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。