我的程序在insertData崩溃了，而且我不知道如何确定此错误的原因（我在Android数据库开发中处于初级阶段且我从未使用过它前）。
我认为我的insert方法没有正确处理插入值，如boolean或int。有人可以指出这个错误的原因吗？
06-02 12：28：04.439 8601-8601 /？ D / ADB_SERVICES：因为is_eof = 1 r = -1 s-＆gt; fde.force_eof = 0
而关闭
public class DataBase extends SQLiteOpenHelper{
public static final String DATABASE_NAME = "DataOfSchedule.db";
public static final String TABLE_NAME = "DataOfSchedule_table";
public static final String COL_ID = "ID";
public static final String COL_NAME = "NAME";
public static final String COL_AGE = "AGE";
public static final String COL_GENDER_M = "GENDER_M";
public static final String COL_GENDER_F = "GENDER_F";
public static final String COL_WEIGHT = "WEIGHT";
public static final String COL_HEIGHT = "HEIGHT";
public static final String COL_TRAUMA = "TRAUMA";
public DataBase(Context context){
super(context, DATABASE_NAME, null,1);
}
@Override
public void onCreate(SQLiteDatabase db){
db.execSQL("CREATE TABLE" + TABLE_NAME +
COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COL_NAME + " TEXT," +
COL_AGE + " INTEGER NOT NULL DEFAULT 0, " +
COL_GENDER_M + " INTEGER NOT NULL DEFAULT 0, " +
COL_GENDER_F + " INTEGER NOT NULL DEFAULT 0, " +
COL_TRAUMA + " INTEGER NOT NULL DEFAULT 0, " +
COL_WEIGHT + " INTEGER NOT NULL DEFAULT 0, " +
COL_HEIGHT + " INTEGER NOT NULL DEFAULT 0);");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){
db.execSQL("DROP TABLE IF EXISTS" + TABLE_NAME);
}
// public boolean insertData(String name, Integer age, Integer sex_male, Integer sex_female, Integer weight, Integer height, Integer trauma){
// SQLiteDatabase db = this.getWritableDatabase();
// ContentValues contentValues = new ContentValues();
public boolean insertData(String name, int age, int gender_m, int gender_f, int weight, int height, int trauma){
boolean success = false;
try{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_NAME, name);
contentValues.put(COL_AGE, age);
contentValues.put(COL_GENDER_M, gender_m);
contentValues.put(COL_GENDER_F, gender_f);
contentValues.put(COL_WEIGHT, weight);
contentValues.put(COL_HEIGHT, height);
contentValues.put(COL_TRAUMA, trauma);
long result = db.insert(TABLE_NAME,null,contentValues);
db.close();
if(result != -1) success = true;
}
catch(Exception ex){
}
return success;
}
public Cursor getALLData(){
SQLiteDatabase db = this.getWritableDatabase();
Cursor res = db.rawQuery("Select * from "+ TABLE_NAME,null);
return res;
}
}
public class InsertData extends AppCompatActivity {
DataBase myDb;
EditText txtName, txtAge , txtWeight, txtHeight;
CheckBox boxGender_m,boxGender_f,boxTrauma;
Button btnClick;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_insert_data);
myDb = new DataBase(this);
txtName = (EditText) findViewById(R.id.name);
txtAge = (EditText) findViewById(R.id.age);
boxGender_m = (CheckBox) findViewById(R.id.gender_m);
boxGender_f = (CheckBox) findViewById(R.id.gender_f);
boxTrauma = (CheckBox) findViewById(R.id.trauma);
txtWeight = (EditText) findViewById(R.id.weight);
txtHeight = (EditText) findViewById(R.id.height);
btnClick = (Button) findViewById(R.id.InsertBtn);
btnClick.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
ClickMe();
}
});
}
private void ClickMe(){
String name = txtName.getText().toString();
String age = txtAge.getText().toString();
// String gender_m = boxGender_m.getText().toString(); Wrong
// String gender_f = boxGender_f.getText().toString(); Wrong
// String trauma = boxTrauma.getText().toString();
String weight = txtName.getText().toString();
String height = txtName.getText().toString();
int gender_int_m = 0;
if (boxGender_m.isChecked()) {
gender_int_m = 1;
}
int gender_int_f = 0;
if (boxGender_f.isChecked()) {
gender_int_f = 1;
}
int trauma_int = 0;
if (boxTrauma.isChecked()) {
gender_int_f = 1;
}
// int gender_int_m = Integer.parseInt(gender_m);
// int gender_int_f = Integer.parseInt(gender_f);
// int trauma_int = Integer.parseInt(trauma);
int weight_int = Integer.parseInt(weight);
int age_int = Integer.parseInt(age);
int height_int = Integer.parseInt(height);
Boolean result = myDb.insertData (name, age_int, gender_int_m, gender_int_f, weight_int, height_int, trauma_int);
if (result == true){
Toast.makeText(this, "Data Inserted Successfully",Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(this, "Data Inserted Failed",Toast.LENGTH_SHORT).show();
}
Intent i = new Intent(this,ResultData.class);
startActivity(i);
}
}
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
tools:context="daniel_nikulshyn_and_andrew_rybka.myway.InsertData">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<TextView
android:id="@+id/heading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/insert_heading"
android:layout_gravity="center"
android:textSize="16dp"
android:textColor="#021aee"/>
<EditText
android:id="@+id/name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/insert_name"/>
<EditText
