挺详细的spring+springmvc+mybatis配置整合|含源代码

逃离我推掉我的手 2023-01-06 05:40 100阅读 0赞

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大家好，我是雄雄，今天来带着大家来配置一下SSM（spring+springmvc+

mybatis）框架。

# 01 #

新建java web项目

直接在myeclipse中，新建一个web项目即可。

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# 02 #

导入jar包

将SSM所需的jar包复制到项目的/WebRoot/WEB-INF/lib中，在这里我整理了下，大致需要34个jar文件，复制完之后，选中所有jar包，右击—Build Path-->Add to Build Path。

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# 03 #

配置web.xml文件。

web.xml文件需要配置三部分信息，spring、springmvc以及解决springmvc传值乱码的过滤器，分别如下：

spring配置信息：

<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>

springmvc配置信息：

<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-servlet.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>

设置编码格式的过滤器信息：

<filter>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>

# 04 #

配置Spring配置文件

applicationContext.xml文件，里面需要包含这些信息：用来连接数据库的数据源信息

<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/schooldb"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
      </bean>

加载mybatis-config.xml文件以及sql映射文件的SqlSessionFactory：

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="mapperLocations">
          <list>
            <value>classpath:org/dao/*.xml</value>
          </list>
        </property>
      </bean>

Mapper注入映射器的MapperScannerConfigurer：

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

最后就是扫描注解的配置：

<context:component-scan base-package="org.dao,org.service,org.web"/>
      <mvc:annotation-driven/>

# 05 #

配置springmvc的信息

springmvc-servlet.xml中需要包含最基本的两个部分，扫描注解和springmvc请求的前缀后缀设置：

<context:component-scan base-package="org.web,org.dao,org.service"/>
      <mvc:annotation-driven/>
      
      
      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
        <property name="suffix" value=".jsp"></property>
      </bean>

# 06 #

配置mybatis配置文件

本文件简单点，就配置个别名和打印sql语句就行，都是可选的：

<?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>
      
       <settings>
            
            <setting name="logImpl" value="STDOUT_LOGGING" />
        </settings>
      
      <typeAliases>
        <package name="org.entity"/>
      </typeAliases>
      
    </configuration>

附录：

spring配置文件（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:aop="http://www.springframework.org/schema/aop"
      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-3.1.xsd
      http://www.springframework.org/schema/p 
      http://www.springframework.org/schema/p/spring-p-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/mvc 
      http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context-3.1.xsd
      ">
    
      
      <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/schooldb"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
      </bean>
      
      
      <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="mapperLocations">
          <list>
            <value>classpath:org/dao/*.xml</value>
          </list>
        </property>
      </bean>
      
      
      <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="org.dao"></property>
      </bean>
      
      
      <context:component-scan base-package="org.dao,org.service,org.web"/>
      <mvc:annotation-driven/>
    
    </beans>

springmvc配置文件（springmvc-servlet.xml）：

web.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.0" 
      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_3_0.xsd">
      <display-name></display-name>  
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
      
      
      <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-servlet.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>
      
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
      </context-param>
      
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
      
      
      <filter>
        <filter-name>encodingFilter</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>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
      
    </web-app>

配置到此结束，明天带着大家实现一遍SSM的增删改查案例。

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