通过okhttp3上传文件

问题描述

所以我自己回答这个问题。

因此,我首先将输出流打开到一个临时文件

@H_403_4@imageTempUploadfile=new File(Environment.getExternalStorageDirectory()+"/inpaint/"); if(!imageTempUploadfile.exists()) imageTempUploadfile.mkdirs(); imageTempUploadfile2 = new File(Environment.getExternalStorageDirectory() + "/inpaint/"+"file"+".docx"); OutputStream outputTempFileStream = new FileOutputStream(imageTempUploadfile2);

扩展名取决于mime类型。您可以通过以下方式找到mime类型

@H_403_4@@Override public void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); if(resultCode==RESULT_OK && requestCode==0){ Log.d("uri data",""+data.getData()); String mimetype = context.getContentResolver().getType(data.getData()); selectedFileUri = data.getData();

现在从文件读取并将其内容写入临时文件

@H_403_4@selectedFileInputStream = getContentResolver().openInputStream(selectedFileUri);

现在写入文件

@H_403_4@try { try { byte[] buffer = new byte[4 * 1024]; // or other buffer size int read; while ((read = selectedFileInputStream.read(buffer)) != -1) { outputTempFileStream.write(buffer, 0, read); } outputTempFileStream.flush(); } finally { outputTempFileStream.close(); } } catch (Exception e) { e.printStackTrace(); // handle exception, define IOException and others }

最后

@H_403_4@MultipartUtility multipart = new MultipartUtility(urlLeaveFormApply, charset); multipart.addFilePart("data[User][user_picture]", imageTempUploadfile2);

成功之后的最后

@H_403_4@imageTempUploadfile2.delete();

解决方法

选择图像,doc或pdf后,我想将它们通过okhttp3。如何进行此操作?

@Override
public void onActivityResult(int requestCode,int resultCode,Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode,resultCode,data);

    if(resultCode==RESULT_OK && requestCode==0){
        Log.d("uri data",""+data.getData());

        selectedFileUri = data.getData();
        fileToBeUploaded = new File(""+selectedFileUri);
        fileName = fileToBeUploaded.getName();
        Log.d("filename",""+fileName);

并在okhttp 3中

RequestBody formBody = new MultipartBody.Builder()
                    .setType(MultipartBody.FORM)
                    .addFormDataPart("data[User][user_picture]",fileToBeUploaded.getName(),RequestBody.create(MediaType.parse("*/*"),fileToBeUploaded))

显示的错误是

java.io.FileNotFoundException: content:/com.android.providers.media.documents/document/image%3A40227: open failed: ENOENT (No such file or directory)

谢谢。

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