整合需要的依賴包:(pom.xml)
<!-- log4j 日志 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- servlet API -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- MySQL驅動 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.40</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.1.1</version>
</dependency>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.29</version>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- aspectjrt -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.10</version>
</dependency>
<!-- aspectjweaver -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.10</version>
</dependency>
<!-- hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.8.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mockito/mockito-all -->
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.10.19</version>
</dependency>
web.xml 與 (前端控制器名-servlet.xml) 都在WEB-INF下
- 如果用到struts,需在web.xml中配置struts過濾器(web.xml):
本次講的是SpringMVC,所以與struts無關,可跳過struts配置
<!-- struts前端控制器(由它來決定走那個Action,它會讀取struts.xml文件來決定) -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<!-- 所有的請求都要經過這個過濾器 -->
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
- 如果用到SpringMVC,需在web.xml中配置SpringMVC的前端控制器(web.xml):
<!-- springMVC前端控制器 -->
<servlet>
<servlet-name>frontController</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>frontController</servlet-name>
<!-- 配/表示不會覆蓋默認設置(server里面的web.xml) -->
<!-- 配*.do表示只有.do的資源走這里,靜態資源不受管理 -->
<url-pattern>*.do</url-pattern>
</servlet-mapping>
- 與SpringMVC對應的xml文件( 前端控制器名-servlet.xml )
這里是frontController-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置搜索組件的基礎包 (將被注解的類的對象納入spring IoC容器的管理) -->
<context:component-scan base-package="com.qfedu.dang.controller"/>
<!-- 使用注解來配置需要spring IoC容器托管的對象以及對象之間的依賴關系 -->
<context:annotation-config/>
<!-- 配置Spring的Bean的驗證器(可通過@Pattern(regexp = "\\w{4,20}")寫正則表達式來驗證,再在controller中對應的地方打上@Valid) -->
<bean id="globalValidator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/>
<!-- 配置json消息轉換器 -->
<mvc:annotation-driven validator="globalValidator">
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
<bean class="org.springframework.http.converter.BufferedImageHttpMessageConverter"/>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 配置springMVC的視圖解析器(渲染視圖完成模型和視圖的綁定) -->
<bean id="jspViewResolver" 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>
<!-- 配置處理文件上傳的解析器 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="1048576"/>
</bean>
</beans>
- 配置spring配置文件的位置(app.xml的位置):(web.xml)
<!-- 通過配置上下文參數指定Spring配置文件的位置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:app.xml</param-value>
</context-param>
- 配置IoC容器上下文監聽器(web.xml)
<!-- 配置創建IoC容器的上下文監聽器 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
- 配置編碼過濾器:(web.xml)
<!-- 設置處理編碼的過濾器 -->
<filter>
<filter-name>enc</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>enc</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
app.xml 在 src 根目錄下
Hibernate中的注解
@Entity實體類
@Table表
@Id主鍵
@Column字段名
@GeneratedValue(strategy = GenerationType.IDENTITY)主鍵生成策略
@Transient隱藏字段
@ManyToOne
@OneToMany(mappedBy,cascade=CascadeType.ALL)雙向關聯
@JoinColumn連接字段
@Embeddable標注嵌入式主鍵類,表示這個是一個嵌入式類(實現Serializable接口)
@Embedded 標注實體中的嵌入式主鍵<context:component-scan base-package="com.qfedu.dang"/>
Spring IoC容器會納入@Component,@Service,@Controller,@Repository注解的類進行管理
<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置搜索組件的基礎包 (將被注解的類的對象納入spring IoC容器的管理) -->
<context:component-scan base-package="com.qfedu.dang"/>
<!-- 使用注解來配置需要spring IoC容器托管的對象以及對象之間的依賴關系 -->
<context:annotation-config/>
<!-- 配置為基于AspectJ的切面自動生成代理 -->
<aop:aspectj-autoproxy/>
<!-- 配置數據庫連接池(空間換時間的優化) -->
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/dang?useUnicode=true&characterEncoding=utf8"/>
<property name="username" value="root"/>
<property name="password" value="123456"/>
<property name="initialSize" value="10"/>
<property name="maxTotal" value="50"/>
<property name="maxWaitMillis" value="15000"/>
</bean>
<!-- 配置Hibernate的會話工廠(持久層需要依賴的對象) -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- @Entity -->
<property name="packagesToScan" value="com.qfedu.dang.entity"/>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.format_sql=true
</value>
</property>
</bean>
<!-- 配置spring為Hibernate提供的事務管理器 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!-- 配置使用注解來聲明事務 -->
<tx:annotation-driven/>
</beans>
- hibernate運行原理
1.讀取并解析配置文件
2.讀取并解析映射信息,創建SessionFactory
3.打開Sesssion
4.創建事務Transation
5.持久化操作
6.提交事務
7.關閉Session
8.關閉SesstionFactory
- SpringMVC注解
1.@RequestMapping("/reg") 表示訪問reg.do
方法最后返回的字符串是返回的jsp頁面
2.@RequestParam - 請求參數(表單或者查詢字符串)
3.@CookieValue - Cookie中拿參數
4.@RequestHeader - 請求頭拿參數
5.@PathVariable - 路徑參數("/student/123005")
6.@ResponseBody 將內容或對象作為 HTTP 響應正文返回,并調用適合HttpMessageConverter的Adapter轉換對象,寫入輸出流
7.@RequestBody 將HTTP請求正文轉換為適合的HttpMessageConverter對象