SSM(SpringMVC+Spring+Mybatis)框架搭建

1. 使用Maven創建一個webapp項目

如果需要，參看網上其他作者的博文：http://blog.csdn.net/zhshulin/article/details/37921705
創建好後的項目結構

2.Maven引入需要的JAR包

pom.xml

<!-- 集中定義依賴版本號 -->
    <properties>
        <junit.version>4.10</junit.version>
        <spring.version>4.1.3.RELEASE</spring.version>
        <mybatis.version>3.2.8</mybatis.version>
        <mybatis.spring.version>1.2.2</mybatis.spring.version>
        <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
        <mysql.version>5.1.32</mysql.version>
        <slf4j.version>1.6.4</slf4j.version>
        <jackson.version>2.4.2</jackson.version>
        <druid.version>1.0.9</druid.version>
        <httpclient.version>4.3.5</httpclient.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>2.5</servlet-api.version>
        <jsp-api.version>2.0</jsp-api.version>
        <joda-time.version>2.5</joda-time.version>
        <commons-lang3.version>3.3.2</commons-lang3.version>
        <commons-io.version>1.3.2</commons-io.version>
    </properties>

        <dependencies>
            <!-- 單元測試 -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>

            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- springMVC -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</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-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>

            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <!-- 分頁助手 -->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>3.7.5</version>
            </dependency>
            <dependency>
                <groupId>com.github.jsqlparser</groupId>
                <artifactId>jsqlparser</artifactId>
                <version>0.9.1</version>
            </dependency>
            <!-- 通用Mapper -->
            <dependency>
                <groupId>com.github.abel533</groupId>
                <artifactId>mapper</artifactId>
                <version>2.3.4</version>
            </dependency>

            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>

            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>

            <!-- Jackson Json處理工具包 -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>

            <!-- 連接池 -->
            <dependency>
                <groupId>com.jolbox</groupId>
                <artifactId>bonecp-spring</artifactId>
                <version>0.8.0.RELEASE</version>
            </dependency>

            <!-- httpclient -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>

            <!-- JSP相關 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jsp-api</artifactId>
                <version>${jsp-api.version}</version>
                <scope>provided</scope>
            </dependency>

            <!-- 時間操作組件 -->
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda-time.version}</version>
            </dependency>

            <!-- Apache工具組件 -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>

        </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- 資源文件拷貝插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- java編譯插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <!-- <pluginManagement>
            <plugins>
                配置Tomcat插件
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                    <configuration>
                        <port>8081</port>
                        <path>/</path>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement> -->
    </build>

3.SpringMVC+Spring+Mybatis的整合思路

1)整合dao層

整合mybatis框架；
1.創建mybatis-config.xml,配置mybatis自己的參數
2.創建apapplicationContext-mybatis.xml    
 - 配置數據源。
 - 需要讓Spring容器管理SqlsessionFactory,單例存在。
 - 把mapper的代理對象放到Spring容器中。

2)整合Service層

1.事務管理
2.需要把service實現類對象放到spring容器中管理。

3)整合表現層

整合SpringMVC
1.配置註解驅動
2.配置視圖解析器
3.需要掃描controller

4)web.xml

1.Spring容器的配置
2.Springmvc前端控制器的配置
3.Post亂碼過濾器

3.1 Spring整合dao

創建apapplicationContext-mybatis.xml
- 配置數據源。
- 需要讓Spring容器管理SqlsessionFactory,單例存在。
- 把mapper的代理對象放到Spring容器中。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    <!-- 加載配置文件 -->
    <context:property-placeholder location="classpath:jdbc.properties" />

    <!-- 定義數據源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        destroy-method="close">
        <!-- 數據庫驅動 -->
        <property name="driverClass" value="${driver}" />
        <!-- 相應驅動的jdbcUrl -->
        <property name="jdbcUrl" value="${url}" />
        <!-- 數據庫的用戶名 -->
        <property name="username" value="${mysqluser}" />
        <!-- 數據庫的密碼 -->
        <property name="password" value="${mysqlpassword}" />
    </bean>

    <!-- sqlSession工廠 mapper的接口配置 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 加載全局的配置文件 -->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
        <!-- 配置mapper的掃描，找到所有的mapper.xml映射文件。 -->
        <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
        <!-- 配置類型別名 -->
        <property name="typeAliasesPackage" value="dwj.lifeshop.pojo"></property>
    </bean>

    <!-- mapper代理對象 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
      <!--配置mapper接口所在路徑，掃描路徑下的所有的mapper接口  如果配置多個mapper的包，使用逗號進行分割-->
      <property name="basePackage" value="dwj.lifeshop.mapper" />
    </bean>
</beans>

jdbc.properties(數據庫信息)

