1. 程式人生 > 其它 >Spring 初學 - 1. 在基礎java專案中執行Spring

Spring 初學 - 1. 在基礎java專案中執行Spring

1. 下載並匯入必須的包

需要以下jar包

1.1 從spring官網下載spring包

https://repo.spring.io/ui/native/release/org/springframework/spring/

下載spring-5.2.6.RELEASE-dist.zip,並解壓獲取需要的包

1.2 下載commons-logging-1.2-bin.zip

http://commons.apache.org/proper/commons-logging/download_logging.cgi

下載commons-logging-1.2-bin.zip並解壓出需要的包

1.3 將包複製到idea中構建的java的基礎專案中

File -> Project Structure

2. 建立簡單的類例項並通過Spring進行例項化

2.1 建立user類檔案(user.java)

package com.firstSpringTest.me;

public class user {
    public void say(){  
        System.out.println("I am a com.firstSpringTest.me.user class");
    }   
}

2.2 構建xml檔案(ApplicationContext.xml)

建立方式:

 新增<bean>

<?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">


    <bean 
id="user" class="com.firstSpringTest.me.user"></bean> </beans>

2.3 建立測試類(SpringTest.java)

package com.firstSpringTest.me;

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

public class springTest<sout> {
    public static void main(String[] args){
        ApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("ApplicationContext.xml");
        user user = (user) classPathXmlApplicationContext.getBean("user", user.class);
        user.say();
    }
}

執行結果如下