android.database.sqlite.SQLiteConstraintException

Question

android.database.sqlite.SQLiteConstraintException:错误代码19:约束失败

我的应用程序错误,不知道为什么.

当我向我的数据库添加一个新的收件箱项时,会发生这种情况.

这是我的收件箱表的Create语句:

CREATE TABLE inbox (uid text, title text, sender text, timeRecieved text, PRIMARY KEY(uid));

使用这些静态最终字符串实现;

public static final String LABEL_INBOX_UID = "uid";
    public static final String LABEL_INBOX_TITLE = "title";
    public static final String LABEL_INBOX_SENDER = "sender";
    public static final String LABEL_INBOX_TIME_RECIEVED = "timeRecieved";

    public static final int COLUMN_INBOX_UID = 0;
    public static final int COLUMN_INBOX_TITLE  = 1;
    public static final int COLUMN_INBOX_SENDER= 2;
    public static final int COLUMN_INBOX_TIME_RECIEVED = 3;

    public static final String TABLE_NAME_INBOX = "inbox";
    public static final String TABLE_CREATE_INBOX = "CREATE TABLE "
        + TABLE_NAME_INBOX + " (" + LABEL_INBOX_UID + " text, "
        + LABEL_INBOX_TITLE + " text, " + LABEL_INBOX_SENDER
        + " text, " + LABEL_INBOX_TIME_RECIEVED + " text, "
     + "PRIMARY KEY(" + LABEL_INBOX_UID + ")" + ");";

以下是获取收件箱项并将其放入contentValues()的方法

@Override
    protected void insertItem(InboxListItem object, String table) {
        InboxListItem item = object;
        inboxItemValue = new ContentValues();

        inboxItemValue.put(LABEL_INBOX_UID, item.getUid()); 
        Log.d(TAG, "item.getUid() " + item.getUid());
        inboxItemValue.put(LABEL_INBOX_TIME_RECIEVED, item.getTimeRecieved());
        Log.d(TAG, "item.getTimeRecieved() " + item.getTimeRecieved());
        inboxItemValue.put(LABEL_INBOX_TITLE, item.getTitle());
        Log.d(TAG, "item.getTitle() " + item.getTitle());
        inboxItemValue.put(LABEL_INBOX_SENDER, item.getSender());
        Log.d(TAG, "item.getSender() " + item.getSender());


        Log.d(TAG, "TABLE_CREATE_EVENTS =" + TABLE_CREATE_EVENTS);
        Log.d(TAG, "TABLE_CREATE_INBOX =" + TABLE_CREATE_INBOX);
        Log.d(TAG, "TABLE_CREATE_CONTACTS =" + TABLE_CREATE_CONTACTS);
        database().insert(TABLE_NAME_INBOX, null, inboxItemValue);
        Log.d(TAG, "database().insert(TABLE_NAME_INBOX, null, inboxItemValue);");


    }

O和这里是完整的异常消息:

