Spring 从何学起

Question

要学,但是左看右看看了些资料.一个直观带说明的例子或者最好.请不吝啬赐教.

Answer 1

从hello world开始学吧：），从网上找的代码，自己配成功了。
HelloWorldClient.java
package com.openv.spring;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;public class HelloWorldClient {
    protected static final Log log = LogFactory.getLog(HelloWorldClient.class);    public HelloWorldClient() {
        Resource resource = new ClassPathResource("appcontext.xml");
        BeanFactory factory = new XmlBeanFactory(resource);
        HelloWorld hw = (HelloWorld) factory.getBean("fileHelloWorld");
        log.info(hw.getContent());
    }    public static void main(String[] args) {
        new HelloWorldClient();
    }
}HelloWorld.java
package com.openv.spring;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;public class HelloWorld {
    protected static final Log log = LogFactory.getLog(HelloWorld.class);    private HelloStr hStr;    public HelloWorld(HelloStr hStr) {
        this.hStr = hStr;
    }    public String getContent() {
        return hStr.getContent();
    }
}HelloStr.java
package com.openv.spring;public interface HelloStr {
    public String getContent();
}FileHelloStr.java
package com.openv.spring;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;import java.util.Properties;public class FileHelloStr implements HelloStr {
    protected static final Log log = LogFactory.getLog(FileHelloStr.class);    private String propfilename;    public FileHelloStr(String propfilename) {
        this.propfilename = propfilename;
    }    public String getContent() {
        String helloworld = "";        try {
            Properties properties = new Properties();
            InputStream is = getClass().getClassLoader().getResourceAsStream(
                    propfilename);
            properties.load(is);
            is.close();
            helloworld = properties.getProperty("helloworld");
        } catch (FileNotFoundException ex) {
            log.error(ex);
        } catch (IOException ex) {
            log.error(ex);
        }        return helloworld;
    }
}appcontext.xml(放在src根目录下)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" 
   "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>     <bean name="fileHelloWorld"
          class="com.openv.spring.HelloWorld">
          <constructor-arg>
               <ref bean="fileHello"/>
          </constructor-arg>    
     </bean>     <bean name="fileHello"
          class="com.openv.spring.FileHelloStr">
          <constructor-arg>
               <value>helloworld.properties</value>
          </constructor-arg>  
     </bean>
     
</beans>helloworld.properties(放在src根目录下)
helloworld = "Hello World!!"build.xml(放在项目根目录下)
<?xml version="1.0"?>
<project name="example4" default="run" basedir=".">
<path id="lib"> <fileset dir="./lib">
<include name="spring.jar"/>
<include name="commons-logging.jar"/>
</fileset>
</path> <target name="run" depends="compile" description="Run HelloWorldClient"> <java classname="com.openv.spring.HelloWorldClient" fork="yes">
<classpath refid="lib"/>
<classpath path="classes"/>
</java> </target> <target name="compile"> <mkdir dir="classes"/> <javac destdir="classes" source="1.5" target="1.5"
deprecation="false" optimize="false" failonerror="true">
<src path="src"/>
<classpath refid="lib"/>
</javac>

<copy todir="classes">
<fileset dir="src">
<include name="helloworld.properties"/>
<include name="appcontext.xml"/>
</fileset>
</copy>
</target>
</project>

Answer 2

spring2.0 的包哪里下?需要哪些包?我正是想做个HelloWorld

Answer 3

这篇文章不错，讲的 Spring IOC 部分http://hi.baidu.com/iiitom/blog/item/86c09fa15804cc8b471064b2.html