填充Android SQLite数据库

目前，我正在尝试填充在android中创建的数据库表。我已经创建了一个数据库适配器，它允许我的活动从该适配器运行方法

DBAdapter.java

main menu.java

每当我试图保存从editText字段动态输入的信息时，它总是抛出的错误消息是：

01-26 17:41:27.814: E/SQLiteLog(3973): (1) no such table: expenses
01-26 17:41:27.854: E/SQLiteDatabase(3973): Error inserting clubs_bars=1 supermarket=1 other=1 taxi=1 clothes=1 food=1 waterbill=1 electric_gas=1 sports=1 rent=1 internetbill=1 house=1 owed_money=1
01-26 17:41:27.854: E/SQLiteDatabase(3973): android.database.sqlite.SQLiteException: no such table: expenses (code 1): , while compiling: INSERT INTO expenses(clubs_bars,supermarket,other,taxi,clothes,food,waterbill,electric_gas,sports,rent,internetbill,house,owed_money) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1467)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1339)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.example.universitybudgetub.DBAdapter.insertRecord(DBAdapter.java:97)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.example.universitybudgetub.MainMenu.addRecord(MainMenu.java:60)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invokeNative(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invoke(Method.java:525)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View$1.onClick(View.java:3628)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View.performClick(View.java:4240)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View$PerformClick.run(View.java:17721)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Handler.handleCallback(Handler.java:730)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Handler.dispatchMessage(Handler.java:92)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Looper.loop(Looper.java:137)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.app.ActivityThread.main(ActivityThread.java:5103)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invokeNative(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invoke(Method.java:525)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at dalvik.system.NativeStart.main(Native Method)
01-26 17:41:27.854: D/test(3973): added
01-26 17:41:28.264: I/Choreographer(3973): Skipped 100 frames!  The application may be doing too much work on its main thread.

01-26 17:41:27.814:E/SQLiteLog（3973）：（1）没有这样的表：费用
01-26 17:41:27.854:E/SQLiteDatabase（3973）：插入俱乐部时出错\u酒吧=1个超市=1个其他=1辆出租车=1件衣服=1件食物=1个水车=1个电\u煤气=1个体育=1个租金=1个互联网账单=1栋房子=1个欠款=1
01-26 17:41:27.854:E/SQLiteDatabase（3973）：android.database.sqlite.SQLiteException:无此类表格：费用（代码1）：在编译时：插入费用（俱乐部、酒吧、超市、其他、出租车、衣服、食品、水费、电煤气、体育、租金、互联网账单、房屋、欠款）值（？，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，？）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：在android.database.sqlite.SQLiteConnection.nativePrepareStatement（本机方法）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.database.sqlite.SQLiteConnection.acquiredpreparedstatement（SQLiteConnection.java:889）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：在android.database.sqlite.SQLiteConnection.prepare（SQLiteConnection.java:500）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：在android.database.sqlite.SQLiteSession.prepare（SQLiteSession.java:588）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.database.sqlite.SQLiteProgram.（SQLiteProgram.java:58）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.database.sqlite.SQLiteStatement.（SQLiteStatement.java:31）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.database.sqlite.SQLiteDatabase.insertWithOnConflict（SQLiteDatabase.java:1467）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.database.sqlite.SQLiteDatabase.insert（SQLiteDatabase.java:1339）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于com.example.universitybudgetub.DBAdapter.insertRecord（DBAdapter.java:97）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于com.example.universitybudgetub.MainMenu.addRecord（MainMenu.java:60）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于java.lang.reflect.Method.invokenactive（本机方法）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于java.lang.reflect.Method.invoke（Method.java:525）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：在android.view.view$1.onClick（view.java:3628）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：在android.view.view.performClick（view.java:4240）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.view.view$PerformClick.run（view.java:17721）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.os.Handler.handleCallback（Handler.java:730）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.os.Handler.dispatchMessage（Handler.java:92）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.os.Looper.loop（Looper.java:137）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于android.app.ActivityThread.main（ActivityThread.java:5103）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于java.lang.reflect.Method.invokenactive（本机方法）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于java.lang.reflect.Method.invoke（Method.java:525）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:737）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于com.android.internal.os.ZygoteInit.main（ZygoteInit.java:553）
01-26 17:41:27.854:E/SQLiteDatabase（3973）：位于dalvik.system.NativeStart.main（本机方法）
01-26 17:41:27.854:D/测试（3973）：添加
01-26 17:41:28.264:I/编舞（3973）：跳过了100帧！应用程序可能在其主线程上做了太多工作。

