Spring Framework Learning Notes (i)

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How eclipse installs the spring plug-in:

Http://jingyan.baidu.com/article/1612d5005fd087e20f1eee10.html

Use Maven to add the jar packages required by spring.

Several required jar packages: core, bean, context, express. Also relies on a log packet commons-logging

In order to unify the version in the Pom.xml file, the version number is written in the properties as follows:

  <Properties>      <!--Spring Version number -        <spring.version>4.0.2.RELEASE</spring.version>        <!--mybatis Version number -        <mybatis.version>3.2.6</mybatis.version>        <!--log4j log File Management Pack version -        <slf4j.version>1.7.7</slf4j.version>        <log4j.version>1.2.17</log4j.version>  </Properties>

The complete sample pom file is:

<Projectxmlns= "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>4.0.0</modelversion>    <groupId>Com.pf.Soft</groupId>    <Artifactid>Myspringlearn</Artifactid>    <version>0.0.1-snapshot</version>    <Properties>        <!--Spring Version number -        <spring.version>4.0.2.RELEASE</spring.version>        <!--mybatis Version number -        <mybatis.version>3.2.6</mybatis.version>        <!--log4j log File Management Pack version -        <slf4j.version>1.7.7</slf4j.version>        <log4j.version>1.2.17</log4j.version>    </Properties>    <Dependencies>        <!--Spring Core Pack -        <Dependency>            <groupId>Org.springframework</groupId>            <Artifactid>Spring-core</Artifactid>            <version>${spring.version}</version>        </Dependency>        <Dependency>            <groupId>Org.springframework</groupId>            <Artifactid>Spring-beans</Artifactid>            <version>${spring.version}</version>        </Dependency>        <Dependency>            <groupId>Org.springframework</groupId>            <Artifactid>Spring-context</Artifactid>            <version>${spring.version}</version>        </Dependency>        <Dependency>            <groupId>Org.springframework</groupId>            <Artifactid>Spring-expression</Artifactid>            <version>${spring.version}</version>        </Dependency>        <!--Spring-dependent log packages -        <Dependency>            <groupId>Commons-logging</groupId>            <Artifactid>Commons-logging</Artifactid>            <version>1.1.3</version>        </Dependency>    </Dependencies></Project>

To create an entity class ProductEntity:

public class ProductEntity {/** * Product code */private string prodno;/** * Product Name */private string prodname;/** *  * @return th E prodno */public String Getprodno () {return prodno;} /** * @param prodno the prodno to set */public void Setprodno (String prodno) {this.prodno = Prodno;} /** *  * @return the ProdName */public String getprodname () {return prodname;} /** * @param prodname the prodname to set */public void Setprodname (String prodname) {this.prodname = ProdName;}

Key points:

1. Spring's application configuration file
2. Using Spring to get objects

The Applicationcontext.xml file is as follows:

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans" xmlns: Xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation= "Http://www.springframework.org/schema/beans Http://www.springframework.org/schema/beans/spring-beans.xsd "><!--XML configuration Bean--><bean id=" Productbean "class=" com.pfSoft.beans.ProductEntity "><property name=" Prodno "value=" Toothpaste ></property> <property name= "ProdName" value= "Chopsticks" ></property></bean></beans>

Test, use spring to create the object:

ApplicationContext applicationcontext; @Beforepublic void init () {applicationcontext=new Classpathxmlapplicationcontext ("Applicationcontext.xml");} @Testpublic void Test () {try {productentity productentity= (productentity) Applicationcontext.getbean ("Productbean"); System.out.println (Productentity.getprodno ()); System.out.println (Productentity.getprodname ());} catch (Exception e) {//Todo:handle Exception}calendar Calendar = Calendar.getinstance ();}

Spring Framework Learning Notes (i)