在 Springmvc 开发中 slf4j-api 1.8+ 和 log4j2 2.14 版本如何绑定
NoKey · 2020-12-13 01:43:56 +08:00 · 1666 次点击这是一个创建于 1477 天前的主题，其中的信息可能已经有所发展或是发生改变。
今天搭建了一个 spring mvc 工程（不是 springboot ）
在 mvnrepository 找了 slf4j 和 log4j2 的包
把最新版本拿了下来
pom.xml 里面按照习惯这样写的
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>2.0.0-alpha1</version>
</dependency>
运行起来有提示
SLF4J: No SLF4J providers were found.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#noProviders for further details.
SLF4J: Class path contains SLF4J bindings targeting slf4j-api versions prior to 1.8.
SLF4J: Ignoring binding found at [jar:file:/Users/xxx/develop/code/myservice/target/myservice/WEB-INF/lib/log4j-slf4j-impl-2.14.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#ignoredBindings for an explanation.
然后，我根据提示的连接进去看了一下，有个说明
Planning for the advent of Jigsaw (Java 9), slf4j-api version 1.8.x and later use the ServiceLoader mechanism. Earlier versions of SLF4J relied on the static binder mechanism which is no longer honored by slf4j-api.
In case SLF4J finds no providers targeting SLF4J 1.8 but finds instead bindings targeting SLF4J 1.7 or earlier, it will list the bindings it finds but otherwise ignores them.
学艺不精。。。没搞懂我到底应该怎么做
请各位大佬赐教。。。谢谢。
2 条回复 • 2020-12-13 11:35:47 +08:00
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skydiver 2020-12-13 02:05:01 +08:00
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