我有一个名为user www-data;
worker_processes auto;
pid /run/nginx.pid;
events {
worker_connections 2000;
multi_accept on;
use epoll;
}
http {
upstream backend {
server localhost:8080 max_fails=3 fail_timeout=120s;
}
location /path {
proxy_pass http://backend;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header X-Forwarded-Host $server_name;
}
:
:
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
proxy_connect_timeout 1000;
proxy_send_timeout 1000;
proxy_read_timeout 1000;
send_timeout 1000;
:
:
}
的表格,以及表格如何显示
Rooms
在下面的代码中,我可以使用数据库中的房间号填充组合框。但我想要做的是,当我选择一个房间号码时,该房间号码的可用座位必须更新。
例如,当我选择
时RoomNumber 4,可用座位4
RoomNumber 3,可用座位2
我怎样才能实现这个目标?
查询
//查询以获取房间号码到组合框
CREATE TABLE Rooms
(
id INT AUTO_INCREMENT,
RoomNumber VARCHAR(32) NOT NULL,
AvailableSeats INT NOT NULL,
PRIMARY KEY (id)
)
//查询以获取每个房间号码的相应可用座位
public void FindRoom() {
String query = "Select * from Rooms";
try {
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while(rs.next()) {
String getRoomNumber = rs.getString("RoomNumber");
FindRoom.addItem(getRoomNumber);
}
} catch (Exception ex) {
JOptionPane.showMessageDialog(null, ex);
}
}