Question

我想在Wicket中使用AJAX上传文件。在我看来，Wicket不支持此功能。有可能吗？

Answer 1

查看上传的Wicket示例中的源代码：http://www.wicketstuff.org/wicket13/upload/single。它有标准和ajax版本的示例。

Answer 2

作为对旧问题的更新，现在似乎有可能：

http://www.wicket-library.com/wicket-examples/ajax/upload

Answer 3

这种方法适用于我使用完整的Ajax wicket应用程序。对不起，这是Scala语法，但应该可以轻松转换回Java语法：

import java.io.File
import org.apache.wicket.markup.html.form.upload.FileUploadField
import org.apache.wicket.markup.html.form.Form
import org.apache.wicket.markup.html.WebPage
import org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink
import org.apache.wicket.ajax.AjaxRequestTarget

class TestPage extends WebPage {
    val uploadForm = new Form("form")
    val fileField = new FileUploadField("file")

    uploadForm.add(fileField)
    add(form)

    add(new AjaxSubmitLink("submit", uploadForm) {
        def onSubmit(target: AjaxRequestTarget, form: Form[_]) {
            val upload = fileField.getFileUpload
            if (upload != null) {
                val file: File = upload.writeToTempFile
            }
        }
    })
}

HTML：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:wicket="http://wicket.apache.org/dtds.data/wicket-xhtml1.4-strict.dtd">
<body>

<form wicket:id="form">
    <input wicket:id="file" type="file"/>
</form>
<button wicket:id="submit">Upload</button>

</body>
</html>

使用Wicket上传文件AJAX

3 个答案: