index.jsp
<%@taglib prefix="s" uri="/struts-tags" %>
<html>
<head><title>Struts2 File Upload Example</title></head>
<body>
<s:actionerror/>
<s:fielderror/>
<s:form action="UploadMyFile" enctype="multipart/form-data" method="POST">
<s:file name="uploadFile" label="Please select a file to upload"></s:file>
<s:submit></s:submit>
</s:form>
</body>
</html>struts.xml
<action name="UploadMyFile" class="com.pablomonteserin.action.FileUploadAction">
<interceptor-ref name="defaultStack">
<param name="fileUpload.allowedTypes">text/plain,image/png,image/gif,image/jpeg</param>
<param name="fileUpload.maximumSize">200000</param>
</interceptor-ref>
<result name="success">/uploadedFile.jsp</result>
</action>FileUploadAction.java
//Habría que poner los getters y setters de fileSize(long), uploadFileFileName(String) y uploadFile(File)
public String execute() throws Exception {
String filePath = "/home/monty/Desktop/"+uploadFileFileName;
File newFile = new File(filePath);
FileUtils.copyFile(uploadFile, newFile);
return SUCCESS;
}combobox tag
<s:form>
Para que funcione correctamente, el combobox debe estar dentro de un formulario, ya que dicho formulario será referenciado en el código javascript que genera la etiqueta
<s:combobox label="My Favourite Color" name="myFavouriteColor" list="#{'red':'red','green':'green','blue':'blue'}" headerKey="-1" headerValue="--- Please Select ---" emptyOption="true" value="green" />
<s:combobox label="Personas" name="persona" list="personas" headerKey="-1" headerValue="--- Please Select ---" listValue="nombre" listKey="id" emptyOption="true" value="Juan" />
</s:form>