Android SQLiteException:near"；用户id"；：语法错误（代码1）

在创建表时，我在用户id附近遇到一个错误，但一切看起来都很好。请帮忙

这是我的疑问：

 String CREATE_USERS_IN_CONVERSATION_TABLE= " CREATE TABLE IF NOT EXISTS "+ UsersInConversationEntry.TABLE_NAME + "( "
            + UsersInConversationEntry.CON_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.CON_ID+") REFERENCES "+ConversationEntry.TABLE_NAME +"("+ConversationEntry.CON_ID+"), "
            + UsersInConversationEntry.USER_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.USER_ID+") REFERENCES "+UserEntry.TABLE_NAME +"("+UserEntry.USER_ID+"),"
            + UsersInConversationEntry.HAS_BLOCKED + " TEXT NOT NULL, "
            + UsersInConversationEntry.LAST_UPDATED + " TEXT NOT NULL );";
    db.execSQL(CREATE_USERS_IN_CONVERSATION_TABLE);

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: com.client.android.voices, PID: 31793
              java.lang.RuntimeException: Unable to start activity ComponentInfo{com.client.android.voices/com.client.android.voices.ChatActivity}: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
                  at android.app.ActivityThread.-wrap11(Unknown Source:0)
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
                  at android.os.Handler.dispatchMessage(Handler.java:105)
                  at android.os.Looper.loop(Looper.java:164)
                  at android.app.ActivityThread.main(ActivityThread.java:6541)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
               Caused by: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
                  at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
                  at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
                  at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
                  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
                  at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
                  at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1677)
                  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1608)
                  at com.client.android.voices.DataBase.VoicesDBHelper.onCreate(VoicesDBHelper.java:39)
                  at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:294)
                  at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:194)
                  at com.client.android.voices.ChatActivity.onCreate(ChatActivity.java:25)
                  at android.app.Activity.performCreate(Activity.java:6975)
                  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
                  at android.app.ActivityThread.-wrap11(Unknown Source:0) 
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
                  at android.os.Handler.dispatchMessage(Handler.java:105) 
                  at android.os.Looper.loop(Looper.java:164) 
                  at android.app.ActivityThread.main(ActivityThread.java:6541) 
                  at java.lang.reflect.Method.invoke(Native Method) 
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

我的错误日志：

 String CREATE_USERS_IN_CONVERSATION_TABLE= " CREATE TABLE IF NOT EXISTS "+ UsersInConversationEntry.TABLE_NAME + "( "
            + UsersInConversationEntry.CON_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.CON_ID+") REFERENCES "+ConversationEntry.TABLE_NAME +"("+ConversationEntry.CON_ID+"), "
            + UsersInConversationEntry.USER_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.USER_ID+") REFERENCES "+UserEntry.TABLE_NAME +"("+UserEntry.USER_ID+"),"
            + UsersInConversationEntry.HAS_BLOCKED + " TEXT NOT NULL, "
            + UsersInConversationEntry.LAST_UPDATED + " TEXT NOT NULL );";
    db.execSQL(CREATE_USERS_IN_CONVERSATION_TABLE);

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: com.client.android.voices, PID: 31793
              java.lang.RuntimeException: Unable to start activity ComponentInfo{com.client.android.voices/com.client.android.voices.ChatActivity}: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
                  at android.app.ActivityThread.-wrap11(Unknown Source:0)
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
                  at android.os.Handler.dispatchMessage(Handler.java:105)
                  at android.os.Looper.loop(Looper.java:164)
                  at android.app.ActivityThread.main(ActivityThread.java:6541)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
               Caused by: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
                  at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
                  at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
                  at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
                  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
                  at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
                  at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1677)
                  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1608)
                  at com.client.android.voices.DataBase.VoicesDBHelper.onCreate(VoicesDBHelper.java:39)
                  at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:294)
                  at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:194)
                  at com.client.android.voices.ChatActivity.onCreate(ChatActivity.java:25)
                  at android.app.Activity.performCreate(Activity.java:6975)
                  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
                  at android.app.ActivityThread.-wrap11(Unknown Source:0) 
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
                  at android.os.Handler.dispatchMessage(Handler.java:105) 
                  at android.os.Looper.loop(Looper.java:164) 
                  at android.app.ActivityThread.main(ActivityThread.java:6541) 
                  at java.lang.reflect.Method.invoke(Native Method) 
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

