用SQLite崩溃的Android数据录入

任何人都可以帮我解决我的android项目中出现的错误吗？用SQLite崩溃的Android数据录入

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:orientation="vertical" > 

    <TextView 
    android:id="@+id/textView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignLeft="@+id/addButton" 
    android:layout_alignParentTop="true" 
    android:textColor="#00f" 
    android:layout_gravity="center" 
    android:text="Student Records Application" /> 

    <TextView 
    android:id="@+id/textView2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/textView1" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="15dp" 
    android:layout_gravity="center" 
    android:text="Select What you would like to do" /> 

<Button 
    android:id="@+id/addButton" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/textView1" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="15dp" 
    android:layout_gravity="center" 
    android:text="Add New Records" /> 



<Button 
    android:id="@+id/editButton" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/addButton" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="15dp" 
    android:layout_gravity="center" 
    android:text="Edit Student Records" /> 

<Button 
    android:id="@+id/deleteButton" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/editButton" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="15dp" 
    android:layout_gravity="center" 
    android:text="Delete Student Records" /> 

    </LinearLayout> 

    package com.example.studentrecord; 

    import android.os.Bundle; 
    import android.app.Activity; 
import android.content.Intent; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends Activity { 
Button addButton; 
Button editButton; 
Button deleteButton; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     addButton=(Button)findViewById(R.id.addButton); 
     addButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       Toast.makeText(MainActivity.this, "Going to add Record Activity", Toast.LENGTH_LONG).show(); 
       startActivity(new Intent(MainActivity.this, Add_Student.class)); 
      } 
     }); 
     editButton=(Button)findViewById(R.id.editButton); 
     editButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       Toast.makeText(MainActivity.this, "Going to Edit Record Activity", Toast.LENGTH_LONG).show(); 
       setContentView(R.layout.activity_edit_student); 
       startActivity(new Intent(MainActivity.this, EditStudent.class)); 
      } 
     }); 
     deleteButton=(Button)findViewById(R.id.deleteButton); 
     deleteButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       Toast.makeText(MainActivity.this, "Going to Delete Record Activity", Toast.LENGTH_LONG).show(); 
       startActivity(new Intent(MainActivity.this, Delete_Student.class)); 
      } 
     }); 



    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

}

上面的布局和代码包含在主要活动中。

package com.example.studentrecord; 

import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.util.Log; 

public class DatabaseManager { 
    public static final String DB_NAME="student"; 
    public static final String DB_TABLE="StudentInfo"; 
    public static final int DB_VERSION=1; 
    private static final String CREATE_TABLE="CREATE TABLE" + DB_TABLE + "studentId INTEGER PRIMARY KEY, firstName TEXT, lastName TEXT, gender TEXT, course TEXT. age INTEGER);"; 
    private SQLHelper helper; 
    private SQLiteDatabase db; 
    private Context context; 

    public DatabaseManager(Context c) { 
     this.context=c; 
     helper=new SQLHelper(c); 
     this.db=helper.getReadableDatabase(); 
    } 

    public DatabaseManager openReadable() throws android.database.SQLException { 
     helper=new SQLHelper(context); 
     db=helper.getReadableDatabase(); 
     return this; 
    } 

    public void close() { 
     helper.close(); 
    } 

    public Boolean addRow(Integer a, String b, String c, String d, String e, Integer f) { 
     ContentValues newStudent = new ContentValues(); 
     newStudent.put("studentId", a); 
     newStudent.put("firstName", b); 
     newStudent.put("lastName",c); 
     newStudent.put("gender",d); 
     newStudent.put("course",e); 
     newStudent.put("age", f); 

     try { 
      db.insertOrThrow(DB_TABLE, null, newStudent); 
     } 
     catch(Exception e1){ 
      Log.e("Error in inserting row", e1.toString()); 
      e1.printStackTrace(); 
      return false; 
     } 
     db.close(); 
     return true; 
    } 

    public String retrieveRows() { 
     String[] columns = new String[] {"studentId","firstName","lastName","gender","course","age"}; 
     Cursor cursor=db.query(DB_TABLE, columns, null, null, null, null, null); 
     String tableRows=""; 
     cursor.moveToFirst(); 
     while (cursor.isAfterLast()==false) { 
      tableRows=tableRows + cursor.getInt(0) + "," + cursor.getString(1)+ "," +cursor.getString(2)+","+cursor.getString(3)+","+cursor.getString(4)+","+cursor.getInt(5) + "\n"; 
      cursor.moveToNext(); 
     } 
     if(cursor!=null && !cursor.isClosed()) { 
      cursor.close(); 
     } 
     return tableRows; 
    } 

