在我的应用程序的这一部分中，我试图将从改型onResponse方法获取的结果数据保存到sqlite数据库中，但是我收到多个E/SQLiteDatabase: Error inserting错误android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed:
日志
E/SQLiteDatabase: Error inserting kind=blogger#post etag="iHf3yWDE_geBgZ8U7rgZ_xuTeAQ/dGltZXN0YW1wOiAxNTQ4NTAwNzI5NjI4Cm9mZnNldDogNzIwMDAwMAo" id=2632206540636403989 published=2019-01-26T10:44:00+02:00 updated=2019-01-26T13:05:29+02:00 url=http://www.pro-cs-is.com/2019/01/view-see-saved-wifi-password-android.html content=<div dir="rtl" style="text-align: right;" trbidi="on">
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<span lang="AR-EG" style="font-family: "tahoma" , sans-serif; font-size: 14.0pt; line-height: 107%;">في بعض الأحيان ينسى مستخدمي الهواتف الذكية كلمة مرور شبكة ال WiFi المتصلين بها في الأماكن العامة أو العمل ويحتاجونها لمشاركتها مع الأصدقاء أو لأي أغراض آخرى، في هذا الموضوع سأقوم بشرح طريقتين لإستخراج كلمات مرور شبكات الواي فاي المحفوظة على هواتف الأندرويد.</span></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;"><b>ملحوظة : جميع الطرق تحتاج إلى صلاحيات مدير النظام (Root)</b></span></span></blockquote>
<span style="font-family: "tahoma" , sans-serif; font-size: 18.6667px;">إذا لم يكن بهاتفك صلاحيات مدير النظام يمكنك الإطلاع على هذا الموضوع <a href="https://www.pro-cs-is.com/2016/08/how-to-root-android.html" target="_blank">أفضل برامج للحصول على صلاحيات مدير النظام (Root) لجهازك الأندرويد</a></span><br />
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">الطريقة الأولى :</span></span></h3>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">عن طريق تطبيق <a href="https://play.google.com/store/apps/details?id=htmt.wifipassword" rel="nofollow" target="_blank">WiFi Password, IP, DNS</a></span></span><br />
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<a href="https://4.bp.blogspot.com/-usMjRJwPBwE/XEr1aoQyhBI/AAAAAAAAHRM/eUj9EDxzrBkSKb6G09P2Y4iYPpzTO7SwACLcBGAs/s1600/WiFi%2BPassword%252C%2BIP%252C%2BDNS.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="632" data-original-width="1063" height="380" src="https://4.bp.blogspot.com/-usMjRJwPBwE/XEr1aoQyhBI/AAAAAAAAHRM/eUj9EDxzrBkSKb6G09P2Y4iYPpzTO7SwACLcBGAs/s640/WiFi%2BPassword%252C%2BIP%252C%2BDNS.jpg" width="640" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">بعد تحميل وتنصيب التطبيق قم بفتحه ثم إضغط على <b>Show WiFi Profiles</b> سيطلب التطبيق صلاحيات مدير النظام (root) قم بمنحه أياها</span></span><br />
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E/SQLiteDatabase: <a href="https://3.bp.blogspot.com/-R39qwUmqxBU/XEsCIo2NSLI/AAAAAAAAHRY/cLvsxmXKadkqTPrjgH_4JrIGLJvfwiobwCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A5-%25D9%25A1%25D9%25A3-%25D9%25A2%25D9%25A5-%25D9%25A4%25D9%25A7.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://3.bp.blogspot.com/-R39qwUmqxBU/XEsCIo2NSLI/AAAAAAAAHRY/cLvsxmXKadkqTPrjgH_4JrIGLJvfwiobwCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A5-%25D9%25A1%25D9%25A3-%25D9%25A2%25D9%25A5-%25D9%25A4%25D9%25A7.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">بعدها ستجد مباشرة جميع معلومات الشبكات التي قمت بالإتصال بها في هاتفك و كلمة المرور أمام كلمة <b>Password</b></span></span><br />
