【发布时间】:2012-12-31 23:39:32
【问题描述】:
另一个涉及 SQLite 方面的 Java 问题。
我已经运行了我的应用程序,一切都很好,直到我来添加插入的数据。我在“12-31 22:54:51.133: I/Database(273): sqlite returned: error code = 1, msg = no such table: peopleTable”的 Log cat 中收到错误。这显然导致我无法使用我的插入方法添加到数据库。
我已尝试重命名数据库,但我的表创建语句或 onCreate/Upgrade 方法没有发现任何问题。
代码如下:
代码:
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" +
KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
KEY_NAME + " TEXT NOT NULL, " +
KEY_HOTNESS + "TEXT NOT NULL);");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXCISTS" + DATABASE_TABLE);
onCreate(db);
}
还有日志猫:
12-31 22:54:51.133: I/Database(273): sqlite returned: error code = 1, msg = no such table: peopleTable
12-31 22:54:51.158: E/Database(273): Error inserting persons_hotness=5 persons_name=F
12-31 22:54:51.158: E/Database(273): android.database.sqlite.SQLiteException: no such table: peopleTable: , while compiling: INSERT INTO peopleTable(persons_hotness, persons_name) VALUES(?, ?);
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:64)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:36)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1145)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1536)
12-31 22:54:51.158: E/Database(273): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1410)
12-31 22:54:51.158: E/Database(273): at com.example.sqliteexample.HotOrNot.createEntry(HotOrNot.java:174)
12-31 22:54:51.158: E/Database(273): at com.example.sqliteexample.SQLiteExample.onClick(SQLiteExample.java:57)
12-31 22:54:51.158: E/Database(273): at android.view.View.performClick(View.java:2408)
12-31 22:54:51.158: E/Database(273): at android.view.View$PerformClick.run(View.java:8816)
12-31 22:54:51.158: E/Database(273): at android.os.Handler.handleCallback(Handler.java:587)
12-31 22:54:51.158: E/Database(273): at android.os.Handler.dispatchMessage(Handler.java:92)
12-31 22:54:51.158: E/Database(273): at android.os.Looper.loop(Looper.java:123)
12-31 22:54:51.158: E/Database(273): at android.app.ActivityThread.main(ActivityThread.java:4627)
12-31 22:54:51.158: E/Database(273): at java.lang.reflect.Method.invokeNative(Native Method)
12-31 22:54:51.158: E/Database(273): at java.lang.reflect.Method.invoke(Method.java:521)
12-31 22:54:51.158: E/Database(273): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-31 22:54:51.158: E/Database(273): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-31 22:54:51.158: E/Database(273): at dalvik.system.NativeStart.main(Native Method)
12-31 23:17:38.508: W/KeyCharacterMap(273): No keyboard for id 0
12-31 23:17:38.508: W/KeyCharacterMap(273): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
12-31 23:17:40.238: D/AndroidRuntime(273): Shutting down VM
12-31 23:17:40.238: W/dalvikvm(273): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
12-31 23:17:40.259: E/AndroidRuntime(273): FATAL EXCEPTION: main
12-31 23:17:40.259: E/AndroidRuntime(273): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.example.sqliteexample.SQLView }
12-31 23:17:40.259: E/AndroidRuntime(273): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1408)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.app.Activity.startActivityForResult(Activity.java:2817)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.app.Activity.startActivity(Activity.java:2923)
12-31 23:17:40.259: E/AndroidRuntime(273): at com.example.sqliteexample.SQLiteExample.onClick(SQLiteExample.java:94)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.view.View.performClick(View.java:2408)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.view.View$PerformClick.run(View.java:8816)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.os.Handler.handleCallback(Handler.java:587)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.os.Handler.dispatchMessage(Handler.java:92)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.os.Looper.loop(Looper.java:123)
12-31 23:17:40.259: E/AndroidRuntime(273): at android.app.ActivityThread.main(ActivityThread.java:4627)
12-31 23:17:40.259: E/AndroidRuntime(273): at java.lang.reflect.Method.invokeNative(Native Method)
12-31 23:17:40.259: E/AndroidRuntime(273): at java.lang.reflect.Method.invoke(Method.java:521)
12-31 23:17:40.259: E/AndroidRuntime(273): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-31 23:17:40.259: E/AndroidRuntime(273): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-31 23:17:40.259: E/AndroidRuntime(273): at dalvik.system.NativeStart.main(Native Method)
【问题讨论】:
-
你确认表是在数据库中创建的吗? DATABASE_TABLE 中的值是什么?
-
你确认
onCreate()确实被调用了吗?添加Log.d()调用以在 logcat 中输出一些内容。此外,将您的表放在onUpgrade()中可能不是一个好主意。现在,您应该将此方法留空。 -
你的
Java code和你的logcat似乎完全没有关系。就像你是creating and dropping table in java code而logcat says inserting data into DB。 -
Mike,我需要通过 Log.d 方法来验证吗? DATABASE_TABLE 是一个变量,它保存用于创建表的表名的值“peopleTable”。
-
提交。我的代码中有其他方法可以从我的 xml 的两个“editTexts”中插入数据。当我按下按钮并尝试插入数据时出现此错误。我没有包含其他代码,因为我只是想看看是否有人能发现我的创建和升级方法有任何问题。