LogService logService;

    public void operationLog(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<Log> logList=logService.operationLog();
        request.setAttribute("LOGLIST",logList);
        request.setAttribute("TYPE","操作");
        request.getRequestDispatcher("../log_list.jsp").forward(request,response);
    }
    public void loginLog(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<Log> logList=logService.LoginLog();
        request.setAttribute("LOGLIST",logList);
        request.setAttribute("TYPE","登录");
        request.getRequestDispatcher("../log_list.jsp").forward(request,response);
    }
    public void systemLog(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<Log> logList=logService.systemLog();
        request.setAttribute("LOGLIST",logList);
        request.setAttribute("TYPE","系统");
        request.getRequestDispatcher("../log_list.jsp").forward(request,response);
    }
}

日志的插入操作；

@Component
@Aspect

public class LogAdvice {
    @Autowired
    private LogService logService;
@AfterReturning("execution(* per.lc.sms.controller.*.*(..))&&!execution(* per.lc.sms.controller.selfController.*(..))&&!execution(* per.lc.sms.controller.*.to*(..))")
    public void operationLog(JoinPoint joinPoint){
        Log log=new Log();
        log.setModule(joinPoint.getTarget().getClass().getSimpleName());    // 获取目标类的类名
        log.setOperation(joinPoint.getSignature().getName());               //获取所执行的方法名
        HttpServletRequest request= (HttpServletRequest) joinPoint.getArgs()[0];//获取参数request？获取的就应该是HttpServletRequest类型的啊？怎么还要强制转换
        Staff staff= (Staff) request.getSession().getAttribute("staff");
        log.setOperator(staff.getAccount());
        log.setResult("正常");
        logService.addOperationLog(log);
    }
@AfterThrowing(throwing ="e",pointcut = "execution(* per.lc.sms.controller.*.*(..))&&!execution(* per.lc.sms.controller.selfController.*(..))")
    public void systemLog(JoinPoint joinPoint,Throwable e){
        Log log=new Log();
        log.setModule(joinPoint.getTarget().getClass().getSimpleName());
        log.setOperation(joinPoint.getSignature().getName());
        HttpServletRequest request= (HttpServletRequest) joinPoint.getArgs()[0];
        Staff staff= (Staff) request.getSession().getAttribute("staff");
        log.setOperator(staff.getAccount());
        log.setResult(e.getClass().getSimpleName());
        logService.addSystemLog(log);
    }
@AfterReturning("execution(* per.lc.sms.controller.selfController.login(..))")
    public void loginLog(JoinPoint joinPoint){
        Log log=new Log();
        log.setModule(joinPoint.getTarget().getClass().getSimpleName());
        log.setOperation(joinPoint.getSignature().getName());
        HttpServletRequest request= (HttpServletRequest) joinPoint.getArgs()[0];
        Staff staff= (Staff) request.getSession().getAttribute("staff");
        if (staff==null){
            log.setOperator(request.getParameter("account"));
            log.setResult("失败");
        }else{
            log.setOperator(staff.getAccount());
            log.setResult("成功");
        }
        logService.addLoginLog(log);
    }
    @Before("execution(* per.lc.sms.controller.selfController.logout(..))")
    public void logoutLog(JoinPoint joinPoint){
        Log log=new Log();
        log.setModule(joinPoint.getTarget().getClass().getSimpleName());
        log.setOperation(joinPoint.getSignature().getName());
        HttpServletRequest request= (HttpServletRequest) joinPoint.getArgs()[0];
        Staff staff= (Staff) request.getSession().getAttribute("staff");
        log.setOperator(staff.getAccount());
        log.setResult("成功");
        logService.addLoginLog(log);
    }
}

整个项目基本就算是完成了，学了这么久，第一次把一个项目完整的写完跑起来。加油！！