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Spring使用总结

發(fā)布時間：2025/5/22 javascript 24 豆豆

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一、基礎(chǔ)JAR包

spring-beans.jar spring-context.jar spring-core.jar spring-expression.jar

二、XML的配置

1、一級結(jié)構(gòu)

1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 6 <bean id="..." class="..."> 7  8 </bean> 9 </beans> 元數(shù)據(jù)的基本結(jié)構(gòu) <import resource="/resources/themeSource.xml"/>  <alias name="studentsManagerService" alias="studentsManagerService2"/>  <bean id="exampleBean" class="examples.ExampleBean"/>  <bean id="exampleBean" class="examples.ExampleBean2" factory-method="createInstance"/>  <bean id="serviceLocator" class="com.foo.DefaultServiceLocator"></bean> <bean id="exampleBean" factory-bean="serviceLocator" factory-method="createInstance"/>  <bean id="beanOne" class="ExampleBean" depends-on="manager,accountDao"></bean>  <bean id="lazy" class="com.foo.ExpensiveToCreateBean" lazy-init="true"/> <beans default-lazy-init="true"></beans>  <bean id="" class="" autowire="byType">  <bean id="ernie" class="com.***." dependency-check="none"> <bean id="ernie" class="com.***." dependency-check="simple"> <bean id="ernie" class="com.***." dependency-check="object"> <bean id="ernie" class="com.***." dependency-check="all">  
<bean id="obj" class="com.***." init-method="init" destroy-method="destroy" scope="prototype"/>

2、參數(shù)

<constructor-arg type="int" value="7500000"/> <constructor-arg index="0" value="7500000"/> <constructor-arg><bean class="x.y.Baz"/></constructor-arg> 
<property name="beanTwo" ref="yetAnotherBean"/>  <value>jdbc.driver.className=com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/mydb </value>  <idref bean="theTargetBean" />  <list/>、<set/>、<map/> <props/>

3、注解

?spring注解命名空間(org.springframework.beans.factory.annotation.*) //常用:Autowired、Qualifier

?javax注解命名空間(javax.annotation.*) //常用:Resource、PostConstruct、PreDestroy

?spring組件命名空間(org.springframework.stereotype.*) //常用:Component、 Repository、Service、Controller

@Autowired(required = false) private Student student2; //自動注解，有且僅有一個bean（當(dāng)添加required = false時沒有bean也不會報錯 )） @Autowired @Qualifier("cs2") private Student student2; //指定bean cs2,Autowired/Qualifier 可用于字段，Set方法，傳值方法 //@Resource(name="mainCatalog") 與@Autowired類似 @Autowired public void prepare(@Qualifier("mainCatalog") MovieCatalog movieCatalog, CustomerPreferenceDao customerPreferenceDao) {this.movieCatalog = movieCatalog;this.customerPreferenceDao = customerPreferenceDao; } <context:component-scan base-package="org.example"/> 
 @Service("myMovieLister") public class SimpleMovieLister {// ... } @Repository public class MovieFinderImpl implements MovieFinder {// ... }

?4、面向切面

添加jar包:

　　spring : spring-aop.jar、spring-aspects

???? aspect : aspectjrt.jar、aspectjtools.jar

??????? item : aopalliance.jar

1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:aop="http://www.springframework.org/schema/aop" 5 xmlns:context="http://www.springframework.org/schema/context" 6 xsi:schemaLocation=" 7 http://www.springframework.org/schema/context 8 http://www.springframework.org/schema/context/spring-context-3.0.xsd 9 http://www.springframework.org/schema/beans 10 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 11 http://www.springframework.org/schema/aop 12 http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> 13 <context:annotation-config /> 14 <context:component-scan base-package="com.itsoft"/> 15 <aop:aspectj-autoproxy /> 16 </beans> xml配置 1 package com.itsoft; 2 3 import org.aspectj.lang.ProceedingJoinPoint; 4 import org.aspectj.lang.annotation.After; 5 import org.aspectj.lang.annotation.Around; 6 import org.aspectj.lang.annotation.Aspect; 7 import org.aspectj.lang.annotation.Before; 8 import org.aspectj.lang.annotation.Pointcut; 9 import org.springframework.stereotype.Component; 10 11 /** 12 * 13 * @author Administrator 14 * 通過aop攔截后執(zhí)行具體操作 15 */ 16 @Aspect 17 @Component 18 public class LogIntercept { 19 20 @Pointcut("execution(public * com.itsoft.action..*.*(..))") 21 public void recordLog(){} 22 23 @Before("recordLog()") 24 public void before() { 25 this.printLog("已經(jīng)記錄下操作日志@Before 方法執(zhí)行前"); 26 } 27 28 @Around("recordLog()") 29 public void around(ProceedingJoinPoint pjp) throws Throwable{ 30 this.printLog("已經(jīng)記錄下操作日志@Around 方法執(zhí)行前"); 31 pjp.proceed(); 32 this.printLog("已經(jīng)記錄下操作日志@Around 方法執(zhí)行后"); 33 } 34 35 @After("recordLog()") 36 public void after() { 37 this.printLog("已經(jīng)記錄下操作日志@After 方法執(zhí)行后"); 38 } 39 40 private void printLog(String str){ 41 System.out.println(str); 42 } 43 } aspect實現(xiàn)(@Around @Before @After) 1 <bean id="logInterceptor" class="com.bjsxt.aop.LogInterceptor"></bean> 2 <aop:config> 3 <aop:aspect id="logAspect" ref="logInterceptor"> 4 <aop:before method="before" pointcut="execution(public * com.bjsxt.service..*.add(..))" /> 5 </aop:aspect> 6 </aop:config> XML替代注解

