ASI基本使用

////  HMViewController.m//  02-ASI01-基本使用（了解）//#import "HMViewController.h"#import "ASIHTTPRequest.h"@interface HMViewController () <ASIHTTPRequestDelegate>@property (nonatomic, strong) ASIHTTPRequest *request;@end@implementation HMViewController- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    [self asynGet];}/** *  异步的GET请求 */- (void)asynGet{    // 1.URL    NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];    // 2.创建一个请求对象    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];    request.timeOutSeconds = 15; // 15秒后服务器还没有响应，就算超时    // 设置代理    request.delegate = self;    // 3.开始请求    [request startAsynchronous];    self.request = request;}- (void)dealloc{    // 这句代码为了防止：控制器销毁了，request还回来调用控制器的代理方法，引发野指针    [self.request clearDelegatesAndCancel];}#pragma mark - ASIHTTPRequestDelegate/** *  1.开始发送请求 */- (void)requestStarted:(ASIHTTPRequest *)request{    NSLog(@"requestStarted");}/** *  2.接收到服务器的响应头信息 */- (void)request:(ASIHTTPRequest *)request didReceiveResponseHeaders:(NSDictionary *)responseHeaders{    NSLog(@"didReceiveResponseHeaders");}/** *  3.接收到服务器的实体数据（具体数据） *  只要实现了这个代理方法，responseData\responseString就没有值 *///- (void)request:(ASIHTTPRequest *)request didReceiveData:(NSData *)data//{//    NSLog(@"didReceiveData-%@", data);//}/** *  4.服务器的响应数据接收完毕 */- (void)requestFinished:(ASIHTTPRequest *)request{    NSLog(@"requestFinished--%@", [request responseData]);}/** *  5.请求失败 */- (void)requestFailed:(ASIHTTPRequest *)request{    NSLog(@"requestFailed");}/** *  同步的GET请求 */- (void)synGet{    // 1.URL    NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/video"];    // 2.创建一个请求对象    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];    request.timeOutSeconds = 15; // 15秒后服务器还没有响应，就算超时    // 3.开始请求(这行代码会卡主，等待服务器给数据)    [request startSynchronous];    // 4.请求完毕    NSError *error = [request error];    if (error) {        NSLog(@"请求失败---%@", error);    } else {        NSData *data = [request responseData];        //        NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];        //        NSString *str = [request responseString];        NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];        NSLog(@"请求成功---%@", dict);    }}@end