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<a href="https://4.bp.blogspot.com/-ikGMUxJyx8A/XEsFxFb3oRI/AAAAAAAAHRw/ByDdHVNO4Qgak5MLF49BnJT1m2q_timbQCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A5-%25D9%25A1%25D9%25A3-%25D9%25A4%25D9%25A3-%25D9%25A1%25D9%25A7.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://4.bp.blogspot.com/-ikGMUxJyx8A/XEsFxFb3oRI/AAAAAAAAHRw/ByDdHVNO4Qgak5MLF49BnJT1m2q_timbQCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A5-%25D9%25A1%25D9%25A3-%25D9%25A4%25D9%25A3-%25D9%25A1%25D9%25A7.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;"><b>الطريقة الثانية :</b></span></span><br />
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">عن طريق تطبيق <b><a href="https://play.google.com/store/apps/details?id=com.estrongs.android.pop" rel="nofollow" target="_blank">Es File Explorer File Manger</a></b></span></span><br />
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<a href="https://4.bp.blogspot.com/-a4bq9s_j3LI/XEsmj8E6x6I/AAAAAAAAHSM/ZiHDgBUKOMkYMIbMpeHPmmvMKuuXOWbLwCLcBGAs/s1600/Es%2BFile%2BExplorer%2BFile%2BManger.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="632" data-original-width="1110" height="364" src="https://4.bp.blogspot.com/-a4bq9s_j3LI/XEsmj8E6x6I/AAAAAAAAHSM/ZiHDgBUKOMkYMIbMpeHPmmvMKuuXOWbLwCLcBGAs/s640/Es%2BFile%2BExplorer%2BFile%2BManger.jpg" width="640" /></a></div>
<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;"><br /></span></span><span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">بعد تحميل وتنصيب التطبيق قم بفتحه ثم قم بالنقر على الثلاثة خطوط المتواجدين بالأعلى لفتح القائمة الجانبية</span></span><br />
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E/SQLiteDatabase: <div class="separator" style="clear: both; text-align: center;">
<a href="https://4.bp.blogspot.com/-5J70yswDwPs/XEwRZWO5wkI/AAAAAAAAHSc/LbdMQ7RJOCgzhFT7dnRBeKqOx0gEXuQPACLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A0%25D9%25A9-%25D9%25A3%25D9%25A3-%25D9%25A0%25D9%25A7.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://4.bp.blogspot.com/-5J70yswDwPs/XEwRZWO5wkI/AAAAAAAAHSc/LbdMQ7RJOCgzhFT7dnRBeKqOx0gEXuQPACLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A0%25D9%25A9-%25D9%25A3%25D9%25A3-%25D9%25A0%25D9%25A7.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">من القائمة الجانبية قم بالنزول حتى تجد خيار <b>متصفح ملفات النظام</b> و إضغط عليه، </span></span><span style="font-family: "tahoma" , sans-serif; font-size: 18.6667px;">سيطلب التطبيق صلاحيات مدير النظام (root) قم بمنحه أياها</span><br />
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<a href="https://4.bp.blogspot.com/-hV9L8BK77Vc/XEwSxR1SabI/AAAAAAAAHSo/9uziSP0y0GsHvaKeAseLi5Coi4zWXmuugCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A0%25D9%25A9-%25D9%25A3%25D9%25A3-%25D9%25A5%25D9%25A6.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://4.bp.blogspot.com/-hV9L8BK77Vc/XEwSxR1SabI/AAAAAAAAHSo/9uziSP0y0GsHvaKeAseLi5Coi4zWXmuugCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A0%25D9%25A9-%25D9%25A3%25D9%25A3-%25D9%25A5%25D9%25A6.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif; font-size: 18.6667px;">بعد منح التطبيق الصلاحيات، من نفس القائمة قم بالنزول إلى الأسفل حتى تجد خيار محلي أو Local إذا كانت لغة الهاتف بالإنجليزية</span><br />
