MultipartServletWebRequest.getFiles()返回空映射

时间:2015-06-04 12:03:28

标签: java wicket

在Wicket 1.5中,我们以这种方式处理了上传的文件:

public UploadValuePage(PageParameters parameters) {
    super(parameters);
    Bytes maxSize = Bytes.kilobytes(20000);
    ServletWebRequest swr = (ServletWebRequest) getRequest();
    MultipartServletWebRequest mswr = swr.newMultipartWebRequest(maxSize, "uploadId");
    FileItem item = mswr.getFile("fileInput").get(0);
    // process item
}

但是在迁移到Wicket 6 之后,地图中没有文件。为什么呢?

1 个答案:

答案 0 :(得分:1)

在网上搜索后我发现了这个:
http://wicketinaction.com/2012/11/uploading-files-to-wicket-iresource/

所以我们需要额外的一行,因为 Wicket 6.18.0

public UploadValuePage(PageParameters parameters) {
    super(parameters);
    Bytes maxSize = Bytes.kilobytes(20000);
    ServletWebRequest swr = (ServletWebRequest) getRequest();
    MultipartServletWebRequest mswr = swr.newMultipartWebRequest(maxSize, "uploadId");
    mswr.parseFileParts(); // since Wicket 6.18.0
    FileItem item = mswr.getFile("fileInput").get(0);
    // process item
}