框架如圖：

web.xml文件代碼

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><!-- 1.spring監聽 --><context-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/spring-mybatis.xml</param-value></context-param><!--spring--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 2.springmvc --><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></servlet><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!-- 3.字符編碼處理 --><filter> <filter-name>encodingFilter</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>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
spring-mvc.xml代碼

<?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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd "> <!-- 默認掃描包路徑，掃描控制器 --><context:component-scan base-package="com.controller"></context:component-scan><!-- 注解驅動 --><mvc:annotation-driven/><!-- 視圖解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/" /> <property name="suffix" value=".jsp" /> </bean> </beans>
spring-mybatis.xml代碼

<?xml version="1.0" encoding="UTF-8"?> <beansxmlns="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.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd"><!-- 1.自動掃描 --><context:component-scan base-package="com"></context:component-scan><!-- 2.配置數據源，就是原來mybatis的代碼,此處使用dbcp數據源連接池 --><bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource"><property name="driverClassName" value="oracle.jdbc.OracleDriver"/><property name="url" value="jdbc:oracle:thin:@192.168.62.250:1521:orcl"/><property name="username" value="scott"/><property name="password" value="tiger"/></bean><!-- 3.配置sqlSessionFactory --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="datasource"/><!-- 數據源連接池 --><property name="mapperLocations" value="classpath:com/mapper/*.xml"></property></bean><!-- 4.mapper掃描器 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.dao"/><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/></bean> </beans>
src下框架各個包中的代碼實現；

實體類，Emp類

package com.entity;public class Emp {private int empNo;private String eName;private String salary;public int getEmpNo() {return empNo;}public void setEmpNo(int empNo) {this.empNo = empNo;}public String geteName() {return eName;}public void seteName(String eName) {this.eName = eName;}public String getSalary() {return salary;}public void setSalary(String salary) {this.salary = salary;}}
EmpDao接口

package com.dao;import java.util.List; import java.util.Map; import com.entity.Emp;public interface EmpDao {public List<Emp> search(); }
mapper.xml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.dao.EmpDao"><select id="search" resultType="com.entity.Emp">select empno ,ename , sal from emp</select> </mapper>
Service接口

package com.service;import java.util.List;import com.entity.Emp;public interface IEmpService {List<Emp> getList();}
Service接口的實現類

package com.service.impl;import java.util.List;import javax.annotation.Resource; import org.springframework.stereotype.Component; import com.dao.EmpDao; import com.entity.Emp; import com.service.IEmpService;@Component public class EmpServiceImpl implements IEmpService{@Resourceprivate EmpDao empDao;public List<Emp> getList() {return empDao.search();}}
控制器代碼實現：

package com.controller;import java.util.List; import javax.annotation.Resource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import com.entity.Emp; import com.service.IEmpService; @Controller @RequestMapping("/emp") public class EmpController {@Resourceprivate IEmpService service;@RequestMapping("/list")public String toIndex(Model model){List<Emp> emps=service.getList();System.out.println(emps.size()+".......");model.addAttribute("eno", emps.size());model.addAttribute("empList", emps);return "list";}} 視圖層頁面代碼如下：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"></head><body>ddd${eno }<c:forEach items="${empList}" var="emp">${emp.eName} <br/></c:forEach></body> </html>

顯示結果是oracle中實例表,Emp表中的數據顯示在頁面。

總結

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