minor update

Author: linux-china

pom.xml

@@ -15,6 +15,8 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <start-class>org.mvnsearch.ThymeLeafDemoApplication</start-class>
         <java.version>1.8</java.version>
+        <spring.version>4.2.3.RELEASE</spring.version>
+        <spring-boot.version>1.3.0.RELEASE</spring-boot.version>
     </properties>
 
     <dependencies>
@@ -50,14 +52,14 @@
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-framework-bom</artifactId>
-                <version>4.2.3.RELEASE</version>
+                <version>${spring.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
             <dependency>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
-                <version>1.3.0.RELEASE</version>
+                <version>${spring-boot.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>