下载Spring Framework 的 jar

http://repo.spring.io/release/org/springframework/spring/5.0.5.RELEASE/

download spring framework jar

创建一个普通Java Project并引入Spring Framework jar

package com.sheting.springframework.learning.demo01;

import java.util.List;
import java.util.Map;
import java.util.Properties;

public class Student {

    private String name = "sheting";
    private int age;
    private Course course;
    private Teacher teacher;
    private List<String> list;
    private List<Course> courses;
    private Map<String,String> map;
    private Properties properties;
    private String gender = "男";

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getName() {
        return name;
    }

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

    public Course getCourse() {
        return course;
    }

    public void setCourse(Course course) {
        this.course = course;
    }

    public Teacher getTeacher() {
        return teacher;
    }

    public void setTeacher(Teacher teacher) {
        this.teacher = teacher;
    }

    public List<String> getList() {
        return list;
    }

    public void setList(List<String> list) {
        this.list = list;
    }

    public List<Course> getCourses() {
        return courses;
    }

    public void setCourses(List<Course> courses) {
        this.courses = courses;
    }

    public Map<String, String> getMap() {
        return map;
    }

    public void setMap(Map<String, String> map) {
        this.map = map;
    }

    public Properties getProperties() {
        return properties;
    }

    public void setProperties(Properties properties) {
        this.properties = properties;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }
}

package com.sheting.springframework.learning.demo01;

public class Course {
    private String num;
    private String name;

    public String getNum() {
        return num;
    }

    public String getName() {
        return name;
    }

    public void setNum(String num) {
        this.num = num;
    }

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

}

<?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-2.0.xsd">

    <bean id="student" class="com.sheting.springframework.learning.demo01.Student">
        <!-- 注入普通属性 String 和 int，Integer等基本类型和包装类 -->
        <property name="name" value="Devin" />
        <property name="age" value="26" />
        <!-- 引用其他bean -->
        <property name="course" ref="course" />
        <!-- 注入内部bean, 内部bean仅适用于一次注入，而且不能被其他bean所引用 -->
        <property name="teacher">
            <bean class="com.sheting.springframework.learning.demo01.Teacher" />
        </property>
        <!-- 注入List -->
        <property name="list">
            <list>
                <value>aa</value>
                <value>bb</value>
                <value>cc</value>
            </list>
        </property>
        <property name="courses">
            <list>
                <ref bean="course" />
            </list>
        </property>
        <!-- 注入map 如果key或value是引用， 要使用key-ref， value-ref -->
        <property name="map">
            <map>
                <entry key="key1" value="value1" />
                <entry key="key2" value="value2" />
                <entry key="key3" value="value3" />
            </map>
        </property>
        <!-- 装配Properties -->
        <property name="properties">
            <props>
                <prop key="key-1">value-1</prop>
                <prop key="key-2">value-2</prop>
            </props>
        </property>
        <!-- 装配空值 -->
        <property name="gender"><null/></property>
    </bean>

    <bean id="course" class="com.sheting.springframework.learning.demo01.Course">
        <property name="name" value="化学" />
        <property name="num" value="c001" />
    </bean>

</beans>

package com.sheting.springframework.learning.demo01;

public class Teacher {
    private String name = "jiaoshi";

    public String getName() {
        return name;
    }

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

package com.sheting.springframework.learning.demo01;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {
    
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("/demo.xml");
        Student bean = (Student)context.getBean("student");
        System.out.println(bean.getName());
        System.out.println(bean.getCourse().getNum());
        System.out.println(bean.getTeacher().getName());
        System.out.println(bean.getList().get(0));
        System.out.println(bean.getCourses().get(0).getName());
        System.out.println(bean.getMap().get("key1"));
        System.out.println(bean.getProperties().get("key-1"));
        System.out.println(bean.getGender());
        
    }
}