SpringMVC 08 -SSM整合
SpringMVC-SSM整合
- 1 整合思路
- 2 SSM整合依赖
- 3 配置文件
-
- 3.1 web.xml
- 3.2 springmvc配置
- 3.3 spring-service配置
- 3.4 spring-tx配置
- 3.5 spring-dao配置
- 3.6 mybatis配置
- 3.7 数据源配置
- 4 Mapper层
-
- 4.1 Mapper接口
- 4.2 Mapper映射文件
- 5 Service层
- 6 Controller层
- 7 前端JSP
- 8 整合测试
-
- 8.1 声明式事务测试
- 8.2 整合后注解扫描问题
1 整合思路
Spring整合MyBatis，将MyBatis的实例交给Spring进行管理
Spring整合AOP声明式事务管理
Spring整合SpringMVC,无需额外配置操作
启动tomcat，加载Spring的配置文件
2 SSM整合依赖
- 数据库相关
- mysql驱动依赖
- mybatis依赖
- druid连接池
- Spring整合Mybatis依赖
- Mybatis分页插件依赖
- Mybatis分页插件依赖
- Spring相关
- spring的核心依赖
- springAOP依赖
- spring整合持久层依赖
- spring整合单元测试依赖
- spring声明式事务依赖
- spring织入依赖
aspectjweaver- springmvc相关的依赖
- JSON交互依赖
jackson-databind- 文件上传相关依赖
- fileupload 文件上传的依赖
- 依赖排除
- servlet依赖
- jsp依赖
- jstl依赖3个
jstlstandardjstl-api- lombok的依赖
lombok
<dependencies>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.47version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.5.4version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.1.10version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.2version>
dependency>
<dependency>
<groupId>com.github.pagehelpergroupId>
<artifactId>pagehelperartifactId>
<version>5.1.10version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.9.6version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>5.3.6version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.12.2version>
dependency>
<dependency>
<groupId>commons-iogroupId>
<artifactId>commons-ioartifactId>
<version>2.4version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>1.3.3version>
<exclusions>
<exclusion>
<groupId>javax.servletgroupId>
<artifactId>servlet-apiartifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.1.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jsp-apiartifactId>
<version>2.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servlet.jsp.jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>taglibsgroupId>
<artifactId>standardartifactId>
<version>1.1.2version>
dependency>
<dependency>
<groupId>javax.servlet.jsp.jstlgroupId>
<artifactId>jstl-apiartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.18.12version>
dependency>
dependencies>
3 配置文件
3.1 web.xml
<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">
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring/applicationContext-*.xmlparam-value>
context-param>
<filter>
<filter-name>encodingFilterfilter-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>encodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<servlet>
<servlet-name>dispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring/springmvc.xmlparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>dispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
3.2 springmvc配置
- 开启Spring的注解扫描
- 开启SpringMVC的注解扫描
- 配置视图解析器
- 配置文件上传解析器
<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">
<context:component-scan base-package="com.ying.controller"/>
<mvc:annotation-driven/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/pages/"/>
<property name="suffix" value=".jsp"/>
bean>
<bean class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10000000"/>
<property name="maxUploadSizePerFile" value="2000000"/>
<property name="defaultEncoding" value="utf-8"/>
bean>
beans>
3.3 spring-service配置
<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 https://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.ying"/>
beans>
3.4 spring-tx配置
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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/tx
https://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
<import resource="classpath:spring/applicationContext-dao.xml"/>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
bean>
<tx:advice id="myAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="select*" isolation="DEFAULT" propagation="SUPPORTS" timeout="-1"/>
<tx:method name="find*" isolation="DEFAULT" propagation="SUPPORTS" timeout="-1"/>
<tx:method name="get*" isolation="DEFAULT" propagation="SUPPORTS" timeout="-1"/>
<tx:method name="query*" isolation="DEFAULT" propagation="SUPPORTS" timeout="-1"/>
<tx:method name="*" isolation="DEFAULT" propagation="REQUIRED" timeout="-1"/>
tx:attributes>
tx:advice>
<aop:config>
<aop:pointcut id="pc" expression="execution(* com.ying.service..*.*(..))"/>
<aop:advisor advice-ref="myAdvice" pointcut-ref="pc"/>
aop:config>
beans>
3.5 spring-dao配置
<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 https://www.springframework.org/schema/context/spring-context.xsd">
<context:property-placeholder location="classpath:mybatis/db.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="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ying.mapper"/>
bean>
beans>
3.6 mybatis配置
DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
settings>
<typeAliases>
<package name="com.ying.pojo"/>
typeAliases>
<plugins>
<plugin interceptor="com.github.pagehelper.PageInterceptor">plugin>
plugins>
configuration>
3.7 数据源配置
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///test
jdbc.username=root
jdbc.password=123456
4 Mapper层
4.1 Mapper接口
public interface EmpMapper {
List<Emp> getAll();
}
4.2 Mapper映射文件
<mapper namespace="com.ying.mapper.EmpMapper">
<select id="getAll" resultType="EmP">
select * from emp
select>
mapper>
5 Service层
@Service
public class EmpServiceImpl implements EmpService {
@Autowired
private EmpMapper empMapper;
@Override
public List<Emp> getAll() {
return empMapper.getAll();
}
}
6 Controller层
@Controller
@RequestMapping("/emp")
public class EmpController {
@Autowired
private EmpService empService;
@RequestMapping("/getAll")
public String getAll(Model model){
List<Emp> empList = empService.getAll();
//empList.forEach(System.out::println);
model.addAttribute("empList",empList);
return "empList";
}
}
7 前端JSP
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
Title
员工编号
员工图片
员工姓名
员工经理
员工职位
入职日期
员工工资
员工奖金
部门编号
操作
${emp.empno}
${emp.ename}
${emp.mgr}
${emp.job}
${emp.sal}
${emp.comm}
${emp.deptno}
删除修改
8 整合测试
8.1 声明式事务测试
- 在service层编写更新(增删改)操作，然后编写异常代码。测试事务是否生效
8.2 整合后注解扫描问题
此时项目中有两个工厂
- DispatcherServlet 启动的springMVC工厂==负责生产Controller及springMVC自己的系统组件
- ContextLoaderListener 启动的spring工厂==负责生产其他所有组件
- springMVC的工厂会被设置为spring工厂的子工厂，可以随意获取spring工厂中的组件
两个工厂不能有彼此侵入，即，生产的组件不能有重合。
SpringMVC工厂
<context:component-scan base-package="com.ying" use-default-filters="false">
<context:include-filter
type="annotation"
expression="org.springframework.stereotype.Controller"/>
context:component-scan>
Spring工厂
<context:component-scan base-package="com.ying" use-default-filters="true" >
<context:exclude-filter
type="annotation"
expression="org.springframework.stereotype.Controller"/>
context:component-scan>