springMVC+ibatis数据持久化入门级学习例子

1.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">

    

    <servlet>

        <servlet-name>spring-mvc</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <init-param>

            <param-name>contextConfigLocation</param-name>

            <param-value>classpath:applicationContext.xml</param-value>

        </init-param>

    </servlet>

    

    <servlet-mapping>

        <servlet-name>spring-mvc</servlet-name>

        <url-pattern>*.do</url-pattern>

    </servlet-mapping>

</web-app>

2.application.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">



<beans>



    <bean id="handler" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

        <property name="mappings">

            <props>

                <prop key="test.do">testControllerAction</prop>

            </props>

        </property>

    </bean>

    

    <bean id="testControllerAction" class="org.ue.action.TestControllerAction">

        <property name="pageSize">

            <value>20</value>

        </property>

        <property name="successView">

            <value>list.jsp</value>

        </property>

    </bean>

    

    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

        <property name="location">

            <value>classpath:db-properties.properties</value>

        </property>

    </bean>

    <bean id="ds" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

        <property name="driverClassName">

            <value>${jdbc.driverClassName}</value>

        </property>

        <property name="url">

            <value>${jdbc.url}</value>

        </property>

        <property name="username">

            <value>${jdbc.username}</value>

        </property>

        <property name="password">

            <value>${jdbc.password}</value>

        </property>

    </bean>

    

    <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">

        <property name="configLocation">

            <value>classpath:sqlmap-config.xml</value>

        </property>

    </bean>

    

    <bean id="studentDao" class="org.ue.dao.impl.StudentDaoImpl">

        <property name="dataSource" ref="ds"></property>

        <property name="sqlMapClient" ref="sqlMapClient"></property>

    </bean>

    

</beans>

3.db-properties.properties

jdbc.driverClassName=com.mysql.jdbc.Driver

jdbc.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf-8

jdbc.username=test

jdbc.password=test

4.sqlmap-config.xml

<?xml version='1.0' encoding='UTF-8'?>

<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN" "http://www.ibatis.com/dtd/sql-map-config-2.dtd">

<sqlMapConfig>

    <settings cacheModelsEnabled="true" enhancementEnabled="true"

        lazyLoadingEnabled="true" errorTracingEnabled="true" maxRequests="32"

        maxSessions="10" maxTransactions="5" useStatementNamespaces="false" />



    <!--

        Identify all SQL Map XML files to be loaded by this SQL map. 

        Notice the paths are relative to the classpath.

    -->

    <sqlMap resource="sqlmap-test.xml" />



</sqlMapConfig>

 

5.sqlmap-test.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE sqlMap

    PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN"

    "http://www.ibatis.com/dtd/sql-map-2.dtd">



<sqlMap namespace="ts">

    <typeAlias alias="stu" type="org.ue.po.Student" />

    

    <select id="listStu" resultClass="stu">

        select id, name from tbl_student

    </select>

</sqlMap>

 

6.Action

public class TestControllerAction implements Controller {

    

    private String successView;

    private String pageSize;

    /* (non-Javadoc)

     * @see org.springframework.web.servlet.mvc.Controller#handleRequest(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

     */

    public ModelAndView handleRequest(HttpServletRequest request,

            HttpServletResponse response) throws Exception {

        // TODO Auto-generated method stub

        System.out.println("---pageSize---" + pageSize);

        request.setAttribute("pageSize", pageSize);

        return new ModelAndView(successView);

    }

    

    public String getPageSize() {

        return pageSize;

    }

    public void setPageSize(String pageSize) {

        this.pageSize = pageSize;

    }

    public String getSuccessView() {

        return successView;

    }

    public void setSuccessView(String successView) {

        this.successView = successView;

    }

    

    

}

 

7.dao

public interface StudentDao {

    public List getStudent() throws Exception;

}

public class StudentDaoImpl extends SqlMapClientDaoSupport implements StudentDao {



    /* (non-Javadoc)

     * @see org.ue.dao.StudentDao#getStudent()

     */

    public List getStudent() throws Exception{

        // TODO Auto-generated method stub

        return getSqlMapClientTemplate().queryForList("listStu",null);

    }



}

 

8.po

public class Student {

    private int id;

    private String name;

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    

}

 

9.list.jsp

<html>

  <head>

    <base href="<%=basePath%>">

    

    <title>My JSP 'list.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">

    <!--

    <link rel="stylesheet" type="text/css" href="styles.css">

    -->

    

    <%

        String pageSize = (String)request.getAttribute("pageSize");

        out.println("pageSize:" + pageSize);

     %>

  </head>

  

  <body>

    This is my JSP page. <br>

    <%

        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");

            //DataSource ds = (DataSource) ac.getBean("ds");

            //System.out.println(ds.getConnection().getMetaData().getDriverName());

            

            StudentDao studentDao = (StudentDao) ac.getBean("studentDao");

            List ls = studentDao.getStudent();

            for (int i = 0; i < ls.size(); i++) {

                Student stu = (Student)ls.get(i);

                out.println("<strong>--id--"+stu.getId()+"--name--"+stu.getName()+"</strong><br/>");

            }

     %>

  </body>

</html>

10.数据库脚本test.tbl_student

create database if not exists `test`;



USE `test`;



/*数据表 `tbl_student` 的表结构*/



CREATE TABLE `tbl_student` (

  `id` int(11) NOT NULL auto_increment,

  `name` varchar(20) default NULL,

  PRIMARY KEY  (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;



/*数据表 `tbl_student` 的数据*/



insert into `tbl_student` values (1,'hnhj');

insert into `tbl_student` values (2,'zndx');

insert into `tbl_student` values (3,'steve');

insert into `tbl_student` values (4,'china');