写一段上传文件到seaweedfs的java代码

好的，以下是一个简单的上传文件到seaweedfs的Java代码示例：

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.HttpClientBuilder;
import java.io.File;
import java.io.IOException;

public class SeaweedFSUploader {
    public static void main(String[] args) throws IOException {
        String uploadUrl = "http://localhost:8888/submit"; // seaweedfs上传接口
        String filePath = "path/to/local/file"; // 本地文件路径

        File file = new File(filePath);
        if (!file.exists()) {
            System.out.println("File not found!");
            return;
        }

        // 构建上传请求
        HttpPost post = new HttpPost(uploadUrl);
        HttpEntity entity = MultipartEntityBuilder.create()
                .addBinaryBody("file", file, ContentType.DEFAULT_BINARY, file.getName())
                .build();
        post.setEntity(entity);

        // 发送上传请求
        HttpClient client = HttpClientBuilder.create().build();
        HttpResponse response = client.execute(post);

        // 处理上传结果
        int statusCode = response.getStatusLine().getStatusCode();
        if (statusCode == 200) {
            String result = EntityUtils.toString(response.getEntity());
            System.out.println("Upload success! File id is " + result);
        } else {
            System.out.println("Upload failed! Status code is " + statusCode);
        }
    }
}

请注意，以上代码中的`uploadUrl`需要根据你的实际情况进行修改，另外还需要导入一些必要的包，如`org.apache.http`等。