failed to load class org.slf4j.impl.StaticLoggerBinder

話不多說，報錯信息如下：

SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

org.slf4j.impl.StaticLoggerBinder類無法加載到內存中。當在類路徑上找不到合適的SLF4J綁定時，就會發生這種情況。這裏引入相應的依賴即可。

		<dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>

詳細解答路徑：
http://www.slf4j.org/codes.html#StaticLoggerBinder
http://slf4j.org/manual.html#swapping