springmvc和mybatis整合框架

最新推荐文章于 2025-05-11 11:00:00 发布

原创最新推荐文章于 2025-05-11 11:00:00 发布 · 239 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#spring mvc #mybatis #框架

javaweb 专栏收录该内容

7 篇文章

订阅专栏

SpringMVC和MyBatis整合框架

导入相关Jar包

配置文件(/resources)

applicationContext-mybatis.xml
jdbc.properties
spring-servlet.xml
mybatis-config.xml
log4j.properties

Dao数据访问接口(cn.dao)
系统服务接口对象(cn.service)
数据对象模型(cn.pojo)
Controller(cn.controller)
JSP页面(/WEB-INF/pages)

整合需要的jar

数据库驱动包：mysql5.1

mybatis的jar包

mybatis和spring整合包

log4j包

dbcp数据库连接池包

spring3.2所有jar包

jstl包

创建resources资源文件夹配置以下配置文件

mybatis-config.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>
     <!-- 全局setting配置，根据需要添加 -->        

    <!-- 配置别名 --> 
    <typeAliases>
        <!-- 批量扫描别名 --> 
        <package name="cn.pojo"/>
    </typeAliases>

</configuration>

spring-sevlet.xml配置文件

<?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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"

    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-3.1.xsd">

    <!-- spring 扫描包下的所有类，让spring注解的类生效 -->
    <context:component-scan base-package="cn.controller" />

    <!--视图解析器 InternalResourceViewResolver 内部资源视图解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

</beans>

applicationContext-mybatis.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context"

    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-3.1.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- properties文件读取配置 -->
    <context:property-placeholder location="classpath:jdbc.properties" />

    <!-- JNDI获取数据源（使用dbcp连接池） -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close" scope="singleton">
        <property name="driverClassName" value="${driverClassName}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
    </bean>

    <!-- 事务注解生效 -->
    <tx:annotation-driven />

    <!-- 事务管理 @Transaction/AOP -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 配置mybatis sqlSessionFactory 在 mybatis-spring.jar中 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:mybatis-config.xml" />
    </bean>

    <!-- mapper 接口所在的包名，spring自动查找下面的mapper并生成实例 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.dao"/>
        <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> -->
    </bean>
</beans>

jdbc.properties

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/test？characterEncoding=utf8
username=root
password=wugen199711

log4j.properties

###debug为错误登记 console 控制台输出,logfile日志输出,表示是输出debug级(含)以上的错误###
log4j.rootLogger=debug,CONSOLE,LOGFILE
###控制台输出的格式,布局,输出形态err###
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Target=System.err
log4j.appender.CONSOLE.layout=org.apache.log4j.SimpleLayout

log4j.appender.LOGFILE=org.apache.log4j.FileAppender
###输出到日志文件的名字 ###
log4j.appender.LOGFILE.File=accp.log
###是否是追加形式 ###
log4j.appender.LOGFILE.Append=true
###布局/格式###
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %l %F %p %m%n

工程的web.xml

<?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">

    <!-- 加载spring容器 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-*.xml</param-value>
    </context-param>

    <!-- spring前端控制器 --> 
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <!-- -->
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup><!-- 自动启动 大于零的正整数 越小优先级越大 -->
    </servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <!-- 第一种：*.action，访问以.action结尾 由DispatcherServlet进行解析 第二种：/，所以访问的地址都由DispatcherServlet进行解析，对于静态文件的解析需要配置不让DispatcherServlet进行解析   
使用此种方式可以实现 RESTful风格的url 第三种：/*，这样配置不对，使用这种配置，最终要转发到一个jsp页面时， 仍然会由DispatcherServlet解析jsp地址，不能根据jsp页面找到handler，会报错。 -->  
        <url-pattern>/</url-pattern>
    </servlet-mapping>


    <!-- 设置字符编码的filter，解决form的提交的中文乱码问题 -->
    <filter>
        <filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- spring配置 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- log4j -->
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>classpath:log4j.properties</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

Dao数据访问UserMapper接口和UserMapper.xml的Sql映射文件

package cn.dao;

import java.util.List;
import cn.pojo.User;

public interface UserMapper {

    public List<User> getUserList();

    public User getUser(User user);

    public int insertUser(User user);

    public int updateUser(User user);

    public int deleteUser(User user);
}

<?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.dao.UserMapper">

    <select id="getUserList" resultType="User">
        select * from user order by
        id desc
    </select>

    <select id="getUser" resultType="User" parameterType="User">
        select *
        from user where userName=#{userName} and
        userPassword=#{userPassword}
    </select>

    <insert id="insertUser" parameterType="User">
        insert into
        user(userName,userPassword) values(#{userName},#{userPassword});
    </insert>

    <insert id="updateUser" parameterType="User">
        update user set
        userName=#{userName},userPassword=#{userPassword} where id=#{id} 
    </insert>

    <delete id="deleteUser" parameterType="User">
        delete from user where id=#{id}
    </delete>
</mapper>

系统服务接口对象

package cn.service;

import java.util.List;
import cn.pojo.User;

public interface UserService {

    public List<User> getUserList();

    public User getUser(User user);

    public int insertUser(User user);

    public int updateUser(User user);

    public int deleteUser(User user);
}

package cn.service.impl;

import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import cn.dao.UserMapper;
import cn.pojo.User;
import cn.service.UserService;

public class UserServiceImpl implements UserService {

    //使用注解的方式
    @Resource
    private UserMapper userMapper;

    public List<User> getUserList() {
        // TODO Auto-generated method stub
        return userMapper.getUserList();
    }

    public User getUser(User user) {
        // TODO Auto-generated method stub
        return userMapper.getUser(user);
    }

    public int insertUser(User user) {
        // TODO Auto-generated method stub
        return userMapper.insertUser(user);
    }

    public int updateUser(User user) {
        // TODO Auto-generated method stub
        return userMapper.updateUser(user);
    }

    public int deleteUser(User user) {
        // TODO Auto-generated method stub
        return userMapper.deleteUser(user);
    }

}

创建pojo实体类

package cn.pojo;

public class User {

    private Integer id;

    private String userCode;

    private String userName;

    private String userPassword;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }    

    public String getUserCode() {
        return userCode;
    }

    public void setUserCode(String userCode) {
        this.userCode = userCode;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getUserPassword() {
        return userPassword;
    }

    public void setUserPassword(String userPassword) {
        this.userPassword = userPassword;
    }

}

Controller类实现

package cn.controller;

import java.util.List;
import javax.annotation.Resource;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import cn.dao.UserMapper;
import cn.pojo.User;

@Controller
public class IndexController {

    @Resource
    private UserMapper userMapper;

    private Logger logger = Logger.getLogger(IndexController.class);

    @RequestMapping("/index.html")
    public String index(){
        List<User> userlist = userMapper.getUserList();
        //打印userlist中的大小
        logger.debug("userlist size -->  "+userlist.size());
        return "../../index";
    }   
}