我有Spring Boot 2.3.1
- pom.xml
<?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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>logger</groupId>
<artifactId>logger</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>logger</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
<lombok.version>1.18.12</lombok.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.30</slf4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>logback-classic</artifactId>
<groupId>ch.qos.logback</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- 班级
@Slf4j
@SpringBootApplication
public class LoggerApplication {
public static void main(String[] args) {
log.info("++++++++++++++++++++++++TEST+++++++++++++++++++++++++++++");
SpringApplication.run(LoggerApplication.class, args);
}
}
- 应用程序属性
logging.config=classpath:log4j.properties
- log4j.properties
log4j.rootLogger=INFO, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.Target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.conversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p - %m%n
我试图找到解决方案，查看了论坛上的类似主题，尝试了各种排除依赖项的选项。
线程“主”java.lang.ClassCastException 中的异常：类 org.apache.logging.slf4j.SLF4JLoggerContext 无法转换为类 org.apache.logging.log4j.core.LoggerContext（org.apache.logging.slf4j.SLF4JLoggerContext 和 org .apache.logging.log4j.core.LoggerContext 位于加载程序“app”的未命名模块中）
我还尝试排除一些依赖项
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>logback-classic</artifactId>
<groupId>ch.qos.logback</groupId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>*</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
但是又报错了，但是现在不能格式化日志了。
2021-01-13 19:12:15,881 INFO - ++++++++++++++++++++++++TEST+++++++++++++++++++++++++++++ ERROR StatusLogger Unrecognized format specifier [d] ERROR StatusLogger Unrecognized conversion specifier [d] 从转换模式中的第 16 位开始。ERROR StatusLogger Unrecognized format specifier [thread] ERROR StatusLogger Unrecognized conversion specifier [thread] 从转换模式中的位置 25 开始。ERROR StatusLogger Unrecognized format specifier [level] ERROR StatusLogger Unrecognized conversion specifier [level] 从转换模式中的位置 35 开始。
...
ERROR StatusLogger Unrecognized format specifier [n] ERROR StatusLogger Unrecognized conversion specifier [n] 从转换模式中的位置 56 开始。警告：不支持 sun.reflect.Reflection.getCallerClass。这会影响性能。
任何人都可以对如何解决它有任何想法吗？