Use of Spring Init-method and Destroy-method

Use of Spring Init-method and Destroy-method

　

　　Spring provides both the Init-method and Destroy-method properties, which need to be loaded in the bean node, to accommodate some of the business that the developer needs to do before or after the execution of a certain method.

In the code section below, for completeness, I've added IOC and dependency injection

First, we create an interface Studentservice.java

1  PackageCn.demo.service;2 3 /**4 * Interface5  * @authorXkjava6 * @date 2015-07-127  */8  Public InterfaceStudentservice {9     Ten      Public voidhellospring (String str); One  A}

　　

Second,Studentserviceimpl.java realization Class

1  PackageCn.demo.service.impl;2 3 Importjava.io.Serializable;4 5 ImportCn.demo.service.StudentService;6 7  Public classStudentserviceimplImplementsstudentservice,serializable{8 9     Ten     /** One      *  A      */ -     Private Static Final LongSerialversionuid = 6130145558179499205L; -  the      -     /** - * Demo Test -      */ + @Override -      Public voidhellospring (String str) { +         //TODO auto-generated Method Stub ASystem.err.println ("Do this here") +str); at     } -      -     /** - * Execute hellospring before executing -      */ -      Public voidinits () { inSystem.err.println ("This is done before executing hellospring!") "); -     } to      +      -     /** the * Called before destroying objects *      */ $      Public voidshutdown () {Panax NotoginsengSYSTEM.ERR.PRINTLN ("Call Shutdown () method before destroying Studentservice object instance")); -     } the  +}

Three, Spring XML file

1 <?XML version= "1.0" encoding= "UTF-8"?>2 <Beansxmlns= "Http://www.springframework.org/schema/beans"3 Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"4 Xmlns:tx= "Http://www.springframework.org/schema/tx"Xmlns:context= "Http://www.springframework.org/schema/context"5 xsi:schemalocation="  6 Http://www.springframework.org/schema/context7 http://www.springframework.org/schema/context/spring-context-3.0.xsd8 Http://www.springframework.org/schema/beans9 http://www.springframework.org/schema/beans/spring-beans-3.0.xsdTen Http://www.springframework.org/schema/tx One http://www.springframework.org/schema/tx/spring-tx-3.0.xsd A HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP - http://www.springframework.org/schema/aop/spring-aop-3.0.xsd "> -          the     <!--Note the method names and Studentserviceimpl.java that are loaded by Init-method and Destroy-method are compared -     -     <BeanID= "Stu"class= "Cn.demo.service.impl.StudentServiceImpl"Init-method= "Inits"Destroy-method= "Shutdown"></Bean> -  - </Beans>

Four, Testdemo.java test class

1  Packagecn.demo.test;2 3 Importjava.io.Serializable;4 5 Importorg.springframework.beans.factory.annotation.Autowired;6 ImportOrg.springframework.context.ApplicationContext;7 ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;8 9 ImportCn.demo.service.StudentService;Ten  One /** A * Test -  * @authorXkjava -  * the  */ -  Public classTestdemoImplementsSerializable { -  -      +     /** -      *  +      */ A     Private Static Final LongSerialversionuid = 6343872716391435079L; at      -  -     /** - * Main entrance -      */ -      Public Static voidMain (string[] args) { in          -          toApplicationContext context =NewClasspathxmlapplicationcontext (Newstring[]{"Applicationcontext.xml"}); +          -Studentservice Studentservice = Context.getbean ("Stu", Studentservice.class); the          *Studentservice.hellospring ("hello! spring! "); $         Panax Notoginseng         //destroying Studentservice instance objects - ( (Classpathxmlapplicationcontext) context). Close ();  the          +     } A}

Attention:

after the execution is complete , you need to   ( (Classpathxmlapplicationcontext) context). Close (); Close to execute Destroy-method

Use of Spring Init-method and Destroy-method