使用idea, 通过maven新建一个spring项目

1. File --> new --> project -->maven

   

2. 设置项目名称,位置,包名等

   

3. 引入spring framework
   3.1 到mvnrepository.com 搜索spring context

   

   3.2 复制引入maven的代码

   

   3.3 将复制到代码粘贴到项目的pom文件中

   <?xml version="1.0" encoding="UTF-8"?>
   <project xmlns="http://maven.apache.org/POM/4.0.0"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
   
       <groupId>com.stark</groupId>
       <artifactId>Test</artifactId>
       <version>1.0-SNAPSHOT</version>
   
       <dependencies>
           <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
           <dependency>
               <groupId>org.springframework</groupId>
               <artifactId>spring-context</artifactId>
               <version>5.3.16</version>
           </dependency>
   
       </dependencies>
   
   </project>
   

   3.4 点击 load maven change , 加载引入的spring框架

   

4. 在项目中新建一个Person类

   package com.stark;
   public class Person {
   }
   

5. 新建spring项目的配置文件applicationContext.xml

   

   生成的配置文件中会自动加入一些代码, 自己在输入一些代码

   <?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="person" class="com.stark.Person"/> <!-- 自己输入这一行-->
   </beans>
   

6. 新建Test类

   package com.stark;
   import org.springframework.context.support.ClassPathXmlApplicationContext;
   public class Test {
       public static void main(String[] args) {
           ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
           Object person = ctx.getBean("person");
           System.out.println(person);
       }
   }
   

7. 运行main方法. 控制台就会输出com.stark.Person@1ed4004b . 这就建好了一个Spring项目

   com.stark.Person@1ed4004b
   
   Process finished with exit code 0