嗨，我是 Flash builder 的新手，对编程非常生疏，我正在尝试连接到嵌入式 XML 文件并能够使用 SQLite 读取它，以便创建搜索栏过滤信息等
好吧，这是我的 DAO
package model
{
import flash.data.SQLConnection;
import flash.data.SQLStatement;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
import model.Loans;
import mx.collections.ArrayCollection;
public class LoansDAO
{
private var _sqlConnection:SQLConnection;
public function get sqlConnection():SQLConnection
{
if (_sqlConnection)
return _sqlConnection;
openDatabase(File.documentsDirectory.resolvePath("EZDemo.db"));
return _sqlConnection;
}
public function findByName(searchKey:String):ArrayCollection
{
var sql:String = "SELECT * FROM loans WHERE loan || ' ' || companyName LIKE '%"+searchKey+"%' ORDER BY loan";
var stmt:SQLStatement = new SQLStatement();
stmt.sqlConnection = sqlConnection;
stmt.text = sql;
stmt.execute();
var result:Array = stmt.getResult().data;
if (result)
{
var list:ArrayCollection = new ArrayCollection();
for (var i:int=0; i<result.length; i++)
{
list.addItem(processRow(result[i]));
}
return list;
}
else
{
return null;
}
}
public function create(loans:Loans):void
{
trace(loans.loan);
var sql:String =
"INSERT INTO loans (accountManager, loanManagerEMail, status, loan, companyName, dateCreated, etShipping, rfmApproval, approvalBU, approvalRFM, placementTerm, listPrice, isa, vSapOrderNum, isr, dueDate, shipDate, carrier, tracking) " +
"VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
var stmt:SQLStatement = new SQLStatement();
stmt.sqlConnection = sqlConnection;
stmt.text = sql;
stmt.parameters[0] = loans.loan;
stmt.parameters[1] = loans.companyName;
stmt.parameters[2] = loans.dateCreated;
stmt.parameters[3] = loans.etShipping;
stmt.parameters[4] = loans.rfmApproval;
stmt.parameters[5] = loans.approvalBU;
stmt.parameters[6] = loans.approvalRFM;
stmt.parameters[7] = loans.vSapOrderNum;
stmt.parameters[8] = loans.placementTerm;
stmt.parameters[9] = loans.status;
stmt.parameters[11] = loans.shipDate;
stmt.parameters[12] = loans.carrier;
stmt.parameters[13] = loans.tracking;
stmt.parameters[14] = loans.listPrice;
stmt.parameters[15] = loans.dueDate;
stmt.parameters[16] = loans.loanManagerEMail;
stmt.parameters[17] = loans.accountManager;
stmt.parameters[18] = loans.isa;
stmt.parameters[19] = loans.isr;
stmt.execute();
loans.loaded = true;
}
protected function processRow(o:Object):Loans
{
var loans:Loans = new Loans();
loans.loan = o.loan == null ? "" : o.loan;
loans.companyName = o.companyName == null ? "" : o.companyName;
loans.dateCreated = o.dateCreated == null ? "" : o.dateCreated;
loans.etShipping = o.etShipping == null ? "" : o.etShipping;
loans.rfmApproval = o.rfmApproval == null ? "" : o.rfmApproval;
loans.approvalBU = o.approvalBU == null ? "" : o.approvalBU;
loans.approvalRFM = o.approvalRFM == null ? "" : o.approvalRFM;
loans.vSapOrderNum = o.vSapOrderNum == null ? "" : o.vSapOrderNum;
loans.placementTerm = o.placementTerm == null ? "" : o.placementTerm;
loans.status = o.status == null ? "" : o.status;
loans.shipDate = o.shipDate == null ? "" : o.shipDate;
loans.carrier = o.carrier == null ? "" : o.carrier;
loans.tracking = o.tracking == null ? "" : o.tracking;
loans.listPrice= o.listPrice == null ? "" : o.listPrice;
loans.dueDate = o.dueDate == null ? "" : o.dueDate;
loans.loanManagerEMail = o.loanManagerEMail == null ? "" : o.loanManagerEMail;
loans.accountManager = o.accountManager == null ? "" : o.accountManager;
loans.isa = o.isa == null ? "" : o.isa;
loans.isr = o.isr == null ? "" : o.isr;
loans.loaded = true;
return loans;
}
public function openDatabase(file:File):void
{
var newDB:Boolean = true;
if (file.exists)
newDB = false;
_sqlConnection = new SQLConnection();
_sqlConnection.open(file);
if (newDB)
{
createDatabase();
populateDatabase();
}
}
protected function createDatabase():void
{
var sql:String =
"CREATE TABLE IF NOT EXISTS loans ( "+
"loan INTEGER, " +
"companyName VARCHAR(30), " +
"dateCreated VARCHAR(20), " +
"etShipping VARCHAR(20), " +
"rfmApproval VARCHAR(20), " +
"approvalBU VARCHAR(3), " +
"approvalRFM VARCHAR(3), " +
"vSapOrderNum VARCHAR(15), " +
"placementTerm VARCHAR(25), " +
"status VARCHAR(21), " +
"shipDate VARCHAR(20), " +
"carrier VARCHAR(20), " +
"tracking VARCHAR(25), " +
"listPrice VARCHAR(25), " +
"dueDate VARCHAR(30), " +
"loanManagerEMail VARCHAR(30), " +
"accountManager VARCHAR(40), " +
"isa VARCHAR(40), " +
"isr VARCHAR(40))";
var stmt:SQLStatement = new SQLStatement();
stmt.sqlConnection = sqlConnection;
stmt.text = sql;
stmt.execute();
}
protected function populateDatabase():void
{
var file:File = File.applicationDirectory.resolvePath("assets/loans.xml");
var stream:FileStream = new FileStream();
stream.open(file, FileMode.READ);
var xml:XML = XML(stream.readUTFBytes(stream.bytesAvailable));
stream.close();
for each (var emp:XML in xml.loans)
{
var loans:Loans = new Loans();
loans.loan = emp.loan;
loans.companyName = emp.companyName;
loans.dateCreated = emp.dateCreated;
loans.etShipping = emp.etShipping;
loans.rfmApproval = emp.rfmApproval;
loans.approvalBU = emp.approvalBU;
loans.approvalRFM = emp.approvalRFM;
loans.vSapOrderNum = emp.vSapOrderNum;
loans.placementTerm = emp.placementTerm;
loans.status = emp.status;
loans.shipDate = emp.shipDate;
loans.carrier = emp.carrier;
loans.tracking = emp.tracking;
loans.listPrice = emp.listPrice;
loans.dueDate = emp.dueDate;
loans.loanManagerEMail = emp.loanManagerEMail;
loans.accountManager = emp.accountManager;
loans.isa = emp.isa;
loans.isr = emp.isr;
create(loans);
}
}
}
}
不知道发生了什么，这没有返回任何东西
如果您需要其他东西，请告诉我，并提前感谢我能得到的任何帮助