不说了多了   直接上代码  首先是从程序的入口开始说：

 web.xml

 <?xml version="1.0" encoding="UTF-8"?>  <web-app version="2.4"   xmlns="http://java.sun.com/xml/ns/j2ee"   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">    <welcome-file-list>      <welcome-file>index.jsp</welcome-file>    </welcome-file-list>        <!--    设置session过期的时间    -->    <session-config>    <session-timeout>20</session-timeout>    </session-config>        <!--    读取spring的配置文件    -->   <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:config/spring.xml;classpath:config/spring-myBatis.xml</param-value>    </context-param>        <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>         <listener>      <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>    </listener>      <!--    设置字符编码，将所有的字符编码同意设置为utf-8    -->    <filter>    <filter-name>filterEncoding</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>filterEncoding</filter-name>    <url-pattern>/</url-pattern>    </filter-mapping>        <!--    生成一次性验证码的servlet    -->    <servlet>    <servlet-name>verifyCode</servlet-name>    <servlet-class>com.longhang.tool.verifyCode.VerifyCodeServlet</servlet-class>    </servlet>        <!--    将所有*.do的请求交给springMVC的DispatcherServlet来处理    -->    <servlet>    <servlet-name>DispatcherServlet</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:config/springMVC-config.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>    </servlet>        <servlet-mapping>    <servlet-name>verifyCode</servlet-name>    <url-pattern>/verifyCode</url-pattern>    </servlet-mapping>        <servlet-mapping>    <servlet-name>DispatcherServlet</servlet-name>    <url-pattern>*.do</url-pattern>    </servlet-mapping>  </web-app>

springMVC的配置文件

<?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: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/aop http://www.springframework.org/schema/aop/spring-aop-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/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">        <!--    配置自动扫描的包，让其扫描    com.longhang,controller下面的所有包   -->        <context:component-scan base-package = "com.longhang.controller"></context:component-scan>       <!--      配置视图解析器    将视图逻辑名解析为/*.jsp   -->    <bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver">    <property name = "prefix" value = "/"></property>    <property name = "suffix" value = ".jsp"></property>    </bean>    </beans>

spring.xml的配置

<?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" xsi:schemaLocation="  http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.0.xsd  ">  <context:property-placeholder location="classpath:config/druid.properties" />  <!-- 自动扫描(自动注入) -->  <context:component-scan base-package = "com.longhang.service"></context:component-scan>      </beans>

spring-myBatis.xml配置

<?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: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-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  ">      <!-- 配置数据源 --><!--      <bean name = "datasource" class = "com.alibaba.druid.pool.DruidDataSource" init-method = "init" destroy-method = "close">      <property name ="url" value = "${jdbc_url}"></property>      <property name="username" value="${jdbc_userName}" />   <property name="password" value="${jdbc_password}" />      </bean>             --><bean name = "datasource" class = "com.alibaba.druid.pool.DruidDataSource" init-method = "init" destroy-method = "close">      <property name ="url" value = "jdbc:mysql://localhost:8000/bookShopping"></property>      <property name="username" value="root" />   <property name="password" value="13072399672" />       </bean>            <!--配置sqlSessionFactory 并读取mybatis的一些配置-->      <bean name = "sqlSessionFactory" class = "org.mybatis.spring.SqlSessionFactoryBean">      <property name = "dataSource" ref = "datasource"></property>      <property name="mapperLocations" value="classpath:mapper/*.xml"/>      </bean>            <!--      自动扫描 将Mapper接口生成代理注入到Spring      -->      <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  <property name="basePackage" value="com.longhang.dao" />  <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />  </bean>            <!--      配置事物      -->     <bean id = "transactionManager" class = "org.springframework.jdbc.datasource.DataSourceTransactionManager">      <property name = "dataSource" ref = "datasource"></property>      </bean>            <!--      <tx:annotation-driven transaction-manager = "transactionManager"/>      -->         <!--      事物的具体内容     -->  <tx:advice id="transactionAdvice" transaction-manager="transactionManager">  <tx:attributes>  <tx:method name="add*" propagation="REQUIRED" />  <tx:method name="append*" propagation="REQUIRED" />  <tx:method name="insert*" propagation="REQUIRED" />  <tx:method name="save*" propagation="REQUIRED" />  <tx:method name="update*" propagation="REQUIRED" />  <tx:method name="modify*" propagation="REQUIRED" />  <tx:method name="edit*" propagation="REQUIRED" />  <tx:method name="delete*" propagation="REQUIRED" />  <tx:method name="remove*" propagation="REQUIRED" />  <tx:method name="repair" propagation="REQUIRED" />  <tx:method name="delAndRepair" propagation="REQUIRED" />      <tx:method name="get*" propagation="SUPPORTS" />  <tx:method name="find*" propagation="SUPPORTS" />  <tx:method name="load*" propagation="SUPPORTS" />  <tx:method name="search*" propagation="SUPPORTS" />  <tx:method name="datagrid*" propagation="SUPPORTS" />      <tx:method name="*" propagation="SUPPORTS" />  </tx:attributes>  </tx:advice>    <!--      定义一个切面,在定义的切面上加入事物     -->      <aop:config>  <aop:pointcut id="transactionPointcut" expression="execution(* com.longhang.service..*Impl.*(..))" />  <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />  </aop:config>    </beans>

