问题描述
我正在尝试在我的Corda应用程序中添加上传附件，但由于我在启动时遇到错误而无法正常工作.
I'm trying to add upload attachment in my Corda application but it's not working as I'm getting below error at start up itself.
下面是代码-
@Path("upload")
@POST
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile(@DefaultValue("") @FormDataParam("tags") String tags,
@FormDataParam("file") InputStream file,
@FormDataParam("file") FormDataContentDisposition fileDisposition) {
String fileName = fileDisposition.getFileName();
saveFile(file, fileName);
String fileDetails = "File saved at " + UPLOAD_FOLDER + " " + fileName + " with tags "+ tags;
System.out.println(fileDetails);
return Response.ok(fileDetails).build();
}
private void saveFile(InputStream file, String name) {
try {
/* Change directory path */
java.nio.file.Path path = FileSystems.getDefault().getPath(UPLOAD_FOLDER + name);
/* Save InputStream as file */
Files.copy(file, path);
} catch (IOException ie) {
ie.printStackTrace();
}
}
我搜索了错误，发现我们需要启用/重新设置MultiPartFeature.
I searched on error and found that we need to enable/resgiter MultiPartFeature.
无论我发现什么链接，他们都在谈论更改web.xml或添加AppCong，但我不确定在Corda示例项目中如何完成.
Whatever link I found they talk about changing web.xml or adding AppCong and I'm Not sure how it can be done in Corda sample project.
Corda团队请帮忙.
Corda team please help.
推荐答案
内置节点的Web服务器具有用于上传附件的默认端点/upload/*.该端点是现成可用的，不需要在您的API中添加.您通过向此终结点发出POST请求，并使用编码类型multipart/form-data来上传附件.
The built-in node webserver has a default endpoint for uploading attachments, /upload/*. This endpoint is available out-of-the-box and does not need to be added in your API. You upload an attachment by making a POST request to this endpoint with the encoding type multipart/form-data.
例如:
<form action="/upload/attachment" method="post" enctype="multipart/form-data">
<div class="form-group">
<input type="file" name="jar" class="form-control">
</div>
<br>
<button type="submit" class="btn btn-default">Upload blacklist</button>
</form>
您不能提供自己的其他端点来上传附件.
You cannot provide your own additional endpoints for uploading attachments.
如果您编写自己的节点网络服务器(例如 Spring网络服务器)，则有没有限制.
If you write your own node webserver (e.g. a Spring webserver), then there are no limitations.
这篇关于Corda附件上传的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！