切入業務日志

創建接口BizAnnotation.java

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)  
@Target({ElementType.METHOD})
public @interface BizAnnotation {

    //操作模塊
    String moduleName();  
    //操作
    String option(); 
    
}

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添加業務日志DAO接口bizLoggerDao，此處未貼代碼。

添加業務日志DAO接口bizLoggerDao實現類bizLoggerDaoImpl，此處未貼代碼。

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標記業務接口StudentService.java

import java.util.List;
import com.shenzhen.management.pojo.Student;
public interface StudentService {
public List<Student> getAllStudents();
@BizAnnotation(moduleName="Student Management",option="Add Student")
public void addStudent(Student student);
}

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添加業務接口StudentService.java實現類StudentServiceImpl.java，此處未貼代碼。

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創建業務日志類BizLogger.java

import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.reflect.MethodSignature;
import com.opensymphony.xwork2.ActionContext;
import com.shenzhen.management.dao.BizLoggerDao;
import com.shenzhen.management.service.BizAnnotation;

public class BizLogger {

private BizLoggerDao bizLoggerDao;

        public void log(JoinPoint joinPoint, Object returnObj) {
        
        //方法名
        String methodName = joinPoint.getSignature().getName();
        //參數
        Object[] parameters = joinPoint.getArgs();
        //返回值
        Object returnValue = returnObj;
        //獲取模塊，操作
        Method method = ((MethodSignature)joinPoint.getSignature()).getMethod();
        BizAnnotation bizAnnotation = method.getAnnotation(BizAnnotation.class);
        String moduleName = bizAnnotation.moduleName();
        String option = bizAnnotation.option();  
        //獲取用戶ID
        String userId = getUserId();
        //獲取用戶IP
        String ip = getIP();
        //執行插入
        bizLoggerDao.saveLog(選擇需要保存的數據作為參數);
    }
    
    public String getTime()
    {
    Date now = new Date(); 
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
    String time = dateFormat.format( now ); 
    return time;
    }
    
    public String getUserId()
    {
    Map session =  ActionContext.getContext().getSession(); 
    String userId = (String)session.get("userId");
    return userId;
    }
    
    public String getIP() { 
    
    HttpServletRequest request =  org.apache.struts2.ServletActionContext.getRequest();
    
        String ip = request.getHeader("x-forwarded-for"); 
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
            ip = request.getHeader("Proxy-Client-IP"); 
        } 
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
            ip = request.getHeader("WL-Proxy-Client-IP"); 
        } 
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
            ip = request.getRemoteAddr(); 
        } 
        return ip; 
    }


public BizLoggerDao getBizLoggerDao() {
return bizLoggerDao;
}


public void setBizLoggerDao(BizLoggerDao bizLoggerDao) {
this.bizLoggerDao = bizLoggerDao;
} 

}

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配置applicationContext.xml

    <bean id = "bizLoggerDao" class="com.shenzhen.management.dao.impl.BizLoggerDaoImpl">
      <property name="sqlSessionTemplate" ref="sqlSessionTemplate"></property>
    </bean>
    <bean id="bizLogger" class="com.shenzhen.management.util.log.BizLogger">
      <property name="bizLoggerDao" ref="bizLoggerDao" />
    </bean>
<aop:config>
 <aop:pointcut id="bizLogPointcut" expression="execution(* com.shenzhen.management.service.*.*(..))"/>
      <aop:aspect id="bizLogAspect" ref="bizLogger">
        <aop:after-returning method="log" returning="returnObj" pointcut-ref="bizLogPointcut"/>
      </aop:aspect>
    </aop:config>