一:前言
学过ssm框架,但是一直没有自己搭建过,所以今天就想搭建一个属于自己的ssm框架,方便以后复习,写的不好,勿喷。
后续会出一个maven版本的项目,现在只是简单的项目搭建
二:实现
1.新建一个Dynamic Web Project项目为ssmDemo
2.第一步:在/ssmDemo/WebContent/WEB-INF/lib导入jar包,jar包就不提供了,有需要的可以私信我
3.第二步:整合spring和mybatis
1.配置mybatis自身的xm文件mybatisConfig.xml,数据库放在spring里配置
<?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>
</configuration>
2. 配置整合spring与mybatis的spring-mybatis.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"
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-4.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<!--配置自动扫描包 -->
<context:component-scan base-package="cn.com.dao" ></context:component-scan>
<!--导入配置文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!--配置数据源:这里用的是阿里的jar包 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.className}"></property>
</bean>
<!-- 整合spring与mybatis -->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--指向配置的数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 读取mybatisConfig.xml配置 -->
<property name="configLocation" value="classpath:resources/mybatis/mybatisConfig.xml"></property>
<!--读取mybatis映射文件配置 -->
<property name="mapperLocations" value="classpath:resources/mapper/*.xml"></property>
</bean>
<!--配置mybatis -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg ref="sqlSessionFactoryBean"></constructor-arg>
</bean>
<!--1.配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--2. 配置事务的属性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 根据方法名指定方法的属性 -->
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<!--配置事务切入点,以及把事务切入点和事务属性关联起来 -->
<aop:config>
<aop:pointcut expression="execution (* cn.com.service.impl.*.*(..))" id="pointcut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
</aop:config>
</beans>
jdbc.username=root
jdbc.password=123456
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.className=com.mysql.jdbc.Driver
3.配置整合spring的spring-main.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"
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-4.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
<!--配置自动扫描service下的基类 -->
<context:component-scan base-package="cn.com.service"></context:component-scan>
</beans>
4.
<?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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.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-4.2.xsd">
<!-- 扫描controller下的基类 -->
<context:component-scan base-package="cn.com.controller"></context:component-scan>
<!-- 配置mvc注解扫描 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
5.配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>ssmDemo</display-name>
<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:resources/spring/spring-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--配置dispatchServlet -->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:resources/spring/springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 解决post乱码 -->
<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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
三:写一个简单功能测试一下
1.测试页面
<a href="selectAll"> pick up</a>
2.创建一个实体类,并在数据库创建一个对应的表
CREATE TABLE `person` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(11) NOT NULL,
`age` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8
package cn.com.enitys;
public class Person {
private Integer id;
private String name;
private Integer age;
public Integer getId() {
return id;
}
public Person() {
super();
}
public Person(Integer id, String name, Integer age) {
super();
this.id = id;
this.name = name;
this.age = age;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
3.写一个controller类
package cn.com.controller;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import cn.com.enitys.Person;
import cn.com.service.impl.PersonService;
@Controller
public class PersonController {
@Resource(name="personService")
private PersonService personService;
@RequestMapping("selectAll")
public String selectAll(Map map) throws Exception {
List<Person> lists=personService.selectAll();
System.out.println(lists);
map.put("list", lists);
return "list";
}
}
4.创建一个service类
package cn.com.service.impl;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import cn.com.dao.DaoSupport;
import cn.com.enitys.Person;
@Service("personService")
public class PersonService {
@Resource(name="daoSupport")
private DaoSupport<Person> dao;
public List<Person> selectAll() throws Exception{
return dao.findForList("cn.com.enitys.Person.queryPerosn", null);
}
}
5.创建mybatis的映射文件
<?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">
<!--namespace:该映射文件的唯一标识 -->
<mapper namespace="cn.com.enitys.Person">
<select id="queryPerosnById" resultType="cn.com.enitys.Person" parameterType="int">
select * from person where id = #{id}
</select>
<select id="queryPerosn" resultType="cn.com.enitys.Person" parameterType="int">
select * from person
</select>
<insert id="addPerson" parameterType="cn.com.enitys.Person">
insert into person(id,name,age) values(#{id},#{name},#{age})
</insert>
<update id="updatePerson">
update person set
name=#{name},
age=#{age}
where id = #{id}
</update>
<delete id="deletePerson">
delete from person
where id = #{id}
</delete>
</mapper>
6.结果页面