如何自定义springboot-starter日志组件供各个服务使用(系统日志优化)
作者:想寄给你一封情书
文章介绍了如何将各个微服务的接口调用日志逻辑优化为一个可共享的Spring Boot Starter,通过自定义注解和自动装配机制实现,本文给大家介绍的非常详细,感兴趣的朋友跟随小编一起看看吧
在优化项目时发现各个微服务都有各自的接口调用日志逻辑,比如每个服务都定义一个aop类拦截,十分冗余,其实是可以做成starter被各个服务引用使用,前提要先了解一下springboot自动装配原理
创建springboot工程,如果是jdk8,下面的地址换成阿里的才能选
pom依赖
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.ming</groupId> <artifactId>log</artifactId> <version>0.0.1-SNAPSHOT</version> <name>customlog-spring-boot-starter</name> <description>customlog-spring-boot-starter</description> <properties> <java.version>1.8</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <spring-boot.version>2.6.13</spring-boot.version> <lombok.version>1.18.26</lombok.version> </properties> <dependencies> <!--aop--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <!--写application.yml时会有提示,即当我输入custom时,会提示custom.log.serviceName--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>${spring-boot.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF-8</encoding> </configuration> </plugin> </plugins> </build> </project>
项目结构很简单
注解
package com.ming.log.module.annotation; import java.lang.annotation.*; /** * 日志注解 * @author ming */ @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) @Documented public @interface CustomLogAnnotation { }
切面逻辑
package com.ming.log.module.aop; import com.ming.log.module.config.CustomLogProperties; import lombok.extern.slf4j.Slf4j; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.Signature; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.reflect.MethodSignature; import java.lang.reflect.Method; import java.util.Arrays; /** * aop统一拦截 * @author ming */ @Slf4j @Aspect public class CustomLogAspect { private CustomLogProperties customLogProperties; /** * 当一个bean没有无参构造器时,spring创建bean时,对于构造器参数会从容器中取, * 这里其实是省略了@Autowired,该注解可以用在方法参数上 * @param customLogProperties */ public CustomLogAspect(CustomLogProperties customLogProperties) { this.customLogProperties = customLogProperties; } @Around("@annotation(com.ming.log.module.annotation.CustomLogAnnotation)") public Object logInvoke(ProceedingJoinPoint joinPoint) throws Throwable { String serviceName = customLogProperties.getServiceName(); //获取方法名称 Signature sig = joinPoint.getSignature(); MethodSignature mSig = (MethodSignature)sig; Method method = mSig.getMethod(); String methodName = method.getName(); Object obj = joinPoint.proceed(); log.error("服务名:{}",serviceName); log.error("方法名:{}",methodName); log.error("方法参数:{}",Arrays.toString(joinPoint.getArgs())); log.error("方法返回值:{}",obj.toString()); return obj; } }
熟悉配置类
package com.ming.log.module.config; import org.springframework.boot.context.properties.ConfigurationProperties; import javax.annotation.PostConstruct; //让配置文件中的属性根据前缀来注入对应的属性 @ConfigurationProperties(value ="custom.log") public class CustomLogProperties { //日志服务名,会自动找配置文件中customLog.serviceName private String serviceName; public String getServiceName() { return serviceName; } public void setServiceName(String serviceName) { this.serviceName = serviceName; } }
启用配置
package com.ming.log.module.config; import com.ming.log.module.aop.CustomLogAspect; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration //将CustomLogProperties注入Spring容器 @EnableConfigurationProperties(CustomLogProperties.class) public class CustomLogAutoConfiguration { @Bean public CustomLogAspect customLogAspect(CustomLogProperties customLogProperties){ return new CustomLogAspect(customLogProperties); } }
在resources下创建一个META-INF文件夹,然后在创建一个文件:spring.factories文件加入启用配置类的路径,springboot2.7之后有所不同,但是也兼容之前的版本写法
打包上传到maven私服(没搭建的直接install安装到本地maven仓库也可)
在别的工程引入,能这样看到基本就成功了
直接在方法上加@CustomLogAnnotation注解测试一下
到此为止已经成功,想做得好再好点的可以再把日志starter做成动态可插拔
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