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[英]SQLITE_ERROR SQL error or missing database (near “(”: syntax error)
[英]SQLITE_ERROR SQL error or missing database (near “VALUES”: syntax error)
我有以下代碼,它給了我這個錯誤。 我需要向數據庫顯示通過TCP連接傳輸的值。 救命? 當我注釋Class.forName(“ org.sqlite.JDBC”)和cubexiune.setAutoCommit(false);之間的行時 而且從String到cubexiune.commit()的IF都可以正常工作,看來客戶端和服務器之間的連接還可以。
這是在服務器類中運行的方法:
public void run() {
while(true)
{
try
{
soc=server.accept();
System.out.println("OK!");
ObjectInputStream ois=new ObjectInputStream(soc.getInputStream());
Class.forName("org.sqlite.JDBC");
Connection conexiune=DriverManager.getConnection("jdbc:sqlite:BazaDeDate.db");
System.out.println("Conexiunea la baza de date s-a realizat cu succes!");
Statement comanda=(Statement) conexiune.createStatement();
conexiune.setAutoCommit(false);
Object obj=ois.readObject();
if(obj instanceof AvionPasageri)
{
AvionPasageri ap=(AvionPasageri)obj;
System.out.println(ap.toString());
String s="";
for(String sir : ap.getCnpPasageri())
{
s+=sir;
}
((java.sql.Statement) comanda).executeUpdate("INSERT INTO AvionPasageri(serie,tonaj,marca,capacitate,cnp VALUES(' "
+ap.getSerie()+"', '"+ap.getTonaj()+"', '"+ap.getMarca()+"', '"+ap.getCapacitate()
+"', '"+s+"')");
System.out.println("Inserat!");
conexiune.commit();
}
else if(obj instanceof AvionCargo)
{
AvionCargo ac=(AvionCargo)obj;
System.out.println(ac.toString());
String s="";
for(String sir: ac.getSerieMarfuri())
{
s+=sir;
}
((java.sql.Statement) comanda).executeUpdate("INSERT INTO AvionPasageri(serie,tonaj,marca,capacitate,serii VALUES('"
+ac.getSerie()+"', '"+ac.getTonaj()+"', '"+ac.getMarca()+"', '"+ac.getCapacitate()
+"', '"+s+"')");
System.out.println("Inserat!");
conexiune.commit();
}
conexiune.close();
soc.close();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
我在這里也有數據庫的類:
public class CreareBazaDeDate
{
public static void main(String[] args) throws ClassNotFoundException, SQLException
{
Class.forName("org.sqlite.JDBC");
Connection conexiune=DriverManager.getConnection("jdbc:sqlite:BazaDeDate.db");
Statement comanda=(Statement) conexiune.createStatement();
conexiune.setAutoCommit(false);
((java.sql.Statement) comanda).executeUpdate("CREATE TABLE AvionPasageri( serie string, tonaj float, marca string, capacitate float, cnp string)");
((java.sql.Statement) comanda).executeUpdate("CREATE TABLE AvionCargo( serie string, tonaj float, marca string, capacitate float, marfa string)");
conexiune.commit();
conexiune.close();
}
}
如果有幫助,那么這是他在Run()之前的Server類的第一部分:
public class Server implements Runnable
{
public ServerSocket server;
public Socket soc;
public static void main(String[] args)
{
Thread t=new Thread(new Server());
t.start();
}
public Server()
{
try
{
server=new ServerSocket(5200);
}
catch(IOException e)
{
e.printStackTrace();
}
}
您能幫我找出問題所在嗎?
您需要在結束時右括號
INSERT INTO AvionPasageri(serie,tonaj,marca,capacitate,cnp VALUES
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