tus java client 使用以及问题说明

代码来自官方参考，支持在使用的时候发现了一些问题记录下

参考代码

• App.java

package org.example;

 

import io.tus.java.client.*;

 

import java.io.File;

import java.io.IOException;

import java.net.URL;

import java.util.HashMap;

import java.util.Map;

 

public class App {

    public static void main(String[] args) throws IOException, io.tus.java.client.ProtocolException {

        TusClient client = new TusClient();

        client.setUploadCreationURL(new URL("http://localhost:1080/files/"));

        client.enableResuming(new TusURLMemoryStore());

        File file = new File("src/main/resources/my.mp4");

        final TusUpload upload = new TusUpload(file);

        Map<String,String> medata  = new HashMap<>();

        medata.put("filename", "my.mp4");

        medata.put("filetype", "video/mp4");

        System.out.println("Starting upload...");

        upload.setMetadata(medata);

        TusExecutor executor = new TusExecutor() {

            @Override

            protected void makeAttempt() throws IOException, io.tus.java.client.ProtocolException {

                // First try to resume an upload. If that's not possible we will create a new

                // upload and get a TusUploader in return. This class is responsible for opening

                // a connection to the remote server and doing the uploading.

                TusUploader uploader = client.resumeOrCreateUpload(upload);

                // Alternatively, if your tus server does not support the Creation extension

                // and you obtained an upload URL from another service, you can instruct

                // tus-java-client to upload to a specific URL. Please note that this is usually

                // _not_ necessary and only if the tus server does not support the Creation

                // extension. The Vimeo API would be an example where this method is needed.

                // TusUploader uploader = client.beginOrResumeUploadFromURL(upload, new URL("https://tus.server.net/files/my_file"));

                // Upload the file in chunks of 1KB sizes.

               //  此处是一个问题，因为我们进行上传的文件比较大，我设置了setChunkSize 为8M，但是tus 会提示offset 409 问题

                uploader.setChunkSize(1024*1024*8);

               // 解决方法，就是同时也设置setRequestPayloadSize 这样可以确保对于大文件上传没有问题

                uploader.setRequestPayloadSize(1024*1024*8);

                // Upload the file as long as data is available. Once the

                // file has been fully uploaded the method will return -1

                do {

                    // Calculate the progress using the total size of the uploading file and

                    // the current offset.

                    long totalBytes = upload.getSize();

                    long bytesUploaded = uploader.getOffset();

                    double progress = (double) bytesUploaded / totalBytes * 100;

                    System.out.printf("Upload at %06.2f%%.\n", progress);

                } while (uploader.uploadChunk() > -1);

                // Allow the HTTP connection to be closed and cleaned up

                uploader.finish();

                System.out.println("Upload finished.");

                System.out.format("Upload available at: %s", uploader.getUploadURL().toString());

            }

        };

        executor.makeAttempts();

    }

}

说明

tus-java-client 维护并不是很频繁，同时对于TusURLStore 设计主要提供了基于内存的，如果我们有特殊场景可以自己扩展下

参考资料

https://github.com/tus/tus-node-server
https://github.com/tus/tus-java-client