package com.xu.pojo;
public class Address {
private String address;
@Override
public String toString() {
return "Address{" +
"address='" + address + '\'' +
'}';
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
package com.xu.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 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 + '\'' +"\n"+
" address=" + address.toString() +"\n"+
" books=" + Arrays.toString(books) +"\n"+
" hobbys=" + hobbys +"\n"+
" card=" + card +"\n"+
" games=" + games +"\n"+
" wife='" + wife + '\'' +"\n"+
" info=" + info +"\n";
}
}
package com.xu.pojo;
public class User {
private String name;
private int age;
public User() {
}
public User(String name, int age) {
this.name = name;
this.age = age;
}
@Override
public String toString() {
return "User{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
<?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="address" class="com.xu.pojo.Address">
<property name="address" value="安徽"/>
</bean>
<bean id="student" class="com.xu.pojo.Student">
<!-- 第一种,普通注入-->
<property name="name" value="徐总"/>
<!-- 第二种,Bean注入-->
<property name="address" ref="address"/>
<!-- 第三种,数组注入-->
<property name="books">
<array>
<value>红楼梦</value>
<value>西游记</value>
<value>水浒传</value>
<value>三国演义</value>
</array>
</property>
<!-- 第四种,List注入-->
<property name="hobbys">
<list>
<value>听歌</value>
<value>看电影</value>
<value>学习</value>
</list>
</property>
<!-- 第五种,Map注入-->
<property name="card">
<map>
<entry key="身份证" value="123456"/>
<entry key="银行卡" value="123456"/>
</map>
</property>
<!-- Set注入-->
<property name="games">
<set>
<value>王者荣耀</value>
<value>贪吃蛇</value>
</set>
</property>
<!-- null注入-->
<property name="wife">
<null/>
</property>
<!-- Propertise注入-->
<property name="info">
<props>
<prop key="学号">123456789</prop>
<prop key="性别">男</prop>
<prop key="姓名">小明</prop>
</props>
</property>
</bean>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:c="http://www.springframework.org/schema/c"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!--p命名空间注入-->
<bean id="user" class="com.xu.pojo.User" p:name="徐总" p:age="20"/>
<!-- c命名空间注入-->
<!-- 默认单例模式-->
<bean id="user2" class="com.xu.pojo.User" c:age="18" c:name="软件" scope="singleton"/>
<!-- 原型模式,每次从容器中get的时候,都会产生一个新对象-->
<bean id="user3" class="com.xu.pojo.User" c:age="19" c:name="Java" scope="prototype"/>
</beans>
import com.xu.pojo.Student;
import com.xu.pojo.User;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class MyTest {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
Student student = (Student) context.getBean("student");
System.out.println(student.toString());
}
@Test
public void test2() {
ApplicationContext context = new ClassPathXmlApplicationContext("userbeans.xml");
User user1 = (User) context.getBean("user");
User user11 = (User) context.getBean("user");
User user2 = (User) context.getBean("user2");
User user3 = (User) context.getBean("user3");
User user4 = (User) context.getBean("user3");
System.out.println(user1.toString());
System.out.println(user2.toString());
System.out.println(user3.toString());
System.out.println("-----------------------------------");
System.out.println("id为user与user创建的对象相同:"+(user1 == user11));
System.out.println("id为user与user2创建的对象不同:"+(user1 == user2));
System.out.println("原型模式,每次从容器中get的时候,都会产生一个新对象:"+(user3 == user4));
}
}