我能看出它抛出这个例外的主要原因是“没有这样的表格：费用”，但显然这是错误的？由于我在onCreate场景中创建了一个费用表，当我检查“DDMS”并查看data/data/packagename/databases/ExpensesDB时，我发现已经创建了数据库文件

---

看起来很奇怪，我的源代码没有任何问题。任何帮助都会很好

在DDMS视图中，您可以保存数据库文件（右上角附近的按钮），并在SQLite查看程序中打开它。这将允许您检查特定的表-我从您的帖子中得知，您已经检查了数据库，但还没有查看表的内部

我认为，除非你的手机是根目录或者其他什么东西，否则你必须通过在模拟器上运行创建的数据库来实现这一点

然后可以检查数据库是否具有所有正确的表和字段。您还可以在代码中运行SQL表创建/插入代码并猜测问题之前运行该代码

---

唯一的问题是，如果SQL无效，它有时会中断。它不会像Navicat那样帮你什么忙，但如果你的SQL是正确的，它会起作用。

你正在创建名为assignments的表，而不是expenses表。修改您的数据库\u CREATE语句。

卸载应用程序或进入设置，然后单击应用程序的“清除数据”按钮，然后再次尝试运行。我猜您在添加

CREATE TABLE

语句之前已有一个数据库。我看不出您在哪里创建了表“费用”。我可以看到您创建了表“工作分配”“但是在哪里添加‘费用’表？您还可以将使用DDMS创建的数据库文件复制到桌面上，并使用诸如用于Firefox的sqlite插件之类的实用程序查看数据库。@Commonware在编辑代码后清除了数据并启动了新的应用程序，效果非常好，谢谢！是的，你是对的，愚蠢地在我的SQL语句中添加了“assignments”而不是expenses…感谢你发现了这一点，否则我会花上几个小时进行调试。

package com.example.universitybudgetub;

import java.io.File;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;


public class MainMenu extends FragmentActivity {

    DBAdapter db = new DBAdapter(this);
    SectionsPagerAdapter mSectionsPagerAdapter;
    ViewPager mViewPager;

    //OnCreate
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_menu);
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);
    }

    public void onClick(View v){
            String destPath = "/data/data/" + getPackageName() + "/databases/ExpensesDB";
            @SuppressWarnings("unused")
            File f = new File(destPath);
    }

    //Add New Record
    public void addRecord (View v){
        Log.d("test", "adding");
        //Get data from form
        EditText foodTxt = (EditText)findViewById(R.id.editText_food);
        EditText taxiTxt = (EditText)findViewById(R.id.editText_taxi);
        EditText clothesTxt = (EditText)findViewById(R.id.editText_clothes);
        EditText sportsTxt = (EditText)findViewById(R.id.editText_sports);
        EditText supermarketTxt = (EditText)findViewById(R.id.editText_supermarket);
        EditText clubs_barsTxt = (EditText)findViewById(R.id.editText_clubs);
        EditText owed_moneyTxt = (EditText)findViewById(R.id.editText_owed_money);
        EditText otherTxt = (EditText)findViewById(R.id.editText_other);
        EditText electric_gasTxt = (EditText)findViewById(R.id.editText_electric_gas);
        EditText waterbillTxt = (EditText)findViewById(R.id.editText_water);
        EditText houseTxt = (EditText)findViewById(R.id.editText_house);
        EditText rentTxt = (EditText)findViewById(R.id.editText_rent);
        EditText internetTxt = (EditText)findViewById(R.id.editText_internet);

