1. 添加依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
2. 编写自定义注解类
package com.atguigu.springcloud.interfacePackage; import java.lang.annotation.*; @Target({ ElementType.METHOD, ElementType.TYPE }) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface MyLog { String value(); }
3. 编写注解类切面
package com.atguigu.springcloud.aop;
import com.atguigu.springcloud.interfacePackage.MyLog;
import com.atguigu.springcloud.log.InterFaceLog;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
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.lang.reflect.Method;
import java.util.Arrays;
@Aspect
@Component
public class WebLogAspect {
ThreadLocal<Long> startTime = new ThreadLocal<>();
ThreadLocal<InterFaceLog> log = new ThreadLocal<>();
InterFaceLog interfaceLog = new InterFaceLog();
@Pointcut("@annotation(com.atguigu.springcloud.interfacePackage.MyLog)")
public void annotationPointCut(){}
@Before("annotationPointCut()")
public void doBefore(JoinPoint joinPoint) throws Throwable {
// 接收到请求,记录请求内容
startTime.set(System.currentTimeMillis());
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
String url = request.getRequestURL().toString();
String method = request.getMethod();
String remoteAddr = request.getRemoteAddr();
String class_method = joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName();
String param = Arrays.toString(joinPoint.getArgs());
log.set(interfaceLog);
MethodSignature sign = (MethodSignature)joinPoint.getSignature();
Method method2 = sign.getMethod();
MyLog annotation = method2.getAnnotation(MyLog.class);
System.out.print("打印:"+annotation.value()+" 前置日志");
}
@AfterReturning(returning = "ret", pointcut = "annotationPointCut()")
public void doAfterReturning(Object ret) throws Throwable {
String result = ret.toString();
InterFaceLog logAfter = log.get();
Long time = System.currentTimeMillis() - startTime.get();
System.out.println(logAfter);
}
}
4、在启动类中添加对aspect的支持
@EnableAspectJAutoProxy//没有用到
5、在controller层中使用注解
package com.atguigu.springcloud.controller;
import java.util.List;
import com.atguigu.springcloud.interfacePackage.MyLog;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.atguigu.springcloud.entities.Dept;
import com.atguigu.springcloud.service.DeptService;
@RestController
public class DeptController
{
@Autowired
private DeptService service;
@Autowired
private DiscoveryClient client;
@RequestMapping(value = "/dept/add", method = RequestMethod.POST)
public boolean add(@RequestBody Dept dept)
{
return service.add(dept);
}
@RequestMapping(value = "/dept/get/{id}", method = RequestMethod.GET)
public Dept get(@PathVariable("id") Long id)
{
return service.get(id);
}
@MyLog("测试")
@RequestMapping(value = "/dept/list", method = RequestMethod.GET)
public List<Dept> list()
{
return service.list();
}
@RequestMapping(value = "/dept/discovery", method = RequestMethod.GET)
public Object discovery()
{
/**获取eureka里面的服务*/
List<String> list = client.getServices();
System.out.println("**********" + list);
List<ServiceInstance> srvList = client.getInstances("MICROSERVICECLOUD-DEPT");
for (ServiceInstance element : srvList) {
System.out.println(element.getServiceId() + "\t" + element.getHost() + "\t" + element.getPort() + "\t"
+ element.getUri());
}
return this.client;
}
}