<?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>
        <!--寫application.yml時會有提示，即當我輸入custom時，會提示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>

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 {
}

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統一攔截
 * @author ming
 */
@Slf4j
@Aspect
public class CustomLogAspect {
    private CustomLogProperties customLogProperties;
    /**
     * 當一個bean沒有無參構造器時，spring創(chuàng)建bean時，對于構造器參數會從容器中取，
     * 這里其實是省略了@Autowired，該注解可以用在方法參數上
     * @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();
        //獲取方法名稱
        Signature sig = joinPoint.getSignature();
        MethodSignature mSig = (MethodSignature)sig;
        Method method = mSig.getMethod();
        String methodName = method.getName();
        Object obj = joinPoint.proceed();
        log.error("服務名:{}",serviceName);
        log.error("方法名:{}",methodName);
        log.error("方法參數:{}",Arrays.toString(joinPoint.getArgs()));
        log.error("方法返回值:{}",obj.toString());
        return obj;
    }
}

package com.ming.log.module.config;
import org.springframework.boot.context.properties.ConfigurationProperties;
import javax.annotation.PostConstruct;
//讓配置文件中的屬性根據前綴來注入對應的屬性
@ConfigurationProperties(value ="custom.log")
public class CustomLogProperties {
    //日志服務名,會自動找配置文件中customLog.serviceName
    private String serviceName;
    public String getServiceName() {
        return serviceName;
    }
    public void setServiceName(String serviceName) {
        this.serviceName = serviceName;
    }
}

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
//將CustomLogProperties注入Spring容器
@EnableConfigurationProperties(CustomLogProperties.class)
public class CustomLogAutoConfiguration {
    @Bean
    public CustomLogAspect customLogAspect(CustomLogProperties customLogProperties){
        return new CustomLogAspect(customLogProperties);
    }
}