SSM最简单框架搭建

需要的包：

spring核心jar包

spring-jdbc-3.2.16.RELEASE.jar

mysql-connector-java-5.1.26-bin.jar

mybatis-3.1.1.jar

mybatis-spring-1.2.3.jar

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目录结构



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数据库



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持久化类

package com.bean;

import org.apache.ibatis.session.SqlSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

@Repository
public class Card {
private int id;
private String code;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
@Override
public String toString() {
return "Card [id=" + id + ", code=" + code + "]";
}
}

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dao

package com.dao;

import com.bean.Card;

public interface CardDao {

int insert(Card record);

}

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CardMapper.xml文件 在com.mapping包下

<?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.CardDao" >
<insert id="insert" parameterType="com.bean.Card" >
insert into card (id, code)
values (#{id}, #{code})
</insert>
</mapper>

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mybatis.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>
<mappers>
<mapper resource="com/mapping/CardMapper.xml"/>
</mappers>
</configuration>

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applicationContext.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: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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd"> 
<context:component-scan base-package="com.daoImpl"></context:component-scan>

<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/mybatistest?Unicode=true&characterEncoding=UTF-8"></property>
<property name="username" value="root"></property>
<property name="password" value=""></property>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:mybatis.xml"></property>
</bean>
<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
</bean>
</beans>

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daoImpl

package com.daoImpl;

import org.apache.ibatis.session.SqlSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.bean.Card;
import com.dao.CardDao;

@Service
public class CardDaoImpl implements CardDao {
@Autowired
private SqlSession sqlSession;

@Override
public int insert(Card record) {
int i=sqlSession.update("com.dao.CardDao.insert", record);
return i;
}

}

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controller

package com.controller;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.bean.Card;
import com.daoImpl.CardDaoImpl;

@Controller
public class First {
@Autowired
private CardDaoImpl cardDaoImpl;

@RequestMapping("/login")
public String login(String id,String code,HttpServletRequest request){
//System.out.println(id+":"+code);

cardDaoImpl.insert(record);

request.setAttribute("CARD", record);
return "success";
}
}

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springMVC.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: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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <context:component-scan base-package="com.controller"/>
<mvc:default-servlet-handler />
<mvc:annotation-driven />
<!-- 定位返回页面 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
id="internalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>

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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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>SSMDemo</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<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:springMVC.xml</param-value>
</init-param>
<!-- <load-on-startup>1</load-on-startup> -->
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

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index.jsp

<body>
<form action="login">
id：<input type="text" name="id"><br>
code：<input type="text" name="code"><br>
组成card<input type="submit" value="确定">
</form>
</body>

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WEB-INF/success.jsp

<body>
${CARD.id }
${CARD.code }
</body>

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邮箱：${123456789+491299984}@qq.com

这种方式是注入sqlSession到daoImpl中，其实有点蠢麻烦。 

可以直接在applicationContext.xml文件中对dao接口进行注入，然后该接口的方法就可以直接使用了

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dao"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>

@Service
public class CardService{
@Autowired
private CardDao cardDao;

public void insert(int a) {

cardDao.insert(a);
}
}

@Controller
public class First {
@Autowired
private CardService cardService;

@RequestMapping("/login")
public String login(String id,String code,HttpServletRequest request){

cardService.insert(record);

request.setAttribute("CARD", record);
return "success";
}
}