Spring4-el getting elements from the MAP and list

1. Create a MAVEN project, project name Springdemo47,

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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 Forum, package name (Com.mycompany.shequ.bean) under Src/main/java

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4. Entity Bean Forum content is as follows

Package Com.mycompany.shequ.bean;import Org.springframework.beans.factory.annotation.value;import org.springframework.stereotype.Component; @Component ("Forumbean") public class Forum {private int fid;private String Name;private string Listname;public string Getlistname () {return listname;} @Value ("#{forumpostbean.lists[0]}") public void Setlistname (String listname) {this.listname = ListName;} public int Getfid () {return FID;} public void Setfid (int fid) {this.fid = FID;} Public String GetName () {return name;} @Value ("#{forumpostbean.maps[' Map1 '}") public void SetName (String name) {this.name = name;}}

5. Create the entity Bean Forumpost under Src/main/java, package name (Com.mycompany.shequ.bean)

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6. The contents of the entity Bean Forumpost are as follows

Package com.mycompany.shequ.bean;import java.util.arraylist;import java.util.hashmap;import  java.util.List;import java.util.Map;import org.springframework.stereotype.Component; @Component ("Forumpostbean") public class forumpost {private map<string,string> maps; Private list<string> lists;public forumpost ()  {super ();lists = new  arraylist<string> (0); Lists.add ("List1"); Lists.add ("List2"); Maps = new hashmap<string,  String> (); Maps.put ("Map1",  "value1"); Maps.put ("Map2",  "value2");} Public map<string, string> getmaps ()  {return maps;} Public void setmaps (Map<string, string> maps)  {this.maps = maps;} Public list<string> getlists ()  {return lists;} Public void setlists (list<string> lists)  {this.lists = lists;}}

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

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8. 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 >

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

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10. 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.forum;public Class Apptest {@Testpublic void Beantest () {Configurableapplicationcontext context = new Classpathxmlapplicationcon Text ("Applicationcontext.xml"); Forum Forum = (Forum) context.getbean ("Forumbean"); System.out.println (Forum.getname ()); System.out.println (Forum.getlistname ());}}

11. 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!

Spring4-el getting elements from the MAP and list