创建get请求,
1.将网址初始化成一个OC字符串对象.
NSString * urlString = [NSString stringWithFormat:@"%@?query=%@®ion=%@&output=json&ak=6E823f587c95f0148c19993539b99295",kBusinessInfoURL,@"银行",@"济南"];
如果网址中存在中文,进行转码
NSString * urlString = @"http://p_w_picpath.zcool.com.cn/56/13/1308200901454.jpg";
NSString * newURLString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
2.构建网络URL对象
NSURL * url = [NSURL URLWithString:newURLString];
//3.创建网络请求
NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];
3.创建同步连接.
NSURLResponse * response = nil;
NSError * error = nil;
NSData * data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
4.解析
NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSLog(@"%@",dic);
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