搭建第一个web项目：Struts+hibernate+spring配置（annotation）

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
 4     "http://struts.apache.org/dtds/struts-2.0.dtd">
 5 
 6 <struts>
 7 
 8     <constant name="struts.enable.DynamicMethodInvocation" value="false" />
 9     <!-- 配置为开发模式 -->
10     <constant name="struts.devMode" value="true" />
11 
12     <!-- 配置后缀名为。action -->
13     <constant name="struts.action.extension" value="action,do" />
14 
15     <!-- 配置主题为simple 自己控制样式 -->
16     <constant name="struts.ui.theme" value="simple" />
17     
18     <!-- 默认所有的结果页面都存储在WEB-INF/content下，通过这个属性的值来改变到其他路径。 -->
19     <constant name="struts.convention.result.path" value="/jsp"/>
20     
21     <!-- 默认包路径包含action,actions,struts,struts2的所有包都会被struts作为含有Action类的路径来搜索。可以通过设置这个属性来修改这个配置。 -->
22     <constant name="struts.convention.package.locators" value="action"/>
23 
24     <!-- Add packages here -->
25 
26 </struts>

 1 <!DOCTYPE hibernate-configuration PUBLIC
 2         "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 3         "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
 4 
 5 <hibernate-configuration>
 6 <session-factory>
 7     <!--数据库连接信息  -->
 8     <!-- <property name="dialect">org.hibernate.dialect.MySQl5InnoDBDialect</property>
 9         <property name="connection.driver_class">com.jdbc.mysql.Driver</property>
10         <property name="connection.username">root</property>
11         <property name="connection.password">123456</property>
12         <property name="connection.url">jdbc:mysql://localhost:3306/itcastoa0720</property> -->
13     <!--其他配置  -->
14     
15     <property name="hbm2ddl.auto">update</property>
16     <property name="show_sql">true</property>
17     <property name="format_sql">true</property>
18      <!-- javax.persistence.validation.mode默认情况下是auto的，就是说如果不设置的话它是会自动去你的classpath下面找一个
19   bean-validation**包，但是找不到，所以beanvalitionFactory错误 -->
20     <property name="javax.persistence.validation.mode">none</property>
21 
22 </session-factory>
23 </hibernate-configuration>

 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:context="http://www.springframework.org/schema/context"
 5     xmlns:tx="http://www.springframework.org/schema/tx"
 6     xsi:schemaLocation="http://www.springframework.org/schema/beans 
 7                 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
 8                 http://www.springframework.org/schema/context 
 9                 http://www.springframework.org/schema/context/spring-context-2.5.xsd
10                 http://www.springframework.org/schema/tx 
11                 http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
12 
13     <!-- 使用注解annotation必须添加的一项 -->
14     <context:annotation-config/>
15     <!-- 自动扫描与装配bean对象 子包和多包都可以 -->
16     <context:component-scan base-package="com.itcast.oa"></context:component-scan>
17 
18     <!-- 导入外部的properties文件 -->
19     <context:property-placeholder location="classpath:jdbc.properties" />
20 
21     <!-- 配置sessionFactory (默认是单例的)(原来是LocalSessionFactoryBean这个类 改成注解形式变成下面的类) -->
22     <bean id="sessionFactory"
23         class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
24         
25         <!-- 指定hibernate配置文件路径 -->
26         <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
27         
28         <!-- 针对注解，找到它的实体类们 -->
29         <property name="packagesToScan">
30             <list>
31                 <value>com.itcast.oa.domain</value>
32             </list>
33         </property>
34         
35         <!-- 配置c3p0数据库连接池 -->
36         <property name="dataSource">
37             <!-- 匿名bean 只给datasource用的 不用写id name (通过反射调用默认构造方法构造bean) -->
38             <bean class="com.mchange.v2.c3p0.ComboPooledDataSource">
39                 <!-- 数据连接信息 （通过该对象的getset的方法注入属性） -->
40                 <property name="jdbcUrl" value="${jdbcUrl}"></property>
41                 <property name="driverClass" value="${driverClass}"></property>
42                 <property name="user" value="${user}"></property>
43                 <property name="password" value="${password}"></property>
44                 <!-- 其他配置（数据库连接池的个数等） -->
45                 <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
46                 <property name="initialPoolSize" value="3"></property>
47                 <!--连接池中保留的最小连接数。Default: 3 -->
48                 <property name="minPoolSize" value="3"></property>
49                 <!--连接池中保留的最大连接数。Default: 15 -->
50                 <property name="maxPoolSize" value="5"></property>
51                 <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
52                 <property name="acquireIncrement" value="3"></property>
53                 <!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 
54                     0 -->
55                 <property name="maxStatements" value="8"></property>
56                 <!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 
57                     0 -->
58                 <property name="maxStatementsPerConnection" value="5"></property>
59                 <!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
60                 <property name="maxIdleTime" value="1800"></property>
61             </bean>
62         </property>
63     </bean>
64 
65     <!-- 配置声明式事务管理（采用注解方式） -->
66     <bean id="txManager"
67         class="org.springframework.orm.hibernate3.HibernateTransactionManager">
68         <property name="sessionFactory" ref="sessionFactory"></property>
69     </bean>
70     <!-- 注解驱动 -->
71     <tx:annotation-driven transaction-manager="txManager" />
72 </beans>

