Spring inject resources

Spring inject resources :To load static resource file by spring injection please have below code.

1. Create bean class name SpringResourceInjection.java

package com.javahonk.di.bean;

import org.springframework.core.io.Resource;

public class SpringResourceInjection {

    private Resource textFile;

    public void setTextFile(Resource textFile) {
	this.textFile = textFile;
    }

    public Resource getTextFile() {
	return textFile;
    }
}

 

2. Create ResourceTestFile.txt which we are going to read and enter below line for test to read:

Resource test = Successfull

 

3. Create context file name: springResourceContext.xml with include bean definition shown below:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean id="resourceInjection" class="com.javahonk.di.bean.SpringResourceInjection">
	<property name="textFile" value="spring/ResourceTestFile.txt"></property>
</bean>

</beans>

 

4. Create java main class to load context file and get bean to read resource file:

package com.javahonk;

import java.io.InputStream;
import java.util.Scanner;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.Resource;

import com.javahonk.di.bean.SpringResourceInjection;

public class ReadSpringResourceFile {
    public static void main(String[] args) throws Exception {
	ApplicationContext applicationContext = new ClassPathXmlApplicationContext(
		"spring/springResourceContext.xml");
	InputStream inputStream = null;
	Scanner scanner = null;
	try {

	    SpringResourceInjection springResourceInjection = applicationContext
		    .getBean("resourceInjection",
			    SpringResourceInjection.class);

	    Resource springBeanInjectedResource = springResourceInjection
		    .getTextFile();
	    inputStream = springBeanInjectedResource.getInputStream();
	    scanner = new Scanner(inputStream);
	    while (scanner.hasNext()) {
		System.out.println(scanner.nextLine());
	    }

	} finally {
	    if (inputStream != null) {
		inputStream.close();
	    }
	    if (null != scanner) {
		scanner.close();
	    }
	}
    }

}

 

5. Final project snap shot:

Spring inject resources

6. Finally we are ready to run main class which will read spring\ResourceTestFile.txt and print output on console. To Run –> Right click ReadSpringResourceFile.java –> Run As –> Java Appliction then you will below output on console:

Spring inject resources

7. That’s it.

Spring inject resources Download project : Spring inject resources

 

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