E/AndroidRuntime:致命异常：主
进程：com.client.android.voices，PID:31793
java.lang.RuntimeException:无法启动活动组件信息{com.client.android.voices/com.client.android.voices.ChatActivity}:android.database.sqlite.SQLiteException:靠近“user\u id”：语法错误（代码1）：，编译时：创建表如果不存在，则用户\u在\u对话中（con\u id INTEGER不为NULL，外键（con\u id）引用对话（_id）、用户_id整数、外键（用户_id）引用用户（_id）、已阻止的文本不为NULL、上次更新的文本不为NULL）；
在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2817）上
位于android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2892）
位于android.app.ActivityThread.-wrap11（未知来源：0）
在android.app.ActivityThread$H.handleMessage（ActivityThread.java:1593）
位于android.os.Handler.dispatchMessage（Handler.java:105）
位于android.os.Looper.loop（Looper.java:164）
位于android.app.ActivityThread.main（ActivityThread.java:6541）
位于java.lang.reflect.Method.invoke（本机方法）
在com.android.internal.os.Zygote$MethodAndArgsCaller.run上（Zygote.java:240）
位于com.android.internal.os.ZygoteInit.main（ZygoteInit.java:767）
原因：android.database.sqlite.SQLiteException:near“user\u id”：语法错误（代码1）：，编译时：如果不存在，则创建表用户\u在\u对话中（con\u id INTEGER不为NULL，外键（con\u id）引用对话（\u id），用户\u id INTEGER，外键（user\u id）引用用户（\u id），已阻止的文本不为空，上次更新的文本不为空）；
位于android.database.sqlite.SQLiteConnection.nativePrepareStatement（本机方法）
位于android.database.sqlite.SQLiteConnection.acquirePreparedStatement（SQLiteConnection.java:889）
位于android.database.sqlite.SQLiteConnection.prepare（SQLiteConnection.java:500）
位于android.database.sqlite.SQLiteSession.prepare（SQLiteSession.java:588）
位于android.database.sqlite.SQLiteProgram.（SQLiteProgram.java:58）
位于android.database.sqlite.SQLiteStatement.（SQLiteStatement.java:31）
位于android.database.sqlite.SQLiteDatabase.executeSql（SQLiteDatabase.java:1677）
位于android.database.sqlite.SQLiteDatabase.execSQL（SQLiteDatabase.java:1608）
位于com.client.android.voices.DataBase.VoicesDBHelper.onCreate（VoicesDBHelper.java:39）
位于android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked（SQLiteOpenHelper.java:294）
位于android.database.sqlite.SQLiteOpenHelper.getWritableDatabase（SQLiteOpenHelper.java:194）
在com.client.android.voices.ChatActivity.onCreate（ChatActivity.java:25）上
位于android.app.Activity.performCreate（Activity.java:6975）
位于android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1213）
在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2770）上
位于android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2892）
位于android.app.ActivityThread.-wrap11（未知来源：0）
在android.app.ActivityThread$H.handleMessage（ActivityThread.java:1593）
位于android.os.Handler.dispatchMessage（Handler.java:105）
位于android.os.Looper.loop（Looper.java:164）
位于android.app.ActivityThread.main（ActivityThread.java:6541）
位于java.lang.reflect.Method.invoke（本机方法）
在com.android.internal.os.Zygote$MethodAndArgsCaller.run上（Zygote.java:240）
位于com.android.internal.os.ZygoteInit.main（ZygoteInit.java:767）

