关闭钩实例 : 映射关机 « Spring « Java

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Java 教程
Java » Spring » 映射关机屏幕截图 
关闭钩实例


/*
Pro Spring
By Rob Harrop
Jan Machacek
ISBN: 1-59059-461-4
Publisher: Apress
*/



///////////////////////////////////////////////////////////////////////////////////////
//File: disposeInterface.xml

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="destructiveBean" class="DestructiveBeanWithInterface">
        <property name="filePath">
            <value>c:/test.txt</value>
        </property>
    </bean>
</beans>

///////////////////////////////////////////////////////////////////////////////////////

import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;

public class ShutdownHook implements Runnable {

    private ConfigurableListableBeanFactory factory;
    
    public ShutdownHook(ConfigurableListableBeanFactory factory) {
        this.factory = factory;
    }
    
    public void run() {
        System.out.println("Destroying Singletons");
        factory.destroySingletons();
        System.out.println("Singletons Destroyed");
    }
    
}

///////////////////////////////////////////////////////////////////////////////////////

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;

public class DestructiveBeanWithInterface implements InitializingBean,
        DisposableBean {

    private InputStream is = null;

    public String filePath = null;

    public void afterPropertiesSet() throws Exception {

        System.out.println("Initializing Bean");

        if (filePath == null) {
            throw new IllegalArgumentException(
                    "You must specify the filePath property of " + DestructiveBean.class);
        }

        is = new FileInputStream(filePath);
    }

    public void destroy() {

        System.out.println("Destroying Bean");

        if (is != null) {
            try {
                is.close();
                is = null;
            catch (IOException ex) {
                System.err.println("WARN: An IOException occured"
                        " trying to close the InputStream");
            }
        }
    }

    public void setFilePath(String filePath) {
        this.filePath = filePath;
    }

    public static void main(String[] argsthrows Exception {
        ConfigurableListableBeanFactory factory = new XmlBeanFactory(
                new FileSystemResource(
                        "build/disposeInterface.xml"));

        DestructiveBeanWithInterface bean = (DestructiveBeanWithInterfacefactory.getBean("destructiveBean");

        System.out.println("Calling destroySingletons()");
        factory.destroySingletons();
        System.out.println("Called destroySingletons()");

    }

}

///////////////////////////////////////////////////////////////////////////////////////
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;

public class DestructiveBean implements InitializingBean {

    private InputStream is = null;

    public String filePath = null;

    public void afterPropertiesSet() throws Exception {

        System.out.println("Initializing Bean");

        if (filePath == null) {
            throw new IllegalArgumentException(
                    "You must specify the filePath property of " + DestructiveBean.class);
        }

        is = new FileInputStream(filePath);
    }

    public void destroy() {

        System.out.println("Destroying Bean");

        if (is != null) {
            try {
                is.close();
                is = null;
            catch (IOException ex) {
                System.err.println("WARN: An IOException occured"
                        " trying to close the InputStream");
            }
        }
    }

    public void setFilePath(String filePath) {
        this.filePath = filePath;
    }

 
}
///////////////////////////////////////////////////////////////////////////////////////


import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.FileSystemResource;

public class ShutdownHookExample {

    public static void main(String[] args) {
        ConfigurableListableBeanFactory factory = new XmlBeanFactory(
                new FileSystemResource(
                        "build/disposeInterface.xml"));

        Runtime.getRuntime().addShutdownHook(
                new Thread(new ShutdownHook(factory)));
        DestructiveBeanWithInterface bean = (DestructiveBeanWithInterfacefactory.getBean("destructiveBean");
    }
}

           
       
ShutdownHookExample.zip( 1,201 k)
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