Spring+SpringMVC+Mybatis—三个框架(SSM)整合
文章目录
- 1、整合注意事项
- 2、整合思路、步骤
- （1）搭建环境
- （2）Spring + Springmvc
- （3）MyBatis
- （4）Spring + MyBatis
- （5）测试: REST CRUD
- 3、整合的配置
- 3.1 web.xml
- 3.2 Spring 配置
- 3.3 SpringMVC配置
- 3.4 MyBatis配置
- 3.5 Spring整合Mybatis配置
- 4、整合测试
- 5、整合案例（详细代码）
- 5.1 环境准备
- （1）创建动态web工程并导入jar包
- （2）db.properties
- （3）log4j.xml
- 5.2 配置web.xml文件
- 5.3 Javabean
- 5.4 mapper层（dao层）
- 5.5 配置SQL映射文件
- 5.6 service层
- 5.7 controller层
- 5.8 配置applicationContext.xml文件
- 5.9 配置spring-mvc.xml文件
- 5.10 配置mybatis的主配置文件
- 5.11 创建index.jsp页面
- 5.12 创建list.jsp页面
- 5.13 效果
1、整合注意事项
（1）查看不同MyBatis版本整合Spring时使用的适配包；
（2）下载整合适配包
https://github.com/mybatis/spring/releases
（3）官方整合示例，jpetstore
https://github.com/mybatis/jpetstore-6
2、整合思路、步骤
（1）搭建环境
创建一个动态的WEB工程
导入SSM需要使用的jar包
导入整合适配包
导入其他技术的一些支持包 连接池 数据库驱动 日志…
（2）Spring + Springmvc
在web.xml中配置: Springmvc的前端控制器 实例化Spring容器的监听器 字符编码过滤器 REST 过滤器
创建Spring的配置文件: applicationContext.xml:组件扫描、 连接池、 事务…
创建Springmvc的配置文件: springmvc.xml : 组件扫描、 视图解析器 mvc:...
（3）MyBatis
创建MyBatis的全局配置文件
编写实体类 Mapper接口 Mapper映射文件
（4）Spring + MyBatis
MyBatis的 SqlSession的创建 .
MyBatis的 Mapper接口的代理实现类
（5）测试: REST CRUD
查询所有的员工信息,列表显示
3、整合的配置
3.1 web.xml
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<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>
<filter>
<filter-name>HiddenHttpMethodFilterfilter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilterfilter-class>
filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>springDispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:springmvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springDispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
3.2 Spring 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"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
xsi:schemaLocation="http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
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-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<context:component-scan base-package="com.baidu.ssm">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<context:property-placeholder location="classpath:db.properties"/>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}">property>
<property name="jdbcUrl" value="${jdbc.url}">property>
<property name="user" value="${jdbc.username}">property>
<property name="password" value="${jdbc.password}">property>
bean>
<bean id="dataSourceTransactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource">property>
bean>
<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
beans>
3.3 SpringMVC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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
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-4.0.xsd">
<context:component-scan base-package="com.baidu.ssm" use-default-filters="false">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/">property>
<property name="suffix" value=".jsp">property>
bean>
<mvc:default-servlet-handler/>
<mvc:annotation-driven/>
beans>
3.4 MyBatis配置
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
<setting name="jdbcTypeForNull" value="NULL"/>
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="aggressiveLazyLoading" value="false"/>
<setting name="cacheEnabled" value="true"/>
settings>
configuration>
3.5 Spring整合Mybatis配置
4、整合测试
（1）编写页面，发送请求：http://localhost:8080/ssm
（2）编写Handler,处理请求，完成响应
（3）在页面中获取数据，显示数据
5、整合案例（详细代码）
5.1 环境准备
（1）创建动态web工程并导入jar包
com.springsource.net.sf.cglib-2.2.0.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
spring-aop-4.0.0.RELEASE.jar
spring-aspects-4.0.0.RELEASE.jar
log4j.jar
mybatis-3.4.1.jar
mybatis-spring-1.3.0.jar
mysql-connector-java-5.1.37-bin.jar
druid-1.1.9.jar
jsqlparser-0.9.5.jar
pagehelper-5.0.0.jar
spring-beans-4.0.0.RELEASE.jar
spring-context-4.0.0.RELEASE.jar
spring-core-4.0.0.RELEASE.jar
spring-expression-4.0.0.RELEASE.jar
commons-logging-1.1.3.jarspring-jdbc-4.0.0.RELEASE.jar
spring-orm-4.0.0.RELEASE.jar
spring-tx-4.0.0.RELEASE.jar
spring-web-4.0.0.RELEASE.jar
spring-webmvc-4.0.0.RELEASE.jar
taglibs-standard-impl-1.2.1.jar
taglibs-standard-spec-1.2.1.jar
（2）db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/study?characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
（3）log4j.xml
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
<param name="Encoding" value="UTF-8" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS} %m (%F:%L) \n" />
layout>
appender>
<logger name="java.sql">
<level value="debug" />
logger>
<logger name="org.apache.ibatis">
<level value="info" />
logger>
<root>
<level value="debug" />
<appender-ref ref="STDOUT" />
root>
log4j:configuration>
5.2 配置web.xml文件
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<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>
<init-param>
<param-name>forceEncodingparam-name>
<param-value>trueparam-value>
init-param>
filter>
<filter-mapping>
<filter-name>characterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<filter>
<filter-name>hiddenHttpMethodFilterfilter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilterfilter-class>