5、Spring 常用實現(xiàn)

<bean id="propertyConfigurerForAnalysis" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location"><value>classpath:com/foo/jdbc.properties</value></property> </bean> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations"><list><value>classpath:/spring/include/jdbc-parms.properties</value><value>classpath:/spring/include/base-config.properties</value></list></property> </bean><context:property-placeholder location="classpath:com/foo/jdbc.properties"/>  屬性占位符PropertyPlaceholderConfigurer 1 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> 2  3 <property name="driverClassName" value="${jdbc.driver}" /> 4 <property name="url" value="${jdbc.url}" /> 5 <property name="username" value="${jdbc.username}" /> 6 <property name="password" value="${jdbc.password}" /> 7 8  9 <property name="initialSize" value="5" /> 10 <property name="maxActive" value="100" /> 11 <property name="maxIdle" value="30" /> 12 <property name="maxWait" value="10000" /> 13 <property name="poolPreparedStatements" value="true" /> 14 <property name="defaultAutoCommit" value="true" /> 15 </bean> 數(shù)據(jù)源配置,使用應(yīng)用內(nèi)的DBCP數(shù)據(jù)庫連接池 <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="dataSource"/></bean> jdbcTemplate <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><property name="dataSource" ref="dataSource" /><property name="packagesToScan"><list><value>com.bjsxt.model</value></list></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop><prop key="hibernate.show_sql">true</prop></props></property></bean><bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate"><property name="sessionFactory" ref="sessionFactory"></property></bean> hibernateTemplate、sessionFactory 1 Xml 2 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 3 <property name="dataSource" ref="dataSource"/> 4 </bean> 5 6 <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 7 <property name="sessionFactory" ref="sessionFactory" /> 8 </bean> 9 10 <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven> 11 12 Java 13 @Transactional(readOnly=true) 事務(wù)注解 <bean id="txManager"class="org.springframework.orm.hibernate3.HibernateTransactionManager"><property name="sessionFactory" ref="sessionFactory" /></bean><aop:config><aop:pointcut id="bussinessService"expression="execution(public * com.bjsxt.service..*.*(..))" /><aop:advisor pointcut-ref="bussinessService"advice-ref="txAdvice" /></aop:config><tx:advice id="txAdvice" transaction-manager="txManager"><tx:attributes><tx:method name="getUser" read-only="true" /><tx:method name="add*" propagation="REQUIRED"/></tx:attributes></tx:advice> 事務(wù)XML配置 <filter><filter-name>encodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>GBK</param-value></init-param></filter> 編碼設(shè)置CharacterEncodingFilter 1 <filter> 2 <filter-name>openSessionInView</filter-name> 3 <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class> 4 <init-param> 5 <param-name>singleSession</param-name> 6 <param-value>true</param-value> 7 </init-param> 8 <init-param> 9 <param-name>sessionFactoryBeanName</param-name> 10 <param-value>sf</param-value> 11 </init-param> 12 <init-param> 13 <param-name>flushMode</param-name> 14 <param-value>AUTO</param-value> 15 </init-param> 16 </filter> 發(fā)起一個頁面請求時打開Hibernate的Session

三、實例化容器

1、java實例化容器

ApplicationContext context = new ClassPathXmlApplicationContext("classpath:/spring/products.xml");

?2、web配置

<listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:beans.xml</param-value></context-param>

四、spring mvc

http://elf8848.iteye.com/blog/875830/

轉(zhuǎn)載于:https://www.cnblogs.com/Nadim/p/4724875.html

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