背景

SLF4J越來越流行，介面也比JCL好用，如何在基於Spring的應用中使用SLF4J而不是JCL。

排除spring對JCL的依賴

<dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-context</artifactId>
	<version>${spring.version}</version>
	<exclusions>
		<exclusion>
			<artifactId>commons-logging</artifactId>
			<groupId>commons-logging</groupId>
		</exclusion>
	</exclusions>
</dependency>
 

新增SLF4J和SLF-log4j依賴

<dependency>
	<groupId>org.slf4j</groupId>
	<artifactId>slf4j-api</artifactId>
	<version>${slf4j.version}</version>
</dependency>
<dependency>
	<groupId>org.slf4j</groupId>
	<artifactId>jcl-over-slf4j</artifactId>
	<version>${slf4j.version}</version>
</dependency>
<dependency>
	<groupId>org.slf4j</groupId>
	<artifactId>slf4j-log4j12</artifactId>
	<version>${slf4j.version}</version>
</dependency>