Android Retrofit2.0 上传单张图片和多张图片

忘是亡心i 2023-10-18 17:55 30阅读 0赞

#### 上传单张图片 ####

@Multipart
        @POST("invitation/upload")
        Flowable<BaseResponse> uploadImage(@Part MultipartBody.Part part);

然后进行调用

val file = File(selectList!![i].compressPath)
    val requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file)
    val body = MultipartBody.Part.createFormData("file", file.name, requestFile)  
    
    getApiService().uploadImage(body )
    	.observeOn(AndroidSchedulers.mainThread())
        .subscribeOn(Schedulers.io())
        .subscribe()

#### 上传多张图片 ####

@Multipart
    @POST("invitation/upload")
    Flowable<BaseResponse<UploadApplyInfo>> uploadImages(@Part List<MultipartBody.Part> list);

然后进行调用

val list = ArrayList<MultipartBody.Part>()
    
    for(i in 0 until selectList!!.size){
        val file = File(selectList!![i].compressPath)
        val requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file)
        val body = MultipartBody.Part.createFormData("file$i", file.name, requestFile)
        list.add(body)
    }
    
    getApiService().uploadImages(list)
    	.observeOn(AndroidSchedulers.mainThread())
        .subscribeOn(Schedulers.io())
        .subscribe()

#### 上传多张图片(方式二) ####

@Multipart
    @POST("invitation/api/v1/upload/parkingPoint")
    Flowable<BaseResponse<UploadApplyInfo>> uploadApplyParkPointImage5(@PartMap Map<String, RequestBody> map);

然后进行调用

val map = HashMap<String, RequestBody>()
    for(i in 0 until selectList!!.size){
        val file = File(selectList!![i].compressPath)
        val requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file)
        map["file$i\"; filename=\"" + file.name] = requestFile //注意这里的\"，报文中如需要filename，需要进行拼接成，类似于name="file1"; filename="Luban_1556607036831.jpg"的形式
    }
    
    getApiService().uploadApplyParkPointImage5(map)
    	.observeOn(AndroidSchedulers.mainThread())
    	.subscribeOn(Schedulers.io())
    	.subscribe()

> 这里，上传多张图片，也可以使用  
> uploadImages(@Part MultipartBody.Part… files)，可变参数，但需要提前知道图片个数  
> uploadImages(@Part MultipartBody.Part file1,@Part MultipartBody.Part file2),固定参数，需要提前知道图片个数

#### 上传单张图片的报文 ####

贴上报文日志以作参考

D/OkHttp: --> POST http://xxxx.xxxx.com/invitation/upload
    D/OkHttp: Content-Type: multipart/form-data; boundary=9741fa91-558d-4b71-9117-e44139c9c02c
    D/OkHttp: Content-Length: 117843
    D/OkHttp: --9741fa91-558d-4b71-9117-e9c0144139cc
    D/OkHttp: Content-Disposition: form-data; name="file"; filename="Luban_1556607508304.jpg"
    D/OkHttp: Content-Type: multipart/form-data
    D/OkHttp: Content-Length: 117616
    D/OkHttp: ������JFIF����������������C��.....省略.....
    D/OkHttp: �kr*�\�Y5&��d��&��:��D`ȋ���
    D/OkHttp: --9741fa91-558d-4b71-9117-e9c0144139cc--
    D/OkHttp: --> END POST (117843-byte body)
    D/OkHttp: <-- 200 OK http://xxxx.xxxx.com/invitation/upload (186ms)
    D/OkHttp: Server: openresty/1.13.6.2
    D/OkHttp: Date: Tue, 30 Apr 2019 06:58:31 GMT
    D/OkHttp: Content-Type: application/json;charset=UTF-8
    D/OkHttp: Content-Length: 113
    D/OkHttp: Connection: keep-alive
    D/OkHttp: {"success":true,"msg":"上传成功","data":{"imgs":"parkingpoint_img/609c6d62-b76d-47f3-98fc-8663d25bae60.jpg"}}
    D/OkHttp: <-- END HTTP (113-byte body)

#### 上传多张图片的报文 ####

贴上报文日志以作参考

D/OkHttp: --> POST http://xxxx.xxxx.com/invitation/upload
    D/OkHttp: Content-Type: multipart/form-data; boundary=0a8b3a28-37b9-49be-a23e-e57470f29025
    D/OkHttp: Content-Length: 234964
    D/OkHttp: --0a8b3a28-37b9-49be-a23e-e590257470f1
    D/OkHttp: Content-Disposition: form-data; name="file1"; filename="Luban_1556603633113.jpg"
    D/OkHttp: Content-Type: multipart/form-data
    D/OkHttp: Content-Length: 116938
    D/OkHttp: ������JFIF����������������C��.....省略.....
    D/OkHttp: --0a8b3a28-37b9-49be-a23e-e590257470f1
    D/OkHttp: Content-Disposition: form-data; name="file2"; filename="Luban_1556603633644.jpg"
    D/OkHttp: Content-Type: multipart/form-data
    D/OkHttp: Content-Length: 117616
    D/OkHttp: ������JFIF����������������C��.....省略.....
    D/OkHttp: --0a8b3a28-37b9-49be-a23e-e590257470f1--
    D/OkHttp: --> END POST (234964-byte body)
    D/OkHttp: <-- 200 OK http://xxxx.xxxx.com/invitation/upload (1129ms)
    D/OkHttp: Server: openresty/1.13.6.2
    D/OkHttp: Date: Tue, 30 Apr 2019 05:53:57 GMT
    D/OkHttp: Content-Type: application/json;charset=UTF-8
    D/OkHttp: Content-Length: 113
    D/OkHttp: Connection: keep-alive
    D/OkHttp: {"success":true,"msg":"上传成功","data":{"imgs":"parkingpoint_img/6bab770d-f017-440a-88e4-bb80593a9a7d.jpg,parkingpoint_img/602fdd4b-e52a-4c98-9068-f12e1de7e55f.jpg"}}
    D/OkHttp: <-- END HTTP (113-byte body)

可以看到，上传单张图片和多张图片的区别，就在于请求内容的个数

#### 其他 ####

[【Android实战】----基于Retrofit实现多图片/文件、图文上传][Android_----_Retrofit]  
[Android Retrofit 实现（图文上传）文字（参数）和多张图片一起上传][Android Retrofit]  
[Retrofit 2.0 超能实践（三），轻松实现多文件/图片上传/Json字符串/表单][Retrofit 2.0 _Json]

[Android_----_Retrofit]: http://www.voidcn.com/article/p-zalylgxa-uv.html
[Android Retrofit]: https://www.jianshu.com/p/a330b0df54ae
[Retrofit 2.0 _Json]: https://www.jianshu.com/p/acfefb0a204f