Spring4-three ways to inject values into bean properties

1. Create a MAVEN project, project name Springdemo24,

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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>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;public class Forum {private int fid;private String name;public int Getfid () {return FID;} public void Setfid (int fid) {this.fid = FID;} Public String GetName () {return name;} public void SetName (String name) {this.name = name;} @Overridepublic String toString () {return "{fid=>" +this.fid+ ",name=>" +this.name+ "}";}

5. Create the Spring-bean.xml configuration file under Src/main/resources,

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The contents of the 6.spring-bean.xml configuration file are 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 "xsi:schemalocation="/HTTP/ Www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.0.xsd "><! -- 1. Normal mode  --><bean id= "Forum1"  class= "Com.mycompany.shequ.bean.Forum" >< Property name= "FID"  ><value>1</value></property><property name= "name" ><value> normal way </value></property></bean><!-- 2. Shortcuts  --><bean  Id= "forum2"  class= "Com.mycompany.shequ.bean.Forum" ><property name= "FID"  value= "2" >< /property><property name= "Name"  value= "Shortcut" ></property></bean><!-- 3. P-mode  --><bean id= "forum3"  class= "Com.mycompany.shequ.bean.Forum"  p:fid= "3"  p: Name= "P-mode" ></bean> </beans>

7. Create the Applicationcontext.xml configuration file under Src/main/resources,

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The contents of the 8.applicationcontext.xml configuration file are as follows

<beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "xsi:schemalocation=" http://www.springframework.org/schema/beanshttp:// Www.springframework.org/schema/beans/spring-beans-4.0.xsd "><import resource=" Bean/spring-bean.xml "/> </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.applicationcontext;import  org.springframework.context.support.classpathxmlapplicationcontext;import com.mycompany.shequ.bean.forum; public class apptest {@Testpublic  void beantest () {     Applicationcontext context = new classpathxmlapplicationcontext ("ApplicationContext.xml"); forum forum1 =  (Forum)  context.getbean ("Forum1"); System.out.println (FORUM1); forum forum2 =  (Forum)  context.getbean ("forum2"); System.out.println (FORUM2); forum forum3 =  (Forum)  context.getbean ("forum3"); System.out.println (FORUM3);}} 

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

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Spring4-three ways to inject values into bean properties