        db.open();
        @SuppressWarnings("unused")
        long id = db.insertRecord(foodTxt.getText().toString(), clothesTxt.getText().toString(), 
                supermarketTxt.getText().toString(), taxiTxt.getText().toString(), sportsTxt.getText().toString(), 
                clubs_barsTxt.getText().toString(), owed_moneyTxt.getText().toString(), otherTxt.getText().toString(), 
                electric_gasTxt.getText().toString(), waterbillTxt.getText().toString(), rentTxt.getText().toString(),
                houseTxt.getText().toString(), internetTxt.getText().toString()); 
        db.close();
        Log.d("test", "added");

        //Set editText fields to empty
        foodTxt.setText("");
        taxiTxt.setText("");
        clothesTxt.setText("");
        sportsTxt.setText("");
        supermarketTxt.setText("");
        clubs_barsTxt.setText("");
        owed_moneyTxt.setText("");
        otherTxt.setText("");
        electric_gasTxt.setText("");
        waterbillTxt.setText("");
        houseTxt.setText("");
        rentTxt.setText("");
        internetTxt.setText("");
        Toast.makeText(MainMenu.this, "Expenses Added", Toast.LENGTH_LONG).show();
    }

    //OnCreateOptionsMenu 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main_menu, menu);
        return true;
    }

    //SectionsPagerAdapter Controls which Fragment is retrieved for each page
    public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            Fragment fragment;
            switch (position) {
                case 0:
                    fragment = new Fragment1();
                    break;
                case 1:
                    fragment = new Fragment2();
                    break;
                case 2:
                    fragment = new Fragment3();
                    break;
                case 3:
                    fragment = new Fragment4();
                    break;
                case 4:
                    fragment = new Fragment5();
                    break;
                default:
                    fragment  = null;
                    break;
            }
            return fragment;
        }

        //Returns the amount of pages to display
        @Override
        public int getCount() {
            // Show 3 total pages.
            return 5;
        }

        //Page Title
        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
            case 0:
                return getString(R.string.title_section1);
            case 1:
                return getString(R.string.title_section2);
            case 2:
                return getString(R.string.title_section3);
            case 3:
                return getString(R.string.title_section4);
            case 4:
                return getString(R.string.title_section5);
            }
            return null;
        }
    }
}

01-26 17:41:27.814: E/SQLiteLog(3973): (1) no such table: expenses
01-26 17:41:27.854: E/SQLiteDatabase(3973): Error inserting clubs_bars=1 supermarket=1 other=1 taxi=1 clothes=1 food=1 waterbill=1 electric_gas=1 sports=1 rent=1 internetbill=1 house=1 owed_money=1
01-26 17:41:27.854: E/SQLiteDatabase(3973): android.database.sqlite.SQLiteException: no such table: expenses (code 1): , while compiling: INSERT INTO expenses(clubs_bars,supermarket,other,taxi,clothes,food,waterbill,electric_gas,sports,rent,internetbill,house,owed_money) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1467)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1339)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.example.universitybudgetub.DBAdapter.insertRecord(DBAdapter.java:97)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.example.universitybudgetub.MainMenu.addRecord(MainMenu.java:60)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invokeNative(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invoke(Method.java:525)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View$1.onClick(View.java:3628)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View.performClick(View.java:4240)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.view.View$PerformClick.run(View.java:17721)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Handler.handleCallback(Handler.java:730)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Handler.dispatchMessage(Handler.java:92)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.os.Looper.loop(Looper.java:137)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at android.app.ActivityThread.main(ActivityThread.java:5103)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invokeNative(Native Method)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at java.lang.reflect.Method.invoke(Method.java:525)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-26 17:41:27.854: E/SQLiteDatabase(3973):     at dalvik.system.NativeStart.main(Native Method)
01-26 17:41:27.854: D/test(3973): added
01-26 17:41:28.264: I/Choreographer(3973): Skipped 100 frames!  The application may be doing too much work on its main thread.