添加依賴到pom.xml

<!--1.Spring大模塊--><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-beans</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-context</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-core</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-tx</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-jdbc</artifactId>    <version>5.1.9.RELEASE</version></dependency><!--2.SpringMVC大模塊--><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-web</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-webmvc</artifactId>    <version>5.1.9.RELEASE</version></dependency><dependency>    <groupId>com.fasterxml.jackson.core</groupId>    <artifactId>jackson-databind</artifactId>    <version>2.9.9.3</version></dependency><dependency>    <groupId>com.fasterxml.jackson.core</groupId>    <artifactId>jackson-core</artifactId>    <version>2.9.9</version></dependency><dependency>    <groupId>com.fasterxml.jackson.core</groupId>    <artifactId>jackson-annotations</artifactId>    <version>2.9.9</version></dependency><!--Mybatis--><!--jsp用的JSTL--><dependency>    <groupId>javax.servlet</groupId>    <artifactId>jstl</artifactId>    <version>1.2</version></dependency><!--MySQL 使用最新版本8.0，請注意JDBC_URL發生改變--><dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>    <version>8.0.17</version></dependency><!--c3p0,dbcp,druid 數據鏈接池--><dependency>    <groupId>com.mchange</groupId>    <artifactId>c3p0</artifactId>    <version>0.9.5.4</version></dependency>