zoukankan      html  css  js  c++  java
  • swift http请求返回json数据并解析

    1 AppDelegate.swift

    //
    //  AppDelegate.swift
    //  QQDemo
    //
    //  Created by 赵超 on 14-6-21.
    //  Copyright (c) 2014年 赵超. All rights reserved.
    //
    
    import UIKit
    
    @UIApplicationMain
    class AppDelegate: UIResponder, UIApplicationDelegate {
                                
        var window: UIWindow?
    
    
        func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
            self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
            // Override point for customization after application launch.
            self.window!.backgroundColor = UIColor.whiteColor()
            self.window!.makeKeyAndVisible()
            
            var root=RootViewController()
            self.window!.rootViewController=root
            
            
            
            return true
        }
    
        func applicationWillResignActive(application: UIApplication) {
            // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
            // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
        }
    
        func applicationDidEnterBackground(application: UIApplication) {
            // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
            // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
        }
    
        func applicationWillEnterForeground(application: UIApplication) {
            // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
        }
    
        func applicationDidBecomeActive(application: UIApplication) {
            // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
        }
    
        func applicationWillTerminate(application: UIApplication) {
            // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
        }
    
    
    }
    

    2.rootViewController.swift

    //
    //  RootViewController.swift
    //  QQDemo
    //
    //  Created by 赵超 on 14-6-21.
    //  Copyright (c) 2014年 赵超. All rights reserved.
    //
    
    import UIKit
    
    class RootViewController: UIViewController {
    
        var btn:UIButton?
        var text:UITextField?
        var lable:UILabel?
    
        override func viewDidLoad() {
            super.viewDidLoad()
            //TextField
            text=UITextField()
            text!.frame=CGRectMake(20,30,self.view.bounds.size.width-40,30)
            text!.placeholder="http://"
            text!.borderStyle = .RoundedRect
            
            //Button
            btn=UIButton()
            btn!.frame=CGRectMake(20, 80, 60, 30)
            btn!.setTitle("HTTP",forState:.Normal)
            btn!.addTarget(self,action:"onclick",forControlEvents:.TouchUpInside)
            btn!.backgroundColor=UIColor.redColor()
           
            //Lable
            lable=UILabel()
            lable!.frame=CGRectMake(0,120,self.view.bounds.size.width,self.view.bounds.size.height)
            lable!.backgroundColor=UIColor.grayColor()
            lable!.lineBreakMode = .ByWordWrapping;
            lable!.numberOfLines=0
            
            self.view.addSubview(self.btn)
            self.view.addSubview(lable)
            self.view.addSubview(text)
    
            // Do any additional setup after loading the view.
        }
        
        func connection(connection:NSURLConnection!,didReceiveData data:NSData!){
            var returnString:NSString?
            returnString=NSString(data:data,encoding:NSUTF8StringEncoding)
            println(returnString)
            let jsonData = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary
            var str="result:
    "+String(returnString!)
            
            for (key,value) in jsonData{
                str+="
     key-->(key)"+" value=(value) "
            }
            lable!.text=str
            
        }
        
        func onclick(){
            var url:String=text!.text
            if url==""  {
    //            let alert=UIAlertView()
    //            alert.title="Error"
    //            alert.message="please enter url!"
    //            alert.addButtonWithTitle("Ok")
    //            alert.show()
                var urlString:String?="http://192.168.1.104:8080/Attendace/JsonController/getJson"
                httpRequest(urlString!)
    
            }else{
                httpRequest(url)
            }
         
      
    
            
        }
        func httpRequest( urlString:String){
            var url:NSURL?
            var requrst:NSURLRequest?
            var conn:NSURLConnection?
            url=NSURL.URLWithString(urlString)
            requrst=NSURLRequest(URL:url)
            conn=NSURLConnection(request: requrst,delegate: self)
            println(conn)
            if(conn){
                println("http连接成功!")
            }else{
                println("http连接失败!")
            }
     
        }
    
        override func didReceiveMemoryWarning() {
            super.didReceiveMemoryWarning()
            // Dispose of any resources that can be recreated.
        }
        
    }
    


  • 相关阅读:
    SLA合规率是什么? SLA合规率实践分析
    如何借助Site24x7提高Azure VM的灵活性和效率?
    如何避免LLMNR / NBT-NS欺骗攻击?
    ITSM整治混乱秩序 | 看知名研究所如何解决帮助台管理
    如何使用Applications Manager轻松监控Nginx?
    vue中让input框自动聚焦
    pc端手机号填写与验证信息的样式
    vuex里面的this.$store.dispatch 和 this.$store.commit用法以及区别
    Vue 的状态管理工具 Vuex(Vuex的安装与使用)
    详解Vue的钩子函数(路由导航守卫、keep-alive、生命周期钩子)
  • 原文地址:https://www.cnblogs.com/whzhaochao/p/5023445.html
Copyright © 2011-2022 走看看