<!--全局的所有版本号定义-->    <properties>        <!-- 日志管理 -->        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <logback.version>1.1.7</logback.version>        <slf4j.version>1.7.21</slf4j.version>        <janino.version>2.7.8</janino.version>        <!-- 数据库 -->        <db.mysql>5.1.30</db.mysql>        <db.pool.druid>1.0.9</db.pool.druid>        <!-- 主要依赖库的版本定义 -->        <spring.version>4.1.3.RELEASE</spring.version>        <aspectj.version>1.8.4</aspectj.version>        <mybatis.version>3.2.7</mybatis.version>        <mybatis-spring.version>1.2.2</mybatis-spring.version>        <commons-lang3.version>3.3.2</commons-lang3.version>        <commons-io.version>2.4</commons-io.version>    </properties>    <dependencies>        <!-- 日志文件管理包 -->        <!--  logback+slf4j -->        <dependency>            <groupId>org.slf4j</groupId>            <artifactId>slf4j-api</artifactId>            <version>${slf4j.version}</version>        </dependency>        <dependency>            <groupId>ch.qos.logback</groupId>            <artifactId>logback-core</artifactId>            <version>${logback.version}</version>        </dependency>        <dependency>            <groupId>ch.qos.logback</groupId>            <artifactId>logback-access</artifactId>            <version>${logback.version}</version>        </dependency>        <dependency>            <groupId>ch.qos.logback</groupId>            <artifactId>logback-classic</artifactId>            <version>${logback.version}</version>        </dependency>        <!-- 日志文件管理包-提高性能log输出性能 -->        <!--  janino -->        <dependency>            <groupId>org.codehaus.janino</groupId>            <artifactId>commons-compiler</artifactId>            <version>${janino.version}</version>        </dependency>        <dependency>            <groupId>org.codehaus.janino</groupId>            <artifactId>janino</artifactId>            <version>${janino.version}</version>        </dependency>    <!-- spring核心包 -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-core</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-jdbc</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-oxm</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-tx</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-aop</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-context-support</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-test</artifactId>        <version>${spring.version}</version>    </dependency>    <dependency>        <groupId>org.aspectj</groupId>        <artifactId>aspectjweaver</artifactId>        <version>${aspectj.version}</version>    </dependency>        <!--常用工具包-->        <dependency>            <groupId>org.apache.commons</groupId>            <artifactId>commons-lang3</artifactId>            <version>${commons-lang3.version}</version>        </dependency>        <dependency>            <groupId>commons-io</groupId>            <artifactId>commons-io</artifactId>            <version>${commons-io.version}</version>        </dependency>        <!--json解析:spring-mvc.xml中配置避免IE执行AJAX时，返回JSON出现下载文件-->        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-core</artifactId>            <version>2.7.4</version>        </dependency>        <dependency>            <groupId>com.fasterxml.jackson.core</groupId>            <artifactId>jackson-databind</artifactId>            <version>2.7.4</version>        </dependency>    <!-- mybatis核心包 -->    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis</artifactId>        <version>${mybatis.version}</version>    </dependency>    <!-- mybatis/spring包 -->    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis-spring</artifactId>        <version>${mybatis-spring.version}</version>    </dependency>    <!-- 导入Mysql数据库链接jar包 -->    <dependency>        <groupId>mysql</groupId>        <artifactId>mysql-connector-java</artifactId>        <version>${db.mysql}</version>    </dependency>        <!--阿里巴巴druid连接池-->        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>druid</artifactId>            <version>${db.pool.druid}</version>        </dependency>    </dependencies>

#********Mybatis  分库(这里做测试模拟)**************jdbc.driver = com.mysql.jdbc.Driverjdbc.master.url = jdbc:mysql://localhost:3306/longebo?useUnicode=true&characterEncoding=UTF-8&generateSimpleParameterMetadata=http://www.mamicode.com/true>&characterEncoding=UTF-8&generateSimpleParameterMetadata=http://www.mamicode.com/true>

<?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"       xmlns:aop="http://www.springframework.org/schema/aop"       xsi:schemaLocation="http://www.springframework.org/schema/beans                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd                        http://www.springframework.org/schema/context                        http://www.springframework.org/schema/context/spring-context-3.1.xsd                        http://www.springframework.org/schema/aop                        http://www.springframework.org/schema/aop/spring-aop.xsd">    <!-- spring管理接口和事物，只扫描 -->    <context:component-scan base-package="com.longebo.common.*,com.longebo.http.server.*">        <context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>    </context:component-scan>    <!-- 引入配置文件 -->    <bean id="propertyConfigurer"          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">        <property name="location" value="classpath:application.properties" />    </bean>    <aop:aspectj-autoproxy/>    <import resource="spring-datasource-master.xml"/>    <import resource="spring-datasource-slave.xml"/></beans>

