引用jar包

<dependencies>

  <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->

//spring

<dependency>

    <groupId>org.springframework</groupId>

    <artifactId>spring-context</artifactId>

    <version>4.3.5.RELEASE</version>

</dependency>

  <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->

//spring-jdbc

<dependency>

    <groupId>org.springframework</groupId>

    <artifactId>spring-jdbc</artifactId>

    <version>4.3.5.RELEASE</version>

</dependency>

//  ---------------mysql

<dependency>

    <groupId>mysql</groupId>

    <artifactId>mysql-connector-java</artifactId>

    <version>5.1.3</version>

</dependency>

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->

//---------------commons

<dependency>

    <groupId>org.apache.commons</groupId>

    <artifactId>commons-dbcp2</artifactId>

    <version>2.5.0</version>

</dependency>

<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->

<dependency>

    <groupId>com.mchange</groupId>

    <artifactId>c3p0</artifactId>

    <version>0.9.5.2</version>

</dependency>

  </dependencies>

  <build>

//-----------maven

    <plugins>

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-compiler-plugin</artifactId>

        <version>3.1</version>

        <configuration>

          <source>1.8</source>

          <target>1.8</target>

        </configuration>

      </plugin>

    </plugins>

  </build>