吴裕雄--天生自然轻量级JAVA EE企业应用开发Struts2Sping4Hibernate整合开发学习笔记：Spring_FieldRetrievingFactoryBean

<?xml version="1.0" encoding="GBK"?>
<project name="spring" basedir="." default="">
    <property name="src" value="src"/>
    <property name="dest" value="classes"/>

    <path id="classpath">
        <fileset dir="../../lib">
            <include name="**/*.jar"/>
        </fileset>
        <pathelement path="${dest}"/>
    </path>

    <target name="compile" description="Compile all source code">
        <delete dir="${dest}"/>
        <mkdir dir="${dest}"/>
        <copy todir="${dest}">
            <fileset dir="${src}">
                <exclude name="**/*.java"/>
            </fileset>        
        </copy>
        <javac destdir="${dest}" debug="true" includeantruntime="yes"
            deprecation="false" optimize="false" failonerror="true">
            <src path="${src}"/>
            <classpath refid="classpath"/>
            <compilerarg value="-Xlint:deprecation"/>
        </javac>
    </target>

    <target name="run" description="Run the main class" depends="compile">
        <java classname="lee.SpringTest" fork="yes" failonerror="true">
            <classpath refid="classpath"/>
        </java>
    </target>

</project>

<?xml version="1.0" encoding="GBK"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 将指定类的静态Field值定义成容器中的Bean实例-->
    <bean id="theAge1" class=
        "org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
        <!-- targetClass指定访问哪个目标类 -->
        <property name="targetClass" value="java.sql.Connection"/>
        <!-- targetField指定要访问的Field名 -->
        <property name="targetField" value="TRANSACTION_SERIALIZABLE"/>
    </bean>

    <!-- 简化配置
    <util:constant id="theAge1" 
    static-field="java.sql.Connection.TRANSACTION_SERIALIZABLE"/> -->

    <!-- 将指定类的静态Field值定义成容器中的Bean实例 -->
    <bean id="theAge2" class=
        "org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
        <!-- staticField指定访问哪个类的哪个静态Field -->
        <property name="staticField" 
            value="java.sql.Connection.TRANSACTION_SERIALIZABLE"/>
    </bean>

    <bean id="son" class="org.crazyit.app.service.Son">
        <property name="age">
            <!-- 指定java.sql.Connection.TRANSACTION_SERIALIZABLE
                作为调用setAge()方法的参数值 -->
            <bean id="java.sql.Connection.TRANSACTION_SERIALIZABLE" class=
            "org.springframework.beans.factory.config.FieldRetrievingFactoryBean"/>
        </property>
    </bean>

    <!-- 简化配置
    <bean id="son" class="org.crazyit.app.service.Son">
        <property name="age">
            <util:constant
            static-field="java.sql.Connection.TRANSACTION_SERIALIZABLE"/>
        </property>
    </bean> -->
</beans>

package lee;

import org.springframework.context.*;
import org.springframework.context.support.*;

import org.crazyit.app.service.*;
/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class SpringTest
{
    public static void main(String[] args)
    {
        ApplicationContext ctx = new
            ClassPathXmlApplicationContext("beans.xml");
        System.out.println("系统获取theAge1的值："
            + ctx.getBean("theAge1"));
        System.out.println("系统获取theAge2的值："
            + ctx.getBean("theAge2"));
        System.out.println("系统获取son为："
            + ctx.getBean("son"));
    }
}

package org.crazyit.app.service;

/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class Person
{
    private int age;
    private Son son;

    //age属性的setter和getter方法
    public void setAge(int age)
    {
        this.age = age;
    }
    public int getAge()
    {
        return this.age;
    }

    //son属性的setter和getter方法
    public void setSon(Son son)
    {
        this.son = son;
    }
    public Son getSon()
    {
        return this.son;
    }
}

package org.crazyit.app.service;

/**
 * Description:
 * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
 * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class Son
{
    private int age;

    // age的setter方法
    public void setAge(int age)
    {
        this.age = age;
    }

    public String toString()
    {
        return "Son[age= " + age + "]";
    }
}