SSM整合需要哪些包，過程如何

 <!-- java ee -->
      <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
      </dependency>

      <!-- 單元測試 -->
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
      </dependency>

      <!-- 實現slf4j接口並整合 -->
      <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.2</version>
      </dependency>

      <!-- JSON -->
      <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.8.7</version>
      </dependency>


      <!-- 數據庫 -->
      <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.41</version>
        <scope>runtime</scope>
      </dependency>

      <!-- 數據庫連接池 -->
      <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
      </dependency>

      <!-- MyBatis -->
      <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
      </dependency>

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

      <!-- Spring -->
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
      </dependency>
      <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
      </dependency>

配置過程：
主要配置文件：

Spring mvc配置：

1. 掃描web相關的bean 


   <context:component-scan base-package="com.ssm.controller"/>

開啓SpringMVC註解模式

<mvc:annotation-driven/>

3.靜態資源默認servlet配置

    <mvc:default-servlet-handler/>

4.配置jsp 顯示ViewResolver

  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

beans的頭（自行配置容易出錯）

<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.xsd
   http://www.springframework.org/schema/mvc
   http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

5.去web.xml配置SpringMVC 的servlet（此處把所有Spring的配置文件都加入到web.xml了）

  <!-- 配置DispatcherServlet -->
  <servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置springMVC需要加載的配置文件-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <!--把Spring所有配置文件都加載進去-->
      <param-value>classpath:spring-*.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <!-- 匹配所有請求，此處也可以配置成 *.do 形式 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

Spring和Mybais配置

1.定義要掃描註解的包

掃描service包下所有使用註解的類型
  <context:component-scan base-package="com.ssm.service"/>

2.配置外部文件（如，數據庫信息文件jsbc.properties）

<!-- 配置數據庫相關參數properties的屬性：${url} -->
    <context:property-placeholder location="classpath:jdbc.properties"/>

3.配置數據庫連接池

 <!-- 數據庫連接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>
        <property name="minPoolSize" value="${c3p0.minPoolSize}"/>
        <property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
        <property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
        <property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
    </bean>

4.配置sqlSessionFactory（mybatis的初始化）

 <!-- 配置SqlSessionFactory對象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入數據庫連接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 掃描model包 使用別名 -->
        <property name="typeAliasesPackage" value="com.ssm.model"/>
        <!-- 掃描sql配置文件:mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>

5.掃描Dao接口包，動態實現Dao接口，注入到spring容器中

  <!-- 配置掃描Dao接口包，動態實現Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 給出需要掃描Dao接口包 -->
        <property name="basePackage" value="com.ssm.dao"/>
    </bean>

6.配置事務管理

 <!-- 配置事務管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入數據庫連接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>

7.配置基於註解聲明事務（可選）

    <!-- 配置基於註解的聲明式事務 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

Beans的頭：

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

8.建好目錄

編寫UserDao.xml文件（存放sql語句），通過和xxxx（mapper的接口）對應起來。

<?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">

<!-- 設置爲IUserDao接口方法提供sql語句配置 -->
<mapper namespace="com.ssm.dao.IUserDao">

    <select id="selectUser" resultType="User" parameterType="Integer">
    SELECT * FROM user WHERE id = #{id}
</select>

</mapper>

編寫IUserDao（其實就是Mapper的接口），編寫與xml文件對應名字的方法。

public interface IUserDao {
    User selectUser(int id);
}

然後就可以通過@Resource把mapper注入到Service（其實到哪都可以使用,不過規範是Service中實現業務）中

即可使用

SSM整合需要哪些包，過程如何

Spring mvc配置：

Spring和Mybais配置

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