<?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"       xmlns:mvc="http://www.springframework.org/schema/mvc"       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-3.1.xsd                        http://www.springframework.org/schema/context                        http://www.springframework.org/schema/context/spring-context-3.1.xsd                        http://www.springframework.org/schema/mvc                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd                        http://www.springframework.org/schema/tx                        http://www.springframework.org/schema/tx/spring-tx.xsd                        http://www.springframework.org/schema/aop                        http://www.springframework.org/schema/aop/spring-aop.xsd                        ">    <!--可视化访问地址 http://localhost:8080/druid-->    <bean id="dataSourceMaster" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"  destroy-method="close">        <property name="url" value="${jdbc.master.url}" />        <property name="username" value="${jdbc.master.username}" />        <property name="password" value="${jdbc.master.password}" />        <!-- 配置初始化大小、最小、最大 -->        <property name="initialSize" value="1" />        <property name="minIdle" value="2" />        <property name="maxActive" value="20" />        <!-- 配置获取连接等待超时的时间 -->        <property name="maxWait" value="60000" />        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->        <property name="timeBetweenEvictionRunsMillis" value="60000" />        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->        <property name="minEvictableIdleTimeMillis" value="300000" />        <property name="validationQuery" value="SELECT ‘x‘" />        <property name="testWhileIdle" value="true" />        <property name="testOnBorrow" value="false" />        <property name="testOnReturn" value="false" />        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->        <property name="poolPreparedStatements" value="true" />        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />        <!-- 配置监控统计拦截的filters -->        <property name="filters" value="stat" />    </bean>    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->    <bean id="sqlSessionFactory1" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSourceMaster" />        <!-- 自动扫描mapping.xml文件 -->        <property name="mapperLocations" value="classpath:mybatis/*/*Mapper.xml"></property>        <!--自动扫描定义typeAliases类型-->        <property name="typeAliasesPackage" value="com.longebo.common.*"/>    </bean>    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.longebo.common.dao" />        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory1"></property>    </bean>    <bean id="sqlSessionMaster" class="org.mybatis.spring.SqlSessionTemplate" scope="prototype">        <constructor-arg index="0" ref="sqlSessionFactory1"/>    </bean>    <aop:config>        <aop:pointcut id="appService"                      expression="execution(* com.longebo.common.service..*Service*.*(..))"/>        <aop:advisor advice-ref="txAdvice1" pointcut-ref="appService"/>    </aop:config>    <tx:advice id="txAdvice1" transaction-manager="transactionManager1">        <tx:attributes>            <tx:method name="select*" read-only="true"/>            <tx:method name="find*" read-only="true"/>            <tx:method name="get*" read-only="true"/>            <tx:method name="save*" read-only="false"/>            <tx:method name="*"/>        </tx:attributes>    </tx:advice>    <!-- 注解式事物 -->    <tx:annotation-driven transaction-manager="transactionManager1" />    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->    <bean id="transactionManager1"          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSourceMaster" />    </bean></beans>

