SSM框架搭建步骤

基本架构

配置xml文件

applicationContext.xml

1. 配置数据源连接对象DataSource接口。
2. 配置sqlSessionFactory对象–用于生成sqlSession对象创建一次与数据库的会话。
3. 配置spring的声明式事务Spring详解资料
4. 面向切面AOP编程配置
5. 扫描生成dao层bean对象和service层bean对象bean对象详解

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop" 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-3.0.xsd       http://www.springframework.org/schema/tx       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd       http://www.springframework.org/schema/aop        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd    http://www.springframework.org/schema/context    http://www.springframework.org/schema/context/spring-context.xsd"    default-autowire="byName">    <!-- 先配置DataSource接口，DataSource由C3P0来提供 -->    <bean id="dataSource" destroy-method="close"        class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="driverClass" value="com.mysql.jdbc.Driver" />        <!-- mysql连接        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/hotelsuppliesdatabase" />        <property name="user" value="root" />        <property name="password" value="***" />        -->        <!-- oracle连接 -->        <property name="driverClass" value="oracle.jdbc.driver.OracleDriver" />        <property name="jdbcUrl" value="jdbc:oracle:thin:@localhost:1521:orcl" />        <property name="user" value="**"/>        <property name="password" value="****" />        <!-- 最大连接数 -->        <property name="maxPoolSize" value="60" />        <!--最小连接数 -->        <property name="minPoolSize" value="1" />        <!--初始化大小 -->        <property name="initialPoolSize" value="1" />        <property name="maxIdleTime" value="60" />        <property name="checkoutTimeout" value="10000" />    </bean>    <!-- 配置sqlSessionFactory -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <!-- 配置数据源 -->        <property name="dataSource" ref="dataSource" />        <!-- 加载mybatis配置文件 -->        <property name="configLocation" value="classpath:mybatis-config.xml"></property>    </bean>    <!-- 配置spring的声明式事务 -->    <!-- 事务管理的bean -->    <bean id="transactionManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 声明式事务的配置事务的执行范围 -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <!-- 事务的定义 -->        <tx:attributes>            <tx:method name="*" propagation="REQUIRED" /><!-- 所有的方法全部加入到事务中 -->            <tx:method name="add*" rollback-for="EXCEPTION" />            <tx:method name="get*" propagation="NEVER" /><!-- 不执行事务操作 -->            <tx:method name="set*" propagation="NEVER" /><!-- 不执行事务操作 -->        </tx:attributes>    </tx:advice>    <!-- AOP编程实现 -->    <!--配置参与事务的类  -->    <aop:config>        <!-- 切入点的配置，哪些类或者哪些方法进入到切面中 -->        <aop:pointcut expression="execution(* com.jinglin.hotel.service..*(..))"            id="allMethods" />        <!-- 把切入点同事务整合在一起 -->        <aop:advisor advice-ref="txAdvice" pointcut-ref="allMethods" />    </aop:config>    <!-- 配置代理对象及sqlSession <bean id="userInfoMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">         <property name="mapperInterface" value="com.jinglin.hotel.dao.imp.UserInfoMapper"></property>         <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> </bean>         配置service <bean id="userInfoService" class="com.jinglin.hotel.service.UserInfoService"></bean> -->    <!--简化配置代理 -->    <!-- 对dao层的扫描，实际就是批量生成dao层的bean对象 生成的规则：bean的id名实际就是dao层类或接口的首字母小写 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <!-- 配置扫描的包名 -->        <property name="basePackage" value="com.jinglin.hotel.dao.imp"></property>        <!--配置生成  -->        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>    </bean>    <!-- 扫描service层 -->    <!-- service层扫描（批量生成bean对象） -->    <context:component-scan base-package="com.jinglin.hotel.service" /></beans>

mybatis-config.xml

1. 类型别名。
2. 配置映射文件。

<?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>    <!--类型别名  实体对象映射文件中类型别名-->    <typeAliases>        <typeAlias type="com.zt.model.UserInfo" alias="UserInfo"/>    </typeAliases>    <!--配置映射文件  -->    <mappers>        <mapper resource="com/zt/model/UserInfoMapper.xml" />           </mappers></configuration>

