使用springmvc註解的形式 整合mybatis 使用mysql數據庫 實現一個註冊和登錄的小例子
一,所需要的jar包
二,web.xml的配置文件
<?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">
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<!-- 可以修改spring-servlet的路徑 默認在web-inf下面 使用默認的時候可以不寫-->
<!-- <init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value> 默認
</init-param> -->
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 攔截.action的請求 -->
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- spring的配置 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 指定加載spring的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext*.xml</param-value>
</context-param>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
三,web-inf下面spring-servlet.xml的配置
<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">
<!-- 啓動spring mvc的註解 -->
<context:annotation-config/>
<!-- 設置使用註解的類所在的jar包 -->
<context:component-scan base-package="com.demo"/>
<!-- 對轉向頁面的路徑解析。prefix:前綴, suffix:後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"p:prefix="/" p:suffix=".jsp" />
</beans>
四,applicationContext.xml的配置
<?xml version="1.0" encoding="UTF-8"?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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/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
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- 加載jdbc的配置文件 -->
<context:property-placeholder location="classpath:jdbc-mysql.properties" />
<!-- com.demo包下面的類標記spring註解的類自動轉化Bean 同時完成Bean的注入 -->
<context:component-scan base-package="com.demo" />
<!-- 配置數據源DataSource -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass">
<value>${jdbc.driverClassName}</value>
</property>
<property name="jdbcUrl">
<value>${jdbc.url}</value>
</property>
<property name="user">
<value>${jdbc.username}</value>
</property>
<property name="password">
<value>${jdbc.password}</value>
</property>
<property name="maxPoolSize">
<value>${jdbc.maxPoolSize}</value>
</property>
<property name="minPoolSize">
<value>${jdbc.minPoolSize}</value>
</property>
<property name="initialPoolSize">
<value>${jdbc.initialPoolSize}</value>
</property>
<property name="idleConnectionTestPeriod">
<value>${jdbc.idleConnectionTestPeriod}
</value>
</property>
<property name="maxIdleTime">
<value>${jdbc.maxIdleTime}</value>
</property>
</bean>
<!-- 配置mybitasSqlSessionFactoryBean -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="classpath:mybatis.xml"></property>
</bean>
<!-- 配置SqlSessionTemplate -->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" />
</bean>
<!-- 事務配置 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 使用annotation註解方式配置事務 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
五,mybatis.xml配置文件
<?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>
<!-- 取別名 -->
<typeAliases>
<typeAlias type="com.demo.pojo.Shop" alias="shop"/>
</typeAliases>
<!-- 映射配置文件 -->
<mappers>
<mapper resource="com/demo/persistence/ShopMapper.xml"/>
</mappers>
</configuration>
六 ,連接數據源的jdbc-mysql.properties配置
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
jdbc.username=root
jdbc.password=123456
jdbc.maxPoolSize=15
jdbc.minPoolSize=1
jdbc.initialPoolSize=1
jdbc.idleConnectionTestPeriod=1800
jdbc.maxIdleTime=3600
七,實體類
package com.demo.pojo;
import java.io.Serializable;
@SuppressWarnings("serial")
public class Shop implements Serializable {
private int id;//編號
private String name;//姓名
private String pwd;//密碼
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;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public Shop() {
super();
}
public Shop(String name, String pwd) {
super();
this.name = name;
this.pwd = pwd;
}
}
八,定義的Shop接口類
public interface IShopMapper {
//添加
public void insert(Shop shop);
//根據id查詢
public Shop getByid(int id);
}
九,IShopMapper.xml配置(相當於實現定義的接口)
<?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.demo.persistence.IShopMapper">
<!-- 使實體類的屬於跟表中的字段想對應 -->
<resultMap type="shop" id="shopResultMap">
<id column="id" property="id" javaType="int"/>
<result column="name" property="name" javaType="String"/>
<result column="pwd" property="pwd" javaType="String"/>
</resultMap>
<!-- 註冊 -->
<insert id="insert" parameterType="shop">
insert into shop(id,name,pwd) values(#{id},#{name},#{pwd})
</insert>
<!-- 根據id查詢parameterType是指參數類型resultMap是指返回類型-->
<select id="getempid" resultMap="shopResultMap" parameterType="int">
select * from shop where id=#{id}
</select>
</mapper>
十,shopDao類的代碼
import com.demo.pojo.Shop;
@Repository("shopDao")
public class ShopDao {
@Autowired
private SqlSessionTemplate sqlSessionTemplate;
//註冊
//這裏的insert是配置文件對應的id
public void insert(Shop shop){
sqlSessionTemplate.insert("insert", shop);
}
//根據id查詢 返回Shop對象
public Shop getById(int id){
return (Shop) sqlSessionTemplate.selectOne("getempid", id);
}
}
十一,ShopServlet類的代碼
@Service("shopServlet")
public class ShopServlet {
@Autowired
private ShopDao shopDao;
//註冊
public void AddShop(Shop shop){
shopDao.insert(shop);
}
//登錄
public Shop getById(int id){
return shopDao.getById(id);
}
}
十二,action類的代碼
@Controller
@RequestMapping("/Shop.do")
public class Add_Shop {
@Autowired
private ShopServlet shopServlet;
//註冊的方法
@RequestMapping(params="method=add")
public String add(String name,String pwd){
Shop shop=new Shop(name, pwd);
shopServlet.AddShop(shop);
return "scce";
}
//根據id查詢的方法
@RequestMapping(params="method=all")
public String All(int id){
Shop shop=shopServlet.getById(id);
HttpServletRequest request=((ServletRequestAttributes) RequestContextHolder
.getRequestAttributes()).getRequest();
request.setAttribute("shop", shop);
return "select";
}
}
十三,一個註冊的index.jsp頁面
<body>
<center>
<form action="/SpringMVC_Mybatis/Shop.do?method=add" method="post">
用戶名:<input type="text" name="name"><br>
密 碼:<input type="text" name="pwd"><br/>
<input type="submit" value="註冊">
</form>
</center>
</body>
十四,登錄成功之後跳到scce.jsp頁面 根據id查詢的頁面
<body>
<center>
<form action="/SpringMVC_Mybatis/shop.do?method=all" method="post">
編號:<input type="text" name="id" id="id"> <input type="submit" value="查詢">
</form>
</center>
</body>
十五,查詢之後跳到查詢結果的頁面select.jsp
<body>
<center>
編號:${shop.name}
密碼:${shop.pwd}
</center>
</body>