Changes to the Bean acquisition method after the 3.1 version of Spring

The XML configuration is unchanged, as follows

<?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-2.0.xsd "><bean id=" test3 "class=" Org.springframework.tests.sample.beans.TestBean "scope=" prototype "><property name=" name "><value> Custom</value></property><property name= "Age" ><value>25</value></property> </bean></beans>

　　

Before version 3.0

The way to get the bean is to use xmlbeanfactory

@Testpublic void Beantest () {Resource rs2 = new Classpathresource ("Test.xml", aatest.class);  beanfactory bf = new Xmlbeanfactory (RS2); Testbean TB2 = (Testbean) bf.getbean ("Test3"); Assertequals ("Custom", Tb2.getname ());}

　　

After version 3.1, for some reason, xmlbeanfactory was discarded, and if re-used, it would show

The type xmlbeanfactory is deprecated

The method of obtaining the bean in the source code is as follows

@Testpublic void BeanTest2 () {Resource rs = new Classpathresource ("Test.xml", aatest.class);;D Efaultlistablebeanfactory grandparent = new Defaultlistablebeanfactory (); new Xmlbeandefinitionreader (GrandParent). Loadbeandefinitions (RS); Testbean TB = (Testbean) grandparent.getbean ("Test3"); Assertequals ("Custom", Tb.getname ());}

As for the reasons for being abandoned, the following

/** * Convenience extension of {@link defaultlistablebeanfactory} that reads beans definitions * from an XML document. Delegates to {@link xmlbeandefinitionreader} underneath; Effectively * equivalent to using a xmlbeandefinitionreader with a defaultlistablebeanfactory. * * <p>the structure, element and attribute names of the required XML document * is hard-coded in this class. (Of course a transform could is run if necessary * to produce this format). "Beans" doesn ' t need to be the root element of the XML * Document:this class would parse all bean definition elements in t He XML file. * * <p>this class registers each bean definition with the {@link defaultlistablebeanfactory} * superclass, and Relie s on the latter ' s implementation of the {@link beanfactory} interface. * It supports singletons, prototypes, and references to either of these of beans. * See {@code ' spring-beans-3.x.xsd '} (or historically, {@code "SPRING-BEANS-2.0.DTD"}) for * Details on options and CONFIGuration style.  ** <p><b>for advanced needs, consider using a {@link defaultlistablebeanfactory} with * An {@link Xmlbeande Finitionreader}.</b> the latter allows for reading from multiple XML * Resources and are highly configurable in its a Ctual XML parsing behavior.* * @author Rod Johnson * @author Juergen hoeller * @author Chris beams * @since April 2001 * @see Org.springframework. Beans.factory.support.DefaultListableBeanFactory * @see Xmlbeandefinitionreader* @deprecated as of Spring 3.1 in favor of {@link defaultlistablebeanfactory} and * {@link xmlbeandefinitionreader}*/@Deprecated @suppresswarnings ({"Serial", "All"}) public class Xmlbeanfactory extends Defaultlistablebeanfactory {// Code ...}

　　

　

Changes to the Bean acquisition method after the 3.1 version of Spring