遍歷獲取javabeam中屬性和值

原文鏈接：http://blog.csdn.net/tonytfjing/article/details/39755345

原文的代碼如下

/**
 * 遍歷實體類的屬性和數據類型以及屬性值
 * @param model
 * @throws NoSuchMethodException
 * @throws IllegalAccessException
 * @throws IllegalArgumentException
 * @throws InvocationTargetException
 */
public static void reflectTest(Object model) throws NoSuchMethodException,
                IllegalAccessException, IllegalArgumentException,
                InvocationTargetException {
    // 獲取實體類的所有屬性，返回Field數組
    Field[] field = model.getClass().getDeclaredFields();
    // 遍歷所有屬性
    for (int j = 0; j < field.length; j++) {
            // 獲取屬性的名字
            String name = field[j].getName();
            // 將屬性的首字符大寫，方便構造get，set方法
            name = name.substring(0, 1).toUpperCase() + name.substring(1);
            // 獲取屬性的類型
            String type = field[j].getGenericType().toString();
            // 如果type是類類型，則前面包含"class "，後面跟類名
            System.out.println("屬性爲：" + name);
            if (type.equals("class java.lang.String")) {
                    Method m = model.getClass().getMethod("get" + name);
                    // 調用getter方法獲取屬性值
                    String value = (String) m.invoke(model);
                    System.out.println("數據類型爲：String");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
            if (type.equals("class java.lang.Integer")) {
                    Method m = model.getClass().getMethod("get" + name);
                    Integer value = (Integer) m.invoke(model);
                    System.out.println("數據類型爲：Integer");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
            if (type.equals("class java.lang.Short")) {
                    Method m = model.getClass().getMethod("get" + name);
                    Short value = (Short) m.invoke(model);
                    System.out.println("數據類型爲：Short");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
            if (type.equals("class java.lang.Double")) {
                    Method m = model.getClass().getMethod("get" + name);
                    Double value = (Double) m.invoke(model);
                    System.out.println("數據類型爲：Double");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
            if (type.equals("class java.lang.Boolean")) {
                    Method m = model.getClass().getMethod("get" + name);
                    Boolean value = (Boolean) m.invoke(model);
                    System.out.println("數據類型爲：Boolean");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
            if (type.equals("class java.util.Date")) {
                    Method m = model.getClass().getMethod("get" + name);
                    Date value = (Date) m.invoke(model);
                    System.out.println("數據類型爲：Date");
                    if (value != null) {
                            System.out.println("屬性值爲：" + value);
                    } else {
                            System.out.println("屬性值爲：空");
                    }
            }
    }
}