【SSM框架】Spring + Springmvc + Mybatis 基本框架搭建集成教程

本文将讲解SSM框架的基本搭建集成，并有一个简单demo案例

说明：1、本文暂未使用maven集成，jar包需要手动导入。

　　　2、本文为基础教程，大神切勿见笑。

　　　3、如果对您学习有帮助，欢迎各种转载，注明出处。

　　　4、本文涉及源码和jar包下载地址：

一、导包

需要准备的包：

　　1、spring包

　　2、springmvc 包

　　3、mybatis 包

请自行下载导入，也可以去本人分享的网盘下载。

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在lib目录创建spring,mybatis分类管理，将包复制进入各自的文件夹，并加载包。

二、配置文件

创建名为：config 的Source Folder文件夹。新建xml文件，命名为：springmvc.xml

2.1springmvc.xml 配置

　　2.1.1、加入需要的beans标签库（aop.tx.context.mvc）

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.1.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
    ">

　　2.1.2、开启扫描注解

<!-- 开启扫描注解 -->
    <context:component-scan base-package="com.hyh.action,com.hyh.service.impl"></context:component-scan>

备注：com.hyh.action,com.hyh.service.impl包自己创建。　　

　　2.1.3、springmvc配置

<!-- 简化springmvc的配置 :代替了注解映射器和注解适配器 -->
    <mvc:annotation-driven/>

　　2.1.4、实例化数据库连接池

<!-- 实例化数据库连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="defaultAutoCommit" value="false"></property>
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf8"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
    </bean>

备注：次数使用MySQL 数据库，按实际自己配置。

　

　2.1.5、实例化SqlSessionFactoryBean

<!-- 实例化SqlSessionFactoryBean -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <!-- 加载mybatis的配置文件<property name=""></property>-->
    </bean>

　　2.1.6、实例化事务管理器对象

<!-- 实例化事务管理器对象 -->
   <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
           <!-- 注入数据库连接池对象 -->
           <property name="dataSource" ref="dataSource"></property>
   </bean>

2.1.7、声明事务

<!-- 声明事务：声明需要纳入事务管理的方法的特征 ，事务管理的切面-->
   <tx:advice id="txAdvice" transaction-manager="txManager">
           <tx:attributes>
               <tx:method name="save*" propagation="REQUIRED"/>
               <tx:method name="mod*" propagation="REQUIRED"/>
               <tx:method name="update*" propagation="REQUIRED"/>
               <tx:method name="del*" propagation="REQUIRED"/>
               <tx:method name="*" propagation="REQUIRED" read-only="true"/>

           </tx:attributes>
   </tx:advice>

2.1.8、织入：进行aop的配置

 <!-- 织入：进行aop的配置 -->
   <aop:config>
           <aop:pointcut expression="execution(* com.bjsxt.service.impl.*.*(..))" id="pc"/>
           <aop:advisor advice-ref="txAdvice" pointcut-ref="pc"/>
   </aop:config>

2.1.9、配置Mapper，产生接口代理

<!-- 配置mybatis，Mapper接口的扫面，产生代理Mapper接口的代理 -->
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
           <!-- 注入需要扫面的mapper接口的包的名字，多个包之间用逗号隔开 -->
           <property name="basePackage" value="com.bjsxt.mapper"></property>
           <!-- 注入sessionFactory，产生代理对象 -->
           <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
   </bean>

以上springmvc.xml完整的代码如下：

三、web.xml配置

<!-- 配置sprngmvc的核心控制器 -->
  <servlet>
      <servlet-name>springmvc</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <!-- 在启动web容器的时候，实例化servlet对象 -->
      <load-on-startup>1</load-on-startup>
      <init-param>
          <!-- 加载springmvc的配置文件 -->
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:springmvc.xml</param-value>
      </init-param>
  </servlet>
  <servlet-mapping>
      <servlet-name>springmvc</servlet-name>
      <url-pattern>*.do</url-pattern>
  </servlet-mapping>

--------------------------------创建结束-------------------------------------

接下来是一个Demo ---------------------------------------------------------

四、创建包

　　com.hyh.action

　　com.hyh.mapper

　　com.hyh.service

　　com.hyh.service.impl

　　com.hyh.entity

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" alt="" />

　　　　1、实体类创建

　　　　　　private Integer uid;

　　　　　　private String uname;

　　　　　　private String address;

package com.hyh.entity;

public class Users {
    private Integer uid;
    private String uname;
    private String address;

　　　　2、Mapper接口创建

　　　　　　saveusers(Users user);

package com.hyh.mapper;

import com.hyh.entity.Users;

public interface UsersMapper {
    public void saveusers(Users user);
}

　　　　3、创建Mapper.xml文件

　　　　　　　　namespace:完全限定名一致

　　　　　　　　id:方法名一致；

　　　　　　　　parameterType：类名限定名；

<?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>

    <!-- 定义数据库的增加操作 -->
    <insert id="saveUsers" parameterType="com.hyh.entity.Users">
        insert into users (uid,uname.address) values (null,#{uname},#{address})
    </insert>
    <!-- 其他模块操作 -->

</mapper>

　　　　4、service接口创建

　　　　　　saveUserService

package com.hyh.service;

import com.hyh.entity.Users;

public interface UsersService {
    public void saveUsersService(Users user);
}

　　　　5、service接口实现类

　　　　　　纳入容器 @Service("service")

　　　　　　注入：@Resource

　　　　　　创建接口属性

@Service("userServiceImpl")
public class UsersServiceImpl implements UsersService {

    @Resource
    private UsersMapper usersMapper;

    public void saveUsersService(Users user) {
        // TODO Auto-generated method stub
        usersMapper.saveusers(user);
    }
}

　　　　6、action Handler类创建

　　　　　　　@ConTroller

　　　　　　　　声明：@Resource

　　　　　　　　@RequestMapping("方法名保持一致")

@Controller("usersHandler")
public class UsersHandler {
    @Resource(name = "usersServiceImpl")
    private UsersService usersServiceImpl;

    @RequestMapping("/saveUsers")
    public String saveUsers(Users user) {
        usersServiceImpl.saveUsersService(user);
        return "success.jsp";
    }
}

　　　　　7、前台UI创建

　　　　　　　　　

(未完待续)附加知识：

五、拦截器配置　　

　　MyHandlerIntercepor.java