    public class SQLHelper extends SQLiteOpenHelper { 
     public SQLHelper(Context c) { 
      super(c, DB_NAME, null, DB_VERSION); 
     } 
     @Override 
     public void onCreate(SQLiteDatabase db){ 
      db.execSQL(CREATE_TABLE); 
     } 
     @Override 
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){ 
      Log.w("Students table", "Upgrading database i.e. dropping table and recreating it"); 
     } 

    } 

}

而且上面的代码包含在我的数据库管理器文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="center" 
     android:textSize="15sp" 
     android:textColor="#33f" 
     android:background="#cfcfcf" 
     android:text="Add a student Record" /> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <TextView 
      android:id="@+id/textView2" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="Student Id" /> 

     <EditText 
      android:id="@+id/studentId" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:layout_marginLeft="30dp" 
      android:inputType="number" 
      android:ems="10" > 


     </EditText> 


    </LinearLayout> 
    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal" > 

     <TextView 
      android:id="@+id/textView3" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="First Name" /> 

     <EditText 
      android:id="@+id/fName" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:layout_marginLeft="25dp" 
      android:inputType="text" 
      android:ems="10" > 


     </EditText> 


    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 
     <TextView 
      android:id="@+id/textView3" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="Last Name" /> 

     <EditText 
      android:id="@+id/lName" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:inputType="text" 
      android:layout_marginLeft="25dp" 
      android:ems="10" > 


     </EditText> 
    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 
     <TextView 
      android:id="@+id/textView4" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="Gender" /> 

     <Spinner 
      android:id="@+id/spinnerGender" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:scrollbarSize="5sp" 
      android:layout_marginLeft="45dp" 
      android:entries="@array/Gender_Array"/> 


    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 
     <TextView 
      android:id="@+id/textView5" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="Course" /> 

     <Spinner 
      android:id="@+id/spinnerCourse" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:scrollbarSize="5sp" 
      android:layout_marginLeft="45dp" 
      android:entries="@array/Course_Array"/> 


    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 
     <TextView 
      android:id="@+id/textView6" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0" 
      android:text="Age" /> 

     <EditText 
      android:id="@+id/age" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:layout_weight="0.5" 
      android:inputType="number" 
      android:layout_marginLeft="60dp" 
      android:ems="10" > 


     </EditText> 
    </LinearLayout> 



    <Button 
     android:id="@+id/buttonSubmit" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="75dp" 
     android:text="Submit" /> 



    <TextView 
     android:id="@+id/response" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="" /> 

</LinearLayout> 



package com.example.studentrecord; 

import android.os.Bundle; 
import android.app.Activity; 
import android.content.Context; 
import android.view.Menu; 
import android.view.View; 
import android.view.inputmethod.InputMethodManager; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Spinner; 
import android.widget.TextView; 
import android.widget.Toast; 
import android.view.View.OnClickListener; 


public class Add_Student extends Activity { 
    private DatabaseManager mydManager; 
    private TextView response; 
    private EditText studentId, fName, lName, age; 
    private Button submit; 
    private Boolean recordInsert; 
    private Spinner gender, course; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_add__student); 
     response=(TextView)findViewById(R.id.response); 
     submit=(Button)findViewById(R.id.buttonSubmit); 



     submit.setOnClickListener(new OnClickListener() { 

      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       //Toast 

       Toast.makeText(Add_Student.this, "clicked" , Toast.LENGTH_LONG).show(); 


       mydManager = new DatabaseManager(Add_Student.this); 
       studentId=(EditText)findViewById(R.id.studentId); 
       fName=(EditText)findViewById(R.id.fName); 
       lName=(EditText)findViewById(R.id.lName); 
       gender=(Spinner)findViewById(R.id.spinnerGender); 
       course=(Spinner)findViewById(R.id.spinnerCourse); 
       age=(EditText)findViewById(R.id.age); 

