如何使用翻新功能上传照片? [英] How to Upload a photo using Retrofit?
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问题描述
我正在Android应用程序中使用Retrofit与REST-API通信. 当用户在我的应用程序中更改其个人资料图片时,我需要发送请求并上传新图像.这是我的服务:
I'm using Retrofit in my Android application to communicate with a REST-API. When user changes his profile picture in my application, I need to send a request and upload new image. This is my service:
@Multipart
@PATCH("/api/users/{username}/")
Call<User> changeUserPhoto(@Header("Authorization") String token,@Path("username") String userName , @Part("photo") RequestBody photo);
这是我发送请求的代码:
And this is my code to send request:
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(GlobalVars.BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
UserService userService = retrofit.create(UserService.class);
Callback<User> callback = new Callback<User>() {
@Override
public void onResponse(Response<User> response, Retrofit retrofit) {
if (response.isSuccess()) {
//do sth
} else {
// do sth else
}
}
@Override
public void onFailure(Throwable t) {
t.printStackTrace();
}
};
RequestBody photo = RequestBody.create(MediaType.parse("application/image"), new File(imageUir));
Call<User> call = userService.changeUserPhoto(token, username, photo);
call.enqueue(callback);
但是当我将此请求发送到服务器时,REST一直告诉我照片不是文件,并且编码类型出了点问题. 有人可以帮我解决这个问题吗?
But when I send this request to server, REST keeps telling me that photo is not a file and something is wrong with encoding type. Can anybody help me how to fix this?
推荐答案
尝试使用@Body
代替@Part
.
@PATCH("/api/users/{username}/")
Call<User> changeUserPhoto(@Header("Authorization") String token,@Path("username") String userName , @Body RequestBody photo);
然后使用MultipartBuilder
来构建RequestBody
RequestBody photo = RequestBody.create(MediaType.parse("application/image"), file);
RequestBody body = new MultipartBuilder()
.type(MultipartBuilder.FORM)
.addFormDataPart("photo", file.getName(), photo)
.build();
Call<User> call = userService.changeUserPhoto(token, username, body);
...
您也可以检查我的答案以解决非常相似的问题.
You can also check my answer to a very similar question.
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