我过去三天一直在尝试，但我无法解决这个问题;编辑表格和查询。
我一直在使用perstlite来存储数据;我已经为所需的类创建了表和查询;
现在我一直在听移动设备中的联系人，我只能在该课程中获取数据，但我无法获得主要课程中的信息或项目中的任何地方，尽管我已经打电话给班级。有人可以帮我解决这个问题吗？
这是我的程序
package com.Wblower.listeners;
import java.util.Hashtable;
import javax.microedition.pim.Contact;
import javax.microedition.pim.PIMItem;
import javax.microedition.pim.PIMList;
import com.Wblower.db.ContactlistdatabaseQueries;
import com.Wblower.db.Contactlistdatabasetable;
import com.Wblower.db.DataBaseConnectivity;
import com.Wblower.util.DateTimeUtil;
import net.rim.blackberry.api.pdap.BlackBerryContact;
import net.rim.blackberry.api.pdap.BlackBerryContactList;
import net.rim.blackberry.api.pdap.PIMListListener;
public class ContactListener implements PIMListListener {
BlackBerryContactList contactList;
DataBaseConnectivity dbconnectVity = new DataBaseConnectivity();
public void itemAdded(PIMItem arg0) {
System.out.println("Item Added ==");
String firstname = "none";
String lastname = "none";
String mobile = "none";
String mobile1 = "none";
String mobile2 = "none";
String email = "none";
String email1 = "none";
String web = "none";
String company = "none";
String address = "none";
String address1 = "none";
String name[] = { "" };
String timeStamp = "none";
PIMList contacts = arg0.getPIMList();
Contact contact = (Contact) arg0;
if (contacts.isSupportedField(Contact.NAME)) {
try {
if (contact.countValues(Contact.NAME) > 0)
name = contact.getStringArray(Contact.NAME, 0);
if (name[Contact.NAME_GIVEN] != null)
firstname = name[Contact.NAME_GIVEN];
System.out.println("FirstName= " + firstname);
if (name[Contact.NAME_FAMILY] != null)
lastname = name[Contact.NAME_FAMILY];
System.out.println("LastName= " + lastname);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.EMAIL)) {
try {
if (contact.countValues(Contact.EMAIL) > 0)
email = contact.getString(Contact.EMAIL, 0);
System.out.println("Email " + email);
if (contact.countValues(Contact.EMAIL) > 1)
email1 = contact.getString(Contact.EMAIL, 1);
System.out.println("Email " + email1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.ORG)) {
try {
if (contact.countValues(Contact.ORG) > 0)
company = contact.getString(Contact.ORG, 0);
System.out.println("Company " + company);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.URL)) {
try {
if (contact.countValues(Contact.URL) > 0)
web = contact.getString(Contact.URL, 0);
System.out.println("web " + web);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.TEL)) {
try {
if (contact.countValues(Contact.TEL) > 0)
mobile = contact.getString(Contact.TEL, 0);
System.out.println("Phone " + mobile);
if (contact.countValues(Contact.TEL) > 1)
mobile1 = contact.getString(Contact.TEL, 1);
System.out.println("Phone " + mobile1);
if (contact.countValues(Contact.TEL) > 2)
mobile2 = contact.getString(Contact.TEL, 2);
System.out.println("Phone " + mobile2);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
if (contacts.isSupportedField(Contact.ADDR)) {
try {
address = "";
String[] addressarr = contact.getStringArray(
BlackBerryContact.ADDR, 0);
for (int i = 0; i < addressarr.length; i++) {
if (addressarr[i] != null) {
address = address + " " + addressarr[i];
}
}
System.out.println("Address==" + address);
address1 = "";
String[] addressar = contact.getStringArray(
BlackBerryContact.ADDR, 1);
for (int i = 0; i < addressar.length; i++) {
if (addressar[i] != null) {
address1 = address1 + " " + addressar[i];
}
}
System.out.println("Address==" + address1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
timeStamp = DateTimeUtil.timestamp();
try {
System.out.println("Entering into the db");
dbconnectVity.setDataBase();
Contactlistdatabasetable Contactlist;
Contactlist = new Contactlistdatabasetable(
"Contacts", "Add", firstname, lastname, mobile,
mobile1, mobile2, email, email1, web, company,
address, address1, timeStamp);
ContactlistdatabaseQueries.insertSingleContactlist(Contactlist);
ContactlistdatabaseQueries.selectWholeContactlist();
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
return;
}
}
}
public void itemRemoved(PIMItem arg0) {
System.out.println("Item Removed ==");
String firstname = "none";
String lastname = "none";
String mobile = "none";
String mobile1 = "none";
String mobile2 = "none";
String email = "none";
String email1 = "none";
String web = "none";
String company = "none";
String address = "none";
String address1 = "none";
String name[] = { "" };
String timeStamp = "none";
PIMList contacts = arg0.getPIMList();
Contact contact = (Contact) arg0;
if (contacts.isSupportedField(Contact.NAME)) {
try {
if (contact.countValues(Contact.NAME) > 0)
name = contact.getStringArray(Contact.NAME, 0);
if (name[Contact.NAME_GIVEN] != null)
firstname = name[Contact.NAME_GIVEN];
System.out.println("FirstName= " + firstname);
if (name[Contact.NAME_FAMILY] != null)
lastname = name[Contact.NAME_FAMILY];
System.out.println("LastName= " + lastname);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.EMAIL)) {
try {
if (contact.countValues(Contact.EMAIL) > 0)
email = contact.getString(Contact.EMAIL, 0);
System.out.println("Email " + email);
if (contact.countValues(Contact.EMAIL) > 1)
email1 = contact.getString(Contact.EMAIL, 1);
System.out.println("Email " + email1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.ORG)) {
try {
if (contact.countValues(Contact.ORG) > 0)
