<dependency>
 <groupid>org.springframework</groupid>
 spring-core</artifactid>
 <version>${org.springframework-version}</version>
 <exclusions>
  <exclusion>
   <groupid>commons-logging</groupid>
   commons-logging</artifactid>
  </exclusion>
 </exclusions>
</dependency>
<dependency>
 <groupid>org.springframework</groupid>
 spring-beans</artifactid>
 <version>${org.springframework-version}</version>
</dependency>
<dependency>
 <groupid>org.springframework</groupid>
 spring-aop</artifactid>
 <version>${org.springframework-version}</version>
</dependency>
<dependency>
 <groupid>org.springframework</groupid>
 spring-context</artifactid>
 <version>${org.springframework-version}</version>
</dependency>
<dependency>
 <groupid>commons-logging</groupid>
 commons-logging</artifactid>
 <version>1.2</version>
</dependency>
<!-- Junit -->
<dependency>
 <groupid>junit</groupid>
 junit</artifactid>
 <version>3.8.1</version>
 <scope>test</scope>
</dependency>

<!--?xml version="1.0" encoding="UTF-8"?-->
<beans xmlns="https://www.springframework.org/schema/beans" xmlns:p="https://www.springframework.org/schema/p" xmlns:util="https://www.springframework.org/schema/util" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="https://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
  https://www.springframework.org/schema/util https://www.springframework.org/schema/util/spring-util.xsd">
 
 <!-- 
  配置bean
  id：标识容器中bean对象
  class：bean的全类名，通过反射的方式在IOC容器中创建Bean，所以要求Bean类必须有无参构造器
  -->
 <bean class="com.spring.test.HelloWorld" id="helloWorld">
  <property name="name" value="crystal"></property>
 </bean>
 
 <!-- 通过构造方法配置bean,可以指定参数的位置和类型，以区分重载的构造函数 -->
 <bean class="com.spring.test.Car" id="car">
  <constructor-arg index="0" value="BENCHI"></constructor-arg>
  <constructor-arg index="1" type="double" value="200000.0"></constructor-arg>
 </bean>
 <bean class="com.spring.test.Car" id="car1">
  <!-- 如果字面值包含特殊字符，使用<![CDATA[]]>包裹起来
   属性值可以使用value子节点来配置
   -->
  <constructor-arg type="java.lang.String">
   <value><!--[CDATA[<shanghai-->]]></value>
  </constructor-arg>
  <constructor-arg index="1" type="int" value="200"></constructor-arg>
 </bean>
 
 <bean class="com.spring.test.Person" id="person">
  <property name="name" value="Crystal"></property>
  <property name="age" value="20"></property>
  <!-- 可以使用ref建立引用之间的关系 -->
  <!-- 
  <property name="car" ref="car"></property>
   -->
  <!-- 
   <property name="car">
    <ref bean="car2"/>
   </property>
   -->
   <!-- 
   <property name="car">
   <bean class="com.spring.test.Car">
    <constructor-arg value="changanFute"></constructor-arg>
    <constructor-arg value="3000000"></constructor-arg>
    <constructor-arg value="240"></constructor-arg>
   </bean>
   </property> 
   -->
   <!-- 测试赋值null -->
   <!-- <property name="car"><null/></property> -->
   <property name="car" ref="car1"></property>
   <!-- 为级联属性赋值，注意：属性需要先初始化后才能为级联属性赋值，和structs2不同 -->
   <property name="car.price" value="400000"></property>
 </bean>
 
 <!-- 测试配置集合属性 -->
 <bean class="com.spring.test.collections.Person" id="person3">
  <property name="name" value="barry"></property>
  <property name="age" value="21"></property>
  <property name="cars">
   <list>
    <ref bean="car">
    <ref bean="car1">
    <bean class="com.spring.test.Car">
     <constructor-arg value="changanFute"></constructor-arg>
     <constructor-arg value="3000000"></constructor-arg>
     <constructor-arg value="240"></constructor-arg>
    </bean>
   </ref></ref></list>
  </property>
 </bean>
 
 <!-- 配置Map的属性值 -->
 <bean class="com.spring.test.collections.NewPerson" id="newPerson">
  <property name="name" value="lina"></property>
  <property name="age" value="22"></property>
  <property name="cars">
   <!-- 使用map节点及map的entry子节点配置Map类型的成员变量 --><map>
    <entry key="AA" value-ref="car"></entry>
    <entry key="BB" value-ref="car1"></entry></map>
  </property>
 </bean>
 
 
 <!-- 配置Properties属性值 -->
 <bean class="com.spring.test.collections.DataSource" id="dataSource">
  <property name="properties">
   <!-- 使用props和prop子节点来为Properties属性赋值 -->
   <props>
    <prop key="user">root</prop>
    <prop key="password">1234</prop>
    <prop key="jdbcUrl">jdbc:mysql://test</prop>
    <prop key="jdbcDriver">com.mysql.jdbc.Driver</prop>
   </props>
  </property>
 </bean>
 
