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Сайн уу? Энэ source code нь J2ME – г ямар нэг сервертэй холбох жишээ юм. Та на хэрэвээ Java дээр юм хийдэг бол http://www.java-tips.org ер нь дажгүй сайт байна лээ шүү…

import java.io.*;
import java.util.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;

public class testMySQL extends MIDlet implements CommandListener {
private String username;
private String url =
“http://localhost:8080/servlets-examples/servlet/getConnection”;

private Display display;
private Command exit = new Command(“EXIT”, Command.EXIT, 1);;
private Command connect = new Command(“Connect”, Command.SCREEN, 1);
private TextField tb;
private Form menu;
private TextField tb1;
private TextField tb2;
DB db;

public testMySQL() throws Exception {
display = Display.getDisplay(this);

}

public void startApp() {
displayMenu();
}

public void displayMenu() {
menu = new Form(“Connect”);

tb = new TextField(“Please input database: “,”",30,
TextField.ANY );

tb1 = new TextField(“Please input username: “,”",30,
TextField.ANY);

tb2 = new TextField(“Please input password: “,”",30,
TextField.PASSWORD);

menu.append(tb);
menu.append(tb1);
menu.append(tb2);
menu.addCommand(exit);
menu.addCommand(connect);
menu.setCommandListener(this);
display.setCurrent(menu);
}

public void pauseApp() {}

public void destroyApp(boolean unconditional) {}

public void commandAction(Command command, Displayable screen) {
if (command == exit) {
destroyApp(false);
notifyDestroyed();
} else if (command == connect) {
db = new DB(this);
db.start();
db.connectDb(tb.getString(),tb1.getString(),tb2.getString());
}
}

public class DB implements Runnable {
testMySQL midlet;
private Display display;
String db;
String user;
String pwd;
public DB(testMySQL midlet) {
this.midlet = midlet;
display = Display.getDisplay(midlet);
}

public void start() {
Thread t = new Thread(this);
t.start();
}

public void run() {
StringBuffer sb = new StringBuffer();
try {
HttpConnection c = (HttpConnection) Connector.open(url);
c.setRequestProperty(
“User-Agent”,”Profile/MIDP-1.0, Configuration/CLDC-1.0″);
c.setRequestProperty(“Content-Language”,”en-US”);
c.setRequestMethod(HttpConnection.POST);

DataOutputStream os =
(DataOutputStream)c.openDataOutputStream();

os.writeUTF(db.trim());
os.writeUTF(user.trim());
os.writeUTF(pwd.trim());
os.flush();
os.close();

// Get the response from the servlet page.
DataInputStream is =(DataInputStream)c.openDataInputStream();
//is = c.openInputStream();
int ch;
sb = new StringBuffer();
while ((ch = is.read()) != -1) {
sb.append((char)ch);
}
showAlert(sb.toString());
is.close();
c.close();
} catch (Exception e) {
showAlert(e.getMessage());
}
}
/* This method takes input from user like db,user and pwd and pass
to servlet */
public void connectDb(String db,String user,String pwd) {
this.db = db;
this.user = user;
this.pwd = pwd;
}

/* Display Error On screen*/
private void showAlert(String err) {
Alert a = new Alert(“”);
a.setString(err);
a.setTimeout(Alert.FOREVER);
display.setCurrent(a);
}

};
}
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;

public class getConnection extends HttpServlet {

public void init() {
}

public void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {

DataInputStream in = new DataInputStream(
(InputStream)request.getInputStream());

String db = in.readUTF();
String user = in.readUTF();
String pwd = in.readUTF();

String message =”jdbc:mysql://localhost:3306/”+db+”,”+user+”,”+pwd;
try {

connect(db.toLowerCase().trim(),user.toLowerCase().trim(),
pwd.toLowerCase().trim());

message += “100 ok”;

} catch (Throwable t) {
message += “200 ” + t.toString();
}
response.setContentType(“text/plain”);
response.setContentLength(message.length());
PrintWriter out = response.getWriter();
out.println(message);
in.close();
out.close();
out.flush();
}

public void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {

doPost(request,response);
}

/* This method connects to MYSQL database*/
private void connect(String db, String user,String pwd)
throws Exception {

// Establish a JDBC connection to the MYSQL database server.
//Class.forName(“org.gjt.mm.mysql.Driver”);
Class.forName(“com.mysql.jdbc.Driver”).newInstance();
Connection conn = DriverManager.getConnection(
“jdbc:mysql://localhost:3306/”+db,user,pwd);

// Establish a JDBC connection to the Oracle database server.
//DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
//Connection conn = DriverManager.getConnection(
// “jdbc:oracle:thin:@localhost:1521:”+db,user,pwd);

// Establish a JDBC connection to the SQL database server.
//Class.forName(“net.sourceforge.jtds.jdbc.Driver”);
//Connection conn = DriverManager.getConnection(
// “jdbc:jtds:sqlserver://localhost:1433/”+db,user,pwd);
}
}

okla

j#- java 2 holbono gej yu gej bgaan? oilgomjtoi asuuda…

hehe tiim bna uu naadah chini 2r kursiin zurag sh dee harin odoo 4 togsoj bna aa zugeer udahgui oyutan bhaa boliloo. kkkk

Манайхан дандаа монгол хичээл гэх юм бараг байдаггүй ш дээ. Гэхдээ бас орч үгүй л байх л даа би яахав монгол юм хайя за. яг одоо байдаггүй ээ

Жишээ байхгүй өөрөө хийх гээд үз л дээ. Бэлэн юм хайж байгаа юм уу хэхэ. Тэгээд майл – ээ уншихгүй байгаа хүнд майл-ээр сануулга өгөөд ашиг байна уу?