<?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"       xmlns:mvc="http://www.springframework.org/schema/mvc"       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-3.1.xsd                        http://www.springframework.org/schema/context                        http://www.springframework.org/schema/context/spring-context-3.1.xsd                        http://www.springframework.org/schema/mvc                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd                        http://www.springframework.org/schema/tx                        http://www.springframework.org/schema/tx/spring-tx.xsd                        http://www.springframework.org/schema/aop                        http://www.springframework.org/schema/aop/spring-aop.xsd                        ">    <bean id="dataSourceSlave" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">        <property name="url" value="${jdbc.slave.url}" />        <property name="username" value="${jdbc.slave.username}" />        <property name="password" value="${jdbc.slave.password}" />        <!-- 配置初始化大小、最小、最大 -->        <property name="initialSize" value="1" />        <property name="minIdle" value="1" />        <property name="maxActive" value="20" />        <!-- 配置获取连接等待超时的时间 -->        <property name="maxWait" value="60000" />        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->        <property name="timeBetweenEvictionRunsMillis" value="60000" />        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->        <property name="minEvictableIdleTimeMillis" value="300000" />        <property name="validationQuery" value="SELECT ‘x‘" />        <property name="testWhileIdle" value="true" />        <property name="testOnBorrow" value="false" />        <property name="testOnReturn" value="false" />        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->        <property name="poolPreparedStatements" value="true" />        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />        <!-- 配置监控统计拦截的filters -->        <property name="filters" value="stat" />    </bean>    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->    <bean id="sqlSessionFactory2" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSourceSlave" />        <!-- 自动扫描mapping.xml文件 -->        <property name="mapperLocations" value="classpath:mybatis/*/*Mapper.xml"></property>        <!--自动扫描定义typeAliases类型-->        <property name="typeAliasesPackage" value="com.longebo.common.*"/>    </bean>    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.longebo.common.dao" />        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory2"></property>    </bean>    <bean id="sqlSessionSlave" class="org.mybatis.spring.SqlSessionTemplate" scope="prototype">        <constructor-arg index="0" ref="sqlSessionFactory2"/>    </bean>    <aop:config>        <aop:pointcut id="appService"                      expression="execution(* com.longebo.common.service..*Service*.*(..))"/>        <aop:advisor advice-ref="txAdvice2" pointcut-ref="appService"/>    </aop:config>    <tx:advice id="txAdvice2" transaction-manager="transactionManager2">        <tx:attributes>            <tx:method name="*" read-only="true"/>        </tx:attributes>    </tx:advice>    <!-- 注解式事物 -->    <tx:annotation-driven transaction-manager="transactionManager2" />    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->    <bean id="transactionManager2"          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSourceSlave" />    </bean></beans>

 <!--spring mvc-->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-aop</artifactId>            <version>${spring.version}</version>        </dependency>        <!-- 导入java ee jar基础包 -->        <dependency>            <groupId>javax</groupId>            <artifactId>javaee-api</artifactId>            <version>7.0</version>        </dependency>        <!-- 引入标签库 -->        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>jstl</artifactId>            <version>1.2</version>            <scope>runtime</scope>        </dependency>        <dependency>            <groupId>taglibs</groupId>            <artifactId>standard</artifactId>            <version>1.1.2</version>        </dependency>        <!-- 自定义标签库 -->        <dependency>            <groupId>javax.servlet.jsp</groupId>            <artifactId>jsp-api</artifactId>            <version>2.1</version>            <scope>provided</scope>        </dependency>

<?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"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd                        http://www.springframework.org/schema/context                        http://www.springframework.org/schema/context/spring-context-3.1.xsd                        http://www.springframework.org/schema/mvc                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">    <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->    <context:component-scan base-package="com.longebo.http.*" >        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>    </context:component-scan>    <!--    <mvc:annotation-driven /> 是一种简写形式，完全可以手动配置替代这种简写形式，简写形式可以让初学都快速应用默认配置方案。    <mvc:annotation-driven /> 会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,    是spring MVC为@Controllers分发请求所必须的。 并提供了：数据绑定支持，@NumberFormatannotation支持，@DateTimeFormat支持，    @Valid支持，读写XML的支持（JAXB），读写JSON的支持（Jackson）。后面，我们处理响应ajax请求时，就使用到了对json的支持。    后面，对action写JUnit单元测试时，要从spring IOC容器中取DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter    两个bean，来完成测试，取的时候要知道是<mvc:annotation-driven />这一句注册的这两个bean。     -->    <mvc:annotation-driven />    <!--  避免IE执行AJAX时，返回JSON出现下载文件-->       <bean id="mappingJacksonHttpMessageConverter"             class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">           <property name="supportedMediaTypes">               <list>                   <value>application/json;charset=UTF-8</value>                   <value>text/html;charset=UTF-8</value>               </list>           </property>       </bean>       <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->    <bean            class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">        <property name="messageConverters">            <list>                <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->            </list>        </property>    </bean>    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->        <property name="prefix" value="/WEB-INF/view/" />        <property name="suffix" value=".jsp" />    </bean>    <!-- 静态资源配置 -->   <mvc:resources mapping="/static/**" location="static/"/>    <!-- 拦截器配置 -->    <mvc:interceptors>        <mvc:interceptor>            <mvc:mapping path="/**"/>            <bean  class="com.longebo.http.interceptor.HttpInterceptor">                <!--是否开启longebo头部信息认证-->                <property name="islongeboAccess" value="true"/>                <property name="allowUrls">                    <list>                        <!-- 如果请求中包含以下路径，则不进行拦截 -->                        <value>/</value>                        <value>/static</value>                    </list>                </property>            </bean>        </mvc:interceptor>    </mvc:interceptors></beans>

