修改动态数据源pom文件，增加lang3工具包

dynamic-datasource/pom.xml

@@ -31,6 +31,12 @@
 			<groupId>javax.servlet</groupId>
 			<artifactId>javax.servlet-api</artifactId>
 		</dependency>
-		
+
+      <dependency>
+          <groupId>org.apache.commons</groupId>
+          <artifactId>commons-lang3</artifactId>
+          <version>3.8.1</version>
+      </dependency>
+
   </dependencies>
 </project>