笔记retrofit 上传图片

最新推荐文章于 2023-04-09 20:54:42 发布

原创最新推荐文章于 2023-04-09 20:54:42 发布 · 309 阅读

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#上传图片

本文介绍了一个使用Java实现的文件上传接口及Android客户端通过Retrofit调用该接口上传图片的具体实现过程。Controller中定义了处理文件上传请求的方法，接收multipart格式的文件，并将其保存到指定目录。Android客户端部分则展示了如何创建Retrofit实例并发送带有文件的multipart请求。

Controller:

@RequestMapping(value = "/upload")
@ResponseBody
public String uploadKxf(MultipartFile file) {
LOGGER.debug("uploadKxf:" + file.getSize());
try {
File tmp = new File("d:/logs/", file.getOriginalFilename());
file.transferTo(tmp);
} catch (IllegalStateException | IOException e) {
e.printStackTrace();
}
return Result.ok("sss");

}

activity:

private void uploadImg() {
    File file = new File("storage/emulated/0/DCIM/Camera/IMG20160822143525.jpg");
    OkHttpClient okHttpClient = OkHttpUtils.getOkHttpClient();
    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://192.168.1.3:8080/") 
            .addConverterFactory(new ToStringConverterFactory()).client(okHttpClient)
            .addConverterFactory(GsonConverterFactory.create()) //Gson
            .build();
    OtherServierApi request = retrofit.create(OtherServierApi.class);
    // create RequestBody instance from file
    RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
    MultipartBody.Part body =
            MultipartBody.Part.createFormData("file", file.getName(), requestFile);

    Call<String> call= request.upImg(body);
    call.enqueue(new Callback<String>() {
        @Override
        public void onResponse(Call<String> call, Response<String> response) {
            Log.e("log","response:"+ response.body() );
        }

        @Override
        public void onFailure(Call<String> call, Throwable t) {
            Log.e("log","Throwable:"+ t.getMessage() );

        }
    });

}

OtherServierApi:

@Multipart
@POST("merchant/upload.do")
Call<String> upImg(@Part MultipartBody.Part file);