Room 数据库的问题 #17
Description
@database(entities = {User.class, Bus.class}, version = 1)
public abstract class AppDatabase extends RoomDatabase {
public abstract UserDao userDao();
public abstract BusDao busDao();
public static AppDatabase get(AppComponent component) {
return (AppDatabase) component.dbManager().database();
}
}
@entity(tableName = "Bus")
public class Bus {
@PrimaryKey(autoGenerate = true)
private int ids;
@SerializedName("name")
String name;
public int getIds() {
return ids;
}
public void setIds(int ids) {
this.ids = ids;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
@entity(tableName = "User")
public class User {
@PrimaryKey(autoGenerate = true)
private int id;
// ID
@SerializedName("userId")
private String userId;
// 名字
@ColumnInfo(name = "name")
private String name;
// 排除这个字段，不存入数据库
@Ignore
Bitmap bitmap;
public User() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Bitmap getBitmap() {
return bitmap;
}
public void setBitmap(Bitmap bitmap) {
this.bitmap = bitmap;
}
}
我这样操作数据库，要抛出Room cannot verify the data integrity. Looks like you've changed schema but forgot to update the version number. You can simply fix this by increasing the version number.这个异常。难道这个框架只能初始化一个类在AppDatabase 里面吗？可以qq联系你吗沟通一下这个心数据库的用法，我网上查了很多资料，都没发现什么原因导致的，有的说是数据库更新。感觉不是那么回事啊