       recordInsert=mydManager.addRow(Integer.parseInt(studentId.getText().toString()), fName.getText().toString(), lName.getText().toString(), gender.getSelectedItem().toString(), course.getSelectedItem().toString(), Integer.parseInt(age.getText().toString())); 
       if (recordInsert){ 
        response.setText("The row is inserted"); 
       } 
       else 
       { 
        response.setText("Sorry, database could not be inserted"); 
       } 
       InputMethodManager imm=(InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); 
       imm.hideSoftInputFromWindow(studentId.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); 
       mydManager.close(); 
       studentId.setText(""); 
       fName.setText(""); 
       lName.setText(""); 
       gender.setSelection(0); 
       course.setSelection(0); 
       age.setText(""); 


      } 
     }); 


    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.add__student, menu); 
     return true; 
    } 

}

一切都很好，直到我执行我的提交按钮，应用程序崩溃。任何人都可以发现错误吗？

仅供参考控制台中没有错误。只有应用程序得到坠毁每当我执行提交按钮感谢

日志文件

09-22 22:44:50.737: D/dalvikvm(1297): GC_FOR_ALLOC freed 26K, 6% free 4192K/4428K, paused 19ms, total 20ms 
09-22 22:44:50.767: D/dalvikvm(1297): GC_FOR_ALLOC freed 3K, 6% free 4445K/4692K, paused 20ms, total 21ms 
09-22 22:44:52.657: I/Choreographer(1297): Skipped 42 frames! The application may be doing too much work on its main thread. 
09-22 22:44:53.267: E/SQLiteLog(1297): (1) near "TABLEStudentInfostudentId": syntax error 
09-22 22:44:53.267: D/AndroidRuntime(1297): Shutting down VM 
09-22 22:44:53.267: W/dalvikvm(1297): threadid=1: thread exiting with uncaught exception (group=0xb3af6b90) 
09-22 22:44:53.287: E/AndroidRuntime(1297): FATAL EXCEPTION: main 
09-22 22:44:53.287: E/AndroidRuntime(1297): Process: com.example.studentrecord, PID: 1297 
09-22 22:44:53.287: E/AndroidRuntime(1297): android.database.sqlite.SQLiteException: near "TABLEStudentInfostudentId": syntax error (code 1): , while compiling: CREATE TABLEStudentInfostudentId INTEGER PRIMARY KEY, firstName TEXT, lastName TEXT, gender TEXT, course TEXT. age INTEGER); 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1672) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1603) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at com.example.studentrecord.DatabaseManager$SQLHelper.onCreate(DatabaseManager.java:77) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:188) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at com.example.studentrecord.DatabaseManager.<init>(DatabaseManager.java:22) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at com.example.studentrecord.Add_Student$1.onClick(Add_Student.java:43) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.view.View.performClick(View.java:4424) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.view.View$PerformClick.run(View.java:18383) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.os.Handler.handleCallback(Handler.java:733) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.os.Handler.dispatchMessage(Handler.java:95) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.os.Looper.loop(Looper.java:137) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at android.app.ActivityThread.main(ActivityThread.java:4998) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at java.lang.reflect.Method.invokeNative(Native Method) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at java.lang.reflect.Method.invoke(Method.java:515) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593) 
09-22 22:44:53.287: E/AndroidRuntime(1297):  at dalvik.system.NativeStart.main(Native Method) 
09-22 22:44:56.597: D/gralloc_goldfish(1332): Emulator without GPU emulation detected.

来源

2014-09-23 Andy Lazuardy Putra

你可以发布崩溃的日志？ – JRowan 2014-09-23 02:35:44

欢迎来到stackoverflow！这里是[如何提出一个好问题的指导原则]（http://stackoverflow.com/help/how-to-ask）。 – josephus 2014-09-23 02:43:17

它definetly你的CREATE_TABLE字符串，我认为它缺少一个括号我张贴回答 – JRowan 2014-09-23 03:17:39

您需要在SQL前加一个空格之间CREATE TABLE和你的表名，并修复了其他一些语法错误，就会正确解析如下：

private static final String CREATE_TABLE="CREATE TABLE " + DB_TABLE + 
" (studentId INTEGER PRIMARY KEY, firstName TEXT, lastName TEXT, gender TEXT, 
course TEXT, age INTEGER);";

来源

2014-09-23 03:42:12

用SQLite崩溃的Android数据录入

回答

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