Spring练习（1）

导包：

实体类（javaBean）：

package until;

public class User {

    private String name;
    private Integer age;
    private  Car car;

    public Car getCar() {
        return car;
    }
    public void setCar(Car car) {
        this.car = car;
    }
    public User(){
        System.out.println("空参构造方法！！");
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }
    @Override
    public String toString() {
        return "User [name=" + name + ", age=" + age + ", car=" + car + "]";
    }
}

package until;

public class Car {

    private String name;
    private String color;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }
    @Override
    public String toString() {
        return "Car [name=" + name + ", color=" + color + "]";
    }
}

工厂类：

package until;

public class UserFactory {

    public static User creatUser(){

        System.out.println("静态工厂");
        return new User();

    }

    public User creatUser1(){

        System.out.println("实例工厂");
        return new User();

    }
}

利用工厂类注入属性（配置文件）：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd ">

    <bean name="user" class="until.User"></bean>

    <bean name="user1" class="until.UserFactory" factory-method="creatUser"></bean>

    <bean name="user2" factory-bean="factory" factory-method="creatUser1"></bean>

    <bean name="factory" class="until.UserFactory"></bean>
</beans>

测试类（工厂注入属性测试）：

package test;

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

import until.User;

public class Main {
    public static void main(String[] args) {
        Main m = new Main();

        m.fun1();
    }

    public void fun(){

        ApplicationContext ac = new ClassPathXmlApplicationContext("until/applicationcontext.xml");
        User u = (User) ac.getBean("user");
        System.out.println(u);

    }

    public void fun1(){

        ApplicationContext ac = new ClassPathXmlApplicationContext("until/applicationcontext.xml");
        User u = (User) ac.getBean("user1");
        System.out.println(u);

    }

    public void fun2(){

        ApplicationContext ac = new ClassPathXmlApplicationContext("until/applicationcontext.xml");
        User u = (User) ac.getBean("user2");
        System.out.println(u);

    }
}

普通注入（配置文件）：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd ">

    <bean name="user" class="until.User">

        <property name="name" value="Tom"></property>
        <property name="age" value="18"></property>
        <property name="car" ref="car"></property>

    </bean>

    <bean name="car" class="until.Car">

        <property name="name" value="法拉利"></property>
        <property name="color" value="红色"></property>

    </bean>


</beans>

测试类（普通注入属性）

package injection;

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

import until.User;

public class Demo {

    public static void main(String[] args) {
        Demo d = new Demo();
        d.fun();
    }

    public void fun(){
        ApplicationContext ac = new ClassPathXmlApplicationContext("injection/applicationcontext.xml");
        User u = (User) ac.getBean("user");
        System.out.println(u);
    }
}