添加commons-lang依赖

pom.xml

@@ -30,6 +30,7 @@
 		<batik.bridge.version>1.8</batik.bridge.version>
 		<xmlgraphics.version>2.1</xmlgraphics.version>
 		<mail.version>1.4.7</mail.version>
+		<commons.lang.version>2.6</commons.lang.version>
 	</properties>
 
 	<dependencies>
@@ -292,6 +293,12 @@
 				</exclusion>
 			</exclusions>
 		</dependency>
+
+		<dependency>
+			<groupId>commons-lang</groupId>
+			<artifactId>commons-lang</artifactId>
+			<version>${commons.lang.version}</version>
+		</dependency>
 	</dependencies>
 
 	<build>