二、数据库设计.
三、POJO类.
四、pojo类配置文件编写
五、ibatis主配置文件编写【主配置文件只剩下sqlMap了】
六、dao接口和接口实现
七、service接口和接口实现
八、struts action实现及struts-config.xml配置
九、spring配置文件的内容【牵扯到ibatis和struts的整合】
十、测试
一、新建工程,添加ibatis、spring和struts的jars;
二、数据库设计.
mysql数据库:
- use ibatis;
- drop table if exists user;
- create table if not exists user(
- ID tinyint primary key auto_increment,
- LOGIN_NAME varchar(10) not null,
- PASS_WORD varchar(15) not null,
- QX varchar(10) default 'guest' not null ,
- MEMO text
- )
- type=innodb
- comment="user info";
- insert into user(LOGIN_NAME,PASS_WORD,QX) values('leh','888','admin');
- insert into user(LOGIN_NAME,PASS_WORD) values('lek','888');
- commit;
数据源的配置
1)、配置文件db.properties (位置:resources/properties/db.properties,这里resources和src是一类文件)
- driver=com.mysql.jdbc.Driver
- url=jdbc\:mysql\://localhost\:3306/ibatis
- username=root
- password=54321
2)、注册数据源到spring
- !-- spring load dataSource configuration property file -->
- <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
- <property name="locations">
- <list>
- <value>properties/database.properties</value>
- </list>
- </property>
- </bean>
- <!-- dataSource -->
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
- <property name="driverClassName" value="${driver}" />
- <property name="url" value="${url}" />
- <property name="username" value="${username}" />
- <property name="password" value="${password}" />
- </bean>
三、POJO类.
本例是User实例类:
- package com.leadtone.ibatis.domain;
- import java.io.Serializable;
- public class User implements Serializable{
- private int id;
- private String name;
- private String password;
- private String qx;
- private String memo;
- public int getId() {
- return id;
- }
- /**
- *setter和getter方法省略
- */
四、pojo类配置文件编写
本例是User.xml:(位置:com.leadtone.sqlmap.User.xml)
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE sqlMap
- PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
- "http://ibatis.apache.org/dtd/sql-map-2.dtd">
- <sqlMap namespace="User">
- <typeAlias alias="user" type="com.leadtone.ibatis.domain.User"/>
- <resultMap class="user" id="UserResult">
- <result property="id" column="ID"/>
- <result property="name" column="LOGIN_NAME"/>
- <result property="password" column="PASS_WORD"/>
- <result property="qx" column="QX"/>
- <result property="memo" column="MEMO"/>
- </resultMap>
- <!-- query all Users -->
- <select id="selectAllUsers" resultMap="UserResult">
- select * from user
- </select>
- <!-- query user by id -->
- <select id="selectUserById" parameterClass="int" resultMap="UserResult">
- select ID,LOGIN_NAME,PASS_WORD,QX,MEMO from user where ID=#id#
- </select>
- <!-- query user by user -->
- <select id="selectUserByUser2" parameterClass="map" resultMap="UserResult">
- select ID,LOGIN_NAME,PASS_WORD,QX,MEMO
- from user
- <dynamic prepend="where">
- <isNotEmpty prepend="and" property="name">
- LOGIN_NAME=#name#
- </isNotEmpty>
- <isNotEmpty prepend="and" property="password">
- PASS_WORD=#password#
- </isNotEmpty>
- </dynamic>
- </select>
- <select id="selectUserByUser" parameterClass="user" resultMap="UserResult">
- select ID,LOGIN_NAME,PASS_WORD,QX,MEMO
- from user
- <dynamic prepend="where">
- <isNotEmpty prepend="and" property="name">
- LOGIN_NAME=#name#
- </isNotEmpty>
- <isNotEmpty prepend="and" property="password">
- PASS_WORD=#password#
- </isNotEmpty>
- </dynamic>
- </select>