android:id="@+id/age"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/insert_age"
android:numeric="integer"/>
<EditText
android:id="@+id/weight"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/insert_weight"
android:numeric="integer"/>
<EditText
android:id="@+id/height"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/insert_height"
android:numeric="integer"/>
<TextView
android:padding="10dp"
android:text="@string/insert_gender"
android:layout_gravity="left"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<CheckBox
android:id="@+id/gender_m"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/male"/>
<CheckBox
android:id="@+id/gender_f"
android:text="@string/female"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:padding="10dp"
android:text="@string/insert_trauma"
android:layout_gravity="left"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<CheckBox
android:id="@+id/trauma"
android:text="@string/insert_trauma_subtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"/>
<Button
android:id="@+id/InsertBtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:text="@string/insert_button"
android:textColor="#f2fde4"
android:layout_gravity="center"/>
</LinearLayout>
</ScrollView>
答案 0 :(得分：0)
您似乎遇到了一些问题。但是，D/ADB_SERVICES: closing because is_eof=1 r=-1 s->fde.force_eof=0似乎不是其中之一。 D /表示它是DEBUG消息，不应该是show stop （这似乎是一个设备（android实现）依赖消息，有些可能得到此消息，其他可能没有）。
在创建数据库和表之前（假设只有上面的活动），插入可能会失败（如果名称输入不是数字），因为您尝试将名称解析为int 重量和身高。
您将遇到以下问题的例外情况： -
06-03 00:08:31.518 2745-2745/va.vehicleapp E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NumberFormatException: Invalid int: "Fred"
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parse(Integer.java:375)
at java.lang.Integer.parseInt(Integer.java:366)
at java.lang.Integer.parseInt(Integer.java:332)
at va.vehicleapp.MainActivity.ClickMe(MainActivity.java:172)
at va.vehicleapp.MainActivity.access$000(MainActivity.java:16)
at va.vehicleapp.MainActivity$1.onClick(MainActivity.java:44)
at android.view.View.performClick(View.java:4084)
at android.view.View$PerformClick.run(View.java:16966)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
因此，您应该更改为使用onClick方法中的以下行： -
String weight = txtWeight.getText().toString(); // CHANGED to txtWeight not txtName
String height = txtHeight.getText().toString(); // CHANGED to txtHeight not txtName
我怀疑，如果你看一下日志，你会看到（或者在某些时候会看到，如果你甚至可以调用onCreate方法的话），那就是： -
06-02 23:24:12.135 2113-2113/? E/SQLiteLog: (1) near "TABLEDataOfSchedule_tableID": syntax error
06-02 23:24:12.135 2113-2113/? D/AndroidRuntime: Shutting down VM
06-02 23:24:12.135 2113-2113/? W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0xa6244288)
06-02 23:24:12.135 2113-2113/? E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{va.vehicleapp/va.vehicleapp.MainActivity}: android.database.sqlite.SQLiteException: near "TABLEDataOfSchedule_tableID": syntax error (code 1): , while compiling: CREATE TABLEDataOfSchedule_tableID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT,AGE INTEGER NOT NULL DEFAULT 0, GENDER_M INTEGER NOT NULL DEFAULT 0, GENDER_F INTEGER NOT NULL DEFAULT 0, TRAUMA INTEGER NOT NULL DEFAULT 0, WEIGHT INTEGER NOT NULL DEFAULT 0, HEIGHT INTEGER NOT NULL DEFAULT 0);
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.database.sqlite.SQLiteException: near "TABLEDataOfSchedule_tableID": syntax error (code 1): , while compiling: CREATE TABLEDataOfSchedule_tableID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT,AGE INTEGER NOT NULL DEFAULT 0, GENDER_M INTEGER NOT NULL DEFAULT 0, GENDER_F INTEGER NOT NULL DEFAULT 0, TRAUMA INTEGER NOT NULL DEFAULT 0, WEIGHT INTEGER NOT NULL DEFAULT 0, HEIGHT INTEGER NOT NULL DEFAULT 0);
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493)
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:1663)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1594)
at va.vehicleapp.DataBase.onCreate(DataBase.java:27)
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:164)
at va.vehicleapp.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5008)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
这是因为在数据库类中，您有一些遗漏，空格和左括号，这将导致表格无法创建。
对这些的修复是
onCreate方法更改为（请参阅对所做更改的评论）： -
@Override
public void onCreate(SQLiteDatabase db){
db.execSQL("CREATE TABLE " + TABLE_NAME + //<<<< ADDED space
" (" + // ADDED to enclose column definition in brackets
COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COL_NAME + " TEXT," +
COL_AGE + " INTEGER NOT NULL DEFAULT 0, " +
COL_GENDER_M + " INTEGER NOT NULL DEFAULT 0, " +
COL_GENDER_F + " INTEGER NOT NULL DEFAULT 0, " +
COL_TRAUMA + " INTEGER NOT NULL DEFAULT 0, " +
COL_WEIGHT + " INTEGER NOT NULL DEFAULT 0, " +
COL_HEIGHT + " INTEGER NOT NULL DEFAULT 0);");
}
，删除应用的数据，卸载应用或将数据库版本增加到2，即（将super(context, DATABASE_NAME, null,1);更改为super(context, DATABASE_NAME, null,2);
然后重新运行应用程序。
进行上述更改，运行（删除应用程序的数据后，要创建正确的表格），使用以下方法填写输入字段： -
导致Toast确认插入。