1,创建web工程
2,导入jar包
3,创建User数据库
4.编写实体类pojo
package cn.ssm.pojo;
public class User {
private int id;
private String userName;
private String pwd;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}
dao层
UserMapper.xml
<?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="cn.ssm.dao.UserMapper">
<select id="getUser" resultType="cn.ssm.pojo.User" parameterType="cn.ssm.pojo.User">
<![CDATA[
select * from user where id=#{id}
]]>
</select>
<select id="getUserList" resultType="cn.ssm.pojo.User">
<![CDATA[
select * from user
]]>
</select>
<insert id="saveUser" parameterType="cn.ssm.pojo.User">
<![CDATA[
insert into user(userName,pwd)
values(#{userName},#{pwd})
]]>
</insert>
<delete id="deleteUser" parameterType="cn.ssm.pojo.User">
<![CDATA[
delete from user where id=#{id}
]]>
</delete>
<update id="updateUser" parameterType="cn.ssm.pojo.User">
<![CDATA[
update user set userName=#{userName},
pwd=#{pwd} where id=#{id}
]]>
</update>
</mapper>
UserMapper
package cn.ssm.dao;
import java.util.List;
import cn.ssm.pojo.User;
public interface UserMapper {
public void add(User user);
public void delete(User user);
public void Update(User user);
public List<User> getUserList();
public User getUser(User user);
}
daoImpl
package cn.ssm.dao.impl;
import java.util.List;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.support.SqlSessionDaoSupport;
import cn.ssm.dao.UserMapper;
import cn.ssm.pojo.User;
public class UserDaoImpl extends SqlSessionDaoSupport implements UserMapper{
private static final String NAMESPACE = "cn.ssm.dao.UserMapper.";
public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory)
{
super.setSqlSessionFactory(sqlSessionFactory);
}
@Override
public void add(User user) {
// TODO Auto-generated method stub
getSqlSession().insert(NAMESPACE + "saveUser",user);
}
@Override
public void delete(User user) {
// TODO Auto-generated method stub
getSqlSession().delete(NAMESPACE + "deleteUser",user);
}
@Override
public void Update(User user) {
// TODO Auto-generated method stub
getSqlSession().update(NAMESPACE + "updateUser",user);
}
@Override
public List<User> getUserList() {
// TODO Auto-generated method stub
return getSqlSession().selectList(NAMESPACE + "getUserList");
}
@Override
public User getUser(User user) {
// TODO Auto-generated method stub
return getSqlSession().selectOne(NAMESPACE + "getUser",user);
}
}
Service层
iService
package cn.ssm.service;
import java.util.List;
import cn.ssm.pojo.User;
public interface IService {
public void add(User user);
public void delete(User user);
public void Update(User user);
public List<User> getUserList();
public User getUser(User user);
}
iServiceImpl
package cn.ssm.service.impl;
import java.util.ArrayList;
import java.util.List;
import cn.ssm.dao.UserMapper;
import cn.ssm.pojo.User;
import cn.ssm.service.IService;
public class IServiceImpl implements IService{
private UserMapper userMapper;
public UserMapper getUserMapper() {
return userMapper;
}
public void setUserMapper(UserMapper userMapper) {
this.userMapper = userMapper;
}
@Override
public void add(User user) {
// TODO Auto-generated method stub
userMapper.add(user);
}
@Override
public void delete(User user) {
// TODO Auto-generated method stub
userMapper.delete(user);
}
@Override
public void Update(User user) {
// TODO Auto-generated method stub
userMapper.Update(user);
}
@Override
public List<User> getUserList() {
// TODO Auto-generated method stub
List<User> list= new ArrayList<User>();
list=userMapper.getUserList();
return list;
}
@Override
public User getUser(User user) {
// TODO Auto-generated method stub
return userMapper.getUser(user);
}
}
controller
UserController
package cn.ssm.controller;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import cn.ssm.pojo.User;
import cn.ssm.service.IService;
@Controller
//@RequestMapping("/user")
public class UserController {
//@Autowired
//Qualifier 指定某个service注入
@Resource
@Qualifier("userMapperService")
private IService i;
private User user;
private List<User> list = new ArrayList<User>();
//根据ID查看
@RequestMapping(value="/view",method=RequestMethod.GET)
public String view(HttpServletRequest request,Model model){
int id= Integer.parseInt(request.getParameter("id"));
user=new User();
user.setId(id);
user=i.getUser(user);
model.addAttribute("user",user);
return "view";
}
//列表查看
@RequestMapping(value="/userList",method=RequestMethod.GET)
public String list(Model model){
list=i.getUserList();
model.addAttribute("list",list);
return "userList";
}
//添加界面
@RequestMapping(value="/saveView",method=RequestMethod.GET)
public String saveView(@ModelAttribute("user") User user){
return "saveView";
}
//添加操作
@RequestMapping(value="/saveOper",method=RequestMethod.POST)
public String saveOper(User user){
i.add(user);
return "redirect:/userList";
}
//删除操作
@RequestMapping(value="/delete",method=RequestMethod.GET)
public String delete(HttpServletRequest request){
int id= Integer.parseInt(request.getParameter("id"));
user=new User();
user.setId(id);
i.delete(user);
return "redirect:/userList";
}
//修改界面
