SSM框架整合

原创 于 2025-01-20 10:55:12 发布
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文章标签：

#mybatis #java #sql

SSM框架整合

在早期的项目中，一般都是使用ssm项目做开发的，虽然现在的主流开发是springboot来做开发，但是ssm的基本整合还是需要掌握的。

整合SSM框架要做哪些事情：

  • SpringMVC: pom

        1.web.xml

                a.前端调度器servlet

                b.编码过滤器filter

                c.支持rest的过滤器

        2.springmvc.xml

                a.扫描controller包

                b.添加<annotation-driver>

                c.视图解析器

                d.静态资源解析

        3.添加控制器类...

  • Spring:
  1. web.xml

                a.监听器（在启动web容器时加载）

      2.spring.xml

                a.扫描所有除了controller包的其他包

                b.声明式事

  • MyBatis

​​​​​​​

  1. 需要和spring整合

              a.将sqlSessionFactory 配置为spring的bean

                      数据源 配置为spring的bean

                      全局配置文件

                      所有mapper映射文件

               b.将mapper接口的包交给spring

      2.加入全局配置文件

1、导入pom文件 

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>



    <groupId>cn.tulingxueyuan</groupId>

    <artifactId>ssm</artifactId>

    <version>1.0-SNAPSHOT</version>



    <properties>

        <SPRING.VERSION>5.2.6.RELEASE</SPRING.VERSION>

        <ASPECTJWEAVER.VERSION>1.9.5</ASPECTJWEAVER.VERSION>

    </properties>



    <dependencies>

        <!--springmvc-->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${SPRING.VERSION}</version>

        </dependency>

        <!--spring-->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aop</artifactId>

            <version>${SPRING.VERSION}</version>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjweaver</artifactId>

            <version>${ASPECTJWEAVER.VERSION}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aspects</artifactId>

            <version>${SPRING.VERSION}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-orm</artifactId>

            <version>${SPRING.VERSION}</version>

        </dependency>



        <!--spring-mybatis 适配器-->

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis-spring</artifactId>

            <version>2.0.5</version>

        </dependency>





        <!--mybatis核心依赖-->

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis</artifactId>

            <version>3.5.5</version>

        </dependency>

        <!--连接池-->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>druid</artifactId>

            <version>1.1.21</version>

        </dependency>

        <!--mysql 对应版本的连接器驱动-->

        <dependency>

            <groupId>mysql</groupId>

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

            <version>5.1.47</version>

        </dependency>

        <!-- log start -->

        <dependency>

            <groupId>org.slf4j</groupId>

            <artifactId>slf4j-api</artifactId>

            <version>1.7.30</version>

        </dependency>





        <dependency>

            <groupId>ch.qos.logback</groupId>

            <artifactId>logback-classic</artifactId>

            <version>1.2.3</version>

        </dependency>

        <!-- log end -->





        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->

        <dependency>

            <groupId>com.fasterxml.jackson.core</groupId>

            <artifactId>jackson-core</artifactId>

            <version>2.10.3</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

        <dependency>

            <groupId>com.fasterxml.jackson.core</groupId>

            <artifactId>jackson-databind</artifactId>

            <version>2.10.3</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->

        <dependency>

            <groupId>com.fasterxml.jackson.core</groupId>

            <artifactId>jackson-annotations</artifactId>

            <version>2.10.3</version>

        </dependency>



        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.12</version>

            <scope>test</scope>

        </dependency>

    </dependencies>



</project>

2、编写各个框架的配置文件

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

         version="3.1">





    <!--spring 基于web应用的启动-->

    <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>

    <!--全局参数：spring配置文件-->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:spring-core.xml</param-value>

    </context-param>





    

    <!--前端调度器servlet-->

    <servlet>

        <servlet-name>dispatcherServlet</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <!--设置配置文件的路径-->

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:spring-mvc.xml</param-value>

        </init-param>

        <!--设置启动即加载-->

        <load-on-startup>1</load-on-startup>

    </servlet>

    <servlet-mapping>

        <servlet-name>dispatcherServlet</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>