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<a href="https://4.bp.blogspot.com/-wTj8cDUCqvE/XEwT_KiYjfI/AAAAAAAAHS0/Fb8gaeNopFg4Cwz9c8rIgNCWX2-mpTdDgCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A0%25D9%25A9-%25D9%25A0%25D9%25A3.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://4.bp.blogspot.com/-wTj8cDUCqvE/XEwT_KiYjfI/AAAAAAAAHS0/Fb8gaeNopFg4Cwz9c8rIgNCWX2-mpTdDgCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A0%25D9%25A9-%25D9%25A0%25D9%25A3.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">بعدها اختر الجهاز/Device</span></span><br />
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<a href="https://4.bp.blogspot.com/-t_nZeL67iqI/XEwUkXGZHRI/AAAAAAAAHS8/CckDMyA7j7kBeqsOqktMDx7hJZ9ATLtDgCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A0%25D9%25A9-%25D9%25A2%25D9%25A0.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://4.bp.blogspot.com/-t_nZeL67iqI/XEwUkXGZHRI/AAAAAAAAHS8/CckDMyA7j7kBeqsOqktMDx7hJZ9ATLtDgCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A0%25D9%25A9-%25D9%25A2%25D9%25A0.png" width="360" /></a></div>
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">سيقوم التطبيق بفتح مجلدات النظام نحتاج إلى الوصول إلى هذا المسار</span></span><br />
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<blockquote class="tr_bq">
<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;"><b>data/misc/wifi/</b></span></span></blockquote>
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<a href="https://3.bp.blogspot.com/-MBtwL3CjvH0/XEwVs2iZSsI/AAAAAAAAHTI/x5OUCa7sPNUW-s6MlAp6D-Qvqolgwm9igCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A1%25D9%25A0-%25D9%25A5%25D9%25A4.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://3.bp.blogspot.com/-MBtwL3CjvH0/XEwVs2iZSsI/AAAAAAAAHTI/x5OUCa7sPNUW-s6MlAp6D-Qvqolgwm9igCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A1%25D9%25A0-%25D9%25A5%25D9%25A4.png" width="360" /></a></div>
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<a href="https://3.bp.blogspot.com/-36O8nUlF20k/XEwWVO7oJ2I/AAAAAAAAHTY/3Uv4IBwUpeYGiIiArOWmaA7-yFx3bhhIgCLcBGAs/s1600/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A1%25D9%25A1-%25D9%25A3%25D9%25A9.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1280" data-original-width="720" height="640" src="https://3.bp.blogspot.com/-36O8nUlF20k/XEwWVO7oJ2I/AAAAAAAAHTY/3Uv4IBwUpeYGiIiArOWmaA7-yFx3bhhIgCLcBGAs/s640/Screenshot_%25D9%25A2%25D9%25A0%25D9%25A1%25D9%25A9-%25D9%25A0%25D9%25A1-%25D9%25A2%25D9%25A4-%25D9%25A1%25D9%25A0-%25D9%25A1%25D9%25A1-%25D9%25A3%25D9%25A9.png" width="360" /></a></div>
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E/SQLiteDatabase: <span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">وأخيراً ستجد ملف <b>wpa_supplicant.conf</b> والذي يحتوي على معلومات جميع الشبكات التي قمت بالإتصال بها على الهاتف، إضغط عليه لفتحه</span></span><br />
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">قم بإختيار محرر النصوص الخاص بالتطبيق ES ، <b>لن يفتح بأي محرر نصوص آخر</b></span></span><br />
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<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;">ستجد مباشرة جميع معلومات الشبكات في هذا الملف من ضمنها كلمات المرور أمام كلمة <b>"psk"</b></span></span><br />
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<blockquote class="tr_bq">