@RequestMapping(value="/updateView",method=RequestMethod.GET)
public String updateView(Model model,HttpServletRequest request){
int id= Integer.parseInt(request.getParameter("id"));
user=new User();
user.setId(id);
user=i.getUser(user);
model.addAttribute("user",user);
return "updateView";
}
//修改操作
@RequestMapping(value="/updateOper",method=RequestMethod.POST)
public String updateOper(User user){
i.Update(user);
return "redirect:/userList";
}
public List<User> getList() {
return list;
}
public void setList(List<User> list) {
this.list = list;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public IService getI() {
return i;
}
public void setI(IService i) {
this.i = i;
}
}
6,配置文件
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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>SSM</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 设置Spring容器加载所有的配置文件的路径 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<!-- 配置SpringMVC核心控制器 -->
<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>
<!-- 启动加载一次 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!--为DispatcherServlet建立映射 -->
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- 解决工程编码过滤器 -->
<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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
jdbc.properties
jdbcUrl=jdbc:mysql://127.0.0.1/lkx-ssm?characterEncoding=UTF-8
driverClass=com.mysql.jdbc.Driver
user=root
password=970307
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 实体类的别名,写了之后可以在写Sql配置文件例如<select>标签中的属性就可以不用写实体的具体路径直接用别名 -->
<typeAliases>
<typeAlias type="cn.ssm.pojo.User" alias="User"/>
<!--..... -->
<!-- <package name="cn.ssm.pojo"/> -->
</typeAliases>
</configuration>
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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-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/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<!-- 自动扫描 -->
<context:component-scan base-package="cn.ssm"></context:component-scan>
<!-- 配置数据源 -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbcUrl}"></property>
<property name="driverClass" value="${driverClass}"></property>
<property name="user" value="${user}"></property>
<property name="password" value="${password}"></property>
</bean>
<!-- 创建sqlSessionFactory,生成sqlSession -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:cn/ssm/dao/*.xml"></property>
</bean>
<!-- 配置sqlSessionTemplate -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<!-- spring 使用构造器 进行注入-->
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>
</bean>
<!-- 把sqlSessionTemplate注入到测试类,进行测试 -->
<bean id="daoTest" class="cn.ssm.test.daoTest">
<property name="sqlSessionTemplate" ref="sqlSessionTemplate"></property>
</bean>
<!-- 配置mybatis接口代理开发
* 接口类名和映射文件必须同名
* 接口类和映射文件必须在同一个目录 下
* 映射文件namespace名字必须是接口的全类路径名
* 接口的方法名必须和映射Statement的id一致
-->
<!-- dao层注入 -->
<bean id="userMapper" class="cn.ssm.dao.impl.UserDaoImpl">
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
<!-- service层注入 -->
<bean id="userMapperService" class="cn.ssm.service.impl.IServiceImpl">
<property name="userMapper" ref="userMapper"></property>
</bean>
<!-- controller注入 -->
<bean id="userController" class="cn.ssm.controller.UserController">
<property name="i" ref="userMapperService"></property>
<property name="user">
<bean class="cn.ssm.pojo.User"></bean>
</property>
</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>
spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.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="cn.ssm.controller" />
<mvc:annotation-driven/>
<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="/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
7, JSP
userList.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>----UserList----</h1><br/>
<a href="saveView">添加</a>
<table border="1">
<tr>
<td>id</td>
<td>name</td>
<td>操作</td>
</tr>
<c:forEach var="ul" items="${list}">
<tr>
<td>${ul.id }</td>
<td><a href="view?id=${ul.id}">${ul.userName }</a></td>
<td>
<a href="delete?id=${ul.id}">删除</a>
<a href="updateView?id=${ul.id }">修改</a>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
view.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ taglib prefix="f" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>----View----</h1><br/>
ID:${user.id }<br/>
NAME:${user.userName }<br/>
PWD:${user.pwd}
</body>
</html>
saveView.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ taglib prefix="f" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>----SAVE----</h1><br/>
<f:form method="post" action="saveOper" modelAttribute="user" >
NAME:<f:input path="userName"/>
PWD:<f:input path="pwd"/>
<input type="submit" value="保存"/>
</f:form>
</body>
</html>
updateView.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<h1>----updateView----</h1><br/>
<form action="updateOper" method="post">
ID:<input name="id" value="${user.id }" readonly="readonly"/><br/>
NAME:<input name="userName" value="${user.userName }"/><br/>
PWD:<input name="pwd" value="${user.pwd }"/><br/>
<input type="submit" value="保存"/>
</form>
</body>
</html>