SpringBoot中通过AOP整合日志文件的实现

1.导入相关的依赖

<dependencies>
 
    <dependency>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter</artifactid>
        <exclusions> <!-- 去掉springboot自带的日志,不然会冲突 -->
            <exclusion>
                <groupid>org.springframework.boot</groupid>
                <artifactid>spring-boot-starter-logging</artifactid>
            </exclusion>
        </exclusions>
    </dependency>
 
    <dependency>
        <groupid>org.apache.logging.log4j</groupid>
        <artifactid>log4j-core</artifactid>
    </dependency>
    <!-- log4j-api -->
    <dependency>
        <groupid>org.apache.logging.log4j</groupid>
        <artifactid>log4j-api</artifactid>
    </dependency>
    <!-- log4j-slf4j-impl -->
    <dependency>
        <groupid>org.apache.logging.log4j</groupid>
        <artifactid>log4j-slf4j-impl</artifactid>
    </dependency>
    <!-- slf4j-api -->
    <dependency>
        <groupid>org.slf4j</groupid>
        <artifactid>slf4j-api</artifactid>
    </dependency>
    <!-- slf4j-simple 解决冲突-->
    <!--<dependency>-->
        <!--<groupid>org.slf4j</groupid>-->
        <!--<artifactid>slf4j-simple</artifactid>-->
    <!--</dependency>-->
 
    <dependency>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-aop</artifactid>
    </dependency>
 
    <dependency>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-web</artifactid>
    </dependency>
 
    <dependency>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-test</artifactid>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupid>log4j</groupid>
        <artifactid>log4j</artifactid>
        <version>1.2.12</version>
    </dependency>
</dependencies>

2.log4j2 日志文件

<?xml version="1.0" encoding="utf-8"?>
<!--日志级别以及优先级排序: off > fatal > error > warn > info > debug > trace > all -->
<!--configuration 后面的 status 用于设置 log4j2 自身内部的信息输出，可以不设置，当设置成 trace 时，可以看到 log4j2 内部各种详细输出-->
<configuration status="info">
    <!--先定义所有的 appender-->
    <appenders>
        <!--输出日志信息到控制台-->
        <console name="console" target="system_out">
            <!--控制日志输出的格式-->
            <patternlayout pattern="%d{yyyy-mm-dd hh:mm:ss.sss} [%t] %-5level %logger{36} - %msg%n"/>
        </console>
    </appenders>
    <!--然后定义 logger，只有定义 logger 并引入的 appender，appender 才会生效-->
    <!--root：用于指定项目的根日志，如果没有单独指定 logger，则会使用 root 作为默认的日志输出-->
    <loggers>
        <root level="info">
            <appender-ref ref="console"/>
        </root>
    </loggers>
</configuration>

3.dao层的接口以及实现类

文件路径：com.dzj.dao.userdao.java

package com.dzj.dao;
 
public interface userdao {
 
    void add();
 
    void update();
 
    void delete();
 
    void query();
}

文件路径：com.dzj.dao.userdaoimpl.java

package com.dzj.dao;
 
import org.springframework.stereotype.service;
 
@service
public class userdaoimpl implements userdao {
    @override
    public void add() {
        system.out.println("执行了添加方法...");
    }
 
    @override
    public void update() {
 
        system.out.println("执行了修改方法...");
    }
 
    @override
    public void delete() {
 
        system.out.println("执行了删除方法...");
    }
 
    @override
    public void query() {
 
        system.out.println("执行了查找方法...");
    }
}

4.service层业务实现类

文件路径：com.dzj.service.userservice.java

package com.dzj.service;
 
import com.dzj.dao.userdaoimpl;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.service;
 
@service
public class userservice {
 
    @autowired
    userdaoimpl userdao;
 
    public void add(){
        userdao.add();
    }
    public void update(){
        userdao.update();
    }
    public void delete(){
        userdao.delete();
    }
    public void query(){
        userdao.query();
    }
}

5.controller层接口控制类

文件路径：com.dzj.controller.usercontroller.java

package com.dzj.controller;
 
import com.dzj.service.userservice;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.responsebody;
 
@controller
@responsebody
public class usercontroller {
 
    @autowired
    userservice userservice;
 
    @requestmapping("/test")
    public string usertest(){
 
        userservice.add();
        return "chenggongle...";
    }
}

6.编写业务类增强类，加入一个日志文件记录

package com.dzj.advice;
 
import org.aspectj.lang.joinpoint;
import org.aspectj.lang.annotation.after;
import org.aspectj.lang.annotation.aspect;
import org.aspectj.lang.annotation.before;
import org.aspectj.lang.annotation.pointcut;
import org.slf4j.logger;
import org.slf4j.loggerfactory;
import org.springframework.stereotype.component;
import org.springframework.web.context.request.requestattributes;
import org.springframework.web.context.request.requestcontextholder;
import org.springframework.web.context.request.servletrequestattributes;
 
import javax.servlet.http.httpservletrequest;
import java.util.arrays;
 
@component
@aspect
public class advicemethod {
 
    private static final logger log = loggerfactory.getlogger(advicemethod.class);
 
    @pointcut("execution(public * com.dzj.service.userservice.*(..))")
    public void weblog(){}
 
    @before("weblog()")
    public void before(joinpoint joinpoint){
 
        //这个requestcontextholder是springmvc提供来获得请求的东西
        requestattributes requestattributes = requestcontextholder.getrequestattributes();
        httpservletrequest request = ((servletrequestattributes)requestattributes).getrequest();
 
        // 记录下请求内容
        log.info("################url : " + request.getrequesturl().tostring());//获取请求的地址
        log.info("################http_method : " + request.getmethod());//获取请求的方法
        log.info("################ip : " + request.getremoteaddr());
        log.info("################the args of the controller : " + arrays.tostring(joinpoint.getargs()));
 
        /**
         * getsignature().getdeclaringtypename()   是获取包+类名的
         * joinpoint.getsignature.getname()  获取了方法名
         * joinpoint.gettarget() 返回的是需要加强的目标类的对象
         * joinpoint.getthis())  返回的是经过加强后的代理类的对象
         */
        log.info("################class_method : " + joinpoint.getsignature().getdeclaringtypename() + "." + joinpoint.getsignature().getname());
        log.info("################target: " + joinpoint.gettarget());
        log.info("################this: " + joinpoint.getthis());
        system.out.println("方法执行之前...");
    }
 
    @after("weblog()")
    public void after(){
        system.out.println("方法执行之后...");
    }
}

7.运行测试，查看结果

启动主启动器类，在浏览器中输入http://localhost:8080/test，查看控制台输出信息

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