<span style="font-family: "tahoma" , sans-serif;"><span style="font-size: 18.6667px;"><b>بعض الشبكات لن تجد هذا السطر و هذا معناه إنها شبكة مفتوحة "بدون ك�
E/SQLiteDatabase: android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed: items.id (code 1555)
at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method)
at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConnection.java:783)
at android.database.sqlite.SQLiteSession.executeForLastInsertedRowId(SQLiteSession.java:788)
at android.database.sqlite.SQLiteStatement.executeInsert(SQLiteStatement.java:86)
at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1548)
at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1417)
at www.pro_cs_is.com.ItemsDBHelper.addItem(ItemsDBHelper.java:72)
at www.pro_cs_is.com.MainActivity$2.onResponse(MainActivity.java:198)
at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70)
at android.os.Handler.handleCallback(Handler.java:794)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:173)
at android.app.ActivityThread.main(ActivityThread.java:6653)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:821)
我从日志中了解到，编写用于创建ITEMS_TABLE的语法时存在错误，但我对其进行了多次审查，并且一切似乎都很好。
注意：我试图将 KEY_ID 主键索引替换为第二个，并在sql子句中首先创建 KEY_KIND ，例如其在已定义类中的位置，但结果相同！
ItemsDBHelper类
public class ItemsDBHelper extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "itemsInfo";
private static final String TABLE_NAME = "items";
private static final String KEY_KIND = "kind";
private static final String KEY_ID = "id";
private static final String KEY_PUBLISHED = "published";
private static final String KEY_UPDATED = "updated";
private static final String KEY_ETAG = "etag";
private static final String KEY_URL = "url";
private static final String KEY_SELFLINK = "selfLink";
private static final String KEY_CONTENT = "content";
private static final String KEY_LABELS = "labels";
public ItemsDBHelper(Context context){
super(context,DATABASE_NAME,null,DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
Log.e("oncreate","oncreate");
String CREATE_ITEMS_TABLE = "CREATE TABLE "+ TABLE_NAME + " ("+KEY_ID+" INTEGER PRIMARY KEY, "+KEY_KIND+" TEXT, "+KEY_PUBLISHED+" TEXT, "
+KEY_UPDATED+" TEXT, "+KEY_ETAG+" TEXT, "+KEY_URL+" TEXT, "
+KEY_SELFLINK+" TEXT, "+KEY_CONTENT+" TEXT, "+KEY_LABELS+" TEXT)";
db.execSQL(CREATE_ITEMS_TABLE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.e("onupgrade","onupgrade");
db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME);
onCreate(db);
}
public void addItem(Item item){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_ID,item.getId());
values.put(KEY_KIND,item.getKind());
values.put(KEY_PUBLISHED,item.getPublished());
values.put(KEY_UPDATED,item.getUpdated());
values.put(KEY_ETAG,item.getEtag());
values.put(KEY_URL,item.getUrl());
values.put(KEY_SELFLINK,item.getSelfLink());
values.put(KEY_CONTENT,item.getContent());
values.put(KEY_LABELS,convertListToString(item.getLabels()));
db.insert(TABLE_NAME,null,values);
db.close();
}
public Item getItem(int id){
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(TABLE_NAME,
new String[]{KEY_ID,KEY_KIND,KEY_PUBLISHED,
KEY_UPDATED,KEY_ETAG,KEY_URL,KEY_SELFLINK,KEY_CONTENT},KEY_ID+"=?",
new String[]{String.valueOf(id)},null,null,null,null);
