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iOS 使用AFN上传视频到服务器示例代码

2019年07月24日  | 移动技术网IT编程  | 我要评论

胡宏俊,柳州莫青,私立龟鱼派的童年破坏

这里介绍用afn上传本地拍摄的视频到服务端。

整体思路：拿到视频资源，先转为mp4，写进沙盒，然后上传，上传成功后要记得删除沙盒中的文件。

压缩导出视频

//视频转换为mp4
//转码操作...
_hud.mode = mbprogresshudmodeindeterminate;
_hud.labeltext = @"转码中...";
avurlasset *avasset = [avurlasset urlassetwithurl:_filepathurl options:nil];
nsdateformatter* formater = [[nsdateformatter alloc] init];
[formater setdateformat:@"yyyymmddhhmmss"];
_filename = [nsstring stringwithformat:@"output-%@.mp4",[formater stringfromdate:[nsdate date]]];
_outfilepath = [nshomedirectory() stringbyappendingformat:@"/documents/%@", _filename];
nsarray *compatiblepresets = [avassetexportsession exportpresetscompatiblewithasset:avasset];

if ([compatiblepresets containsobject:avassetexportpresetmediumquality]) {
  mylog(@"outpath = %@",_outfilepath);
  avassetexportsession *exportsession = [[avassetexportsession alloc]initwithasset:avasset presetname:avassetexportpresetmediumquality];
  exportsession.outputurl = [nsurl fileurlwithpath:_outfilepath];
  exportsession.outputfiletype = avfiletypempeg4;
  [exportsession exportasynchronouslywithcompletionhandler:^{
    if ([exportsession status] == avassetexportsessionstatuscompleted) {
      mylog(@"avassetexportsessionstatuscompleted---转换成功");
      _filepath = _outfilepath;
      _filepathurl = [nsurl urlwithstring:[nsstring stringwithformat:@"file://%@",_outfilepath]];
       mylog(@"转换完成_filepath = %@\\n_filepathurl = %@",_filepath,_filepathurl);
      //获取大小和长度
      [self setviewtext];
      [self uploadnetworkwithparam:@{@"contenttype":@"application/octet-stream",@"discription":description}];
    }else{
      mylog(@"转换失败,值为:%li,可能的原因:%@",(long)[exportsession status],[[exportsession error] localizeddescription]);
      [_hud hide:yes];
      [myhelper showalertwith:nil txt:@"转换失败,请重试"];
    }
  }];
}

开始上传

- (void)uploadnetworkwithparam:(nsdictionary*)dict {
  mylog(@"开始上传_filepath = %@\\n_filepathurl = %@",_filepath,_filepathurl);
  afhttprequestserializer *ser=[[afhttprequestserializer alloc]init];
  nsmutableurlrequest *request =
  [ser multipartformrequestwithmethod:@"post"
               urlstring:[nsstring stringwithformat:@"%@%@",kbaseurl,kvideouploadurl]
               parameters:@{@"path":@"show",@"key":_key,@"discription":dict[@"discription"],@"isimage":@(_isimage)}
       constructingbodywithblock:^(id<afmultipartformdata> formdata) {
           [formdata appendpartwithfileurl:_filepathurl name:@"file" filename:_filename mimetype:dict[@"contenttype"] error:nil];
         if (!_isimage) {
    [formdata appendpartwithfileurl:_path2url name:@"tmp" filename:@"tmp.png" mimetype:@"image/png" error:nil];
         }
       } error:nil];
  //@"image/png"  @"application/octet-stream" mimetype
  afurlsessionmanager *manager = [[afurlsessionmanager alloc] initwithsessionconfiguration:[nsurlsessionconfiguration defaultsessionconfiguration]];
  nsprogress *progress = nil;
  nsurlsessionuploadtask *uploadtask = [manager uploadtaskwithstreamedrequest:request progress:&progress completionhandler:^(nsurlresponse *response, id responseobject, nserror *error) {
    if (error) {
       mylog(@"request = %@", request );
       mylog(@"response = %@", response );
      mylog(@"error: %@", error );
      [_hud hide:yes];
      cxalertview *alert=[[cxalertview alloc]initwithtitle:nslocalizedstring(@"warning", nil)
                             message:nslocalizedstring(@"upload failed",nil)
                        cancelbuttontitle:nslocalizedstring(@"iknow", nil)];
      alert.showblurbackground = no;
      [alert show];
    } else {
      mylog(@"%@ %@", response, responseobject);
      nsdictionary *backdict=(nsdictionary *)responseobject;
      if ([backdict[@"success"] boolvalue] != no) {
        _hud.labeltext = nslocalizedstring(@"updating", nil);
        [self updateresxdatewithdict:backdict discription:dict[@"discription"]];
        [_hud hide:yes];
      }else{
        [_hud hide:yes];
        [myhelper showalertwith:nil txt:backdict[@"msg"]];
      }
    }
    [progress removeobserver:self
           forkeypath:@"fractioncompleted"
             context:null];
  }];
  [progress addobserver:self
        forkeypath:@"fractioncompleted"
         options:nskeyvalueobservingoptionnew
         context:null];
  [progress setuserinfoobject:@"something" forkey:@"y.x."];
  [uploadtask resume];
}

清除documents中视频

-(void)clearmoviefromdoucments{
  nsfilemanager *filemanager = [nsfilemanager defaultmanager];
  nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes);
  nsstring *documentsdirectory = [paths objectatindex:0];
  nsarray *contents = [filemanager contentsofdirectoryatpath:documentsdirectory error:null];
  nsenumerator *e = [contents objectenumerator];
  nsstring *filename;
  while ((filename = [e nextobject])) {
    mylog(@"%@",filename);
    if ([filename isequaltostring:@"tmp.png"]) {
      mylog(@"删除%@",filename);
      [filemanager removeitematpath:[documentsdirectory stringbyappendingpathcomponent:filename] error:null];
      continue;
    }
    if ([[[filename pathextension] lowercasestring] isequaltostring:@"mp4"]||
      [[[filename pathextension] lowercasestring] isequaltostring:@"mov"]||
      [[[filename pathextension] lowercasestring] isequaltostring:@"png"]) {
      mylog(@"删除%@",filename);
      [filemanager removeitematpath:[documentsdirectory stringbyappendingpathcomponent:filename] error:null];
    }
  }
}

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