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";
	}
}

SSM最简单框架搭建

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