Item item=null;
if(cursor!=null){
cursor.moveToFirst();
item = new Item();
}
return item;
}
public List<Item> getAllShops(){
List<Item> items = new ArrayList<>();
SQLiteDatabase dp = this.getReadableDatabase();
String selectQuery = "SELECT * FROM "+TABLE_NAME;
Cursor cursor = dp.rawQuery(selectQuery,null);
if(cursor!=null){
if(cursor.moveToFirst()){
do{
Item item = new Item();
item.setId(cursor.getString(0));
item.setKind(cursor.getString(1));
item.setPublished(cursor.getString(2));
item.setUpdated(cursor.getString(3));
item.setEtag(cursor.getString(4));
item.setUrl(cursor.getString(5));
item.setSelfLink(cursor.getString(5));
item.setContent(cursor.getString(6));
item.setLabels(convertStringToList(cursor.getString(7)));
items.add(item);
}while (cursor.moveToNext());
}
}
return items;
}
private static final String LIST_SEPARATOR = "__,__";
public static String convertListToString(List<String> stringList) {
StringBuilder stringBuilder = new StringBuilder();
for (String str : stringList) {
stringBuilder.append(str).append(LIST_SEPARATOR);
}
// Remove last separator
stringBuilder.setLength(stringBuilder.length() - LIST_SEPARATOR.length());
return stringBuilder.toString();
}
public static List<String> convertStringToList(String str) {
return Arrays.asList(str.split(LIST_SEPARATOR));
}
}
，我在回复方法中就这样使用了它
final Call<PostList> postList = BloggerAPI.getService().getPostList(url);
postList.enqueue(new Callback<PostList>() {
@Override
public void onResponse(Call<PostList> call, Response<PostList> response) {
PostList list = response.body();
token = list.getNextPageToken();
items.addAll(list.getItems());
for (int i = 0 ; i< items.size();i++) {
itemsDBHelper = new ItemsDBHelper(MainActivity.this);
itemsDBHelper.addItem(items.get(i));
}
Item item1 = itemsDBHelper.getItem(0);
Log.e("TEST ITEM 01",item1.getTitle()+ "\n" + item1.getUrl());
Item item2 = itemsDBHelper.getItem(1);
Log.e("TEST ITEM 01",item2.getTitle()+ "\n" + item2.getUrl());
adapter.notifyDataSetChanged();
Toast.makeText(MainActivity.this, "Sucess", Toast.LENGTH_LONG).show();
}
@Override
public void onFailure(Call<PostList> call, Throwable t) {
Toast.makeText(MainActivity.this,"Error occured",Toast.LENGTH_LONG).show();
Log.i(TAG, "onFailure: "+t.toString());
}
});
答案 0 :(得分：1)
问题是 id 列不是唯一的，这不是错误，而是由于有效地使用了INSERT或IGNORE，但是正在编写该异常，因此该陷阱已被捕获到日志。但是，当发生这种情况时，将不会插入该行。
id 列是使用INTEGER PRIMARY KEY定义的，这暗示着UNIQUE约束，它另外使该列成为 rowid 的别名，然后使该列具有一个特殊属性/处理情况。也就是说，如果未指定任何值，则SQLite将生成一个唯一值。该值将是一个唯一的64位带符号整数，最初是1，然后通常比最后一个值大1。
通常不会为该列提供任何值，而是使用SQLite生成的值。
我建议您改用典型用法，从而相应地修改 addItem 方法，例如：-
public long addItem(Item item){ //<<<<<<<<<< returns long (id assigned by SQLite)
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
//values.put(KEY_ID,item.getId()); //<<<<<<<<<< allow SQLite to assign id
values.put(KEY_KIND,item.getKind());
values.put(KEY_PUBLISHED,item.getPublished());
values.put(KEY_UPDATED,item.getUpdated());
values.put(KEY_ETAG,item.getEtag());
values.put(KEY_URL,item.getUrl());
values.put(KEY_SELFLINK,item.getSelfLink());
values.put(KEY_CONTENT,item.getContent());
values.put(KEY_LABELS,convertListToString(item.getLabels()));
db.insert(TABLE_NAME,null,values);
db.close();
}
插入行后，然后应在 item 对象中设置 id ，并使用 addItem 方法返回的值（如果该对象）然后将被随后使用。