Java類屬性

Java類屬性：

1）在JavaEE中，Java類的屬性通過getter，setter 未定義：get(或set)方法，去除get(或set)后，

后字母小寫即為Java類的屬性

 

 public String getName() {
        return name;
    }

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

 

　　

 

2）而以前叫的的那個屬性，即成員變量，稱之為字段。

3）操作Java類的屬性有一個工具包：Beanutil

①setProperty()

②getProperty()

 

    //通過BeanUtils工具包對屬性賦值
    @Test
    public void test1() throws InvocationTargetException, IllegalAccessException {
        Object object = new Student();
        System.out.println(object);

        BeanUtils.setProperty(object,"name","yang");
        System.out.println(object);
    }
    //通過BeanUtils工具包對屬性取值
    @Test
    public void test2() throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
        Object object = new Student();
        System.out.println(object);

        BeanUtils.setProperty(object,"password","yang");
        System.out.println(object);

        Object value = BeanUtils.getProperty(object,"password");
        System.out.println(value);
    }