springboot+log4j2+dubbo使用案例，dubbo日志没有打印

悠悠 2021-11-13 23:26 622阅读 0赞

在整合使用springboot-log4j2和dubbo过程中，dubbo日志未能打印出来

*  log4j2使用的是springboot自带的日志包spring-boot-starter-log4j2（**这里面已包含了全套的log4j2的jar包**，包括log4j-api,log4j-core,log4j-slf4j-impl），[非springboot使用案例点这里][springboot]
 *  springboot 版本号 2.1.6.RELEASE
 *  dubbo版本号2.6.5
 *  dubbo-spring-boot-starter版本号0.2.1.RELEASE  
    pom配置如下:

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.ym.dubbo</groupId>
        <artifactId>dubbo-starter-021release</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.6.RELEASE</version>
        </parent>
    
    
        <dependencies>
            <dependency>
                <artifactId>guava</artifactId>
                <groupId>com.google.guava</groupId>
                <version>15.0</version>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-starter-logging</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-log4j2</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>2.12.0</version>
            </dependency>
    
            <dependency>
                <groupId>com.alibaba.boot</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>0.2.1.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.6.5</version>
            </dependency>
    
        </dependencies>
    
    
    </project>

*  异常的日志如下：

![在这里插入图片描述][20190801140628795.png]  
**上面面少了dubbo的日志。**

*  正常的日志如下：  
    ![在这里插入图片描述][20190801140701811.png]

经过排查依赖jar包，发现项目里面还存在log4j的jar包，需要排除掉，如下

<dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>2.12.0</version>
                <exclusions>
                    <exclusion>
                        <groupId>log4j</groupId>
                        <artifactId>log4j</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>

如果还有其他地方有，都需要排除掉

[springboot]: https://blog.csdn.net/v123411739/article/details/80232005
[20190801140628795.png]: /images/20211113/831fc3e661a54042b158cb4778b73ab4.png
[20190801140701811.png]: /images/20211113/7e20c8f05a62467dbe54a2487031486f.png