SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".

该问题解决办法：

<dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.5.6</version>
            <type>jar</type>
        </dependency>

        <dependency>
            <groupId>slf4j-simple</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.5.2</version>
        </dependency>