filter>
<filter-mapping>
<filter-name>hiddenHttpMethodFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>springDispatcherServletservlet-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>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springDispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
5.3 Javabean
package com.baidu.ssm.beans;
public class Employee {
private Integer id;
private String lastName;
private String gender;
private String descr;
private Department dept;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getDescr() {
return descr;
}
public void setDescr(String descr) {
this.descr = descr;
}
public Department getDept() {
return dept;
}
public void setDept(Department dept) {
this.dept = dept;
}
@Override
public String toString() {
return "Employee [id=" + id + ", lastName=" + lastName + ", gender=" + gender + ", descr=" + descr + ", dept="
+ dept + "]";
}
}
package com.baidu.ssm.beans;
public class Department {
private Integer id;
private String deptName;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getDeptName() {
return deptName;
}
public void setDeptName(String deptName) {
this.deptName = deptName;
}
@Override
public String toString() {
return "Department [id=" + id + ", deptName=" + deptName + "]";
}
}
5.4 mapper层（dao层）
package com.baidu.ssm.mapper;
import java.util.List;
import org.springframework.stereotype.Repository;
import com.baidu.ssm.beans.Employee;
@Repository
public interface EmployeeMapper {
/**
* 查询所有员工的信息以及部门的信息
*/
List<Employee> getEmployeeAll();
}
5.5 配置SQL映射文件
<mapper namespace="com.baidu.ssm.mapper.EmployeeMapper">
<select id="getEmployeeAll" resultMap="getAll">
select e.id eid,last_name,gender,descr,e.dept_id,d.dept_name
from tbl_employee e,tbl_department d
where e.dept_id = d.id
select>
<resultMap type="employee" id="getAll">
<id column="eid" property="id"/>
<result column="last_name" property="lastName"/>
<result column="gender" property="gender"/>
<result column="descr" property="descr"/>
<association property="dept" javaType="department">
<id column="id" property="id"/>
<result column="dept_name" property="deptName"/>
association>
resultMap>
mapper>
5.6 service层
package com.baidu.ssm.service;
import java.util.List;
import com.baidu.ssm.beans.Employee;
public interface EmployeeService {
List<Employee> getEmployeeAll();
}
package com.baidu.ssm.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.baidu.ssm.beans.Employee;
import com.baidu.ssm.mapper.EmployeeMapper;
import com.baidu.ssm.service.EmployeeService;
@Service
public class EmployeeServiceImpl implements EmployeeService{
@Autowired
private EmployeeMapper employeeMapper;
@Override
public List<Employee> getEmployeeAll() {
return employeeMapper.getEmployeeAll();
}
}
5.7 controller层
package com.baidu.ssm.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.baidu.ssm.beans.Employee;
import com.baidu.ssm.service.EmployeeService;
@Controller
public class EmployeeController {
@Autowired
private EmployeeService employeeService;
@RequestMapping(value="emps",method=RequestMethod.GET)
public String getAllEmps(Model model) {
//调用service层的方法
List<Employee> emps = employeeService.getEmployeeAll();
//将查询到的emps模型数据添加到model中
model.addAttribute("emps", emps);
return "list";
}
}
5.8 配置applicationContext.xml文件
<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"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
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-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
<context:component-scan base-package="com.baidu.ssm">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<context:property-placeholder location="classpath: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="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
bean>
<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource">property>
<property name="configLocation" value="classpath:mybatis-conf.xml"/>
bean>
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.baidu.ssm.mapper">property>
bean>
beans>
5.9 配置spring-mvc.xml文件
<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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
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-4.0.xsd">
<context:component-scan base-package="com.baidu.ssm" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
bean>
<mvc:default-servlet-handler/>
<mvc:annotation-driven/>
beans>
5.10 配置mybatis的主配置文件
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true"/>
<setting name="lazyLoadingEnabled" value="true"/>
<setting name="aggressiveLazyLoading" value="false"/>
settings>
<typeAliases>
<package name="com.baidu.ssm.beans"/>
typeAliases>
<mappers>
<package name="com.baidu.ssm.mapper"/>
mappers>
configuration>
5.11 创建index.jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
人事管理系统的入口
欢迎来到人事管理系统页面
进入人事管理系统
5.12 创建list.jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
Insert title here
欢迎进入人事管理系统
所有员工进行显示
员工编号
员工姓名
员工性别
员工描述
所在部门
操作
${emp.id}
${emp.lastName}
${emp.gender}
${emp.descr }
${emp.dept.deptName}
修改
删除
添加员工
5.13 效果
