1.2 一般只要導(dǎo)入核心的jar就好了，最后還要導(dǎo)入支持日志輸出的jar包。創(chuàng)建類，并添加相應(yīng)的方法 
創(chuàng)建spring相關(guān)的配置文件 3.1 名字可以自己取，建議使用applicationContext,位置也是不固定的，建議位于src下。 3.2 配置對象創(chuàng)建
<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd"> <bean id="user" class="com.renwen.user.User"></bean></beans>進(jìn)行測試
bean實(shí)例化的三種方式： 1.1 使用無參的構(gòu)造函數(shù)進(jìn)行創(chuàng)建（重點(diǎn)）： 
1.2 使用靜態(tài)工廠進(jìn)行創(chuàng)建：即靜態(tài)方法返回類對象 
1.3 使用實(shí)例工程進(jìn)行創(chuàng)建：即實(shí)例方法返回類對象 
bean標(biāo)簽常用的屬性： 2.1 id屬性：可以通過id來得到某個(gè)類的實(shí)例對象。 2.2 class屬性：配置對象所在的全路徑。 2.3 name屬性：和id的功能基本相同，但是id的命名不可以有特殊符號(hào)，但是name屬性可以，且name屬性可以為同一個(gè)bean配置多個(gè)名字（基本不用了）。 2.4 scope屬性：singleton:單例的且是默認(rèn) prototype:多例
屬性注入：創(chuàng)建對象的時(shí)候，向類里面的屬性設(shè)置相應(yīng)的值。 3.1 使用屬性的setter方法進(jìn)行注入(重點(diǎn)) 
3.2 有參數(shù)的構(gòu)造函數(shù)的方法進(jìn)行注入 
對象注入：
public class Dao { public void add() { System.out.println("dao add"); }}public class Service { private Dao dao; public void add() { System.out.println("add...."); dao.add(); } public void setDao(Dao dao) { this.dao = dao; }}<bean id="dao" class="com.renwen.test.Dao"></bean><bean id="service" class="com.renwen.test.Service"> <property name="dao" ref="dao"></property></bean>p名稱空間的注入： 5.1 第一步引入p名稱空間的約束
public class User { private String uname; public void show(){ System.out.println(uname); } public void setUname(String uname){ this.uname=uname; }}<bean id="service" class="com.renwen.test.Service"> <property p:uname="zhao"></property></bean>注入負(fù)責(zé)數(shù)據(jù)類型（數(shù)組，list,map,properties）
public class User { private String[]array; private Map<String,String>map; private List<String>list; private Properties properties; public void setArray(String[] array) { this.array = array; } public void setMap(Map<String, String> map) { this.map = map; } public void setList(List<String> list) { this.list = list; } public void setProperties(Properties properties) { this.properties = properties; } public void test() { for(String str:array){ System.out.println(str); } for(String str:list){ System.out.println(str); } Set<String>keySet=map.keySet(); Iterator<String>it=keySet.iterator(); while(it.hasNext()){ System.out.println(map.get(it.next())); } System.out.println(properties); }}<bean id="user" class="com.renwen.user.User"> <!-- 數(shù)組注入 --> <property name="array"> <array> <value>zhangsan1</value> <value>zhangsan2</value> <value>zhangsan3</value> </array> </property> <!-- list注入 --> <property name="list"> <list> <value>lisi1</value> <value>lisi2</value> <value>lisi3</value> </list> </property> <!-- map注入 --> <property name="map"> <map> <entry key="lisi1" value="zhangsan1"></entry> <entry key="lisi2" value="zhangsan2"></entry> <entry key="lisi3" value="zhangsan3"></entry> </map> </property> <!--property注入--> <property name="properties"> <props> <prop key="url">jdbc:MySQL:/127.0.0.1</prop> <prop key="username">root</prop> </props> </property></bean>加載spring核心配置文件，根據(jù)核心配置文件來進(jìn)行創(chuàng)建對象。
ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");但是效率比較差，解決方法可以在服務(wù)器啟動(dòng)的時(shí)候進(jìn)行創(chuàng)建，并加載spring配置文件。
實(shí)現(xiàn)原理： 2.1 使用ServletContext對象 2.2 使用監(jiān)聽器 2.3 具體使用： 在服務(wù)器啟動(dòng)的時(shí)候會(huì)為我們創(chuàng)建一個(gè)唯一的servletContext對象，然后通過ServletContextListener來監(jiān)聽servletContext的產(chǎn)生，在該對象創(chuàng)建之前，可以創(chuàng)建配置文件加載的對象，然后將該對象放入context域中。注解創(chuàng)建對象：
@Component(value="user")@Scope(value="prototype")//多實(shí)例public class User { public void show(){ System.err.println("show...."); }}public class TestSpring { @Test public void test(){ ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml"); User user=(User) ac.getBean("user"); user.show(); }}4 創(chuàng)建對象4個(gè)常用注解： 4.1 @Component 4.2 @Controller WEB層 4.3 @Service service層 4.4 @Respository dao層 目前這四個(gè)注解的功能都一樣，創(chuàng)建對象
屬性注入： 5.1 使用注解的方法進(jìn)行注入的時(shí)候，不需要setter方法 5.2 autowired進(jìn)行注入
@Repository(value="dao")public class Dao { public void add() { System.out.println("dao add"); }}@Component("service")public class Service { @Autowired private Dao dao; public void add() { System.out.println("service add...."); dao.add(); }}5.3 Resource進(jìn)行注入
@Repository(value="dao") public class Dao { public void add() { System.out.println("dao add"); }}@Component("service")public class Service { @Resource(name="dao") private Dao dao; public void add() { System.out.println("service add...."); dao.add(); }}5.4 注解與配置文件混合使用：
public class Dao { public void add() { System.out.println("dao add");}public class OrderDao { public void buy() { System.out.println("Order buy...."); }}public class Service { @Resource(name="dao") private Dao dao; @Resource(name="orderDao") private OrderDao orderDao; public void add() { System.out.println("service add...."); dao.add(); orderDao.buy(); }}<bean id="dao" class="com.renwen.test.Dao"></bean><bean id="orderDao" class="com.renwen.test.OrderDao"></bean><bean id="service" class="com.renwen.test.Service"></bean>
