在和sever后台交互的过程中、有时候、他们需要我们iOS开发者以“application/json”形式上传。
NSString *accessUrl = [NSString stringWithFormat:@"%@/xxx",@"https://www.xxxxx.com:xxxx"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:accessUrl]];
request.HTTPMethod = @"POST";
//设置请求头
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
//设置请求体
NSMutableData *body = [NSMutableData data];
[body appendData:[jsonStr dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
NSHTTPURLResponse* urlResponse = nil;
NSError *error = [[NSError alloc] init];
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
if (result == nil) {
NSLog(@"json解析失败!");
}
else
{
NSData *jsonData = [result dataUsingEncoding:NSUTF8StringEncoding];
NSError *err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&err];
if(err) {
NSLog(@"json解析失败：%@",err);
}
success(dic);
}