我有一个名为Shop的类,它有2 个字段和 1 个静态字段。该类实现Parcelable接口:
public class Shop implements Parcelable{
private static int SHOP_ID = 12;
private String name;
private long fund;
//constructor with parcel
public Shop(Parcel parcel){
name = parcel.readString();
fund = parcel.readLong();
}
//normal constructor
public Shop(Owner owner){
name = owner.getShopName();
fund = owner.getFund();
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(name);
dest.writeLong(fund);
}
public static final Creator<Shop> CREATOR = new Creator<Shop>(){
@Override
public Shop createFromParcel(Parcel parcel) {
//use the constructor which accept parcel
return new Shop(parcel);
}
@Override
public Shop[] newArray(int size) {
return new Shop[size];
}
};
}
现在,我的代码使用普通的构造函数启动了一个Shop实例:
Owner owner = getOwnerInfo();
Shop myShop = new Shop(owner); //initiate a Shop with owner
然后,我的代码将shop
实例存储到 Android 的内部存储中:
String fileName = "shop_file";
try{
FileOutputStream fos = activity.openFileOutput(fileName,Context.MODE_PRIVATE);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(myShop);
oos.flush();
oos.close();
}catch(Exception ex){
...
}
但是当运行我的应用程序时,我得到了java.io.NotSerializableException:
06-12 13:04:29.258: W/System.err(2632): java.io.NotSerializableException: com.my.app.model.Shop
06-12 13:04:29.258: W/System.err(2632): at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1364)
06-12 13:04:29.266: W/System.err(2632): at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
06-12 13:04:29.266: W/System.err(2632): at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
为什么?我哪里错了?