使用aspectj實(shí)現(xiàn)aop的兩種方式 3.1 基于xml 
環(huán)繞增強(qiáng)：
public class MyBook { public void around(ProceedingJoinPoint point) throws Throwable{ System.out.println("前"); point.proceed(); System.out.println("后"); }}<aop:config><!--配置切入點(diǎn)--><aop:pointcut expression="execution(* com.renwen.aop.Book.add(..))" id="addcut"/><!--配置切面--><aop:aspect ref="mybook"> <!-- <aop:before method="before1" pointcut-ref="addcut"/> --> <aop:around method="around" pointcut-ref="addcut"/></aop:aspect>3.2 基于注解
log4j.properties
log4j.rootLogger=INFO, CONSOLE, FILE ## for console log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout log4j.appender.CONSOLE.layout.ConversionPattern=%d{MM-ddHH:mm:ss}[%c-%L][%t][%-4r] - %m%n ## for file log4j.appender.FILE=org.apache.log4j.RollingFileAppender log4j.appender.FILE.File=D:/logs/log4j.log log4j.appender.FILE.MaxFileSize=1MB log4j.appender.FILE.Append = true log4j.appender.FILE.layout=org.apache.log4j.PatternLayout log4j.appender.FILE.layout.ConversionPattern=%d{yyyy-MM-ddHH:mm:ss} [%t] %-5p %c(line-%L) %-4r %x - %m%n開啟aop掃描。
<aop:aspectj-autoproxy></aop:aspectj-autoproxy>在增強(qiáng)的類上面使用注解來完成aop的操作。注解設(shè)置
@Aspectpublic class MyBook { @Before("execution(* com.renwen.aop.Book.add(..))") public void before1(){ System.out.println("前置增強(qiáng)..."); }}相關(guān)操作
public class DataSource { private static DriverManagerDataSource dataSource=null; static{ dataSource=new DriverManagerDataSource(); dataSource.setDriverClassName("com.mysql.jdbc.Driver"); dataSource.setUrl("jdbc:mysql://localhost:3306/hibernate"); dataSource.setPassWord("zhaoliyou"); dataSource.setUsername("root"); } public static DriverManagerDataSource getDataSource(){ return dataSource; }}3. 相關(guān)操作： public class JdbcTemplateTest { private static DriverManagerDataSource dataSource=DataSource.getDataSource(); @Test public void add(){ JdbcTemplate template=new JdbcTemplate(dataSource); String sql="insert into user(uname,pwd) values(?,?)"; int rows=template.update(sql,"zhangsan","123"); System.out.println(rows); } @Test public void update(){ JdbcTemplate template=new JdbcTemplate(dataSource); String sql="update user set uname=? where uname=?"; int rows=template.update(sql,"lisi","zhangsan"); System.out.println(rows); } @Test public void delete(){ JdbcTemplate template=new JdbcTemplate(dataSource); String sql="delete from user where uname=?"; int rows=template.update(sql,"lisi"); System.out.println(rows); } //對于結(jié)果集的處理，jdbctemplate有自己的接口RowMapper,但是需要自己進(jìn)行實(shí)現(xiàn) @Test public void query(){ JdbcTemplate template=new JdbcTemplate(dataSource); //查詢返回一個(gè)值 String sql="select count(*) from user"; int rows=template.queryForObject(sql, Integer.class); System.out.println(rows); //返回某個(gè)對象 String sql2="select * from user where uname=?"; User user=template.queryForObject(sql2, new UserMapper(),"zhangsan"); System.out.println(user); //返回List集合 String sql3="select * from user"; List<User>list=template.query(sql2, new UserMapper()); System.out.println(list); }}class UserMapper implements RowMapper<User>{ @Override public User mapRow(ResultSet rs, int arg1) throws SQLException { String uname=rs.getString("uname"); String pwd=rs.getString("pwd"); User user=new User(); user.setPwd(pwd); user.setUname(uname); return user; }}原始配置c3p0： 
spring進(jìn)行事務(wù)管理的一些api操作： 2.1 PlatformTransactionManger:事務(wù)管理器 
不同的持久層框架有不同的事務(wù)管理器 2.2 TransactionDefinition:事務(wù)定義信息 2.3 TransactionStatus :事務(wù)運(yùn)行狀態(tài) 3.xml事務(wù)管理：
注解配置事務(wù)： 4.1 配置事務(wù)管理器 4.2 開始事務(wù)注解掃描 4.3 在需要事務(wù)處理的方法或者類上加 @Transational
<!-- 配置事務(wù)管理器 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property></bean><!--開啟事務(wù)注解 --><tx:annotation-driven transaction-manager="transactionManager"/>@Transactionalpublic void changeMoney(Accountant accountant1,Accountant accountant2,double money){ orderDao.addMoney(accountant1, money); int num=1/0; orderDao.lessMoney(accountant2, money);}
spring整合struts2 2.1 記得導(dǎo)入struts2.spring-plugin和spring-web包 2.2 配置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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>ssh</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> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param></web-app>2.3 配置applicationContext.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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.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"> <bean id="userAction" class="com.renwen.action.UserAction" scope="prototype"></bean></beans>2.4 配置struts.xml
