必须承认,对这些我都是一知半解。
依照网上操作,加入Log4j2,
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <!-- 移除框架中的logback依赖 --> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </exclusion> </exclusions> </dependency>
<!-- log4j2 1.3.x以上版本只支持log4j2 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-log4j2</artifactId> </dependency>
applications.yml文件中添加:
logging: config: classpath:log4j2.xml level: info
启动报错:
2019-08-08 11:08:23,798 restartedMain INFO Log4j appears to be running in a Servlet environment, but there's no log4j-web module available. If you want better web container support, please add the log4j-web JAR to your web archive or server lib directory.
把
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>2.11.2</version>
</dependency>
加到pom.xml文件中,问题解决!
再次启动,又报错:
[2019-08-08 11:24:43,152][ERROR][restartedMain] Application run failed (SpringApplication.java:821)
org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, java.lang.String>
原来是applications.yml配置错误,改为
logging: config: classpath:log4j2.xml level: root: info 问题解决!