添加打包，日志分级输出

Author: hellokaton

pom.xml

@@ -16,12 +16,12 @@
 
     <dependencies>
         <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
-         <dependency>
-	    <groupId>org.slf4j</groupId>
-	    <artifactId>slf4j-log4j12</artifactId>
-	    <version>1.7.12</version>
-	    <scope>test</scope>
-	   </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
@@ -67,8 +67,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.2</version>
                 <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <encoding>UTF8</encoding>
                 </configuration>
             </plugin>