9. 都什么时候了，你还不会框架SSM整合
9 都什么时候了，你还不会整合SSM♂️♂️♂️
需求：
使用ssm框架完成对 account 表的增删改查操作。
最后，框架搭建完后，阿红手写了一个完整的CRUD的demo，请看第9章节···
步骤分析
- 准备数据库和表记录
- 创建web项目
- 编写mybatis在ssm环境中可以单独使用
- 编写spring在ssm环境中可以单独使用
- spring整合mybatis
- 编写springMVC在ssm环境中可以单独使用
- spring整合springMVC
1. 准备数据库和表记录
CREATE TABLE `account` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(32) DEFAULT NULL,
`money` double DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;
insert into `account`(`id`,`name`,`money`) values (1,'tom',1000),
(2,'jerry',1000);
2. 创建web项目
3.编写mybatis在ssm环境中可以单独使用
3.1 导入相关依赖
<packaging>war</packaging>
<dependencies>
<!-- 数据库连接驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<!-- 配置数据库连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.15</version>
</dependency>
<!-- mybatis依赖-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.4</version>
</dependency>
<!-- junit依赖-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
3.2 创建Account实体
public class Account {
private Integer id;
private String name;
private String money;
//省略get和set方法
}
3.3 创建AccountDao接口
/**
* 查询所有信息
* @return
*/
List<Account> findAll();
3.4 创建AccountDao.xml映射文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.weihong.dao.AccountDao">
<select id="findAll" resultType="Account">
select * from account
</select>
</mapper>
3.5 创建mybatis核心配置文件
jdbc.properties文件：
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/smd
jdbc.username=root
jdbc.password=root
SqlMapConfig.xml文件：
<?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>
<!-- 加载配置文件-->
<properties resource="jdbc.properties" />
<!-- 给实体重命名，方便在sql.xml配置简单-->
<typeAliases>
<package name="com.weihong.domain"/>
</typeAliases>
<!-- 配置数据量连接信息-->
<environments default="dev">
<environment id="dev">
<transactionManager type="JDBC"></transactionManager>
<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>
<!-- 加载映射文件-->
<mappers>
<package name="com.weihong.dao"/>
</mappers>
</configuration>
3.6 测试代码
public class MyTest {
@Test
public void findAccountInfo() throws IOException {
InputStream resourceAsStream = Resources.getResourceAsStream("sqlMapConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(resourceAsStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
AccountDao accountDao = sqlSession.getMapper(AccountDao.class);
List<Account> listAccount = accountDao.findAll();
for (Account account : listAccount) {
System.out.println(account);
}
// 释放资源
sqlSession.close();
}
}
3.7 测试结果
4. 编写spring在ssm环境中可以单独使用
4.1相关坐标
<!-- Spring依赖 start-->
<!-- spring版本-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.15.RELEASE</version>
</dependency>
<!-- spring切面-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.13</version>
</dependency>
<!-- spring-jdbc对jdbc进行封装 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.6.RELEASE</version>
</dependency>
<!-- spring-tx:提供事务的支持-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.2.15.RELEASE</version>
</dependency>
<!-- spring测试-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<!-- spring依赖结束 end-->
4.2 创建AccountService接口
public interface AccountService {
List<Account> findAccount();
}
4.3 创建AccountServiceImpl实现
@Service
public class AccountServiceImpl implements AccountService {
@Override
public List<Account> findAccount() {
System.out.println("执行了业务方法！");
return null;
}
}
4.4 创建spring核心配置文件
applicationContext.xml：
<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"
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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<context:component-scan base-package="com.weihong" />
beans>
4.5 测试代码
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class SpringTest {
@Autowired
private AccountService accountService;
@Test
public void test1(){
accountService.findAccount();
}
}
4.6 测试结果
5. spring整合mybatis
5.1 整合思想：
将mybatis接口代理对象的创建权交给spring管理，我们就可以把dao的代理对象注入到service中，此时也就完成了spring与mybatis的整合了。
也就是摒弃这几行代码，通过代理对象注入到service中。
5.2 导入整合包
<!--spring整合mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