 <!-- Spring和mybatis的配置文件 -->  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:applicationContext.xml</param-value>  </context-param>  <!-- 编码过滤器 -->  <filter>    <filter-name>encodingFilter</filter-name>    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>    <async-supported>true</async-supported>    <init-param>      <param-name>encoding</param-name>      <param-value>UTF-8</param-value>    </init-param>  </filter>  <filter-mapping>    <filter-name>encodingFilter</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>  <!-- 防止Spring内存溢出监听器,放在所有监听的最上面 -->  <listener>    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  </listener>  <!-- Spring监听器 -->  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <!-- Spring MVC servlet -->  <servlet>    <servlet-name>SpringMVC</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>/WEB-INF/spring-mvc.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>    <async-supported>true</async-supported>  </servlet>  <servlet>    <servlet-name>DruidStatView</servlet-name>    <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>  </servlet>  <servlet-mapping>    <servlet-name>SpringMVC</servlet-name>    <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->    <url-pattern>/</url-pattern>  </servlet-mapping>  <servlet-mapping>    <servlet-name>DruidStatView</servlet-name>    <url-pattern>/druid/*</url-pattern>  </servlet-mapping>  <welcome-file-list>    <welcome-file>/index.jsp</welcome-file>  </welcome-file-list>

package com.longebo.http.interceptor;import com.mysql.jdbc.StringUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class HttpInterceptor extends HandlerInterceptorAdapter {    public final static Logger logger= LoggerFactory.getLogger(HttpInterceptor.class);    //是否只能longebo用户访问:此处是的默认值为false,就是所有请求都可访问,如果spring-mvc.xml的过滤器配置参数为true,则此处被修改为true    private boolean islongeboAccess=false;    public void setIslongeboAccess(boolean islongeboAccess) {  this.islongeboAccess = islongeboAccess; }    private String[] allowUrls;    public void setAllowUrls(String[] allowUrls) {        this.allowUrls = allowUrls;    }    @Override    public boolean preHandle(HttpServletRequest request,                             HttpServletResponse response, Object handler) throws Exception {        response.setCharacterEncoding("UTF-8");        request.setCharacterEncoding("UTF-8");        //得到请求头Header中的参数User-Agent        String userAgent=request.getHeader("User-Agent");        //得到请求地址的相对路径        String requestUrl = request.getRequestURI().replace(request.getContextPath(), "");        //如果请求地址为"/",则不进行任何处理,可能会直接到下一个过滤器,ruturn 可以不要;        if("/".equals(requestUrl)){            System.out.println("测试 ‘/‘ 访问......");            return true;        }        if(!islongeboAccess){            //处理longebo用户的访问和非此用户的访问,比如做了一个移动端的APP, 分享后的访问不一定是App里面的请求,此时要做一些处理,ruturn 可以不要;            return true;        }        if(!StringUtils.isNullOrEmpty(userAgent)){            //对请求头进行处理,ruturn 可以不要;            return true;        }        //如果请求中包含以下路径，则不进行拦截        if(null != allowUrls && allowUrls.length>=1) {            for(String url : allowUrls) {                if(!"/".equals(url) && requestUrl.contains(url)) {                    return true;                }            }        }        logger.error("非longebo客户端访问",userAgent);        response.getWriter().write("Not Longebo");        return false;    }    @Override    public void postHandle(HttpServletRequest request,                           HttpServletResponse response, Object handler,                           ModelAndView modelAndView) throws Exception {    }    @Override    public void afterCompletion(HttpServletRequest request,                                HttpServletResponse response, Object handler, Exception ex)            throws Exception {    }}

<?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.longebo.common.dao.UserDao">    <resultMap id="result" type="com.longebo.common.entity.User">        <id property="userId" column="user_id"/>        <result property="userName" column="user_name"/>        <result property="passWord" column="password"/>    </resultMap>    <insert id="saveUser" parameterType="com.longebo.common.entity.User" useGeneratedKeys="true" keyProperty="userId">        INSERT  INTO  user (user_name        <if test="passWord!=null and passWord!=‘‘">            ,password        </if>        )        VALUES (#{userName}        <if test="passWord!=null and passWord!=‘‘">            ,#{passWord}        </if>        )    </insert>      <select id="findUserByUserName" parameterType="java.lang.String" resultMap="result">        SELECT  * FROM  user WHERE user_name=#{userName}    </select></mapper>

