Spring simple start example

1. First create an instance of HelloWord.
    1.1 Add two packages com.huizhi.hello and com.huizhi.test to src
    1.2 Create a new Class file in com.huizhi.hello.

package com.huizhi.hello;

public class hello {

	private String name;

	public void setName(String name) {
		this.name = name;
	}

	public String say() {
		return "hello :" + name ;
	}
	
}

    1.3 Create a new Class file in com.huizhi.test. Then run the test to see if you can print something to the console.

package com.huizhi.test;

import com.huizhi.hello.hello;

public class test {

	public static void main(String[] args) {
		hello h1 = new hello();
		h1.setName("Zhang San");
		System.out.println(h1.say());
	}

}

2. Copy the Spring jar package to the project.
3. Create a new XML configuration file applicationContext.xml in the src directory.

<?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-3.0.xsd">

   <bean id="helloWorld" class="com.huizhi.hello.hello">
       <property name="name" value="李四"/>
   </bean>

</beans>

4. Go back to the com.huizhi.test.test.java file and comment out the original test instance. Added new test methods. Run the test and see the console output

		ApplicationContext appContext = new ClassPathXmlApplicationContext("applicationContext.xml");
		hello h1 = (hello) appContext.getBean("helloWorld");
		System.out.println(h1.say());