- <select id="selectUsersByName" parameterClass="String" resultMap="UserResult">
- select ID,LOGIN_NAME,PASS_WORD,QX,MEMO
- from user
- <dynamic prepend="where">
- <isNotEmpty prepend="and" property="value">
- sname like '%$value$%'
- </isNotEmpty>
- </dynamic>
- </select>
- <!--
- <insert id="addUser" parameterClass="User">
- insert into user(LOGIN_NAME,PASS_WORD,QX,MEMO )
- values(#name#,#birth#,#score#)
- <selectKey keyProperty="id" resultClass="int">
- select last_insert_id()
- </selectKey>
- </insert>
- <!-- 注意这里的keyProperty="id" 中的id就是User中的id属性,resultClass就是查询的的返回值 -->
- -->
- <update id="updateUser" parameterClass="User">
- update user set LOGIN_NAME=#name#,PASS_WORD=#password#,QX=#qx#,memo=#memo# where ID=#id#
- </update>
- <delete id="deleteUser" parameterClass="int">
- delete from user where ID=#id#
- </delete>
- </sqlMap>
【补充:】动态sql:
一般来说,拼接动态sql是在查询时,指定多个查询条件的情况下用的,所以用到parameterClass= (map或具体类),
但对于传递过来的参数就一个时,若如下代码就会出错:
- <select id="selectUserById" parameterClass="int" resultMap="UserResult">
- select sid,sname,smajor,sbirth,score from users
- <dynamic prepend="where">
- <isNotEmpty prepend="and" property="id">
- sid=#id#
- </isNotEmpty>
- </dynamic>
- </select>
会报错误如下:There is no READABLE property named 'id' in class 'java.lang.Integer'
因为你无缘故用了一个莫名其妙的property="id",id对ibatis来说不认识。
这时的解决办法有两种,一个是这里的property="id" 中的id用value来代替,所以下面的sid=#value#,这个value是ibatis内部指定个变量;另一个方法是直接把property="id"删除,不用property这个属性了。
五、ibatis主配置文件编写【主配置文件只剩下sqlMap了,事务和数据源都交给spring进行配置和管理】
本例为sql-map-config.xml:(位置:)
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE sqlMapConfig
- PUBLIC "-//ibatis.apache.org//DTD SQL Map Config 2.0//EN"
- "<a href="http://ibatis.apache.org/dtd/sql-map-config-2.dtd">http://ibatis.apache.org/dtd/sql-map-config-2.dtd</a>">
- <sqlMapConfig>
- <sqlMap resource="com/leadtone/ibatis/sqlmap/User.xml"/>
- <!--
- <sqlMap resource="com/leadtone/ibatis/sqlmap/User1.xml"/>
- <sqlMap resource="com/leadtone/ibatis/sqlmap/User2.xml"/>
- <sqlMap resource="com/leadtone/ibatis/sqlmap/Usern.xml"/>
- -->
- </sqlMapConfig>
六、dao接口和接口实现
1)、本例为UserDao:
- package com.leadtone.ibatis.dao;
- import java.util.List;
- import com.leadtone.ibatis.domain.User;
- public interface IUserDao {
- public List<User> queryAllUsers();
- public User queryUserById(int id);
- public User queryUserByUser(User user);
- public List<User> queryUserByName(String name);
- public void addUser(User user);
- public void addUserBySequence(User user);
- public void updateUser(User user);
- public void deleteUser(int id);
- }
2)、实现类UserDaoImpl:
- package com.leadtone.ibatis.dao.ibatis;
- import java.util.List;
- import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
- import com.leadtone.ibatis.dao.IUserDao;
- import com.leadtone.ibatis.domain.User;
- public class UserDaoImpl extends SqlMapClientDaoSupport implements IUserDao {
- //注意这里的SqlMapClient接口的声明和下面的static静态代码都不需要了,
- // 因为这里继承了spring提供的ibatis模板template类SqlMapClientDaoSupport,不是用原生的SqlMapClient
- //private static SqlMapClient sqlMapClient=null;
- /*
- static{
- Reader reader=null;
- try {
- reader=Resources.getResourceAsReader("com/leadtone/ibatis/sqlmap/SqlMapConfig.xml");
- sqlMapClient=SqlMapClientBuilder.buildSqlMapClient(reader);
- reader.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- */
- public void addUser(User user) {
- getSqlMapClientTemplate().insert("addUser", user);
- }