关于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" >  <mapper namespace="com.longhang.dao.userDao.UserDao" >    <resultMap id = "baseResultMap" type = "com.longhang.entity.user.User">    <id column = "uid" property = "uid" jdbcType = "CHAR"/>    <result column = "loginname" property = "loginname" jdbcType = "VARCHAR"/>    <result column = "loginpass" property = "loginpass" jdbcType = "VARCHAR"/>    <result column = "email" property = "email" jdbcType = "VARCHAR"/>    <result column = "status" property = "status" jdbcType = "VARCHAR"/>    <result column = "activationCode" property = "activationCode" jdbcType = "CHAR"/>    </resultMap>            <sql id = "base_column_list">    uid,loginname,loginpass,email,status,activationCode    </sql>       <!--根据id查询     返回的类型为User    -->    <select id="findById" resultMap="baseResultMap" parameterType="java.lang.String" >      select       <include refid="base_column_list" />      from l_user      where uid = #{uid,jdbcType=CHAR}    </select>        <!--    根据activationCode查询    返回值是User    -->        <select id = "findByActivationCode" resultMap = "baseResultMap" parameterType = "java.lang.String">    select <include refid = "base_column_list"/>    from l_user    where activationCode = #{activationCode}    </select>        <!--    根据loginname查看总条数    -->    <select id = "countNumberByLoginName" resultType = "int" parameterType="java.lang.String">    select count(*) from l_user where loginname = #{loginname}    </select>        <!--     根据email查看总条数     -->     <select id = "countNumberByEmail" resultType = "int" parameterType = "java.lang.String">      select count(*) from l_user where email = #{email}     </select>          <!--          -->     <select id = "isActivation" resultType = "int" parameterType = "java.lang.String">     select count(*) from l_user where activationCode = #{activationCode}     </select>        <delete id = "deleteById" parameterType = "java.lang.String">    delete from l_user    where uid = #{uid,jdbcType=CHAR}    </delete>          <insert id = "addUser" parameterType = "com.longhang.entity.user.User">    insert into l_user(uid,loginname,loginpass,email,status,activationCode)    values(#{uid},#{loginname},#{loginpass},#{email},#{status},#{activationCode})   </insert>      <!--    <insert id="insertSelective" parameterType="com.bky.model.Add" >      insert into tadd      <trim prefix="(" suffix=")" suffixOverrides="," >        <if test="id != null" >          id,        </if>        <if test="tname != null" >          tname,        </if>        <if test="tpwd != null" >          tpwd,        </if>      </trim>      <trim prefix="values (" suffix=")" suffixOverrides="," >        <if test="id != null" >          #{id,jdbcType=VARCHAR},        </if>        <if test="tname != null" >          #{tname,jdbcType=VARCHAR},        </if>        <if test="tpwd != null" >          #{tpwd,jdbcType=VARCHAR},        </if>      </trim>    </insert>-->    <!--    <update id="updateByPrimaryKeySelective" parameterType="com.bky.model.Add" >      update tadd      <set >        <if test="tname != null" >          tname = #{tname,jdbcType=VARCHAR},        </if>        <if test="tpwd != null" >          tpwd = #{tpwd,jdbcType=VARCHAR},        </if>      </set>      where id = #{id,jdbcType=VARCHAR}    </update>-->        <update id = "updateById" parameterType="com.longhang.entity.user.User">    update l_user    set uid = #{uid},       loginname = #{loginname},       loginpass = #{loginpass},       email = #{email},       status = #{status},       activationCode = #{activationCode}       where uid = #{uid}    </update>        <update id="updatePropByID">   update  l_user set  <foreach collection="prop" item="item" index="index" separator=",">            ${item.key} = #{item.value}          </foreach>          <where>          uid = #{uid}          </where>  </update>    <update id="updatePropByCondition">  <![CDATA[    update  l_user set  ]]>  <foreach collection="prop" item="item" index="index" separator=",">            ${item.key} = #{item.value}          </foreach>          <where>          <if test="condition != null">          ${condition}          </if>          </where>  </update>        <select id="getAll" resultMap="baseResultMap">    SELECT * FROM uid    </select>  </mapper>

接口

package com.longhang.dao.userDao;      import java.util.List;  import java.util.Map;  import java.util.Set;  import java.util.Map.Entry;      import org.apache.ibatis.annotations.Param;      import com.longhang.entity.user.User;      public interface UserDao {  public User findById(String uid);  public int deleteById(String uid);  public int addUser(User user);  public int updateById(String uid);  public List<User> getAll();     public int countNumberByLoginName(String loginname);  public int countNumberByEmail(String email);  public int isActivation(String activationCode);  public User findByActivationCode(String activationCode);     public int updatePropByID(@Param("prop")Set<Entry<String, Object>> prop,@Param("uid")String id);  public int updatePropByCondition(@Param("prop")Set<Entry<String,Object>> prop,@Param("condition")String condition);  }