spring学习-1.使用Maven构建spring项目

怼烎@ 2022-04-15 06:52 184阅读 0赞

1.新建一个Maven项目  
[![sp\_1.jpg][sp_1.jpg]][sp_1.jpg_sp_1.jpg]  
项目的结构图  
[![sp\_2][sp_2]][sp_2_sp_2]  
2.配置pom.xml,引入项目需要的依赖,这里引入了spring,junit

<?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>edu.njxz.demo</groupId>
        <artifactId>springTest</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.0.6.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
            </dependency>
        </dependencies>
    
    
    </project>

3.新建一个People类

package edu.njxz.demo.bean;
    
    public class People {
        private String name;  //姓名
        private int age;      //年龄
    
        public String getName() {
            return name;
        }
    
        public int getAge() {
            return age;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public void setAge(int age) {
            this.age = age;
        }
    }

4.创建spring的beans.xml,通过spring的配置文件来完成对象的注入

<?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="people" class="edu.njxz.demo.bean.People">
              <property name="name" value="yxc"></property>
              <property name="age" value="21"></property>
          </bean>
      </beans>

5.进行测试

package edu.njxz.demo.test;
    
    import edu.njxz.demo.bean.People;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class Test1 {
        public static void main(String[] args) {
    
            //把beans.xml的类加载到容器
            ApplicationContext applicationContext=new ClassPathXmlApplicationContext("beans.xml");
    
            //从容器中获取bean
            People people= (People) applicationContext.getBean("people");
            System.out.println(people.getName()+" "+people.getAge());
        }
    }

6.控制台的打印结果  
[![sp\_3][sp_3]][sp_3_sp_3]

[sp_1.jpg]: https://github.com/yangxuechen/learnSSM/raw/master/resource/sping-learn-images/sp_1.jpg
[sp_1.jpg_sp_1.jpg]: /images/20220415/d159599115744297b3b0d6d9f820d919.png
[sp_2]: https://github.com/yangxuechen/learnSSM/raw/master/resource/sping-learn-images/sp_2.jpg
[sp_2_sp_2]: /images/20220415/c00c021316874282b15ad337e94dc608.png
[sp_3]: https://github.com/yangxuechen/learnSSM/raw/master/resource/sping-learn-images/sp_3.jpg
[sp_3_sp_3]: /images/20220415/1471088e66534efd819750c525f043bf.png