ssm基本框架的整合
原创
一. 创建Maven工程，引入依赖，配置所需环境
依赖
- mybatis的依赖
- spring的依赖
- mybatis-spring整合所需的依赖
- spring mvc的依赖
<!--********** mybatis **********-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.9</version>
</dependency>
<dependency>
<groupId>org.mybatis.caches</groupId>
<artifactId>mybatis-ehcache</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.3.0</version>
</dependency> <!--********** spring **********-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.9.1</version>
</dependency> <!--********** mybatis-spring **********-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.7</version>
</dependency> <!--********** spring mvc **********-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.18</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>3.1.0.M1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.13.2.2</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.4</version>
</dependency> <!--********** junit **********-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
<scope>test</scope>
</dependency>
<!--********** mysql **********-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.28</version>
</dependency>
<!--********** druid **********-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.8</version>
</dependency>
<!--********** log **********-->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.3.0-alpha14</version>
</dependency> <!--********** mybatis逆向工程 **********-->
<build>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.4.1</version>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.4.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.8</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.28</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>webapp
- 向模块添加web框架支持
- 进入项目结构→模块→添加部署描述符→...src\main\webapp\WEB-INF\web.xml
- 在webapp中添加存放静态资源的文件夹static，在WEB-INF中添加存放html页面的文件夹templates
tomcat
- 点击编辑配置
- 添加tomcat本地服务器
- 在部署中添加当前项目的的展开型包，将应用程序上下文修改为“/”
- 设置重新部署+更新类和资源
二. 程序结构的规定
- src
- main
- java
- com.ssm
- controller
- service
- mapper
- interceptor
- pojo
- com.ssm
- resources
- com.ssm.mapper
- applicationContext-dao.xml
- applicationContext-service.xml
- spring-mvc-controller.xml
- mybatis-config.xml
- log4j.xml
- generatorConfig.xml
- jdbc.properties
- webapp
- static
- WEB-INF
- web.xml
- templates
- java
- test
- java
- main
三. mybatis实现逆向工程
创建mybatis核心配置文件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">
<configuration>
<properties resource="**jdbc.properties**"/>
<!-- pojo包的全地址 -->
<typeAliases>
<package name="**com.ssm.pojo**"/>
</typeAliases>
<!-- 设置连接数据库的环境 -->
<environments default="development">
<environment id="development">
<!-- type="JDBC"：使用原始的JDBC的方式管理事务 -->
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<!-- 引入映射文件，mapper包的全地址 -->
<mappers>
<package name="**com.maximilian.mapper**"/>
</mappers>
</configuration>创建逆向工程的配置文件generatorConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<context id="DB2Tables" targetRuntime="**MyBatis3**">
<!-- 数据库的连接信息 -->
<jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/**数据库名**?useSSL=false&useUnicode=ture&characterEncoding=utf8&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true"
userId="**用户名**"
password="**密码**">
</jdbcConnection>
<!-- javaBean的生成策略-->
<javaModelGenerator targetPackage="**pojo包的全类名**"
targetProject="**java文件夹的绝对路径**">
<property name="enableSubPackages" value="true"/>
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!-- SQL映射文件的生成策略 -->
<sqlMapGenerator targetPackage="**mapper包的全类名**"
targetProject="**resources文件夹的绝对路径**">
<property name="enableSubPackages" value="true"/>
</sqlMapGenerator>
<!-- Mapper接口的生成策略 -->
<javaClientGenerator targetPackage="**mapper包的全类名**"
targetProject="**java文件夹的绝对路径**"
type="XMLMAPPER">
<property name="enableSubPackages" value="true"/>
</javaClientGenerator>
<!-- 逆向分析的表 -->