 <!-- 配置单例的集合bean，以供多个bean进行引用，需要导入util命名空间 -->
 <util:list id="cars">
  <ref bean="car">
  <ref bean="car1">
 </ref></ref></util:list>
 
 <bean class="com.spring.test.collections.Person" id="person4">
  <property name="name" value="Jackie"></property>
  <property name="age" value="30"></property>
  <property name="cars" ref="cars"></property>
 </bean>
 
 <!-- 通过p命名空间为bean的属性赋值，需要先导入p命名空间，相对于传统配置方式更为简洁 -->
 <bean class="com.spring.test.collections.Person" id="person5" p:age="32" p:cars-ref="cars" p:name="Queue"></bean>
</beans>

package com.spring.test;
public class Car {
 private String name;
 private int maxSpeed;
 private double price;
 public Car() {
 }
 public Car(String name, double price) {
  this.name = name;
  this.price = price;
 }
 public Car(String name, int maxSpeed) {
  this.name = name;
  this.maxSpeed = maxSpeed;
 }
 public Car(String name, double price, int maxSpeed) {
  this.name = name;
  this.price = price;
  this.maxSpeed = maxSpeed;
 }
 public void setPrice(double price) {
  this.price = price;
 }
 @Override
  public String toString() {
  return "Car [name:" + name + ", price:" + price + ", maxSpeed:" + maxSpeed + "]";
 }
}

package com.spring.test;
public class HelloWorld {
 private String name;
 public HelloWorld() {
  System.out.println("HelloWorld constructor...");
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  System.out.println("setName:" + name);
  this.name = name;
 }
 @Override
  public String toString() {
  return "hello," + name;
 }
}

package com.spring.test;
public class Person {
 private String name;
 private int age;
 private Car car;
 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;
 }
 public Car getCar() {
  return car;
 }
 public void setCar(Car car) {
  this.car = car;
 }
 @Override
  public String toString() {
  return "Person: [name=" + name + ", age=" + age + ", car=" + car + "]";
 }
}

package com.spring.test;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main {
 public static void main(String[] args) {
  HelloWorld hello = new HelloWorld();
  hello.setName("barry");
  System.out.println("print:"+ hello + "\n");
  // 装入 Spring 配置文件
  /**
   * 装入 Spring 配置文件
   * ApplicationContext是IOC容器，它有两个主要实现类（ClassPathXmlApplicationContext和FileSystemXmlApplicationContext）
   * ApplicationContext在初始化上下文时就实例化所有单例的Bean
   */
  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
  //HelloWorld hello1 = (HelloWorld) context.getBean("helloWorld"); // 通过id获取bean对象
  HelloWorld hello1 = context.getBean(HelloWorld.class);
  // 通过类型获取bean对象（要求在IOC容器里该类型的对象只能有一个）
  System.out.println(hello1);
 }
 @Test
  public void testContructor() {
  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
  Car car = (Car) context.getBean("car");
  // 通过类型获取bean对象（要求在IOC容器里该类型的对象只能有一个）
  Car car1 = (Car) context.getBean("car1");
  System.out.println(car);
  System.out.println(car1);
  Person person = (Person) context.getBean("person");
  System.out.println(person);
 }
}

package com.spring.test.collections;
import java.util.Map;
import com.spring.test.Car;
public class NewPerson {
 private String name;
 private int age;
 private Map<string, car=""> cars;
 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;
 }
 public Map<string, car=""> getCars() {
  return cars;
 }
 public void setCars(Map<string, car=""> cars) {
  this.cars = cars;
 }
 @Override
  public String toString() {
  return "Person: [name=" + name + ", age=" + age + ", cars=" + cars + "]";
 }
}

package com.spring.test.collections;
import java.util.List;
import com.spring.test.Car;
public class Person {
 private String name;
 private int age;
 private List<car> cars;
 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;
 }
 public List<car> getCars() {
  return cars;
 }
 public void setCars(List<car> cars) {
  this.cars = cars;
 }
 @Override
  public String toString() {
  return "Person: [name=" + name + ", age=" + age + ", cars=" + cars + "]";
 }
}

package com.spring.test.collections;
import java.util.Properties;
public class DataSource {
 private Properties properties;
 public Properties getProperties() {
  return properties;
 }
 public void setProperties(Properties properties) {
  this.properties = properties;
 }
 @Override
  public String toString() {
  return "DataSource: [properties:" + properties + "]";
 }
}

package com.spring.test.collections;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main {
 @Test
  public void testCollections() {
  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
  Person person = (Person) context.getBean("person3");
  System.out.println(person);
  NewPerson newPerson = (NewPerson) context.getBean("newPerson");
  System.out.println(newPerson);
  DataSource dataSource = (DataSource) context.getBean("dataSource");
  System.out.println(dataSource);
  Person person4 = (Person) context.getBean("person4");
  System.out.println(person4);
  Person person5 = (Person) context.getBean("person5");
  System.out.println(person5);
 }
}