AFNetworking 同时向服务端传送参数＋图片_afnetworking constructingbodywithblock-优快云博客

本文介绍在iOS应用中如何实现图片及参数的上传功能，详细展示了使用AFNetworking库的不同方法进行图片上传的过程，包括从内存中读取图片数据、从文件路径读取图片以及上传进度的监控。

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同时向服务端传送参数＋图片。

方法upload第一种方法：

都需要添加到constructingBodyWithBlock:^(id<AFMultipartFormData> formData)中。

原理：服务端截取的写法。这个需要调适

//如果有需要打点或附加的参数，在此处添加

NSDictionary *param =nil;

param = [NSDictionarydictionaryWithObjectsAndKeys:@{@"agent":@"X-IOS",@"version":[[UIDevicecurrentDevice] systemVersion],@"device":[[UIDevicecurrentDevice] model],@"local":country,@"mac":macToken},@"header",

@{@"params":@""},@"request",nil];

[_manager POST:url

parameters:nil

constructingBodyWithBlock:^(id<AFMultipartFormData> formData){

if ([imageArraycount]>0) {

for (NSInteger i=0; i < [imageArraycount];i++) {

id data = imageArray[i];

if ([dataisKindOfClass:UIImage.class]) {

NSData *imageData =UIImageJPEGRepresentation(data,0.01);

NSString *fileName = [NSStringstringWithFormat:@"file%ld.jpg",(long)i];

[formData appendPartWithFileData:imageDataname:@"uploadFile"fileName:fileName mimeType:@"image/jpeg"];

}

NSData *data = [NSJSONSerializationdataWithJSONObject:paramoptions:NSJSONWritingPrettyPrintederror:nil];

[formData appendPartWithFormData:dataname:@"params"];

}

success:^(AFHTTPRequestOperation *operation,id responseObject) {

}

failure:^(AFHTTPRequestOperation *operation,NSError *error) {

}

];

方法upload第二种方法：

/**
 *  AFN 3.0 上传
 *      有两种方式
 *          upLoad1 和 upLoad2
 */

//第一种方法是通过工程中的文件进行上传
- (void)upLoad1{

    //1。创建管理者对象
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    //2.上传文件
    NSDictionary *dict = @{@"username":@"1234"};

    NSString *urlString = @"22222";
    [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        //上传文件参数
        UIImage *iamge = [UIImage imageNamed:@"123.png"];
        NSData *data = UIImagePNGRepresentation(iamge);
        //这个就是参数
        [formData appendPartWithFileData:data name:@"file" fileName:@"123.png" mimeType:@"image/png"];

    } progress:^(NSProgress * _Nonnull uploadProgress) {

        //打印下上传进度
        WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

        //请求成功
        WKNSLog(@"请求成功：%@",responseObject);

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

        //请求失败
        WKNSLog(@"请求失败：%@",error);
    }];

}

方法upload第三种方法：
//第二种是通过URL来获取路径，进入沙盒或者系统相册等等
- (void)upLoda2{
    //1.创建管理者对象
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    //2.上传文件
    NSDictionary *dict = @{@"username":@"1234"};

    NSString *urlString = @"22222";
    [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

        [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"文件地址"] name:@"file" fileName:@"1234.png" mimeType:@"application/octet-stream" error:nil];
    } progress:^(NSProgress * _Nonnull uploadProgress) {

        //打印下上传进度
        WKNSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

        //请求成功
        WKNSLog(@"请求成功：%@",responseObject);

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

        //请求失败
        WKNSLog(@"请求失败：%@",error);
    }];
}