- public User queryUserByUser(User user) {
- System.out.println("---UserDaoImpl---");
- return (User) this.getSqlMapClientTemplate().queryForObject("selectUserByUser", user);
- }
- /*
- * 这里主要演示一个模拟用户登录系统验证的操作,主要用了queryUserByUser(User user)方法
- */
- }
3)、在spring配置文件中配置这个bean
- <!--sqlMapClient -->
- <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
- <property name="configLocation" value="sqlmap/sql-map-config.xml"/>
- <property name="dataSource" ref="dataSource" />
- </bean>
- <!-- validate loginUser -->
- <!-- dao -->
- <bean id="userDao" class="com.leadtone.ibatis.dao.ibatis.UserDaoImpl">
- <property name="sqlMapClient" ref="<span style="color: #000000;">sqlMapClient </span>"></property>
- </bean>
七、service接口和接口实现
1)IUserLoginService接口
- package com.leadtone.ibatis.service;
- import com.leadtone.ibatis.domain.User;
- public interface IUserLoginService {
- public boolean isLoginUser(User user);
- }
2)UserLoginSerivceImpl实现类
- package com.leadtone.ibatis.service.impl;
- import com.leadtone.ibatis.dao.IUserDao;
- import com.leadtone.ibatis.domain.User;
- import com.leadtone.ibatis.service.IUserLoginService;
- public class UserLoginServiceImpl implements IUserLoginService {
- private IUserDao userDao;
- public IUserDao getUserDao() {
- return userDao;
- }
- public void setUserDao(IUserDao userDao) {
- this.userDao = userDao;
- }
- public boolean isLoginUser(User user) {
- return null!=userDao.queryUserByUser(user)?true:false;
- }
- }
3)在spring中注册这个bean
- <!-- service -->
- <bean id="userLoginService" class="com.leadtone.ibatis.service.impl.UserLoginServiceImpl">
- <property name="userDao" ref="userDao"></property>
- </bean>
八、struts action实现及struts-config.xml配置(牵扯到struts和spring的整合)
1)action:
- package com.leadtone.web.struts.action;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import org.apache.struts.action.Action;
- import org.apache.struts.action.ActionForm;
- import org.apache.struts.action.ActionForward;
- import org.apache.struts.action.ActionMapping;
- import com.leadtone.ibatis.domain.User;
- import com.leadtone.ibatis.service.IUserLoginService;
- import com.leadtone.web.struts.form.LoginForm;
- public class LoginAction extends Action {
- private IUserLoginService userLoginService;
- public IUserLoginService getUserLoginService() {
- return userLoginService;
- }
- public void setUserLoginService(IUserLoginService userLoginService) {
- this.userLoginService = userLoginService;
- }
- public ActionForward execute(ActionMapping mapping, ActionForm form,
- HttpServletRequest request, HttpServletResponse response) {
- LoginForm loginForm = (LoginForm) form;
- String name=loginForm.getUsername();
- String password=loginForm.getPassword();
- User user=new User();
- user.setName(name);
- user.setPassword(password);
- boolean isLogin=false;
- isLogin = userLoginService.isLoginUser(user);
- System.out.println(isLogin);
- if(isLogin){
- request.setAttribute("username", name);
- return mapping.findForward("success");
- }
- else
- return mapping.findForward("failure");
- }
- }
2)actionForm:
- public class LoginForm extends ActionForm {
- private String username;
- private String password;
- private String grade;
- public ActionErrors validate(ActionMapping mapping,
- HttpServletRequest request) {
- return null;
- }
- public void reset(ActionMapping mapping, HttpServletRequest request) {
- }
