Intellij項目搭建（二）------pom.xml配置

1. 添加Spring-core核心jar包，參考jar庫地址：https://mvnrepository.com/open-source/http-clients
   
   org.springframework
   spring-core
   4.2.5.RELEASE
   

2. 類似配置，添加如下
   
   org.springframework
   spring-context
   4.2.5.RELEASE
   

3. 配置統一版本號。下添加，<spring.version>4.2.6.RELEASE</spring.version>
   <hibernate.version>5.1.0.Final</hibernate.version>
   spring的jar包version值替換爲${spring.version},這樣可以統一版本升級。

4. 添加其他配置項
   
   org.springframework
   spring-webmvc
   ${spring.version}
   

   <dependency>
       <groupId>org.springframework.data</groupId>
       <artifactId>spring-data-jpa</artifactId>
       <version>1.10.1.RELEASE</version>
   </dependency>
   
   <dependency>
       <groupId>org.hibernate</groupId>
       <artifactId>hibernate-entitymanager</artifactId>
       <version>${hibernate.version}</version>
   </dependency>
   
   <dependency>
       <groupId>org.hibernate</groupId>
       <artifactId>hibernate-c3p0</artifactId>
       <version>${hibernate.version}</version>
   </dependency>
   
   <dependency>
       <groupId>com.mchange</groupId>
       <artifactId>c3p0</artifactId>
       <version>0.9.5.2</version>
   </dependency>
   
   <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>jstl</artifactId>
       <version>1.2</version>
   </dependency>
   
   <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
       <version>5.1.39</version>
   </dependency>