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/lifeshop_db?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&rewriteBatchedStatements=TRUE
mysqluser=root
mysqlpassword=123

mybatis-config.xml(mybatis自身屬性配置)

<?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>
        <!-- 開啓駝峯匹配 -->
        <setting name="mapUnderscoreToCamelCase" value="true" />
    </settings>
    <!-- 分頁助手 -->
    <plugins>
        <!-- com.github.pagehelper爲PageHelper類所在包名 -->
        <plugin interceptor="com.github.pagehelper.PageHelper">
            <!-- 數據庫方言 -->
            <property name="dialect" value="mysql" />
            <!-- 設置爲true時，使用RowBounds分頁會進行count查詢 會去查詢出總數 -->
            <property name="rowBoundsWithCount" value="true" />
        </plugin>
        <!-- 通用mapper的配置 -->
        <plugin interceptor="com.github.abel533.mapperhelper.MapperInterceptor">
            <!-- 主鍵自增回寫方法 -->
            <property name="IDENTITY" value="MYSQL" />
            <!-- 通用mapper接口，如果有多個，用逗號隔開 -->
            <property name="mappers" value="com.github.abel533.mapper.Mapper" />
        </plugin>
    </plugins>
</configuration>

mybatis/mapper/mapper.xml 用於映射對應實體類,可在內配置複雜SQL語句
舉例:userMapper.xml

<?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">
<!-- namespace 理論上隨意命名 因爲mybatis動態代理的使用 書寫時，要講namespace指定爲接口的全路徑 -->
<mapper namespace="com.**.dao.UserMapper">

    <select id="selectByPhone" resultType="User">
        select * from tb_user where phone = #{phone}
    </select>
    <select id="queryByQQid" resultType="User">
        select * from tb_user where qqid = #{openid}
    </select>
    <select id="queryByWeiXinid" resultType="User">
        select * from tb_user where weixinid = #{openid}
    </select>
    <select id="queryByWeiBoid" resultType="User">
        select * from tb_user where weiboid = #{openid}
    </select>
</mapper>

3.2 Spring整合Service

1.事務管理
2.需要把service實現類對象放到spring容器中管理。

創建applicationContext-tx.xml 配置Spring事務相關

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 定義事務管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 定義事務策略 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--所有以query開頭的方法都是隻讀的 -->
            <tx:method name="query*" read-only="true" />
            <tx:method name="get*" read-only="true" />
            <tx:method name="find*" read-only="true" />
            <tx:method name="select*" read-only="true" />
            <!--其他方法使用默認事務策略 -->
            <tx:method name="*" />
        </tx:attributes>
    </tx:advice>

    <aop:config>
        <!--pointcut元素定義一個切入點，execution中的第一個星號 用以匹配方法的返回類型，
            這裏星號表明匹配所有返回類型。 com.abc.dao.*.*(..)表明匹配com.**.service包下的所有類的所有 
            方法 -->
        <aop:pointcut id="myPointcut" expression="execution(* dwj.service.*.*(..))" />
        <!--將定義好的事務處理策略應用到上述的切入點 -->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="myPointcut" />
    </aop:config>

</beans>

applicationContext-service.xml,把service實現類對象放到spring容器中管理。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 掃描包加載Service實現類 -->
    <context:component-scan base-package="dwj.lifeshop.service"></context:component-scan>
</beans>

3.3 Spring整合SpringMVC

1、配置註解驅動
2、配置視圖解析器
3、需要掃描controller

applicationContext-springmvc.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: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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="dwj.lifeshop.controller" />
    <mvc:annotation-driven />
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- 資源映射,靜態資源放行 -->
    <mvc:resources location="/WEB-INF/css/" mapping="/css/**"/>
    <mvc:resources location="/WEB-INF/js/" mapping="/js/**"/>

    <!-- 定義文件上傳解析器 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 設定默認編碼 -->
        <property name="defaultEncoding" value="UTF-8"></property>
        <!-- 設定文件上傳的最大值5MB，5*1024*1024 -->
        <property name="maxUploadSize" value="5242880"></property>
    </bean>
</beans>

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="lifeshop" version="2.5">
    <display-name>taotao-manager</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>
    <!-- 加載spring容器 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext-*.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 解決post亂碼 -->
    <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>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- springmvc的前端控制器 -->
    <servlet>
        <servlet-name>lifeshop</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- contextConfigLocation不是必須的， 如果不配置contextConfigLocation， springmvc的配置文件默認在：WEB-INF/servlet的name+"-servlet.xml" -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/applicationContext-springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>lifeshop</servlet-name>
        <!--/：會攔截所有請求包括靜態資源。需要在springmvc.xml中添加靜態資源的映射。-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

4.啓動測試

在controller層或者service層寫一個簡單的測試代碼,具體操作後期有時間再補