company = contact.getString(Contact.ORG, 0);
System.out.println("Company " + company);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.URL)) {
try {
if (contact.countValues(Contact.URL) > 0)
web = contact.getString(Contact.URL, 0);
System.out.println("web " + web);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.TEL)) {
try {
if (contact.countValues(Contact.TEL) > 0)
mobile = contact.getString(Contact.TEL, 0);
System.out.println("Phone " + mobile);
if (contact.countValues(Contact.TEL) > 1)
mobile1 = contact.getString(Contact.TEL, 1);
System.out.println("Phone " + mobile1);
if (contact.countValues(Contact.TEL) > 2)
mobile2 = contact.getString(Contact.TEL, 2);
System.out.println("Phone " + mobile2);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
if (contacts.isSupportedField(Contact.ADDR)) {
try {
address = "";
String[] addressarr = contact.getStringArray(
BlackBerryContact.ADDR, 0);
for (int i = 0; i < addressarr.length; i++) {
if (addressarr[i] != null) {
address = address + " " + addressarr[i];
}
}
System.out.println("Address==" + address);
address1 = "";
String[] addressar = contact.getStringArray(
BlackBerryContact.ADDR, 1);
for (int i = 0; i < addressar.length; i++) {
if (addressar[i] != null) {
address1 = address1 + " " + addressar[i];
}
}
System.out.println("Address==" + address1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
timeStamp = DateTimeUtil.timestamp();
try {
System.out.println("Entering into the db");
dbconnectVity.setDataBase();
Contactlistdatabasetable Contactlist;
Contactlist = new Contactlistdatabasetable(
"Contacts", "Delete", firstname, lastname, mobile,
mobile1, mobile2, email, email1, web, company,
address, address1, timeStamp);
ContactlistdatabaseQueries.insertSingleContactlist(Contactlist);
ContactlistdatabaseQueries.selectWholeContactlist();
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
return;
}
}
}
public void itemUpdated(PIMItem arg0, PIMItem arg1) {
System.out.println("Item Updated ==");
String firstname = "none";
String lastname = "none";
String mobile = "none";
String mobile1 = "none";
String mobile2 = "none";
String email = "none";
String email1 = "none";
String web = "none";
String company = "none";
String address = "none";
String address1 = "none";
String name[] = { "" };
String timeStamp = "none";
PIMList contacts = arg1.getPIMList();
Contact contact = (Contact) arg1;
if (contacts.isSupportedField(Contact.NAME)) {
try {
if (contact.countValues(Contact.NAME) > 0)
name = contact.getStringArray(Contact.NAME, 0);
if (name[Contact.NAME_GIVEN] != null)
firstname = name[Contact.NAME_GIVEN];
System.out.println("FirstName= " + firstname);
if (name[Contact.NAME_FAMILY] != null)
lastname = name[Contact.NAME_FAMILY];
System.out.println("LastName= " + lastname);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.EMAIL)) {
try {
if (contact.countValues(Contact.EMAIL) > 0)
email = contact.getString(Contact.EMAIL, 0);
System.out.println("Email " + email);
if (contact.countValues(Contact.EMAIL) > 1)
email1 = contact.getString(Contact.EMAIL, 1);
System.out.println("Email " + email1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.ORG)) {
try {
if (contact.countValues(Contact.ORG) > 0)
company = contact.getString(Contact.ORG, 0);
System.out.println("Company " + company);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.URL)) {
try {
if (contact.countValues(Contact.URL) > 0)
web = contact.getString(Contact.URL, 0);
System.out.println("web " + web);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
}
if (contacts.isSupportedField(Contact.TEL)) {
try {
if (contact.countValues(Contact.TEL) > 0)
mobile = contact.getString(Contact.TEL, 0);
System.out.println("Phone " + mobile);
if (contact.countValues(Contact.TEL) > 1)
mobile1 = contact.getString(Contact.TEL, 1);
System.out.println("Phone " + mobile1);
if (contact.countValues(Contact.TEL) > 2)
mobile2 = contact.getString(Contact.TEL, 2);
System.out.println("Phone " + mobile2);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
if (contacts.isSupportedField(Contact.ADDR)) {
try {
address = "";
String[] addressarr = contact.getStringArray(
BlackBerryContact.ADDR, 0);
for (int i = 0; i < addressarr.length; i++) {
if (addressarr[i] != null) {
address = address + " " + addressarr[i];
}
}
System.out.println("Address==" + address);
address1 = "";
String[] addressar = contact.getStringArray(
BlackBerryContact.ADDR, 1);
for (int i = 0; i < addressar.length; i++) {
if (addressar[i] != null) {
address1 = address1 + " " + addressar[i];
}
}
System.out.println("Address==" + address1);
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
timeStamp = DateTimeUtil.timestamp();
try {
System.out.println("Entering into the db");
dbconnectVity.setDataBase();
Contactlistdatabasetable Contactlist;
Contactlist = new Contactlistdatabasetable(
"Contacts", "Update", firstname, lastname, mobile,
mobile1, mobile2, email, email1, web, company,
address, address1, timeStamp);
ContactlistdatabaseQueries.insertSingleContactlist(Contactlist);
ContactlistdatabaseQueries.selectWholeContactlist();
} catch (Exception e) {
System.out.println("Exception::" + e.getMessage());
}
return;
}
}
}
}
我希望你理解我的问题
当我选择“ContactlistdatabaseQueries.selectWholeContactlist（）;”时这个方法在任何主类我都无法获取数据库中的数据，当我得到的响应是0.但我需要得到存储数据的值，即插入的行数。
答案 0 :(得分：0)
我已经解决了我的问题它只是改变数据库，我在问题中使用了perstlite但是对于上述问题，持久性将是更好的