con\u id整数不为空，外键（con\u id）引用对话（\u id）

那应该在那里吗

编辑：

 String CREATE_USERS_IN_CONVERSATION_TABLE= " CREATE TABLE IF NOT EXISTS "+ UsersInConversationEntry.TABLE_NAME + "( "
            + UsersInConversationEntry.CON_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.CON_ID+") REFERENCES "+ConversationEntry.TABLE_NAME +"("+ConversationEntry.CON_ID+"), "
            + UsersInConversationEntry.USER_ID + " INTEGER, " + " FOREIGN KEY ("+UsersInConversationEntry.USER_ID+") REFERENCES "+UserEntry.TABLE_NAME +"("+UserEntry.USER_ID+"),"
            + UsersInConversationEntry.HAS_BLOCKED + " TEXT NOT NULL, "
            + UsersInConversationEntry.LAST_UPDATED + " TEXT NOT NULL );";
    db.execSQL(CREATE_USERS_IN_CONVERSATION_TABLE);

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: com.client.android.voices, PID: 31793
              java.lang.RuntimeException: Unable to start activity ComponentInfo{com.client.android.voices/com.client.android.voices.ChatActivity}: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
                  at android.app.ActivityThread.-wrap11(Unknown Source:0)
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
                  at android.os.Handler.dispatchMessage(Handler.java:105)
                  at android.os.Looper.loop(Looper.java:164)
                  at android.app.ActivityThread.main(ActivityThread.java:6541)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
               Caused by: android.database.sqlite.SQLiteException: near "user_id": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTS users_in_conversation( con_id INTEGER NOT NULL,  FOREIGN KEY (con_id) REFERENCES Conversations(_id), user_id INTEGER,  FOREIGN KEY (user_id) REFERENCES users(_id),has_blocked TEXT NOT NULL, last_updated TEXT NOT NULL );
                  at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
                  at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
                  at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
                  at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
                  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
                  at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
                  at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1677)
                  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1608)
                  at com.client.android.voices.DataBase.VoicesDBHelper.onCreate(VoicesDBHelper.java:39)
                  at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:294)
                  at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:194)
                  at com.client.android.voices.ChatActivity.onCreate(ChatActivity.java:25)
                  at android.app.Activity.performCreate(Activity.java:6975)
                  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213)
                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770)
                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
                  at android.app.ActivityThread.-wrap11(Unknown Source:0) 
                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
                  at android.os.Handler.dispatchMessage(Handler.java:105) 
                  at android.os.Looper.loop(Looper.java:164) 
                  at android.app.ActivityThread.main(ActivityThread.java:6541) 
                  at java.lang.reflect.Method.invoke(Native Method) 
                  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

试着这样做：

 String CREATE_USERS_IN_CONVERSATION_TABLE= " CREATE TABLE IF NOT EXISTS "+ UsersInConversationEntry.TABLE_NAME + "( "
            + UsersInConversationEntry.CON_ID + " INTEGER, " 
            + UsersInConversationEntry.USER_ID + " INTEGER, " 
            + UsersInConversationEntry.HAS_BLOCKED + " TEXT NOT NULL, "
            + UsersInConversationEntry.LAST_UPDATED + " TEXT NOT NULL,"
+ " FOREIGN KEY ("+UsersInConversationEntry.CON_ID+") REFERENCES "+ConversationEntry.TABLE_NAME +"("+ConversationEntry.CON_ID+"), "
+ " FOREIGN KEY ("+UsersInConversationEntry.USER_ID+") REFERENCES "+UserEntry.TABLE_NAME +"("+UserEntry.USER_ID+")"
 + ");";
    db.execSQL(CREATE_USERS_IN_CONVERSATION_TABLE);

---

是的，如果我删除“，”，从那里，我在外键附近得到一个错误即使不为NULL也是不必要的，即使我删除了，我得到了相同的错误尝试将约束移动到create命令的末尾我没有得到你，你能帮我把代码示例粘贴到这里吗？我已经编辑了我的答案，你可以自己解决了。。。。但一切看起来都很好。请帮忙。。。你确定吗？我觉得你不好！不要回答，而是先用你自己试图解决的问题来修改你的问题。落选是因为没有表现出努力！