spring mvc dependency

com.atguigu.spring.beans.annotation.test; Import Org.springframework.stereotype.Controller; @Controller // Identify presentation layer components Public class Usercontroller { publicvoid Test () { System.out.println (" panpan789 ");} }The above classes are built under the package com.atguigu.spring.beans.annotation.test;Spring XML configuration file: Beansannotation.xml, with the above four annotations under a Com.atguigu.spring.bean

();Usbdevice.write (data);Usbdevice.pop ();}public void Setusbdevice (USB u){Usbdevice=u;}}In modifying the configuration file Applicationcontext.xml, instantiate the bean with the following code:lazy-init= "Default" autowire= "Default" >lazy-init= "Default" autowire= "Default"p:usbdevice-ref= "Theudisk" >Finally test the class, get the injected bean, the code is as follows:public class Test {public static void Main (string[] args){ApplicationContext context=new classpathxmlapplicationcontext (

"); System.out.println (people1); People people2= (people) Ac.getbean ("People2"); System.out.println (people2); People people3= (people) Ac.getbean ("People3"); System.out.println (PEOPLE3); People people4= (people) Ac.getbean ("People4"); System.out.println (PEOPLE4); }}Inject static and non-static classespublic class Factory {public people createpeople () { people P=new people (); P.setid (5); P.setname ("smal

Spring relies on checking that the bean profile is used to determine that all properties of a particular type (base, collection, or object) are set. In most cases, you only need to make sure that a specific property has been set but not all properties: In this case, you need to @Required annotations, see the example below: @Required example Customer object, applicable @required in the Setperson () method to ensure that the person property is set.Packa

　　03. Build test Project based on Idea+spring+maven--common dependency

NamespaceListpropertysub.selectnodes (Element); for(Element property:propertys) {String propertyname= Property.attributevalue ("name"); String PropertyRef= Property.attributevalue ("ref"); PropertyDefinition propertydefinition=Newpropertydefinition (PropertyName, PropertyRef); Beandefine.getpropertys (). Add (PropertyDefinition); } beandefines.add (Beandefine); } }Catch(Exception e) {e.printstacktrace (); } } /*** Get Bean instance *@paramBeanname *

Spring Database Connection Pool dependency

ClassLoader is Tomcat's WebappClassLoader, This time we find the path to the resource is an empty string. This class returns two URLs, one is ${webapps}/web-inf/classes, and the other is ${tomcat-home}/lib, strange, incredibly ${webapps }/web-inf/lib is not in the return URL, a bit magical, let's look!Public enumerationThis method is actually webappclassloader directly inherit the classload come over, Parentclassload actually find the time of the classpath of the Tomcat container is findresourc

Set-value injection is one of the many dependency injection types supported by spring and the most common one. Setter injection is used to call the setter method after instantiating the managed bean by calling the non-parametric Constructor (or the non-parametric static factory method, or the factory Bean's pipeline static factory method, to establish the dependency