Spring 初學 - 1. 在基礎java專案中執行Spring
阿新 • • 發佈:2022-06-05
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"> <beanid="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