spring的各种注入

java

package cn.ioc.student;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class Student {
    private String name;
    private Address addr;
    private String[] books;
    private List<String> testlist;
    private Map<String,String> cards;
    private Set<String> games;
    private String wife;

    public String getWife() {
        return wife;
    }

    public void setWife(String wife) {
        this.wife = wife;
    }

    public Set<String> getGames() {
        return games;
    }

    public void setGames(Set<String> games) {
        this.games = games;
    }

    public List<String> getTestlist() {
        return testlist;
    }

    public void setTestlist(List<String> testlist) {
        this.testlist = testlist;
    }

    public Map<String, String> getCards() {
        return cards;
    }

    public void setCards(Map<String, String> cards) {
        this.cards = cards;
    }

    public String[] getBooks() {
        return books;
    }

    public void setBooks(String[] books) {
        this.books = books;
    }

    //-------------------------------------------------
    public Address getAddr() {
        return addr;
    }

    public void setAddr(Address addr) {
        this.addr = addr;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    //show
        public void show(){
            System.out.print("---我叫"+name+",---我住在"+addr.getAddr()+"---我爱看的书有");

            for(int i=0;i<books.length;i++){
                System.out.print(books[i]+",");
            }
            System.out.println("---list"+testlist);
            System.out.println("---map="+cards);
            System.out.println("---set="+games);
            System.out.println("---wife老婆=");
        }
}

address.class

package cn.ioc.student;

public class Address {
    private String addr;

    public String getAddr() {
        return addr;
    }

    public void setAddr(String addr) {
        this.addr = addr;
    }

}

beans.xml

<?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
        https://www.springframework.org/schema/beans/spring-beans.xsd">

        <!-- ioc -->
        <bean id="address" class="cn.ioc.student.Address">
            <property name="addr" value="beijing"></property>
        </bean>
        <!-- ref引用注入 -->
        <bean id="student" class="cn.ioc.student.Student">
            <property name="name" value="shangren"></property>
            <property name="addr" ref="address"></property>
            <!-- 数组注入 -->
            <property name="books">
                <array>
                    <value>书1</value>
                    <value>书2</value>
                    <value>书3</value>
                </array>
            </property>
            <!-- list注入 -->
            <property name="testlist">
                <list>
                    <value>排球</value>
                    <value>足球</value>
                    <value>篮球</value>
                </list>
            </property>
            <!-- map -->
            <property name="cards">
                <map>
                    <entry key="中国银行" value="1997081100"></entry>
                    <entry>
                        <key><value>建设银行</value></key>
                        <value>110110110</value>
                    </entry>
                </map>
            </property>
            <!-- set -->
            <property name="games">
                <set>
                    <value>dota</value>
                    <value>cs</value>
                    <value>cs</value>
                </set>
            </property>
            <!-- 空 null -->
            <property name="wife">
                <null></null>
            </property>
        </bean>
</beans>

test.class

package cn.ioc.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.ioc.student.Student;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
        Student stu = (Student) ac.getBean("student");
        stu.show();
    }
}

结果