1、swift socket编程怎么弄
swift代码：需要导入GCDAsyncSocket库文件，可去github下载
import UIKit
class ViewController:
UIViewController,
GCDAsyncSocketDelegate {
@IBOutlet var serveripInput:
UITextField!
@IBOutlet var msgInput:
UITextField!
@IBOutlet var conBtn:
UIButton!
@IBOutlet var sendBtn:
UIButton!
@IBOutlet var msgView:
UITextView!
let serverPort: UInt16 =
9050
var clientSocket:
GCDAsyncSocket!
var mainQueue =
dispatch_get_main_queue()
override func viewDidLoad() {
super.viewDidLoad()
}
//连接服务器按钮事件
@IBAction func conBtnClick(sender:
AnyObject) {
do {
clientSocket = GCDAsyncSocket()
clientSocket.delegate =
self
clientSocket.delegateQueue =
dispatch_get_global_queue(0,
0)
try
clientSocket.connectToHost(serveripInput.text!,
onPort: serverPort)
conBtn.backgroundColor =
UIColor.blueColor()
}
catch {
print("error")
conBtn.backgroundColor =
UIColor.redColor()
}
}
func socket(sock:
GCDAsyncSocket!, didConnectToHost host: String!, port:
UInt16) {
print("与服务器连接成功！")
clientSocket.readDataWithTimeout(-1, tag:
0)
}
func socketDidDisconnect(sock:
GCDAsyncSocket!, withError err: NSError!) {
print("与服务器断开连接")
}
func socket(sock:
GCDAsyncSocket!, didReadData data: NSData!, withTag tag:
Int) {
// 1
获取客户的发来的数据 ，把 NSData
转 NSString
let readClientDataString:
NSString? = NSString(data: data, encoding:
NSUTF8StringEncoding)
print(readClientDataString!)
// 2
主界面ui 显示数据
dispatch_async(mainQueue, {
let showStr:
NSMutableString = NSMutableString()
showStr.appendString(self.msgView.text)
showStr.appendString(readClientDataString!
as String)
showStr.appendString("\n")
self.msgView.text = showStr
as String
})
// 3.处理请求，返回数据给客户端 ok
let serviceStr:
NSMutableString = NSMutableString()
serviceStr.appendString("ok\n")
clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding), withTimeout: -1,
tag: 0)
// 4
每次读完数据后，都要调用一次监听数据的方法
clientSocket.readDataWithTimeout(-1, tag:
0)
}
//发送消息按钮事件
@IBAction func sendBtnClick(sender:
AnyObject) {
// 1.处理请求，返回数据给客户端 ok
let serviceStr:
NSMutableString = NSMutableString()
serviceStr.appendString(self.msgInput.text!)
serviceStr.appendString("\n")
clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding), withTimeout: -1,
tag: 0)
}
}
2、SWIFT L/C主要条款的域名号是什么
SWIFT MT700的域名一共有37个，从27开始，到72结束，主要有
45A货物描述
46A单据要求
47A附加条款
等等。
3、swift tcp的连接用什么库
使用SQLiteDatabase操作SQLite数据库 Android提供了一个名为SQLiteDatabase的类，该类封装了一些操作数据库的API，使用该类可以完成对数据进行添加(Create)、查询(Retrieve)、更新(Update)和删除(Delete)操作（这些操作简称为CRUD）。对SQLiteDa...
4、swift3.0 gcdasyncsocket 客户端怎么接收数据
swift代码：需要导入GCDAsyncSocket库文件，可去github下载
import UIKit
class ViewController:
UIViewController,
GCDAsyncSocketDelegate {
@IBOutlet var serveripInput:
UITextField!
@IBOutlet var msgInput:
UITextField!
@IBOutlet var conBtn:
UIButton!
@IBOutlet var sendBtn:
UIButton!
@IBOutlet var msgView:
UITextView!
let serverPort: UInt16 =
9050
var clientSocket:
GCDAsyncSocket!
var mainQueue =
dispatch_get_main_queue()
override func viewDidLoad() {
super.viewDidLoad()
}
//连接服务器按钮事件
@IBAction func conBtnClick(sender:
AnyObject) {
do {
clientSocket = GCDAsyncSocket()
clientSocket.delegate =
self
clientSocket.delegateQueue =
dispatch_get_global_queue(0,
0)
try
clientSocket.connectToHost(serveripInput.text!,
onPort: serverPort)
conBtn.backgroundColor =
UIColor.blueColor()
}
catch {
print("error")
conBtn.backgroundColor =
UIColor.redColor()
}
}
func socket(sock:
GCDAsyncSocket!, didConnectToHost host: String!, port:
UInt16) {
print("与服务器连接成功！")
clientSocket.readDataWithTimeout(-1, tag:
0)
}
func socketDidDisconnect(sock:
GCDAsyncSocket!, withError err: NSError!) {
print("与服务器断开连接")
}
func socket(sock:
GCDAsyncSocket!, didReadData data: NSData!, withTag tag:
Int) {
// 1
获取客户的发来的数据 ，把 NSData
转 NSString
let readClientDataString:
NSString? = NSString(data: data, encoding:
NSUTF8StringEncoding)
print(readClientDataString!)
// 2
主界面ui 显示数据
dispatch_async(mainQueue, {
let showStr:
NSMutableString = NSMutableString()
showStr.appendString(self.msgView.text)
showStr.appendString(readClientDataString!
as String)
showStr.appendString("\n")
self.msgView.text = showStr
as String
})
// 3.处理请求，返回数据给客户端 ok
let serviceStr:
NSMutableString = NSMutableString()
serviceStr.appendString("ok\n")
clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding), withTimeout: -1,
tag: 0)
// 4
每次读完数据后，都要调用一次监听数据的方法
clientSocket.readDataWithTimeout(-1, tag:
0)
}
//发送消息按钮事件
@IBAction func sendBtnClick(sender:
AnyObject) {
// 1.处理请求，返回数据给客户端 ok
let serviceStr:
NSMutableString = NSMutableString()
serviceStr.appendString(self.msgInput.text!)
serviceStr.appendString("\n")
clientSocket.writeData(serviceStr.dataUsingEncoding(NSUTF8StringEncoding), withTimeout: -1,
tag: 0)
}
}
5、swift socket.io怎么用
socket.io封装了websocket，同时包含了其它的连接方式，比如Ajax。原因在于不是所有的浏览器都支持websocket，通过socket.io的封装，你不用关心里面用了什么连接方式。你在任何浏览器里都可以使用socket.io来建立异步的连接。
6、ios8 swift CFSocket怎么使用
swiftsocket
https://github.com/xyyc/SwiftSocket
例子
https://github.com/xyyc/SwiftChatServer
https://github.com/xyyc/SwiftChatClient