<!-- tableName设置为*号，可以对应所有表，此时不写domainObjectName -->
<!-- domainObjectName属性指定生成出来的实体类的类名 -->
<table tableName="表名" domainObjectName="**pojo类名**"/>
</context>
</generatorConfiguration>通过逆向工程创建mapper、pojo、mapper
- 点击maven
- 点击插件
- 找到mybatis-generator中的mybatis-generator:generate并点击
四. 整合MyBatis与Spring
准备工作
- 针对数据表创建对应的service接口与实现类
- service接口实现类上添加注解@Service 、@Transactional
- 通过注解@Resource向service实现类注入mapper（实现类）对象
- 在覆盖重写的方法中调用mapper方法
dao（mapper）的配置——applicationConfig-dao.xml
- mapper包的扫描
<context:component-scan base-package="**com.ssm.mapper**"/>- 数据库连接池、数据库的连接
<context:property-placeholder location="classpath:**jdbc.properties**"/>
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>- SqlSessionFactory的创建与生成mapper接口的代理对象
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- pojo的别名映射扫描，在value后面填写pojo包的全类名 -->
<property name="typeAliasesPackage" value="**pojo包的全类名**"/>
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 扫描mapper接口，生成代理对象，生成的代理对象会储存在ioc容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="**mapper包的全类名**"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>service的配置——applicationConfig-service.xml
- service包扫描
<context:component-scan base-package="**com.ssm.service**"/>- 事务管理、事物注解驱动
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>这两个xml文件的bean标签中需要：
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"
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
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"五. 在test中测试service方法
- 创建测试类
- 在类上添加基于Spring的JUnit测试注解
@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:/applicationContext-service.xml"})
- 添加测试属性，有接口的就一定要使用接口注入
- 测试方法
六. 整合Spring MVC
在spring-mvc-controller.xml配置
- 扫描cotroller（如果有拦截器也要扫描拦截器的所在包）
<context:component-scan base-package="**com.ssm.controller**"/>- 配置thymeleaf视图解析器
<bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
<!-- 视图解析器的优先级 -->
<property name="order" value="1"/>
<property name="characterEncoding" value="UTF-8"/>
<property name="templateEngine">
<bean class="org.thymeleaf.spring5.SpringTemplateEngine">
<property name="templateResolver">
<bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
<!-- 视图前缀 -->
<property name="prefix" value="/WEB-INF/**templates**/"/>
<!-- 视图后缀 -->
<property name="suffix" value=".html"/>
<property name="templateMode" value="HTML5"/>
<property name="characterEncoding" value="UTF-8"/>
</bean>
</property>
</bean>
</property>
</bean>- 开启mvc注解驱动
<mvc:annotation-driven>
<mvc:message-converters>
<!-- 处理响应中文内容乱码 -->
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="defaultCharset" value="UTF-8"/>
<property name="supportedMediaTypes">
<list>
<value>text/html</value>
<value>application/json</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>- 设置视图跳转控制器（点击即跳转，中间不能有任何的逻辑）
<mvc:view-controller path="**请求体**" view-name="**页面名称**"/>- 开放对静态资源的访问
<mvc:default-servlet-handler/>- 可选：文件上传下载的文件解析器
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>- 可选：拦截器
<mvc:interceptors>
<mvc:interceptor>
<!-- 期待被拦截的请求 -->
<mvc:mapping path="**/****"/>
<!-- 不期待被拦截的请求 -->
<mvc:exclude-mapping path="**/**"/>
<ref bean="**拦截器类注解中的value**"/>
</mvc:interceptor>
</mvc:interceptors>在web.xml中整合spring与spring mvc
- 过滤器1：编码
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>- 过滤器2：隐藏的http请求方法
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>- 启动spring框架
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:**applicationContext*.xml**</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>- 配置spring mvc的前端控制器dispatcher servlet，对浏览器发送的请求进行处理
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 通过初始化参数指定SpringMVC配置文件的位置和名称 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:**spring-mvc-controller.xml**</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
原创声明：本文系作者授权腾讯云开发者社区发表，未经许可，不得转载。
如有侵权，请联系 cloudcommunity@tencent.com 删除。
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