Ios_ Network Request _ Proxy mode

#pragma mark - 网络请求代理方式（异步）- (IBAction)DelegateButtonDidClicked:(UIButton *)sender { // 1、拼接 urlString,网址里面必须写 http:// NSString *urlString = @"http://ipad-bjwb.bjd.com.cn/DigitalPublication/publish/Handler/APINewsList.ashx?
date=20131129&startRecord=1&len=5&udid=1234567890&terminalType=Iphone&cid=213"; // 2、依据字符串创建 URL(统一资源定位符) NSURL *url = [NSURL URLWithString:urlString]; // 3、依据 url 创建 request 请求类的对象 NSURLRequest *request = [NSURLRequest requestWithURL:url]; // 4、请求数据（代理回调方式）遵守代理 <NSURLConnectionDataDelegate> [NSURLConnection connectionWithRequest:request delegate:self];}

Proxy method
Client receives response from server

#pragma mark | client收到server的响应- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{    // 仅仅运行一次    // 初始化 receiveData 对象    self.receiveData = [NSMutableData data];}

Client receiving data (not all at once)

#pragma| client收数据(并不是一次性所有拿到)- (void**)data{    // 每次返回的都是新数据    // 拼接数据(请求一点 拼接一点)    [self.receiveData appendData:data];}

Client receives data completion

#pragma mark | Client receives data completion- (void) Connectiondidfinishloading: (nsurlconnection*) connection{//Parse Data    nsdictionary*dict = [Nsjsonserialization jsonobjectwithdata: Self. ReceivedataOptions: (nsjsonreadingmutablecontainers) Error:Nil];Nsarray*array = dict[@"News"]; Self. Newsarray= [NsmutablearrayArray]; for(nsdictionary*smalldict in array) {Newsmodal *modal = [[Newsmodal alloc] init];        [Modal setvaluesforkeyswithdictionary:smalldict]; [ Self. NewsarrayAddobject:modal]; } for(Newsmodal *modal in Self. Newsarray) {NSLog(@"%@", modal. Title); }}

Network request failed

#pragma mark | 网络请求失败- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{    NSLog(@"%@", error);}

Ios_ Network Request _ Proxy mode