The use of Spring4-el in the expression of Zheng-zhong

1. Create a MAVEN project, project name Springdemo48,

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2. Configure Maven, modify the Pom.xml file in the project, modify the content as follows

<project xmlns= "http://maven.apache.org/POM/4.0.0"  xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance " xsi:schemalocation=" http://maven.apache.org/POM/4.0.0 http://maven.apache.org/ Xsd/maven-4.0.0.xsd ">  <modelVersion>1.0.0</modelVersion>  <groupId> Shequ</groupid>  <artifactid>springdemo13</artifactid>  <version> 0.0.1-snapshot</version>    <properties>  <java.version>1.7 </java.version>  <project.build.sourceencoding>utf-8</project.build.sourceencoding >  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>   </properties>    <repositories>  <repository>   <id>codelds</id>  <url>https://code.lds.org/nexus/content/groups/main-repo </url>  </repository&gT;  </repositories>    <dependencies>  <dependency>   <groupid>javax.annotation</groupid>  <artifactid>jsr250-api</ artifactid>  <version>1.0</version>  </dependency>     <dependency>  <groupId>org.springframework</groupId>  < artifactid>spring-test</artifactid>  <version>4.1.4.release</version>   </dependency>    <dependency>  <groupid>junit</ Groupid>  <artifactid>junit</artifactid>  <version>4.10</version >  </dependency>    <dependency>  <groupId> org.springframework</groupid>  <artifactid>spring-core</artifactid>   <version>4.1.4.release</version>  </dependency>    <dependency>         <groupId>org.springframework</groupId>         <artifactid>spring-context</artifactid>        <version >4.1.4.RELEASE</version>    </dependency>         <dependency>        <groupId> Org.springframework</groupid>        <artifactid> spring-jdbc</artifactid>        <version>4.1.4.release< /version>    </dependency>        < dependency>        <groupid>mysql</groupid>         <artifactid>mysql-connector-java</artifactid>        < version>5.1.34</version>    </dependency>          </dependencies>  <build/></project>

3. Create the entity bean under Src/main/java Customer, package name (Com.mycompany.shequ.bean)

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4. The content of the entity Bean Customer is as follows

package com.mycompany.shequ.bean;import org.springframework.beans.factory.annotation.value;import  org.springframework.stereotype.Component; @Component ("Customerbean") public class customer  {private string name;private string email;public string getname ()  {return  name;} Public void setname (String name)  {this.name = name;} Public string getemail ()  {return email;} @Value ("#{(' [email protected] '  matches  ' ^[_a-za-z0-9-]+ (\\.[ _a-za-z0-9-]+) " +" *@[a-za-z0-9]+ (\\.[ a-za-z0-9]+) * (\\.[ A-za-z]{2,}) $ ')  ?  ' [email protected] ': ' Illegal '} ') Public void setemail (String email)  {this.email = email;}} 
 

5. Under Src/main/resource, create the core configuration file Applicationcontext.xml,

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6. The content of the core configuration file Applicationcontext.xml is as follows

<beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "xmlns:p=" http://www.springframework.org/schema/p "xmlns:context="/HTTP/ Www.springframework.org/schema/context "xmlns:util=" Http://www.springframework.org/schema/util "xsi: Schemalocation= "http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/ spring-beans-4.0.xsdhttp://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/ spring-util-4.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/ Spring-context-4.0.xsd "><context:component-scan base-package=" Com.mycompany.shequ.bean "/></beans >

7. Create a test file under Src/test/java apptest, package name (com.mycompany.shequ.test)

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8. The contents of the test file apptest are as follows

Package Com.mycompany.shequ.test;import Org.junit.test;import Org.springframework.context.configurableapplicationcontext;import Org.springframework.context.support.classpathxmlapplicationcontext;import Com.mycompany.shequ.bean.Customer; public class Apptest {@Testpublic void Beantest () {Configurableapplicationcontext context = new Classpathxmlapplica Tioncontext ("Applicationcontext.xml"); Customer customer = (customer) Context.getbean ("Customerbean"); System.out.println (Customer.getemail ());}}

9. Right-click on the Beantest method of the test class apptest and output the result

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This article from the "Vegetarian Yan" blog, declined to reprint!

The use of Spring4-el in the expression of Zheng-zhong