如何使用Jersey (Java)通过Rest API上传csv文件？

<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet</artifactId>
    <version>2.34</version>
</dependency>

@Path("/upload")
public class FileUploadResource {
    @POST
    @Path("/csv")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public Response uploadCsvFile(@FormDataParam("file") InputStream fileInputStream,
                                  @FormDataParam("file") FormDataContentDisposition fileDetail) {
        // 处理上传的csv文件
        // 这里可以使用Java的IO操作来读取和处理文件内容
        // 也可以调用其他业务逻辑进行进一步处理

        return Response.ok("File uploaded successfully").build();
    }
}

<servlet>
    <servlet-name>Jersey Servlet</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>jersey.config.server.provider.packages</param-name>
        <param-value>com.example.rest</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>Jersey Servlet</servlet-name>
    <url-pattern>/api/*</url-pattern>
</servlet-mapping>

public class FileUploadClient {
    public static void main(String[] args) throws IOException {
        String url = "http://localhost:8080/api/upload/csv";
        String filePath = "/path/to/csv/file.csv";

        URLConnection connection = new URL(url).openConnection();
        connection.setDoOutput(true);
        connection.setRequestProperty("Content-Type", "multipart/form-data");

        try (OutputStream outputStream = connection.getOutputStream();
             FileInputStream fileInputStream = new FileInputStream(filePath)) {
            byte[] buffer = new byte[4096];
            int bytesRead;
            while ((bytesRead = fileInputStream.read(buffer)) != -1) {
                outputStream.write(buffer, 0, bytesRead);
            }
        }

        int responseCode = ((HttpURLConnection) connection).getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            System.out.println("File uploaded successfully");
        } else {
            System.out.println("File upload failed");
        }
    }
}