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Database.java
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124 lines (102 loc) · 3.36 KB
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package socket;
import javax.swing.JOptionPane;
public class Database {
public String filePath;
public Database(String filePath){
this.filePath = filePath;
}
public boolean userExists(String username){
String a=null;
boolean check=false;
try{
Accessdb db=new Accessdb();
a=db.Accessdb();
String[] user,nick=null;
user=a.split("/");
int n=user.length;
int j=0;
for (j=0;j<n;j++){
nick=user[j].split("-");
if (username.equalsIgnoreCase(nick[0])){
check=true;
JOptionPane.showMessageDialog(null, "Tài khoản dã tồn tại");
break;
}
}
if (check) {
return true;
} else {
return false;
}
}
catch(Exception ex){
System.out.println("Database exception : userExists()");
return false;
}
}
public boolean checkLogin(String username, String password){
String a=null,b=null;
Boolean check=false;
try {
Accessdb db=new Accessdb();
a=db.Accessdb();
System.out.println("Database bao gồm \n");
System.out.println(a);
System.out.println("Đăng nhập thành công");
String[] user,nick=null;
user=a.split("/");
int n=user.length;
int j=0;
for (j=0;j<n;j++){
nick=user[j].split("-");
if (username.equalsIgnoreCase(nick[0])&&password.equalsIgnoreCase(nick[1])){
check=true;
break;
}
}
if (check) {
return true;
}
else {
return false;
}
} catch (Exception e) {
System.out.println("Database exception : userExists()");
return false;
}
}
public void addUser(String username, String password){
String a=null;
boolean check=false;
try {
Accessdb db=new Accessdb();
a=db.Accessdb();
System.out.println("Database bao gồm \n");
System.out.println(a);
String[] user,nick=null;
user=a.split("/");
int n=user.length;
int j=0;
for (j=0;j<n;j++){
nick=user[j].split("-");
if (username.equalsIgnoreCase(nick[0])){
check=true;
JOptionPane.showMessageDialog(null, "userExist");
break;
}
}
if (check) {
}
else {
writedb wdb = new writedb();
String code="Insert into info.login values ('"+username+"','"+password+"')";
wdb.writedb(code);
System.out.println(" Thêm vào DB thành công");
System.out.println("Bảng Database \n");
System.out.println(a);
}
} catch (Exception e) {
System.out.println("Dang ki that bai");
}
}
}