- public String getPassword() {
- return password;
- }
- public void setPassword(String password) {
- this.password = password;
- }
- public String getGrade() {
- return grade;
- }
- public void setGrade(String grade) {
- this.grade = grade;
- }
- public String getUsername() {
- return username;
- }
- public void setUsername(String username) {
- this.username = username;
- }
- }
3)xml:
- <struts-config>
- <data-sources />
- <form-beans >
- <form-bean name="loginForm" type="com.leadtone.web.struts.form.LoginForm" />
- </form-beans>
- <global-exceptions />
- <global-forwards />
- <action-mappings >
- <action
- attribute="loginForm"
- input="/login.jsp"
- name="loginForm"
- path="/login"
- scope="request"
- type="org.springframework.web.struts.DelegatingActionProxy">
- <forward name="failure" path="/failure.jsp" />
- <forward name="success" path="/succ.jsp" />
- </action>
- </action-mappings>
- <controller processorClass="org.springframework.web.struts.DelegatingRequestProcessor"></controller>
- <message-resources parameter="com.leadtone.web.struts.ApplicationResources" />
- <plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
- <set-property property="contextConfigLocation" value="classpath:applicationContext.xml" />
- </plug-in>
- </struts-config>
4)页面:
login.jsp
- <body >
- <center>
- <html:form action="${Pagecontext.request.contextPath}/login" method="post">
- <table border="1px" cellspacing="1px" cellpadding="1px" >
- <tr>
- <td>username : </td>
- <td><html:text property="username"/></td>
- <td><html:errors property="username"/></td>
- </tr>
- <tr>
- <td>password : </td>
- <td><html:password property="password"/></td>
- <td><html:errors property="password"/></td>
- </tr>
- <tr>
- <td>grade: </td>
- <td> <html:select property="grade">
- <html:option value="guest">guest</html:option>
- <html:option value="admin">admin</html:option>
- </html:select>
- </td>
- <td><html:errors property="grade"/></td>
- </tr>
- <tr >
- <td colspan="3" valign="middle" align="center"><html:submit/> <html:cancel/></td>
- </tr>
- </table>
- </html:form>
- </center>
- </body>
succ.jsp
- <body>
- welcome ${username}, <br>
- login successfully!
- </body>
falure.jsp
- <body>
- sorry,login error<a href="login.jsp">relogin</a>
- </body>
5)web.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
- <servlet>
- <servlet-name>action</servlet-name>
- <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
- <init-param>
- <param-name>config</param-name>
- <param-value>/WEB-INF/struts-config.xml</param-value>
- </init-param>
- <init-param>
- <param-name>debug</param-name>
- <param-value>3</param-value>
- </init-param>
- <init-param>
- <param-name>detail</param-name>
- <param-value>3</param-value>
- </init-param>
- <load-on-startup>0</load-on-startup>
- </servlet>
- <servlet-mapping>
- <servlet-name>action</servlet-name>
- <url-pattern>*.do</url-pattern>
- </servlet-mapping>
- <welcome-file-list>
- <welcome-file>login.jsp</welcome-file>
- </welcome-file-list>
- </web-app>
九、spring配置文件的内容【牵扯到ibatis和struts的整合】
- <!-- action -->
- <bean name="/login" class="com.leadtone.web.struts.action.LoginAction" abstract="false"
- lazy-init="default" autowire="default" dependency-check="default">
- <property name="userLoginService" ref="userLoginService"></property>
- </bean>
十、测试
这里的测试 包括单元测试。例如对dao层、service层、action层编写完成后都要进行junit4单元测试(Jmock或easyMock等)测试,这里就不添加了。