Struts2 文件上传 - 未找到依赖项的映射

Question

我正在使用 Struts 2.3.20.1 与 Commons 文件上传 1.3.1 和 Commons IO 2.4 上传 (CSV) 文件。当我尝试上传时，服务器日志中出现此错误：

ERROR [io.undertow.request] (default task-24) UT005023: Exception handling request to /private/createDatasetFromCSV: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.RuntimeException: com.opensymphony.xwork2.inject.DependencyException: com.opensymphony.xwork2.inject.ContainerImpl$MissingDependencyException: No mapping found for dependency [type=java.lang.String, name='struts.multipart.bufferSize'] in public void org.apache.struts2.dispatcher.multipart.JakartaStreamMultiPartRequest.setBufferSize(java.lang.String).

我遵循官方指南 here，创建 Action class，使用 JSP 表单标签等等。在 struts.xml 中，对于文件上传部分，我有：

 <constant name="struts.multipart.maxSize"     value="209715200" /> 
 <constant name="struts.multipart.parser"        value="jakarta-stream" />

Answer 1

Struts 的版本由于 WW-4466 应更新。

With WW-3025 there was a new config constant introduced: struts.multipart.bufferSize

Currently it is set as required and hence applications must specify it. The default value is always overridden.

-> should be required = false

Fix Version/s: 2.3.24

Struts2 文件上传 - 未找到依赖项的映射

Struts2 file upload - No mapping found for dependency

struts2

file-upload

apache-commons-fileupload