springmvc.xml

1. 开启注解采用注解开发
2. 配置视图解析器视图解析器
3. 扫描controller层

<?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:p="http://www.springframework.org/schema/p"    xmlns:mvc="http://www.springframework.org/schema/mvc"    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        http://www.springframework.org/schema/context/spring-context.xsd        http://www.springframework.org/schema/mvc           http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"        default-autowire="byName">    <!-- 开启扫描包的注解 -->    <context:annotation-config/>    <!-- 用注解的方式 -->    <mvc:annotation-driven>    </mvc:annotation-driven>    <!-- 视图解析的bean对象 -->    <bean        class="org.springframework.web.servlet.view.InternalResourceViewResolver">    </bean>    <!-- Controller层也通过扫描的方式进入spring中 -->    <context:component-scan base-package="com.zt.controller"/></beans>

web.xml
1. 配置springmvc前端控制器。
2. 配置监听器
3. 配置过滤器过post提交滤数据乱码

<?xml version="1.0" encoding="UTF-8"?><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_3_0.xsd" id="WebApp_ID" version="3.0">  <display-name>springmvc1</display-name> <!-- 配置sringmvc的前端控制器 -->  <servlet>     <servlet-name>springmvc2</servlet-name>     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>     <init-param>       <param-name>contextConfigLocation</param-name>       <param-value>classpath:springmvc.xml</param-value>     </init-param>     <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>     <servlet-name>springmvc2</servlet-name>     <url-pattern>*.action</url-pattern><!--配置的访问路径，一定是按照这种格式写  -->  </servlet-mapping>  <!-- 配置监听器，随着web容器加载，那么applicationContext就加载到内存中 -->  <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>  <!-- 防止post提交表单数据的时候出现乱码 -->  <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>

创建实体对象配置映射文件
实体对象：继承接口 Serializable开启序列化功能java对象序列化

package com.zt.model;import java.io.Serializable;/** * @author my *创建用户对象 继承接口 Serializable开启序列化功能 */public class UserInfo implements Serializable{    private Integer userId;    private String userName;    private String userPwd;    private String card;    private String job;    private String del;}

dao层接口实现：
dao层接口

package com.zt.dao;import java.util.List;/** * @author my *增删改查方法 * @param <T> */public interface MIDao<T> {    int addItem(T t);//添加数据    int updateItem(T t);//更新数据    int deleteItem(Object id);//删除数据    T getModel(Object id);//获取单条数据    List<T> getItems(T t);//查询数据}

接口继承：

package com.zt.dao.imp;import com.zt.dao.MIDao;import com.zt.model.UserInfo;/** * @author my *继承接口 */public interface UserInfoMapper extends MIDao<UserInfo> {}

配置映射文件：Mapper.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><!-- 加载命名空间 注意在mybatis-confige.xml中配置映射路径--><mapper namespace="com.zt.dao.imp.UserInfoMapper">    <!--增  -->    <insert id="addItem" parameterType="UserInfo">        insert into userInfo(userName,userPwd,card,job)         values(#{userName},#{userPwd},#{card},#{job})    </insert>    <!-- 删 -->    <delete id="deleteItem">        delete from userInfo where userId=#{userId}    </delete>    <!-- 改 -->    <update id="updateItem" parameterType="UserInfo">        update userInfo        <set>            <if test="userName !=null and userName != '' ">                userName=#{userName}            </if>            <if test="userPwd !=null and userPwd !='' ">                userPwd=#{userPwd}            </if>            <if test="card !=null and card != '' ">                card=#{card}            </if>            <if test="job !=null and job!= '' ">                job =#{job}            </if>        </set>    </update>    <!--查  -->    <!-- 定义重复使用sql代码 -->    <sql id="selectColumn">        select * from userInfo where del='N'    </sql>    <!-- 单条查询 -->    <select id="getModel" resultType="UserInfo">        <include refid="selectColumn"></include>        and userId=#{userId}    </select>    <!-- 查询集 -->    <resultMap type="UserInfo" id="userInfos">        <id column="userId" property="userId"/>        <result column="userName" property="userName"/>        <result column="userPwd" property="userPwd"/>        <result column="card" property="card"/>        <result column="job" property="job"/>        <result column="del" property="del"/>    </resultMap>    <select id="getItems" parameterType="UserInfo" resultMap="userInfos">        <include refid="selectColumn"></include>        <if test="userId !=null and userId != '' ">            and userId=#{userId}        </if>        <if test="userName !=null and userName != '' ">            and userName=#{userName}        </if>        <if test="userPwd !=null and userPwd !='' ">            and userPwd=#{userPwd}        </if>        <if test="card !=null and card != '' ">            and card like concat('%',#{card},'%')        </if>        <if test="job !=null and job!= '' ">            and job like concat('%',#{job},'%')        </if>    </select></mapper>