<struts> <package name="mypack" extends="struts-default" namespace="/"> <action name="userAction" class="userAction"> <result name="ok">/index.jsp</result> </action> </package></struts>spring 整合hibernate 3.1 把我們的數(shù)據(jù)庫的基本信息在spring進(jìn)行配置。 3.2 sessionfactory在spring中進(jìn)行創(chuàng)建。 3.3 注意需要spring-orm的jar
action
package com.renwen.action;import com.opensymphony.xwork2.ActionSupport;import com.opensymphony.xwork2.ModelDriven;import com.renwen.entity.User;import com.renwen.service.UserService;public class UserAction extends ActionSupport implements ModelDriven<User>{ private User user=new User(); private UserService userService; @Override public String execute() throws Exception { userService.change(1, 2, 50); return "ok"; } public void setUserService(UserService userService) { this.userService = userService; } public User getUser() { return user; } public void setUser(User user) { this.user = user; } @Override public User getModel() { // TODO Auto-generated method stub return user; }}service
package com.renwen.service;import org.springframework.transaction.annotation.Transactional;import com.renwen.dao.UserDao;import com.renwen.entity.User;public class UserService { private UserDao userDao; public void setUserDao(UserDao userDao) { this.userDao = userDao; } @Transactional public void change(int id1,int id2,int money){ userDao.add(id1, 50); int num=1/0; userDao.less(id2, 50); }}dao
package com.renwen.dao;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.springframework.orm.hibernate3.HibernateTemplate;import org.springframework.transaction.annotation.Transactional;import com.renwen.entity.Accountant;import com.renwen.entity.User;public class UserDao { private SessionFactory sessionFactory; public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } public void add(int id,int money){ Session session=sessionFactory.getCurrentSession(); Accountant accountant=(Accountant) session.get(Accountant.class, id); accountant.setBalance(accountant.getBalance()+money); session.save(accountant); } public void less(int id,int money){ Session session=sessionFactory.getCurrentSession(); Accountant accountant=(Accountant) session.get(Accountant.class, id); accountant.setBalance(accountant.getBalance()-money); session.save(accountant); }}entity:
package com.renwen.entity;public class Accountant { private int id; private String uname; private double balance; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public double getBalance() { return balance; } public void setBalance(double balance) { this.balance = balance; }}hibernate.cfg.xml配置文件：
<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><!-- Generated by MyEclipse Hibernate Tools. --><hibernate-configuration> <session-factory> <property name="hibernate.show_sql">true</property> <!-- 格式化輸出sql語句 --> <property name="hibernate.format_sql">true</property> <!-- update如果有這個(gè)表了，就會(huì)更新，否則就會(huì)創(chuàng)建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 數(shù)據(jù)庫方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> <!-- 把映射文件放到核心配置文件中 --> <mapping resource="com/renwen/entity/User.hbm.xml"/> <mapping resource="com/renwen/entity/Accountant.hbm.xml"/> </session-factory></hibernate-configuration><?xml version="1.0"?>Accountant.hbm.xml
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping> <class name="com.renwen.entity.Accountant" table="accountant"> <id name="id" column="id"> <generator class="native"></generator> </id> <property name="uname" column="uname"></property> <property name="balance" column="balance"></property> </class></hibernate-mapping>applicationContext.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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.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"> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/hibernate"></property> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="user" value="root"></property> <property name="password" value="zhaoliyou"></property> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource"><ref bean="dataSource" /></property> <property name="configLocations" value="classpath:hibernate.cfg.xml"></property> </bean> <bean id="userService" class="com.renwen.service.UserService"> <property name="userDao" ref="userDao"></property> </bean> <bean id="userAction" class="com.renwen.action.UserAction" scope="prototype"> <property name="userService" ref="userService"></property> </bean> <bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory"></property> </bean> <tx:annotation-driven transaction-manager="hibernateTransactionManager" /></beans>新聞熱點(diǎn)
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