我在使用 Retrofit2 发送音频文件时遇到困难。我得到 import pandas as pd
import numpy as np
import ma``tplotlib.pyplot as plt
import matplotlib.animation as animation
df = data.iloc[0:250, 4:12]
df1 = df2.iloc[:,0:3]
a1 = df.iloc[:,0]/2
a2 = df.iloc[:,1]/2
b1 = df.iloc[:,2]/2
b2 = df.iloc[:,3]/2
c1 = df.iloc[:,4]/2
c2 = df.iloc[:,5]/2
m1 = df1.iloc[:,0]
m2 = df1.iloc[:,1]
m3 = df1.iloc[:,2]
fig ,ax = plt.subplots()
l1, = ax.plot (vert1, vert2, 'ro', markersize = m1[0])
l2, = ax.plot (long1, long2, 'ro', markersize = m2[0])
l3, = ax.plot (tras1, tras2, 'ro', markersize = m3[0])
def init():
l1.set_data([],[])
l2.set_data([],[])
l3.set_data([],[])
return (l1,l2,l3)
def animate(i,l1,l2,l3):
l1.set_data(vert1[i], vert2[i])
l1.set_markersize(m1[i])
l2.set_data(long1[i], long2[i])
l2.set_markersize(m2[i])
l3.set_data(tras1[i], tras2[i])
l3.set_markersize(m3[i])
return (l1,l2,l3)
Writer = animation.writers['ffmpeg']
writer = Writer(fps= 100, metadata = dict(artist = 'me'), bitrate = 1800)
ani = animation.FuncAnimation(fig, animate, fargs=(l1,l2,l3), init_func=init, interval=10, blit=False)
ani.save('/Users/gokulthangavel/Downloads/basic_animation.mp4', writer = writer)
plt.show()
。如何在 request.file 中发送文件，而不是在 request.body 中？另外，如何将其作为文件发送（具有原始名称、缓冲区等属性）？这是我的代码：
file: 'okhttp3.MultipartBody$Part@8f3c9ed'这里我称之为：
@FormUrlEncoded
@POST("audio/upload")
fun uploadAudio(
@Part("file") file: MultipartBody.Part,
@Field("title") title: String,
@Field("description") description: String,
@Field("writer") writer: String,
@Field("privacy") privacy: Int,
@Field("duration") duration: Int,
@Field("secretLink") secretLink: String,
@Field("isForKids") isForKids: Boolean,
@Field("language") language: String,
@Field("tags") tags: List<Tag>,
): Call<Any>
当我尝试 private fun uploadAudio() {
val sharedPreferences = context?.getSharedPreferences("sharedPrefs", Context.MODE_PRIVATE)
if (title == null) {
return Toast.makeText(requireContext(), "Title is required", Toast.LENGTH_LONG).show()
}
if (description == null) {
return Toast.makeText(requireContext(), "Description is required", Toast.LENGTH_LONG).show()
}
if (newAudio == null) {
return Toast.makeText(requireContext(), "Audio file is required", Toast.LENGTH_LONG).show()
}
mainContent.visibility = GONE
newAudioProgressBar.visibility = VISIBLE
submitButton.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.upload_avd, 0)
val avdSubmitButton = submitButton.compoundDrawables[2] as AnimatedVectorDrawable
avdSubmitButton.start()
val inputStream = context?.contentResolver?.openInputStream(Uri.parse(newAudio))
val requestFile = RequestBody.create(MediaType.parse("audio/mpeg"), File(newAudio))
val body = MultipartBody.Part.createFormData("file", title, requestFile)
RetrofitService().uploadAudio(
body,
title!!,
description!!,
sharedPreferences?.getString("token", null).toString(),
privacy!!,
audioDuration!! / 1000,
secretLink.text.toString(),
forKids!!,
language!!,
tagAdapter.tags
).enqueue(object : Callback<Any> {
@SuppressLint("LogNotTimber")
override fun onFailure(call: Call<Any>, t: Throwable) {
d("#Error", "${t.message}")
mainContent.visibility = VISIBLE
newAudioProgressBar.visibility = GONE
Toast.makeText(requireContext(), t.message, Toast.LENGTH_SHORT).show()
}
@SuppressLint("LogNotTimber")
override fun onResponse(call: Call<Any>, response: Response<Any>) {
navHostFragment.findNavController().navigate(R.id.myAudiosFragment)
Toast.makeText(requireContext(), "Audio uploaded successfully!", Toast.LENGTH_SHORT).show()
}
})
}
时，它说找不到文件。 newAudio 等于 File(newAudio)。