package com.longebo.http.controller;import com.longebo.common.entity.User;import com.longebo.common.service.UserSerivce;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.servlet.ModelAndView;@Controllerpublic class UserController {    @Autowired    private UserSerivce userSerivce;    /**     * 显示index.jsp页面     * @return     */    @RequestMapping(value = "/", method = {RequestMethod.POST, RequestMethod.GET})    public ModelAndView index() {        return new ModelAndView("index");    }    /**     * 登陆     * @return     */    @RequestMapping(value = "/login", method = {RequestMethod.POST})    @ResponseBody    public String login(User user) {       User user1= userSerivce.findUserByUserName(user.getUserName());        if(user1!=null&&user1.getPassWord().equals(user.getPassWord())){            return "success!";        }        return "fail!";    }    /**     * 注册     * @return     */    @RequestMapping(value = "/register", method = {RequestMethod.POST})    @ResponseBody    public String register(User user) {        try {          userSerivce.saveUser(user);            return "success!";        } catch (Exception e) {            return "fail!";        }    }}

package com.longebo.common.service;import com.longebo.common.entity.User;public interface UserSerivce {    /**     * 保存用户信息，自动设置保存对象的userid     * @param user     * @return     * @throws Exception     */    void saveUser(User user) throws Exception;    /**     * 根据用户id查询用户信息     * @param name     * @return     */    User findUserByUserName(String name);}

package com.longebo.common.service.impl;import com.longebo.common.dao.UserDao;import com.longebo.common.entity.User;import com.longebo.common.service.UserSerivce;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;@Servicepublic class UserSerivceImpl implements UserSerivce {    @Autowired    private UserDao userDao;    @Transactional    public void saveUser(User user) throws Exception {        userDao.save("saveUser",user);    }    public User findUserByUserName(String name) {        return userDao.selectOne("findUserByUserName",name);    }}

package com.longebo.common.entity;import com.longebo.common.basics.AbstractObject;public class User extends AbstractObject {    /** 用户Id */    private Integer userId;    /** 用户昵称 */    private String userName="";    /** 密码 */    private String passWord="";    public Integer getUserId() {        return userId;    }    public void setUserId(Integer userId) {        this.userId = userId;    }    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName;    }    public String getPassWord() {        return passWord;    }    public void setPassWord(String passWord) {        this.passWord = passWord;    }    @Override    public String toString() {        return "User{" +                "userId=" + userId +                ", userName=‘" + userName + ‘\‘‘ +                ", passWord=‘" + passWord + ‘\‘‘ +                ‘}‘;    }}

package com.longebo.common.dao;import org.mybatis.spring.SqlSessionTemplate;import org.springframework.stereotype.Service;import javax.annotation.Resource;import java.io.Serializable;import java.util.List;@Servicepublic abstract class BasicDao<T extends Serializable>{    protected SqlSessionTemplate writeMapper;    protected SqlSessionTemplate readMapper;    @Resource(name = "sqlSessionMaster")    private void setWriteMapper(SqlSessionTemplate sqlSession) {        this.writeMapper = sqlSession;    }    @Resource(name = "sqlSessionSlave")    private void setReadMapper(SqlSessionTemplate sqlSession) {        this.readMapper = sqlSession;    }    public T selectOne(String statement,T t){       return readMapper.selectOne(statement,t);    }    public <B,V> V selectOne(String statement,B b){        return readMapper.selectOne(statement,b);    }    public List<T> selectList(String statement){        return readMapper.selectList(statement);    }    public List<T> selectList(String statement,String t){        return readMapper.selectList(statement,t);    }    public <B,V>  List<V> selectList(String statement,B b){        return readMapper.selectList(statement,b);    }    public int save(String statement,T t) throws Exception{        return writeMapper.insert(statement , t);    }    public <B> int save(String statement,B b) throws Exception{        return writeMapper.insert(statement , b);    }    public int update(String statement,T t) throws Exception{        return writeMapper.update(statement , t);    }    public <B> int update(String statement,B  b) throws Exception{        return writeMapper.update(statement , b);    }}

package com.longebo.common.dao;import com.longebo.common.entity.User;import org.springframework.stereotype.Service;@Servicepublic class UserDao extends BasicDao<User> {}

package com.longebo.common.basics;import java.io.Serializable;/** * 抽象类，替代Object成为序列化对象 */public abstract class AbstractObject implements Serializable{}

<%@ page contentType="text/html;charset=UTF-8" language="java" %><html><head>    <title>index</title></head><body><h1>login</h1><form action="/register" method="post">    <input type="text" name="userName" value="http://www.mamicode.com/中国">    <input type="text" name="passWord" value="http://www.mamicode.com/123">    <button type="submit">register</button></form><form action="/login" method="post">    <input type="text" name="userName" value="http://www.mamicode.com/中国">    <input type="text" name="passWord" value="http://www.mamicode.com/123">    <button type="submit">login</button></form></body></html>