增加开发环境配置

common/pom.xml

@@ -12,6 +12,9 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.7</maven.compiler.source>
+        <maven.compiler.target>1.7</maven.compiler.target>
+        <maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion>
         <spring.version>4.1.7.RELEASE</spring.version>
         <mybatis.version>3.2.7</mybatis.version>
         <mybatis-spring.version>1.2.3</mybatis-spring.version>