Spring依赖注入多种类型数据的示例代码

目录

• Student实体类
• StudentsClass实体类
• beans.xml
• 测试

Student实体类

package entity;
import java.util.*;
/**
 * @author LeDao
 * @company
 * @create 2022-02-13 21:26
 */
public class Student {
    private int id;
    private String name;
    private StudentClass studentClass;
    private String[] books;
    private List hobbies;
    private Map cards;
    private Set games;
    private String wife;
    private Properties info;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    public String getName() {
        return name;
    public void setName(String name) {
        this.name = name;
    public StudentClass getStudentClass() {
        return studentClass;
    public void setStudentClass(StudentClass studentClass) {
        this.studentClass = studentClass;
    public String[] getBooks() {
        return books;
    public void setBooks(String[] books) {
        this.books = books;
    public List getHobbies() {
        return hobbies;
    public void setHobbies(List hobbies) {
        this.hobbies = hobbies;
    public Map getCards() {
        return cards;
    public void setCards(Map cards) {
        this.cards = cards;
    public Set getGames() {
        return games;
    public void setGames(Set games) {
        this.games = games;
    public String getWife() {
        return wife;
    public void setWife(String wife) {
        this.wife = wife;
    public Properties getInfo() {
        return info;
    public void setInfo(Properties info) {
        this.info = info;
    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", studentClass=" + studentClass +
                ", books=" + Arrays.toString(books) +
                ", hobbies=" + hobbies +
                ", cards=" + cards +
                ", games=" + games +
                ", wife='" + wife + '\'' +
                ", info=" + info +
                '}';
}

StudentsClass实体类

package entity;
/**
 * @author LeDao
 * @company
 * @create 2022-02-14 14:11
 */
public class StudentClass {
    private int id;
    private String name;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    @Override
    public String toString() {
        return "Class{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }
}

beans.xml

下面展示的数据类型有：一般类型、对象、数组、List、Map、Set、空值、Properties

    
        
        
    
    
        
        
        
        
        
        
        
            
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测试

import config.MyConfig;
import entity.Student;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
 * @author LeDao
 * @company
 * @create 2022-02-12 15:56
 */
public class MyTest {
    public static void main(String[] args) {
        ApplicationContext context=new ClassPathXmlApplicationContext("beans.xml");
        Student student = (Student) context.getBean("user1");
        System.out.println(student);
    }
}

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