我在android / java中对Location的子类进行序列化遇到了麻烦
位置不可序列化。我有一个名为FALocation的第一个子类，它没有任何实例变量。我已经宣布它可序列化。
然后，我有一个名为Waypoint的第二个类，看起来像这样：
public class Waypoint extends FALocation implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
/* Class variables *******************************************************/
private static int CLASS_VERSION=1; //Used to version parcels
/* Instance variables ****************************************************/
private transient String type=DataHelper.PT_TYPE_US;
private transient String country;
private transient String name=null;
private transient String description=null;
private transient int elevation = 0;
private transient int population = 0; // Afterthought, added to match the DB structure
/* Constructors **********************************************************/
public Waypoint() {
super();
}
public Waypoint(double lat, double lon, String name, String description) {
super(lat, lon);
this.setName(name);
this.setDescription(description);
}
public Waypoint(Location l) {
super(l);
}
public Waypoint(String provider) {
super(provider);
}
/* Implementing serializable */
private void writeObject(java.io.ObjectOutputStream out) throws IOException {
Log.v(“DroidFA”, “Serialising \”%s\” (v%d).”, Waypoint.class.getSimpleName(), CLASS_VERSION);
out.writeInt(CLASS_VERSION);
out.writeObject(type);
out.writeObject(country);
out.writeObject(name);
out.writeObject(description);
out.writeInt(elevation);
out.writeInt(population);
}
private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException {
int serialClassVersion = in.readInt();
Log.v(“DroidFA”, “Deserialising \”%s\” (v%d).”, Waypoint.class.getSimpleName(),serialClassVersion);
type = (String) in.readObject();
country = (String) in.readObject();
name = (String) in.readObject();
description = (String) in.readObject();
elevation = in.readInt();
population = in.readInt();
}
}
序列化工作正常。
反序列化会产生跟随翼异常(腿对象包含一个航路点)：
10-05 13:50:35.259: WARN/System.err(7867): java.io.InvalidClassException: android.location.Location; IllegalAccessException
10-05 13:50:35.267: WARN/System.err(7867): at java.io.ObjectInputStream.resolveConstructorClass(ObjectInputStream.java:2010)
10-05 13:50:35.267: WARN/System.err(7867): at java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:2095)
10-05 13:50:35.267: WARN/System.err(7867): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:929)
10-05 13:50:35.267: WARN/System.err(7867): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2285)
10-05 13:50:35.278: WARN/System.err(7867): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2240)
10-05 13:50:35.278: WARN/System.err(7867): at com.droidfa.navigation.Leg.readObject(Leg.java:262)
…/…