mybatis 和 springmvc 环境搭建 及mybatis 注解使用

web.xml

<?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" version="3.0">  <display-name>Archetype Created Web Application</display-name>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:spring-mybatis.xml</param-value>  </context-param>  <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>  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <listener>    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  </listener>  <servlet>    <servlet-name>SpringMVC</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:spring-mvc.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>    <async-supported>true</async-supported>  </servlet>  <servlet-mapping>    <servlet-name>SpringMVC</servlet-name>    <url-pattern>/</url-pattern>  </servlet-mapping>  <welcome-file-list>    <welcome-file>/login.jsp</welcome-file>  </welcome-file-list></web-app>

spring-mvc.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: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.sm.controller" /><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.MappingJacksonHttpMessageConverter"><property name="supportedMediaTypes"><list><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 --><beanclass="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="/" /><property name="suffix" value=".jsp" /></bean><!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 --><bean id="multipartResolver"          class="org.springframework.web.multipart.commons.CommonsMultipartResolver">          <!-- 默认编码 -->        <property name="defaultEncoding" value="utf-8" />          <!-- 文件大小最大值 -->        <property name="maxUploadSize" value="10485760000" />          <!-- 内存中的最大值 -->        <property name="maxInMemorySize" value="40960" />      </bean> <!-- 对静态资源文件的访问 方案二 （二选一） -->  <mvc:resources mapping="/resources/**" location="/resources/" /></beans>

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: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 --><context:component-scan base-package="com.sm" /><mvc:annotation-driven /><!-- 引入配置文件 --><bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location" value="classpath:jdbc.properties" /></bean><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close"><property name="driverClassName" value="${driver}" /><property name="url" value="${url}" /><property name="username" value="${username}" /><property name="password" value="${password}" /><!-- 初始化连接大小 --><property name="initialSize" value="${initialSize}"></property><!-- 连接池最大数量 --><property name="maxActive" value="${maxActive}"></property><!-- 连接池最大空闲 --><property name="maxIdle" value="${maxIdle}"></property><!-- 连接池最小空闲 --><property name="minIdle" value="${minIdle}"></property><!-- 获取连接最大等待时间 --><property name="maxWait" value="${maxWait}"></property></bean><!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><!-- 自动扫描mapping.xml文件<property name="mapperLocations" value="classpath:com/sm/mapping/*.xml"></property> --></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.sm.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/></bean><!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean></beans>

jdbc.properties

driver=com.mysql.jdbc.Driverurl=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8username=rootpassword=#\u5B9A\u4E49\u521D\u59CB\u8FDE\u63A5\u6570  initialSize=0  #\u5B9A\u4E49\u6700\u5927\u8FDE\u63A5\u6570  maxActive=20#\u5B9A\u4E49\u6700\u5927\u7A7A\u95F2  maxIdle=20#\u5B9A\u4E49\u6700\u5C0F\u7A7A\u95F2  minIdle=1#\u5B9A\u4E49\u6700\u957F\u7B49\u5F85\u65F6\u95F4  maxWait=60000

controller

package com.sm.controller;import java.util.List;import javax.servlet.http.HttpServletRequest;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.servlet.ModelAndView;import com.sm.dao.ClsDao;import com.sm.model.Cls;@Controller@RequestMapping("cls")public class ClsController {@Autowiredprivate ClsDao clsDao;/** * 获取班级列表 * @return */@RequestMapping(value = "/showcls" , method = RequestMethod.GET)public ModelAndView getCls(HttpServletRequest request) {ModelAndView modelAndView = new ModelAndView("main");List<Cls> cls =  clsDao.list();String mainPage="displayclass.jsp";request.setAttribute("list", cls);request.setAttribute("mainPage", mainPage);return modelAndView;}}

package com.sm.dao;import java.util.List;import org.apache.ibatis.annotations.Select;import com.sm.model.Cls;public interface ClsDao {@Select("select * from cls")public List<Cls> list();}

package com.sm.dao;import java.util.List;import org.apache.ibatis.annotations.Delete;import org.apache.ibatis.annotations.Insert;import org.apache.ibatis.annotations.Select;import org.apache.ibatis.annotations.Update;import org.springframework.stereotype.Repository;import com.sm.model.Student;@Repository("iStudentDao")public interface IStudentDao {@Insert("insert into student(name,sex,age,stel,sdept,saddress) values(#{name},#{sex},#{age},#{stel},#{sdept},#{sAddress})")public void addStudent(Student student);/** * 此处一定要和数据库的字段对应 * @return */@Select("select * from student")public List<Student> selectStudent();@Delete("delete from student where sid=#{id}")public void delete(int id);@Select("select * from student where sid=#{id}")public Student findStudentById(String id);@Update("update student set name=#{name},sex=#{sex},age=#{age},stel=#{stel},sdept=#{sdept},saddress=#{sAddress} where sid=#{sid}")public void updateStudent(Student stu);}

具体用法及完整项目看我的gitos

http://git.oschina.net/lookseaeveryday/studentManager