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.以下是一些Spring常用的注入集合，请“食用”，记得给个三连噢！
如果需要传递类似于 Java Collection 类型的值，例如 List、Set、Map 和 properties，可以使用 Spring 提供的集合配置标签，如下表所示。
| 标签 | 说明 |
|---|---|
| list | 用于注入 list 类型的值，允许重复 |
| set | 用于注入 set 类型的值，不允许重复 |
| map | 用于注入 key-value 的集合，其中 key-value 可以是任意类型 |
| props | 用于注入 key-value 的集合，其中 key-value 都是字符串类型 |
String name;
Address address;
String[] books;
List<String> hobbys;
Map<String,String> card;
Set<String> games;
String wife;
Properties info;
下面使用 IDEA 演示如何注入集合，步骤如下：
address类
package com.kk.pojo;
public class Address {
private String address;
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@Override
public String toString() {
return "Address{" +
"address='" + address + '\'' +
'}';
}
}
Student类
package com.kk.pojo;
import java.util.*;
public class Student {
private String name;
private Address address;
private String[] books;
private List<String> hobbys;
private Map<String,String> card;
private Set<String> games;
private String wife;
private Properties info;
public Student() {
}
public Student(String name, Address address, String[] books,
List<String> hobbys, Map<String, String> card,
Set<String> games, String wife, Properties info) {
this.name = name;
this.address = address;
this.books = books;
this.hobbys = hobbys;
this.card = card;
this.games = games;
this.wife = wife;
this.info = info;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public String[] getBooks() {
return books;
}
public void setBooks(String[] books) {
this.books = books;
}
public List<String> getHobbys() {
return hobbys;
}
public void setHobbys(List<String> hobbys) {
this.hobbys = hobbys;
}
public Map<String, String> getCard() {
return card;
}
public void setCard(Map<String, String> card) {
this.card = card;
}
public Set<String> getGames() {
return games;
}
public void setGames(Set<String> 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{" +
"name='" + name + '\'' +
", address=" + address.toString() +
", books=" + Arrays.toString(books) +
", hobbys=" + hobbys +
", card=" + card +
", games=" + games +
", wife='" + wife + '\'' +
", info=" + info +
'}';
}
}
<?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-3.0.xsd">
<bean id="address" class="com.kk.pojo.Address">
<property name="address" value="广东"></property>
</bean>
<bean id="student" class="com.kk.pojo.Student">
<!-- 第一种：普通值注入 使用value值注入-->
<property name="name" value="火神"></property>
<!-- 第二种：Bean注入 ，使用ref注入-->
<property name="address" ref="address"></property>
<!-- 数组注入，-->
<property name="books">
<array>
<value>红楼梦</value>
<value>西游记</value>
<value>三国演义</value>
<value>水浒传</value>
</array>
</property>
<!-- list注入-->
<property name="hobbys">
<list>
<value>编程</value
