iOS 关于OSS上传文件

1.安装OSS这些就不需要再说了，其次先让后台配置好一些参数，然后拿到后便可以直接使用了

目前用到的主要参数有以下三个：
ServerUrl
Endpoint
bucketName

2.直接在封装好的请求文件 CCNetworkRequstionMD5.m 里面，增加一个方法 （多种文件类型上传，传入你所需要的文件数组即可）

**** 主要代码：*****
+ (void)uploadFileArray:(NSArray *)fileArray success:(void (^)(id res))success{
    
    NSMutableArray * array = [NSMutableArray array];
    id<OSSCredentialProvider> credentialProvider = [[OSSAuthCredentialProvider alloc] initWithAuthServerUrl:OSS_STSTOKEN_URL];
    OSSClientConfiguration *cfg = [[OSSClientConfiguration alloc] init];
    cfg.maxRetryCount = 3;
    cfg.timeoutIntervalForRequest = 15;
    cfg.isHttpdnsEnable = NO;
    cfg.crc64Verifiable = YES;

    OSSClient *client = [[OSSClient alloc] initWithEndpoint:OSS_ENDPOINT credentialProvider:credentialProvider clientConfiguration:cfg];
    [OSSManager sharedManager].defaultClient = client;
    
    OSSPutObjectRequest * put = [OSSPutObjectRequest new];
    [fileArray enumerateObjectsUsingBlock:^(CCHomeworkFileModel *fileModel, NSUInteger idx, BOOL * _Nonnull stop) {
        put.bucketName = OSS_BUCKET_PRIVATE;//后台给的currentTimeStr
       
        NSRange startRange = [fileModel.name rangeOfString:@"."];
        NSRange range = NSMakeRange(startRange.location + startRange.length, fileModel.name.length - startRange.location - startRange.length);
        NSString *type = [fileModel.name substringWithRange:range];
        
        // objectKey看看后台需要什么样的格式上传，我们这边的格式是：日期/文件名（13位时间戳） 示例：20210128/1611807485567.jpg
        put.objectKey = [NSString stringWithFormat:@"%@/%lld.%@",[CCNetworkRequstionMD5 getCurrentTime],[DateTranslate getNowTimeStamp],type];
        put.uploadingData = fileModel.data; // 直接上传NSData字节
        put.uploadProgress = ^(int64_t bytesSent, int64_t totalByteSent, int64_t totalBytesExpectedToSend) {
            KLog(@"%lld, %lld, %lld", bytesSent, totalByteSent, totalBytesExpectedToSend);
        };
        
        OSSTask * putTask = [client putObject:put];
        [putTask continueWithBlock:^id(OSSTask *task) {
            if (!task.error) {
                [array addObject:put.objectKey];//多张图片时这里面存放的图片名字的数组在把这些名字弄成json字符串 给服务器
                if (fileArray.count > 1) {
                    if (idx == fileArray.count-1) {
                        success(array);
                    }
                }else{
                    success(array);
                }
            } else {
                NSLog(@"upload object failed, error: %@" , task.error);
            }
            return nil;
        }];
        [putTask waitUntilFinished];//这个时sdk给的用于多张图片上传时 加上它时只有第一个走了成功或者失败第二个才会走 。相当于等待串行。
    }];
}