    <!--编码过滤器filter-->

    <filter>

        <filter-name>characterEncoding</filter-name>

        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

        <!--设置编码格式-->

        <init-param>

            <param-name>encoding</param-name>

            <param-value>UTF-8</param-value>

        </init-param>

        <!---->

        <init-param>

            <param-name>forceEncoding</param-name>

            <param-value>true</param-value>

        </init-param>

    </filter>

    <filter-mapping>

        <filter-name>characterEncoding</filter-name>

        <servlet-name>dispatcherServlet</servlet-name>

    </filter-mapping>



    <!--支持rest的过滤器-->

    <filter>

        <filter-name>hiddenHttpMethod</filter-name>

        <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

    </filter>

    <filter-mapping>

        <filter-name>hiddenHttpMethod</filter-name>

        <servlet-name>dispatcherServlet</servlet-name>

    </filter-mapping>



</web-app>

springmvc.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"

       xmlns:mvc="http://www.springframework.org/schema/mvc"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">



    <!--springmvc只扫描控制器-->

    <context:component-scan base-package="cn.tulingxueyuan" use-default-filters="false">

        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

    <!--静态资源的扫描-->

    <mvc:default-servlet-handler></mvc:default-servlet-handler>

    <!--动态资源的扫描-->

    <mvc:annotation-driven></mvc:annotation-driven>

    <!--配置视图管理器-->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/page/"></property>

        <property name="suffix" value=".jsp"></property>

    </bean>

</beans>

spring-core.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" xmlns:tx="http://www.springframework.org/schema/tx"

       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">



    <!--扫描所有除了controller包的其他包-->

    <context:component-scan base-package="cn.tulingxueyuan">

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>





    <!--引入外部属性资源文件-->

    <context:property-placeholder location="classpath:db.properties"></context:property-placeholder>



    <!--创建Druid数据源-->

    <bean class="com.alibaba.druid.pool.DruidDataSource" id="dataSource">

        <property name="username" value="${mysql.username}"></property>

        <property name="password" value="${mysql.password}"></property>

        <property name="url"  value="${mysql.url}"></property>

        <property name="driverClassName" value="${mysql.driverClassName}"></property>

    </bean>



    <!--声明式事-->

    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">

        <property name="dataSource" ref="dataSource"></property>

    </bean>



    <!--基于驱动-->

    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>





    <!--用于声明事务切入的所有方法-->

    <aop:config>

        <aop:pointcut id="transactionCut" expression="execution(* cn.tulingxueyuan.service.impl.*.*(..))"/>

    </aop:config>



    <!--用来明确切点匹配到的方法哪些方法需要使用事务-->

    <tx:advice id="advice" transaction-manager="transactionManager">

        <tx:attributes>

            <!--可以使用通配符-->

            <tx:method name="add*"/>

            <tx:method name="update*"/>

            <tx:method name="delete*"/>

            <tx:method name="get*" read-only="true" propagation="SUPPORTS"></tx:method>

            <tx:method name="query*" read-only="true"></tx:method>

        </tx:attributes>

    </tx:advice>



    <!--SqlSessionFactory-->

    <bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory">

        <!-- 指定spring中的数据源 -->

        <property name="dataSource" ref="dataSource"></property>

        <property name="configLocation" value="classpath:mybatis-config.xml"></property>

        <property name="mapperLocations" value="classpath:cn/tulingxueyuan/mapper/*.xml"></property>

    </bean>



    <!--将mapper接口交给spring管理-->

    <mybatis:scan base-package="cn.tulingxueyuan.mapper"></mybatis:scan>



</beans>

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE configuration

        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

        "http://mybatis.org/dtd/mybatis-3-config.dtd">

<!--就是DOCTYPE后面对应的根节点-->

<configuration>





    <!--mybatis的设置选项  可以改变mybatis运行时行为-->

    <settings>

        <setting name="mapUnderscoreToCamelCase" value="true"/>

    </settings>



    <!--类型别名可为 Java 类型设置一个缩写名字。 它仅用于 XML 配置，意在降低冗余的全限定类名书写-->

    <typeAliases>

        <package name="cn.tulingxueyuan.pojo"/>

    </typeAliases>



</configuration>

db.properties

mysql.username = root

mysql.password=123456

mysql.url=jdbc:mysql://localhost:3306/mybatis

mysql.driverClassName=com.mysql.jdbc.Driver

生成 pojo\mapper接口\mapper映射文件

TestController.java

@RestController

public class EmpController {





    @Autowired

    IEmpService empService;



    @RequestMapping("test")

    public  List<Emp> test(){

        List<Emp> emps = empService.selectEmp();

        return emps;

    }

}

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