【SQshop 搭建的第二天】Idea ssm整合框架配置

--7/14

        說第一天沒太懂，今天才搞明白的。

        ①maven 聚合工程中pom.xml中的<dependencyManagement></dependencyManagement>，

這個標籤下的是jar包的管理，並不是導入了，。而繼承它的子模塊（module）的      dependency 

就不用寫jar包的版本號了

       ②低級錯誤

   sql的字段中出現了mysql的關鍵字  desc      ,教訓很深刻，。。    害得自己把數據庫瘋狂的改回來，阿里雲ecs服務器的mysql也要改，solr服務器的又要重新配置下。。 哈哈哈。。。造孽啊。。。

ssm   -->   spring + spring mvc + mybatis

步驟：

    1.配置SqlMapConfig.xml   (mybatis)

    2.applicationContext-dao.xml    (spring)

      applicationContext-service.xml (spring)

      applicationContext-trans.xml  (spring)

    3.spring-MVC.xml           (spring MCV)

    4.web.xml

開始：

1.SqlMapConfig.xml     

     整合spring+mybatis，數據池的配置，mapper的映射都交給spring容器去做了。所以，這個配置文件就不需要配置了。

<?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>

</configuration>

2.applicationContext.xml     

  applicationContext-dao.xml   主要負責上述的數據池的配置，mapper的映射

<?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">


    <context:property-placeholder location="classpath:resource/db.properties"/>

    <!--配置數據池-->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName"
                  value="${mysql.driver}"
        />
        <property name="url"
                  value="${mysql.url}"
        />
        <property name="username"
                  value="${mysql.username}"
        />
        <property name="password"
                  value="${mysql.password}"
        />
    </bean>

    <!--配置sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--配置掃描，加載mapper代理對象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.sleepq123.sqshop.mapper"/>
    </bean>
</beans>

application-service.xml   負責service相關業務的配置

<?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">

    <!--掃描帶service註解的類-->
    <context:component-scan base-package="cn.sleepq123.sqshop.service"></context:component-scan>
</beans>

applicationContext-trans.xml  負責事務管理。（aop代理）   

<?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">

    <!--配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--數據源-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!-- 傳播行爲 -->
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="create*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="select*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
        </tx:attributes>
    </tx:advice>
    <!-- 切面 -->
    <aop:config>
        <aop:advisor advice-ref="txAdvice"
                     pointcut="execution(* cn.sleepq123.sqshop.service.*.*(..))" />
    </aop:config>

</beans>

3.spring MVC.xml    表現層

<?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">


    <context:component-scan base-package="cn.sleepq123.sqshop.controller"></context:component-scan>

    <mvc:annotation-driven />

    <mvc:default-servlet-handler />

    <!--<!– 自定義攔截器註冊 –>-->
    <!--<mvc:interceptors>-->
        <!--<mvc:interceptor>-->
            <!--<mvc:mapping path="/admin/**"/>-->
            <!--<bean id="handleInterceptor" class="cn.sleepq123.myshop.interceptor.LoginInterceptor">-->

            <!--</bean>-->
        <!--</mvc:interceptor>-->
    <!--</mvc:interceptors>-->
    <!-- 視圖定位 -->
    <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
                  value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 支持上傳文件 -->
    <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

    <!-- 靜態映射 -->
    <mvc:resources location="WEB-INF/css/" mapping="/css/**" />
    <mvc:resources location="WEB-INF/js/" mapping="/js/**" />

</beans>

注意！下面這句是實現

@ResponseBody        java對象轉json數據類型

<mvc:annotation-driven />

4.web.xml    負責spring，spring-mvc配置文件的加載，設置歡迎頁面，亂碼過濾器

<?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="taotao" version="2.5">
    <display-name>sqshop-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>

    <!-- spring的配置文件-->
    <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>

    <!--亂碼過濾器-->
    <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>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


    <!-- spring mvc核心：分發servlet -->
    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- spring mvc的配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/springMVC.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--<servlet-mapping>-->
        <!--<servlet-name>default</servlet-name>-->
        <!--<url-pattern>*.jpg</url-pattern>-->
    <!--</servlet-mapping>-->
    <!---->
</web-app>

測試：

mybatis逆向查詢

ProductExample.Criteria criteria = example.createCriteria();
criteria.andProductidEqualTo(productId);
List<Product> products = productMapper.selectByExample(example);

ProductController.java   (service的代碼就不發了。無非就是注入ProductMapper,使用mybatis的逆向工程查詢）

@Controller
public class ProductController {
   @Autowired
   private  ProductService productService;

   @RequestMapping("/product/{productId}")
   @ResponseBody
   public Product getProductById(@PathVariable int productId){
      Product product = productService.getProductById(productId);
      System.out.println(product);
      return product;
   }

}

效果：