八、目标类型转换

   /**
     * 设置对象中指定的属性值
     * @param clazz 对象对应的类
     * @param propertyName 属性名
     * @param value 属性值
     */
    public static void setPropertyValue(Class<?> clazz, String propertyName, String value) {
        try {
            Object object = clazz.getConstructor().newInstance();
            MetaObject metaObject = MetaObject.forObject(object, new DefaultObjectFactory(),
                    new DefaultObjectWrapperFactory(), new DefaultReflectorFactory());
            if (metaObject.hasSetter(propertyName)) {
                Class<?> type = metaObject.getSetterType(propertyName);
                if (String.class == type) {
                    metaObject.setValue(propertyName, value);
                } else if (int.class == type || Integer.class == type) {
                    metaObject.setValue(propertyName, Integer.valueOf(value));
                } else if (long.class == type || Long.class == type) {
                    metaObject.setValue(propertyName, Long.valueOf(value));
                } else if (short.class == type || Short.class == type) {
                    metaObject.setValue(propertyName, Short.valueOf(value));
                } else if (byte.class == type || Byte.class == type) {
                    metaObject.setValue(propertyName, Byte.valueOf(value));
                } else if (float.class == type || Float.class == type) {
                    metaObject.setValue(propertyName, Float.valueOf(value));
                } else if (boolean.class == type || Boolean.class == type) {
                    metaObject.setValue(propertyName, Integer.valueOf(value));
                } else if (double.class == type || Double.class == type) {
                    metaObject.setValue(propertyName, Double.valueOf(value));
                } else {
                    throw new Exception("Unsupported property type for : '" + value + "' of type " + type);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }