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声明式事务管理:是通过【】实现的事务管理

补充填写下面代码 <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"> <mapper namespace="com.xxgc.mapper.(1)"> <select id="findCustomerByIds" parameterType="Integer" resultType="com.xxgc.po.Customer"> select * from t_customer where id in (2) <foreach collection="list" item="id" index="index" open="(3)" separator="," close=")"> #id </foreach> </select> </mapper> public class MybatisTest { /** * 根据客户id批量查询客户信息 */ @Test public void findCustomerByIdsTest() throws Exception{ // 1. 读取配置文件 String resource="mybatis-config.xml"; InputStream inputStream = Resources.getResourceAsStream(resource); // 2. 根据配置文件创建SqlSessionFactory SqlSessionFactory (4) = new SqlSessionFactoryBuilder().build(inputStream); // 3. 通过SqlSessionFactory创建SqlSession SqlSession sqlSession = sqlSessionFactory.openSession(); // 4. 创建List集合，存储客户id List<Integer> ids = new ArrayList<Integer>(); ids.add(1); ids.add(2); // 5. SqlSession执行映射文件中定义的SQL，并返回映射结果 List<Customer> customers = sqlSession.selectList("com.xxgc.mapper" + ".CustomerMapper.findCustomerByIds", (5)); // 打印输出结果 for (Customer customer : customers) { System.out.println(customer); } // 6. 关闭SqlSession sqlSession.close(); } (缺图)

在Spring入门程序中只需将Spring的4个基础包以及commons-logging复制到lib目录中,并发布到类路径下即可

MyBatis映射文件中<insert>的<selectKey>子元素可以被设置为【】或【】。

没看懂空在哪?

<resultMap>元素的子元素<id>用于表示哪个列是【】，而【】元素用于表示POJO和数据表中普通列的映射关系

项目结构如下图所示：补充填写下面代码 <xml version="1.0" encoding="UTF-8"> <beans xmlns="http://www.springframework.org/schema/beans" 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-4.3.xsd"> <bean id="userDao" class="com.xxgc.ioc.UserDaoImpl"></bean> <bean id="userService" class="(2)"> <property name="(3)" ref="userDao"></property> </bean> </beans> public class (4) implements UserService { private UserDao userdao; public void (5)(UserDao userdao) { this.userdao = userdao; } public void say() { this.userdao.sayUser(); System.out.println("UserService say hello World "); } } (缺图)

【】是当前主流的Java持久层框架之一,它与Hibernate一样,也是一种ORM框架

依赖注入的作用就是在使用Spring框架创建对象时，动态的将其依赖的对象注入到【】组件中。

AOP术语中【】表示AOP框架在特定的切入点执行的增强处理,在定义好的切入点处所要执行的程序代码

所谓自动装配,就是将一个Bean自动的注入到到其他Bean的【】

在构建项目后端时，需要选择5个模块，分别是、、、、。

spring框架提供了两种核心容器，分别是 (1) 和

项目结构如下图所示：补充填写下面代码。 class="org.springframework.web.servlet.view.InternalResourceViewResolver">  <property name="(1)" value="/WEB-INF/jsp"></property>  <property name="suffix" value="(2) "></property> </bean> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value> (3) </param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <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: (4) </param-value> </init-param>  <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name> (5) </servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </servlet> (缺图)

RequestMapping注解类型用于映射【】。

在使用POJO类型数据绑定时，前端请求的参数名和POJO类中的【】一样，这样才会自动将请求数据绑定到POJO对象中。

项目结构如下图所示：补充填写下面代码。 <?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>  <typeAliases> <package name="(2) "></package> </typeAliases> </configuration> <xml version="1.0" encoding="UTF-8"> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" 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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">  <context:component-scan base-package="com.xxgc.controller"></context:component-scan> <mvc:annotation-driven></mvc:annotation-driven> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="(1) "></property> <property name="suffix" value=".jsp"></property> </bean> <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>encoding</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class> <init-param> <param-name>(3) </param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encoding</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping>  <servlet> <servlet-name> (4) </servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-config.xml</param-value> </init-param> <load-on-startup>(5)</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> </beans> (缺图)

项目结构如下图所示：补充填写下面代码。 <?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>  <typeAliases> <package name="(2) "></package> </typeAliases> </configuration> <xml version="1.0" encoding="UTF-8"> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" 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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">  <context:component-scan base-package="com.xxgc.controller"></context:component-scan> <mvc:annotation-driven></mvc:annotation-driven> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="(1) "></property> <property name="suffix" value=".jsp"></property> </bean> <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>encoding</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class> <init-param> <param-name>(3) </param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encoding</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping>  <servlet> <servlet-name> (4) </servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-config.xml</param-value> </init-param> <load-on-startup>(5)</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> </beans> (缺图)

项目结构如下图所示：补充填写下面代码。 (缺图)

MyBatis的删除操作在映射文件中是通过配置【】元素来实现

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