Spring HelloWorld实例

Spring HelloWorld实例

1.创建一个Java工程

创建一个Java工程，导入Spring的jar包。

2.简单的Java bean

一个简单的Javabean

package com.haifeiWu.testSpring;

public class HelloWorld {

    private String name;
    private String type;

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

    public void printHello() {
        System.out.println("Spring4 : Hello ! " + name+" 类型："+this.type);
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }
}

3.Spring的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
                http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">

    <bean id="helloBean" class="com.haifeiWu.testSpring.HelloWorld">
        <property name="name" value="yiibai" />
        <property name="type" value="txt" />
    </bean>

</beans>

4.执行主函数

package com.haifeiWu.core;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.haifeiWu.testSpring.HelloWorld;

/**
 * Spring的执行代码
 * @author wuhaifei
 * @d2016年10月25日
 */
public class MainApp {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext(
                "applicationContext.xml"); 
        HelloWorld obj = (HelloWorld) context.getBean("helloBean");
        obj.printHello();
    }
}

5.输出结果

Spring4 : Hello ! yiibai 类型：txt