5.3 spring配置文件管理mybatis
注意：此时可以将mybatis主配置文件删除。
<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"
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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<context:component-scan base-package="com.weihong" />
<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>
<bean id="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="typeAliasesPackage" value="com.weihong.domain" />
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.weihong.dao" />
bean>
beans>
5.4 修改AccountServiceImpl
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
@Override
public List<Account> findAccount() {
System.out.println("开始查询数据库信息！");
List<Account> list = accountDao.findAll();
return list;
}
}
5.5 运行结果
6. 配置springMVC在ssm环境中可以单独使用
访问到controller里面的方法查询所有账户，并跳转到list.jsp页面进行列表展示
6.1 导入相关依赖
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>5.1.5.RELEASEversion>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.1.0version>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>2.2version>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
6.2 导入页面资源
6.3 配置前端控制器DispathcerServlet
<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_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>DispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
<load-on-startup>2load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>DispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>utf-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>CharacterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<error-page>
<error-code>404error-code>
<location>/404.jsplocation>
error-page>
<error-page>
<error-code>500error-code>
<location>/500.jsplocation>
error-page>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
web-app>
6.4 AccountController和 list.jsp
@Controller
public class AccountController {
@RequestMapping("/findAll")
public String findAll(Model model){
Account account = new Account();
List<Account> list = new ArrayList<>();
account.setId(1);
account.setName("张三");
account.setMoney("1000");
list.add(account);
model.addAttribute("list",list);
return "list";
}
}
<c:forEach items="${list}" var="account">
<tr>
<td>
<input type="checkbox" name="ids" value="${account.id}">
</td>
<td>${account.id}</td>
<td>${account.name}</td>
<td>${account.money}</td>
<td><a class="btn btn-default btn-sm" href="${pageContext.request.contextPath}/account/findById?id=${account.id}">修改</a> <a class="btn btn-default btn-sm" href="">删除</a></td>
</tr>
</c:forEach>
6.5 配置springMVC核心配置文件
<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">
<context:component-scan base-package="com.weihong.controller" />
<mvc:annotation-driven />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/" />
<property name="suffix" value=".jsp" />
bean>
<mvc:default-servlet-handler />
beans>
7. spring整合springMVC
7.1 整合思想
spring和springMVC其实根本就不用整合，本来就是一家。
但是我们需要做到spring和web容器整合，让web容器启动的时候自动加载spring配置文件，web容器销毁的时候spring的ioc容器也销毁。
7.2 spring和web容器整合
ContextLoaderListener加载【掌握】
可以使用spring-web包中的ContextLoaderListener监听器，可以监听servletContext容器的创建和销毁，来同时创建或销毁IOC容器。
<!-- spring 与 web容器整合-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
7.3 修改AccountController
@Controller
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(Model model){
List<Account> account = accountService.findAccount();
model.addAttribute("list",account);
return "list";
}
}
8. spring配置声明式事务
<!-- spring的声明式事务-->
<!-- 1.事务管理器-->
<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" >
<property name="dataSource" ref="dataSource" />
</bean>
<!--2.开始事务注解的支持-->
<tx:annotation-driven/>
9. 框架演示
❤❤❤最后为了，框架的完整性，阿红特地写了一个demo
✨✨框架适用于毕业设计、或者大作业，需要的私信博主，或者直接下载也行
项目功能有：
- 查询账户所有基本信息
- 实现账户信息的修改
- 实现单条或多条信息的删除
运行后项目主页：
查询所有账户信息页面：
- url请求地址为：http://localhost:8080/SSM/account/findAll
修改对应账户信息页面
- 跳转页面，并查询出对应的数据进行回显
可多选或单选删除对应账户信息
都看到这了，动动小手点个关注吧
都看到这了，动动小手点个关注吧
都看到这了，动动小手点个关注吧
以上均为所有SSM的配置整合，整理不易，喜欢的请关注关注阿红。最后附上整合好的框架源码：源码地址
