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我想將行插入到我的數據庫中，但沒有任何東西會持久化。這裏是我的助手類：在SQLite數據庫中插入行的問題
package com.android.cancertrials;
import java.util.Calendar;
import java.util.GregorianCalendar;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DataBaseHelper extends SQLiteOpenHelper{
public DataBaseHelper(Context context, String name) {
super(context, name, null, 1);
// TODO Auto-generated constructor stub
}
@Override
public void onCreate(SQLiteDatabase db) {
System.out.println("the database in onCreate: "+db);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
@Override
public void onOpen(SQLiteDatabase db) {
System.out.println("the database: "+db);
this.db=db;
super.onOpen(db);
}
public void insertRecordBean(RecordBean recordbean){
ContentValues content=new ContentValues();
content.put("TrialPhase", AdvanceSearchTab2.phaseOptions.toString());
content.put("TrialStatus", AdvanceSearchTab2.typeOptions.toString());
content.put("StudyType", AdvanceSearchTab2.statusOptions.toString());
content.put("ContactType", AdvanceSearchTab2.contactSpinner.toString());
content.put("MileRange", AdvanceSearchTab2.rangeSpinner.toString());
content.put("Location", AdvanceSearchTab2.locationSpinner.toString());
db.insert("tblClinicalTrial", null, content);
}
/*public void insertRecordResult(RecordBean recordbean){
ContentValues content1=new ContentValues();
content1.put("NCTID", recordbean.getNctId());
content1.put("Title", recordbean.getTitle());
content1.put("TrialPhase", recordbean.getTrialPhase());
content1.put("TrialStaus", recordbean.getTrialStatus());
content1.put("Summary", recordbean.getSummary());
content1.put("Conditions", recordbean.getConditions());
content1.put("Interventions", recordbean.getIntervention());
content1.put("Description", recordbean.getDescription());
content1.put("SponserName", recordbean.getSponsor());
content1.put("Inclusion", recordbean.getInclusionCriteria());
content1.put("Exclusion", recordbean.getExclusionCriteria());
content1.put("StudyPop", recordbean.getStudyPop());
content1.put("MinAge", recordbean.getMinimumAge());
content1.put("MaxAge", recordbean.getMaximumAge());
content1.put("Gender", recordbean.getGender());
content1.put("Hvolunteer", recordbean.getHealthyVolunteers());
content1.put("EnrollmentType", recordbean.getEnrollment());
content1.put("EnrollmentNum", recordbean.getEnrollment());
content1.put("VerifiedOn", recordbean.getVerifiedOn());
db.insert("tblResultItem", null, content1);
}*/
public void insertRecordBookmark(RecordBean recordbean){
ContentValues content2=new ContentValues();
content2.put("NCTID", recordbean.getNctId());
content2.put("Title", recordbean.getTitle());
content2.put("TrialPhase", recordbean.getTrialPhase());
content2.put("TrialStatus", recordbean.getTrialStatus());
content2.put("Summary", recordbean.getSummary());
content2.put("Conditions", recordbean.getConditions());
content2.put("Interventions", recordbean.getIntervention());
content2.put("Description", recordbean.getDescription());
content2.put("SponserName", recordbean.getSponsor());
content2.put("Inclusion", recordbean.getInclusionCriteria());
content2.put("Exclusion", recordbean.getExclusionCriteria());
content2.put("StudyPop", recordbean.getStudyPop());
content2.put("MinAge", recordbean.getMinimumAge());
content2.put("MaxAge", recordbean.getMaximumAge());
content2.put("Gender", recordbean.getGender());
content2.put("Hvolunteer", recordbean.getHealthyVolunteers());
content2.put("EnrollmentType", recordbean.getEnrollment());
content2.put("EnrollmentNum", recordbean.getEnrollment());
content2.put("VerifiedOn", recordbean.getVerifiedOn());
content2.put("UpdatedOn", recordbean.getUpdatedOn());
content2.put("LocationName", recordbean.getLocationName());
content2.put("LocationStatus", recordbean.getLocationStatus());
content2.put("City", recordbean.getCity());
content2.put("State", recordbean.getState());
content2.put("Country", recordbean.getCountry());
content2.put("Distance", recordbean.getLocationDist());
content2.put("Long", recordbean.getLongitude());
content2.put("lat", recordbean.getLatitude());
content2.put("Url", recordbean.getSourceUrl());
content2.put("Location_id", recordbean.getLocationId());
content2.put("Zip_code", recordbean.getZip());
db.insert("tblBookMarkItem", null, content2);
}
public Cursor getBookMarks(){
String[] columns={"_id","Title","Gender","TrialPhase","Zip_code","Location_id","NCTID"};
return db.query("tblBookMarkItem", columns, null, null, null, null, null);
}
public Cursor getRecent(){
String[] columns={"SearchString","ProfileDate","_id","years","Gender","TrialPhase","StudyType","TrialStatus","ContactType","MileRange","LocationZip","UrlParameter"};
return db.query("tblProfile", columns, null, null, null, null, null);
}
public void insertRecordProfile(String search,String url){
ContentValues content4=new ContentValues();
GregorianCalendar c=new GregorianCalendar();
content4.put("ProfileDate",c.get(GregorianCalendar.DATE)+"/"+(c.get(GregorianCalendar.MONTH)+1)+"/"+ c.get(GregorianCalendar.YEAR));
// content4.put("years", age);
//content3.put("ProfileType", AdvanceSearchTab2.typeOptions.toString());
//content4.put("months", AdvanceSearchTab1.ageEdit.getText().toString());
content4.put("SearchString", search);
// content4.put("Gender", gender);
// content4.put("TrialPhase", phase);
// content4.put("StudyType", study);
// content4.put("TrialStatus", status);
// content4.put("ContactType", contact);
// content4.put("MileRange", mile);
// content4.put("LocationZip", zip);
// //content4.put("searchString", AdvanceSearchTab1.edit_se.toString());
content4.put("UrlParameter", url);
db.insert("tblProfile", null, content4);
}
public void insertRecordMedical(RecordBean recordbean){
ContentValues content3=new ContentValues();
content3.put("years", AdvanceSearchTab1.ageEdit.toString());
content3.put("months", AdvanceSearchTab1.ageEdit.toString());
content3.put("searchString", AdvanceSearchTab1.edit_se.toString());
content3.put("Gender", AdvanceSearchTab1.hubSpinner.toString());
db.insert("tblMedicalProfile", null, content3);
}
public void deleteRecord(int id){
//_id=1;
db.delete("tblBookMarkItem", "_id="+id, null);
}
public void deleteRecent(int id){
//_id=1;
db.delete("tblProfile", "_id="+id, null);
}
private SQLiteDatabase db;
}
當我在ListAdapter中顯示它時，它顯示正常。只要我殺了我的應用程序。我的更改不會持續。爲什麼是這樣？
顯示如何創建數據庫的代碼。 – dhaag23 2010-11-19 03:58:12
已更新爲顯示所有代碼 – 2010-11-19 04:00:03
您的'public void onCreate（SQLiteDatabase db）'函數是完全空的。看看你是如何在數據庫中實際創建表格會很有趣...... – Nailuj 2010-11-19 12:40:55