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 5     http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
 6     <display-name></display-name>
 7     <welcome-file-list>
 8         <welcome-file>index.jsp</welcome-file>
 9     </welcome-file-list>
10 
11     <!-- 配置spring用于初始化容器对象的监听器 -->
12     <listener>
13         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
14     </listener>
15     <context-param>
16         <param-name>contextConfigLocation</param-name>
17         <param-value>classpath:applicationContext*.xml</param-value>
18     </context-param>
19 
20     <!-- 配置Struts2核心过滤器 -->
21     <filter>
22         <filter-name>struts2</filter-name>
23         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
24     </filter>
25 
26     <filter-mapping>
27         <filter-name>struts2</filter-name>
28         <url-pattern>/*</url-pattern>
29     </filter-mapping>
30 
31 </web-app>

 1 package com.itcast.oa.action;
 2 
 3 import org.apache.struts2.convention.annotation.Action;
 4 import org.apache.struts2.convention.annotation.Namespace;
 5 import org.apache.struts2.convention.annotation.ParentPackage;
 6 import org.apache.struts2.convention.annotation.Result;
 7 
 8 import com.opensymphony.xwork2.ActionSupport;
 9 
10 @Namespace("/")
11 @ParentPackage("struts-default")
12 @Action(value = "/testAction", results = { @Result(name = "input", location = "test.jsp") })
13 public class TestAction extends ActionSupport {
14 
15     private static final long serialVersionUID = 1L;
16 
17     @Override
18     public String execute() throws Exception {
19         System.out.println("TestAction.execute()");
20         return "input";
21 
22     }
23 
24 }

package com.itcast.oa.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.junit.*;

public class SpringTest {
    private ApplicationContext ac = new ClassPathXmlApplicationContext(
            "applicationContext.xml");

    // 测试事务
    @Test
    public void testTransaction() throws Exception {
        TestService testService = (TestService) ac.getBean("testService");
        testService.saveTwouser();
    }
}

package com.itcast.oa.test;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.itcast.oa.domain.User;
@Service("testService")
public class TestService {
    
    @Resource//注入bean的资源，按名称，再按类型
    private SessionFactory sessionFactory;
    
    public void saveTwouser() {
        User user = new User();
        user.setDescription("123");
        user.setName("haojiahong");
        System.out.println("sessionfactoty gogogogogog===============================");
        Session session = sessionFactory.openSession();
        session.beginTransaction();
        session.save(user);
        session.getTransaction().commit();
        System.out.println("user saved=====================");
    }
}

package com.itcast.oa.domain;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "my_user")
public class User {
    @Id
    @GeneratedValue
    @Column(name = "USER_ID")
    private int id;
    @Column(name = "USER_NAME")
    private String name;
    @Column(name = "USER_DESCRIPTION")
    private String description;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

}

sessionfactoty gogogogogog===============================
Hibernate: 
    insert 
    into
        my_user
        (USER_DESCRIPTION, USER_NAME) 
    values
        (?, ?)
user saved=====================