Constructor Confusion Demo : Constructor Injection « Spring « Java Tutorial

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Java Tutorial » Spring » Constructor Injection   28. 9. 2. Constructor Confusion Demo File: context.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"        xsi:schemaLocation="                 http://www.springframework.org/schema/beans                 http://www.springframework.org/schema/beans/spring-beans.xsd">     <bean id="constructorConfusion" class="ConstructorConfusionDemo">         <constructor-arg value="1" type="int"/>     </bean> </beans> File: Main.java import org.springframework.beans.factory.BeanFactory; import org.springframework.beans.factory.xml.XmlBeanFactory; import org.springframework.core.io.ClassPathResource; public class Main {   public static void main(String[] args) {     BeanFactory factory = new XmlBeanFactory(new ClassPathResource(         "context.xml"));     ConstructorConfusionDemo cc = (ConstructorConfusionDemo) factory         .getBean("constructorConfusion");     System.out.println(cc);   } } class ConstructorConfusionDemo {   private String someValue;   public ConstructorConfusionDemo(String someValue) {     System.out.println("ConstructorConfusionDemo(String) called");     this.someValue = someValue;   }   public ConstructorConfusionDemo(int someValue) {     System.out.println("ConstructorConfusionDemo(int) called");     this.someValue = "Number: " + Integer.toString(someValue);   }   public String toString() {     return someValue;   } }   Download:  Spring-ConstructorConfusionDemo.zip( 2,599 k) 28. 9. Constructor Injection 28. 9. 1.  XML Based Bean Configuration: Constructor Injection 28. 9. 2.  Constructor Confusion Demo 28. 9. 3.  Constructor Caller In Context Config 28. 9. 4.  Constructor Argument And Local Reference