首先导入如下依赖:
pom.xml
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.21</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.19</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>3.0.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.4.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.4.0</version>
</dependency>
敲黑板:注意这里--------此处SSM整合MybatisPlus的时候必须要导入这个 依赖spring-jdbc(狗东西)【导入这个依赖的原因是MybatisPlus中的一些东西用到了spring-jdbc所以需要导入】,笔者springboot玩多了,想用SSM整合一下MybatisPlus的时候出现了好多问题就是因为此。
applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 扫描指定包下的注解 -->
<context:component-scan base-package="com.llq">
<!-- 不扫描指定的注解 -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<bean class="com.alibaba.druid.pool.DruidDataSource" id="dataSource">
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.driverClassName}"></property>
</bean>
<!-- 配置和mybatis的整合 -->
<bean id="sqlSessionFactory" class="com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean">
<!-- 指定mybatis 全局配置文件的位置 -->
<property name="mapperLocations" value="classpath:com/llq/dao/*.xml"/>
<property name="typeAliasesPackage" value="com.com.llq.pojo"></property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.baomidou.mybatisplus.samples.quickstart.mapper"/>
</bean>
</beans>
jdbc.properties:
jdbc.username = root
jdbc.password= 123
jdbc.url = jdbc:mysql:///carsys?serverTimezone=Asia/Shanghai
jdbc.driverClassName = com.mysql.cj.jdbc.Driver
springMvc.xml:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 包扫描器 -->
<context:component-scan base-package="com.llq"></context:component-scan>
<!-- 默认静态资源 -->
<mvc:default-servlet-handler/>
<!-- 开始注解配置 -->
<mvc:annotation-driven></mvc:annotation-driven>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
</bean>
<bean class="com.llq.config.SwaggerConfig" />
</beans>
在持久层接口的地方直接让接口去继承Mybatis-Plus的BaseMapper就行。其他的略,毕竟像我们这么聪明的必定可以搞出来其他的。
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.llq.pojo.SysCar;
public interface SysCarMapper extends BaseMapper<SysCar> {
//注意这里要填写泛型,就是你要访问数据库的表的实体
}