SSM框架搭建总结

需要的依赖介绍：
spring-webmvc 导入该jar包会自动导入很多spring相关依赖的包
jackson-core,data-bind,annotations 这三个是json相关的包
spring-jdbc,mybatis,mybatis-spring两者结合的一个插件,mysql-connector-java 是mysql驱动,commons-dbcp数据库连接池
junit测试

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>3.2.8.RELEASE</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.8.5</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.8.5</version>
</dependency>

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.8.5</version>
</dependency>


<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>3.2.8.RELEASE</version>
</dependency>

<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.4.0</version>
</dependency>

<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.1</version>
</dependency>

<dependency>
    <groupId>Mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.38</version>
</dependency>

<dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
    <version>1.4</version>
</dependency>

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>

配置Spring MVC控制器: web.xml 添加dispatcherservlet

  <servlet>
    <description></description>
    <display-name>DispatcherServlet</display-name>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <description></description>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:conf/spring-*.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

配置文件格式可以根据spring版本去官网找 此处格式为

<?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:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd">

   <!--  具体配置 -- >
<beans>

配置Spring-MVC: conf/spring-mvc.xml

  <!-- 配置组件扫描 -->
  <context:component-scan 
      base-package="com.bugsys.controller"/>
  <!-- 配置MVC注解扫描 -->
  <mvc:annotation-driven />

配置MyBatis: conf/spring-mybatis.xml

<!-- 配置dbcp连接池： 连接到数据库-->

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <!-- 连接池的基本连接参数 -->
    <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    <property name="url" value="jdbc:mysql://localhost:3306/cloud_note"></property> 
    <property name="username" value="root"></property>
    <property name="password" value=""></property>
    <!-- 连接池可选参数 -->
    <property name="maxActive" value="50"></property> 
    <property name="initialSize" value="5"></property> 
    <property name="maxIdle" value="5"></property> 
</bean>

<!-- 配置MyBatis的 Session 工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"></property>
    <!-- 声明MyBatis SQL 声明文件保存的地方 -->

    <property name="mapperLocations" value="classpath:mapper/*.xml">    </property>

  </bean>

<!-- 配置MyBatis的自动接口扫描 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 数据访问接口的存储位置 -->
        <property name="basePackage" value="cn.tedu.note.dao"></property> 
    </bean>

配置spring-mybatis.xml 包含bean: dpcp链接池, mybatis的session工厂, mybatis自动扫描接口
    dpcp连接池： 
        id=dataSource 其参数是包下的set方法取消set，并且把第一个字母换成小写 
        driverClassName/url/username/password
    session工厂：来自mybatis-spring这个包 
        sqlSessionFactoryBean dataSource ref='引用前面定义好的的dataSource对象' 
        mapperLocations 生命mybatis sql声明文件保存的地方  value="classpath:mapper/*.xml" 
    mybatis自动扫描接口： 数据访问接口的存放位置
        mybatis-spring包下 org.mybatis.spring.mapper包下的 MapperScannerConfigurer方法 basePackage