****以下不是主要代码，主要记录一下我这边使用的流程，可供参考*****
/// 获取文件上传成功后调用的
/// @param objs  oss上传之后返回的ObjectName的数组，由path跟文件名组成，如“20210304/12345678.txt”
/// @param obj    oss上传之后返回的ObjectName，由path跟文件名组成，如“20210304/12345678.txt”
/// @param isCompress   是否要进行压缩，某些特定场景需要传，比如添加课件 int
+ (void)getOSSFileUploadSuccessWithArray:(NSArray *)objs WithObj:(NSString *)obj WithIsCompress:(BOOL)isCompress success:(void (^)(id dataArray))success{
    NSMutableDictionary *dic = [NSMutableDictionary dictionary];
    if(objs.count > 0){
        NSString *str = [objs componentsJoinedByString:@","];
        [dic setObject:str forKey:@"objs"];
    }else{
        [dic setObject:obj forKey:@"obj"];
    }
    // [dic setObject:@"" forKey:@"isCompress"];
    [CCNetworkRequstionMD5 NetRequestGETWithRequestURL:XQ_URLString(URL_File_OSS_Upload) WithParameter:dic isShowHud:NO WithReturnValeuBlock:^(id  _Nonnull returnValue) {
        CCCommonResponse *listModel = returnValue;
        if (listModel.code == HttpCode_normal) {
            NSArray*dataArray = [CCHomeworkFileModel mj_objectArrayWithKeyValuesArray:listModel.data];
            success(dataArray);
        }
    } WithFailureBlock:^(id  _Nonnull errorCode) {
        
    }];
}

3.以下是在作业上传 CCHomeWorkDetailViewController.m 文件中的使用

- (void)updateFileRequestWithFilesArray:(NSArray *)filesArray{
    NSMutableArray *nameArray = [NSMutableArray array];
    [filesArray enumerateObjectsUsingBlock:^(CCHomeworkFileModel  *obj, NSUInteger i, BOOL * _Nonnull stop) {
        [nameArray addObject:obj.name];
    }];
    __weak typeof(self) weakSelf = self;
    [CCNetworkRequstionMD5 uploadFileArray:filesArray success:^(id  _Nonnull res) { // 使用OSS先提交 图片、文件 
        [CCNetworkRequstionMD5 getOSSFileUploadSuccessWithArray:res WithObj:@"" WithIsCompress:NO success:^(id  _Nonnull dataArray) { // 获取上传后返回的数据
            [dataArray enumerateObjectsUsingBlock:^(CCHomeworkFileModel  *model, NSUInteger idx, BOOL * _Nonnull stop) {
                   [weakSelf.fileDataArray addObject:@{@"name":nameArray[idx],@"icon":model.icon,@"url":model.url}];
            }];
            [weakSelf getSaveNewNoteRequestWithFilesArray:weakSelf.fileDataArray]; // 提交作业请求
        }];
    }];
}

- (void)getSaveNewNoteRequestWithFilesArray:(NSArray *)filesArray{
    NSMutableDictionary *param = [NSMutableDictionary dictionary];
    if(self.textView.text.length > 0){
        [param setObject:self.textView.text forKey:@"content"];
    }
    [param setObject:[NSString stringWithFormat:@"%d",self.model.id] forKey:@"schoolworkId"];
    if(filesArray.count > 0){
        [param setObject:filesArray forKey:@"files"];
    }else{
        if(self.textView.text.length == 0){
            [HUDUtil ViewWithTitle:@"请先按要求完成作业"];
            return;;
        }
    }
    __weak typeof(self) weakSelf = self;
    [CCNetworkRequstionMD5 NetRequstJsonWithMethod:@"POST" RequestURL:XQ_URLString(URL_Course_Work_Commit) WithParameter:param isShowHud:NO WithReturnValeuBlock:^(id  _Nonnull returnValue) {
        [HUDUtil hideHudAtWindow];
        CCCommonResponse *listModel = returnValue;
        if (listModel.code == HttpCode_normal) {
            // 刷新页面
            [[NSNotificationCenter defaultCenter]postNotificationName:@"ReloadHomeWorkListData" object:@{@"row":[NSString stringWithFormat:@"%zd",self.row],@"page":[NSString stringWithFormat:@"%d",self.page]}];// 刷新作业列表
            [weakSelf.navigationController popViewControllerAnimated:YES];
        }
        [HUDUtil ViewWithTitle:listModel.msg];
    } WithFailureBlock:^(id  _Nonnull errorCode) {
        [HUDUtil hideHudAtWindow];
    }];
}

在了解这方面的知识，找到了这一篇，借鉴了一下
https://blog.csdn.net/qq_33560608/article/details/88761764