11-22 12:24:39.606:错误/数据库(773):插入发送者时出错= Mit技术评论uid = 663b074a-16c8-46fb-a420-e0ebf716e212 title =新兴技术周五更新(11/19/2010)timeRecieved = 2010 -11-19T06:02:36.000Z 11-22 12:24:39.606:ERROR/Database(773):android.database.sqlite.SQLiteConstraintException:错误代码19:约束失败11-22 12:24:39.606:ERROR /数据库(773):
at android.database.sqlite.SQLiteStatement.native_execute(Native Method)11-22 12:24:39.606:ERROR/Database(773):at android.database.sqlite.SQLiteStatement.execute(SQLiteStatement.java:55)11-22 12:24:39.606:ERROR/Database(773):在android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1549)11-22 12:24:39.606:ERROR/Database(773):at android.database .sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1410)11-22 12:24:39.606:ERROR/Database(773):at com.kc.database.InboxDbWrapper.insertItem(InboxDbWrapper.java:44)11-22 12 :24:39.606:ERROR/Database(773):at com.kc.database.InboxDbWrapper.insertItem(InboxDbWrapper.java:1)11-22 12:24:39.606:ERROR/Database(773):at com.kc. database.DbWrapper.insertAllItemsToDb(DbWrapper.java:42)11-22 12:24:39.606:错误/数据库(773):at com.kc.database.InboxDbWrapper.populateTable(InboxDbWrapper.java:54)11-22 12:24:39.606:ERROR/Database(773):at com.kc.main.screen.HomeMainScreenOne .loadDataToDb(HomeMainScreenOne.java:225)11-22 12:24:39.606:ERROR/Database(773):at com.kc.main.screen.AbstractMainScreen.onCreate(AbstractMainScreen.java:125)11-22 12:24 :39.606:ERROR/Database(773):at com.kc.main.screen.HomeMainScreenOne.onCreate(HomeMainScreenOne.java:51)11-22 12:24:39.606:ERROR/Database(773):at android.app. Instrumentation.callActivityOnCreate(Instrumentation.java:1047)11-22 12:24:39.606:ERROR/Database(773):at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)11-22 12:24:39.606:错误/数据库(773):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)11-22 12:24:39.606:ERROR/Database(773):at android.app.ActivityThread.access $ 2300(ActivityThread.java:125)11-22 12:24:39.606:ERROR/Database(773):at android.app.ActivityThread $ H.handleMessage(ActivityThread.java:2033)11-22 12:24: 39.606:ERROR/Database(773):at android.os.Handler.dispatchMessage(Handler. java:99)11-22 12:24:39.606:错误/数据库(773):在android.os.Looper.loop(Looper.java:123)11-22 12:24:39.606:ERROR/Database(773) :在android.app.ActivityThread.main(ActivityThread.java:4627)11-22 12:24:39.606:ERROR/Database(773):at java.lang.reflect.Method.invokeNative(Native Method)11-22 12 :24:39.606:ERROR/Database(773):at java.lang.reflect.Method.invoke(Method.java:521)11-22 12:24:39.606:ERROR/Database(773):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:868)11-22 12:24:39.606:ERROR/Database(773):at com.android.internal.os.ZygoteInit.main( ZygoteInit.java:626)11-22 12:24:39.606:ERROR/Database(773):at dalvik.system.NativeStart.main(Native Method)

提前致谢:

编辑:更多信息.我以前创建了一个事件和contactsList表成功,这似乎工作正常.这是下面的代码:

联系方式:

// Variables used to create the events table
    public static final String TABLE_NAME_CONTACTS = "contactsList";

    public static final String LABEL_CONTACTS_UID = "uid";
    public static final String LABEL_CONTACTS_FULLNAME = "fullname";

    public static final String TABLE_CREATE_CONTACTS = "CREATE TABLE "
            + TABLE_NAME_CONTACTS + " (" + LABEL_CONTACTS_UID + " text, "
            + LABEL_CONTACTS_FULLNAME + " text, " + "PRIMARY KEY("
            + LABEL_CONTACTS_UID + ")" + ");";


    public static final int COLUMN_CONTACTS_UID = 0;
public static final int COLUMN_CONTACTS_FULLNAME = 1;

CREATE TABLE contactsList (uid text, fullname text, PRIMARY KEY(uid));

日历活动:

public static final String LABEL_EVENTS_UID = "uid";
    public static final String LABEL_EVENTS_TITLE = "title";
    public static final String LABEL_EVENTS_LOCATION = "location";
    public static final String LABEL_EVENTS_DATE = "date";
    public static final String LABEL_EVENTS_TIME = "time";
    public static final String LABEL_EVENTS_TIMEZONE = "timezone";

    public static final int COLUMN_EVENTS_UID = 0;
    public static final int COLUMN_EVENTS_TITLE = 1;
    public static final int COLUMN_EVENTS_LOCATION = 2;
    public static final int COLUMN_EVENTS_DATE = 3;
    public static final int COLUMN_EVENTS_TIME = 4;
    public static final int COLUMN_EVENTS_TIMEZONE = 5;

    // Variables used to create the events table
    public static final String TABLE_NAME_EVENTS = "events";
    public static final String TABLE_CREATE_EVENTS = "CREATE TABLE "
            + TABLE_NAME_EVENTS + " (" + LABEL_EVENTS_UID + " text, "
            + LABEL_EVENTS_TITLE + " varchar(30), " + LABEL_EVENTS_LOCATION
            + " varchar(30), " + LABEL_EVENTS_DATE + " varchar(30), "
            + LABEL_EVENTS_TIME + " varchar(30), " + LABEL_EVENTS_TIMEZONE
            + " varchar(30), " + "PRIMARY KEY(" + LABEL_EVENTS_UID + ")" + ");";

CREATE TABLE events (uid text, title varchar(30), location varchar(30), date varchar(30), time varchar(30), timezone varchar(30), PRIMARY KEY(uid));

Answer 1

您的表上唯一的约束是主键,因此您可能尝试插入具有非唯一"UID"的项目.