我在数据库上插入数据时出错.
01-28 20:59:06.277: I/Database(553): sqlite returned: error code = 1, msg = table tableKo has no column named phone01-28 20:59:06.309: E/Database(553): Error inserting phone= email= address= name=01-28 20:59:06.309: E/Database(553): androID.database.sqlite.sqliteException: table tableKo has no column named phone: , while compiling: INSERT INTO tableKo(phone, email, address, name) VALUES(?, ?, ?, ?);01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteCompiledsql.native_compile(Native Method)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteCompiledsql.compile(sqliteCompiledsql.java:91)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteCompiledsql.<init>(sqliteCompiledsql.java:64)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteProgram.<init>(sqliteProgram.java:80)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteStatement.<init>(sqliteStatement.java:36)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteDatabase.compileStatement(sqliteDatabase.java:1145)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteDatabase.insertWithOnConflict(sqliteDatabase.java:1536)01-28 20:59:06.309: E/Database(553): at androID.database.sqlite.sqliteDatabase.insert(sqliteDatabase.java:1410)01-28 20:59:06.309: E/Database(553): at com.example.databasetest.DBHandler.insertData(DBHandler.java:76)01-28 20:59:06.309: E/Database(553): at com.example.databasetest.MainActivity.savebuttonHandler(MainActivity.java:39)01-28 20:59:06.309: E/Database(553): at java.lang.reflect.Method.invokeNative(Native Method)01-28 20:59:06.309: E/Database(553): at java.lang.reflect.Method.invoke(Method.java:521)01-28 20:59:06.309: E/Database(553): at androID.vIEw.VIEw.onClick(VIEw.java:2067)01-28 20:59:06.309: E/Database(553): at androID.vIEw.VIEw.performClick(VIEw.java:2408)01-28 20:59:06.309: E/Database(553): at androID.vIEw.VIEw$PerformClick.run(VIEw.java:8816)01-28 20:59:06.309: E/Database(553): at androID.os.Handler.handleCallback(Handler.java:587)01-28 20:59:06.309: E/Database(553): at androID.os.Handler.dispatchMessage(Handler.java:92)01-28 20:59:06.309: E/Database(553): at androID.os.Looper.loop(Looper.java:123)01-28 20:59:06.309: E/Database(553): at androID.app.ActivityThread.main(ActivityThread.java:4627)01-28 20:59:06.309: E/Database(553): at java.lang.reflect.Method.invokeNative(Native Method)01-28 20:59:06.309: E/Database(553): at java.lang.reflect.Method.invoke(Method.java:521)01-28 20:59:06.309: E/Database(553): at com.androID.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)01-28 20:59:06.309: E/Database(553): at com.androID.internal.os.ZygoteInit.main(ZygoteInit.java:626)01-28 20:59:06.309: E/Database(553): at dalvik.system.NativeStart.main(Native Method)
我使用一个单独的类扩展sqliteOpenHelper来处理我的数据库.我已经在互联网上搜索了一下,以了解我的表如何没有列名,这是我的代码:
我的主班
package com.example.databasetest;import androID.app.Activity;import androID.os.Bundle;import androID.vIEw.Menu;import androID.vIEw.VIEw;import androID.Widget.EditText;public class MainActivity extends Activity { EditText nameET; EditText addressET; EditText phoneET; EditText emailET; String name; String address; String phone; String email; DBHandler handler; @OverrIDe public voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentVIEw(R.layout.activity_main); nameET = (EditText)findVIEwByID(R.ID.nameET); addressET = (EditText)findVIEwByID(R.ID.addressET); phoneET = (EditText)findVIEwByID(R.ID.phoneET); emailET = (EditText)findVIEwByID(R.ID.emailET); name = nameET.getText().toString(); address = addressET.getText().toString(); phone = phoneET.getText().toString(); email = emailET.getText().toString(); handler = new DBHandler(this); } public voID savebuttonHandler(VIEw v) { handler.insertData(name, address, phone, email); } @OverrIDe public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; }}
这是我的数据库处理程序类
package com.example.databasetest;import androID.content.ContentValues;import androID.content.Context;import androID.database.sqlException;import androID.database.sqlite.sqliteDatabase;import androID.database.sqlite.sqliteOpenHelper;import androID.util.Log;public class DBHandler { public static final String table_name = "tableKo"; public static final String DATABASE_name = "databaseKo"; private static final int DATABASE_VERSION = 1; private static final String TAG = "DBHandler"; public static final String Col_ID = "_ID"; public static final String Col_name = "name"; public static final String Col_ADDRESS = "address"; public static final String Col_PHONE = "phone"; public static final String Col_EMAIL = "email"; private final Context context; private sqliteDatabase db; private MysqLiteOpenHelper DBHelper; private static final String CREATE_DATABASE ="create table " + table_name + "(" + Col_ID + " integer primary key, " + Col_name + " text not null, " + Col_ADDRESS + "text not null," + Col_PHONE + "text not null," + Col_EMAIL + "text not null);"; public DBHandler(Context ctx) { this.context = ctx; DBHelper = new MysqLiteOpenHelper(context); } private static class MysqLiteOpenHelper extends sqliteOpenHelper{ public MysqLiteOpenHelper(Context context) { super(context, DATABASE_name, null, DATABASE_VERSION); } @OverrIDe public voID onCreate(sqliteDatabase db) { // Todo auto-generated method stub try { db.execsql(CREATE_DATABASE); } catch (sqlException e) { e.printstacktrace(); } } @OverrIDe public voID onUpgrade(sqliteDatabase db, int oldVersion, int newVersion) { // Todo auto-generated method stub Log.w(TAG, oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execsql("DROP table IF EXISTS " + table_name); onCreate(db); } } public DBHandler open() throws sqlException { db = DBHelper.getWritableDatabase(); return this; } public voID close() { DBHelper.close(); } public voID insertData (String name, String address, String phone, String email) { open(); ContentValues values = new ContentValues(); values.put(Col_name, name); values.put(Col_ADDRESS, address); values.put(Col_PHONE, phone); values.put(Col_EMAIL, email); db.insert(table_name, null, values); //db.execsql("Insert into " +table_name+ " VALUES('"+Col_ID+"','"+name+"','"+address+"','"+phone+"','"+email+"');"); db.close(); }}
我的代码有什么问题?在此先感谢您的帮助
解决方法:
您错过了一个空格:
代替
Col_PHONE + "text not null,"
采用
Col_PHONE + " text not null,"
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