Spring学习02---静态工厂、实例工厂、构造方法设计模式

Spring三种工厂设计模式：

        1.构造方法创建对象

        2.静态工厂创建对象

        3.实例工厂创建对象

例子：

public class StaticFactory {
    public static Student creatStaticFactory(String name,String sex,String clazz){
        return new Student(name,sex,clazz);
    }
}

public class ExampleFactory {
    public Student creatExampleFactory(String name, String sex, String clazz){
        return new Student(name,sex,clazz);
    }
}

public class MyTest {
    ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    @Test
    public void test(){
        Student student = context.getBean("student", Student.class);
        System.out.println(student);
    }
    @Test
    public void test2(){
        Student student2 = context.getBean("student2", Student.class);
        System.out.println(student2);
    }
    @Test
    public void text3(){
        Student staticFactory = context.getBean("staticFactory", Student.class);
        System.out.println(staticFactory);
    }
    @Test
    public void text4(){
        Student example = context.getBean("example", Student.class);
        System.out.println(example);
    }
}

 javaBean

public class Student {
    private String name;
    private String sex;
    private String clazz;

    public Student() {
    }

    public Student(String name, String sex, String clazz) {
        this.name = name;
        this.sex = sex;
        this.clazz = clazz;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getClazz() {
        return clazz;
    }

    public void setClazz(String clazz) {
        this.clazz = clazz;
    }
    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + ''' +
                ", sex='" + sex + ''' +
                ", clazz='" + clazz + ''' +
                '}';
    }
}