1.在页面按钮或图标控件中添加点击事件，并调用选择文件动作

    //点击图片选择视频按钮事件public void uploadvideo(View view){Intent intent = new Intent(Intent.ACTION_GET_CONTENT);   //  选择文件动作intent.setType("video/*");                              //  要选择的文件类型为视频startActivityForResult(intent,REQUEST_CODE_VIDEO);}

2.在 onActivityResult 方法中获取实际视频地址

    @Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (requestCode == REQUEST_CODE_VIDEO && resultCode == RESULT_OK){Uri fileUri = data.getData();// 4.4及以上系统使用这个方法处理if(DocumentsContract.isDocumentUri(this,fileUri)){  //4.4以上版本获取路劲String docID = DocumentsContract.getDocumentId(fileUri);String id = docID.split(":")[1];Cursor cursor = getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,null,MediaStore.Video.Media._ID+"="+id,null,null);if(cursor!=null){if(cursor.moveToFirst()){int columnId = cursor.getColumnIndex(MediaStore.Video.Media.DATA);filePath = cursor.getString(columnId);}}}else {   //4.4以前获取路径filePath = getVideoPath(fileUri, null);}if(filePath!=null){//根据实际路劲获取缩略图Bitmap thumbnail = ThumbnailUtils.createVideoThumbnail(filePath, MediaStore.Video.Thumbnails.MINI_KIND);if (thumbnail != null) {//对上传的视频大小进行限制if(getVoidSize(filePath)>=30){Tools.tips(getApplicationContext(),"视频大小不能超过30M");}else{//将满足条件的视频缩略图显示到ImageView控件里ImageView imageView = findViewById(R.id.video_img);imageView.setImageBitmap(thumbnail);}}}}}

3.获取视频路劲方法

    //获取视频路劲private String getVideoPath(Uri uri, String selection) {String path = null;// 通过Uri和selection来获取真实的视频路径Cursor cursor = getContentResolver().query(uri, null, selection, null, null);if (cursor != null) {if (cursor.moveToFirst()) {path = cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.DATA));}cursor.close();}return path;}

4.获取视频大小方法

    //获取视频大小private double getVoidSize(String filePath){long size = Tools.getVideoSize(filePath);double sizeInMegabytes = 0;if (size > 0) {// 转换为可读的格式，例如MBsizeInMegabytes = (size / 1024.0) / 1024.0;}return sizeInMegabytes;}

5.上传视频方法

    //上传视频private void uploadVideo(String filePath,String sjid) {OkHttpClient okHttpClient = new OkHttpClient();if(filePath!=""&&filePath!=null){if(filePath.contains("mp4")){File file=new File(filePath);MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM).addFormDataPart("video",file.getName(), RequestBody.create(MediaType.parse("video*//*"),file)).addFormDataPart("sjid",sjid);MultipartBody  requestBody = builder.build();Request request = new Request.Builder().url(Quantity.url_XluploadVideo).post(requestBody).build();Call call = okHttpClient.newCall(request);call.enqueue(new Callback() {@Overridepublic void onFailure(Call call, IOException e) {Log.e("TAG", "onFailure: " + e);runOnUiThread(new Runnable() {@Overridepublic void run() {Toast.makeText(Dkxl_main.this, "视频上传失败", Toast.LENGTH_SHORT).show();
}
});
}@Overridepublic void onResponse(Call call, Response response) throws IOException {Log.e("TAG", "视频上传成功" + response);runOnUiThread(new Runnable() {@Overridepublic void run() {Tools.tips(getApplicationContext(),"视频上传成功");}});}});}}}