【中软国际实训——Day13】

进一步完善项目

• 解决空属性赋值问题
• aspect日志

1. 空属性赋值问题

1. 新增工具类

• MyBeanUtils

package com.zr0726.news.util;import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;import java.beans.PropertyDescriptor;
import java.util.ArrayList;
import java.util.List;public class MyBeanUtils {public static String[] getNullPropertyName(Object source){BeanWrapper beanWrapper = new BeanWrapperImpl(source);PropertyDescriptor[] pds = beanWrapper.getPropertyDescriptors();List<String> nullPropertyName = new ArrayList<>();for (PropertyDescriptor pd:pds){String propertyName = pd.getName();if (beanWrapper.getPropertyValue(propertyName)==null){nullPropertyName.add(propertyName);}}return nullPropertyName.toArray(new String[nullPropertyName.size()] );}
}

2.aspect日志

1. 新建aspect包

• LogAspect

package com.zr0726.news.aspect;import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;@Aspect
@Component
public class LogAspect {private final Logger logger = LoggerFactory.getLogger(this.getClass());@Pointcut("execution(* com.zr0726.news.web.*.*(..))")public void log(){}@Before("log()")public void doBefore(JoinPoint joinPoint){//获取requestServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();HttpServletRequest request = attributes.getRequest();//获得url和ipString url = request.getRequestURL().toString();String ip = request.getRemoteAddr();String classMethod = joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName();Object[] args = joinPoint.getArgs();RequestLog requestLog = new RequestLog(url,ip,classMethod,args);logger.info("Request : {}",requestLog);logger.info("--------doBefore--------");}@After("log()")public void doAfter(){logger.info("--------doAfter--------");}@AfterReturning(returning = "result",pointcut = "log()")public void adAfterReturn(Object result){logger.info("Result : {}",result);}private class RequestLog{private String url;private String ip;private String classMethod;private Object[] args;public RequestLog(String url, String ip, String classMethod, Object[] args) {this.url = url;this.ip = ip;this.classMethod = classMethod;this.args = args;}@Overridepublic String toString() {return "RequestLog{" +"url='" + url + '\'' +", ip='" + ip + '\'' +", classMethod='" + classMethod + '\'' +", args=" + Arrays.toString(args) +'}';}}
}

3.功能测试

• 日志打印