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iOS网络请求基础知识

2015-07-01  本文已影响819人  Lonely__M
NSString *urlStr = [NSString stringWithFormat:@"http://13057506160.xicp.net/api/chguserinfo?name=%@&age=%@&address=%@&sex=%@&info=%@",@"admin",@"20",@"nanjing",@"男",@"succ"];
    //中文编码格式
    urlStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    NSURL *url = [NSURL URLWithString:urlStr];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    
    NSURLConnection *conn = [NSURLConnection connectionWithRequest:request delegate:self];

   [conn start];
NSString *urlStr = [NSString stringWithFormat:@"http://13057506160.xicp.net/api/chguserinfo"];
        //中文编码格式
    NSURL *url = [NSURL URLWithString:urlStr];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    NSString *dataStr = [NSString stringWithFormat:@"name=%@&age=%@&address=%@&sex=%@&info=%@",@"mahong",@"20",@"nanjing",@"nan",@"succ"];
    NSData *data = [dataStr dataUsingEncoding:NSUTF8StringEncoding];
    
    [request setHTTPBody:data];
    [request setHTTPMethod:@"POST"];
    [request setTimeoutInterval:5];
    
    NSURLConnection *conn = [NSURLConnection connectionWithRequest:request delegate:self];
    [conn start];
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSLog(@"开始接收数据");
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [resultData appendData:data];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    NSLog(@"请求错误");
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSString *result = [[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding];
    NSLog(@"请求结果:%@",result);
}

tip

 arr = [arr sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
       
        NSComparisonResult result = [obj1 compare:obj2];
        return  result == NSOrderedDescending;
    }];
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