struts2漏洞爆發,近日修補漏洞,struts2.3.4.1升級到struts2.3.15.1,發現之前用uploadFile能正常上傳文件顯示進度條如今不能正常工做了,List items = upload.parseRequest(request),items爲空,得不到HttpServletRequest值了。
研究了一天,也在網上轉了一天,終於獲得靈感,查看了一下struts2.3.15.1的struts-default.xml配置文件,發現<constant name="struts.multipart.handler" value="jakarta" />已經變成了parser,在原來的項目中把struts.multipart.handler換成了struts.multipart.parser,一切OK,正常了。
配置完成了,就能夠直接利用uploadFile中的監聽器來完成文件上傳進度的判斷了和上傳文件了。
這是struts2.3.15.1的默認配置
<bean type="org.apache.struts2.dispatcher.multipart.MultiPartRequest" name="struts" class="org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest" scope="default"/>
<bean type="org.apache.struts2.dispatcher.multipart.MultiPartRequest" name="jakarta" class="org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest" scope="default" />
<constant name="struts.multipart.parser" value="jakarta" />
Struts2 中用Fileupload上傳文件得不到HttpServletRequest值的解決辦法
在status2 .3.4.1的配置方式
在status2 .3.4.1的配置文件里加上
<bean type= "org.apache.struts2.dispatcher.multipart.MultiPartRequest"
name= "myRequestParser" class= "com.icf.common.base.actions.RequestParseWrapper"
scope= "default" optional= "true " />
<constant name= "struts.multipart.handler" value= "myRequestParser" />
class
public class RequestParseWrapper extends JakartaMultiPartRequest {
publicvoid parse(HttpServletRequest servletRequest, String saveDir)throws IOException{
}
}
這樣就能夠獲得request裏的item的值了。
struts2.3.15.1的配置方式
在struts2.3.15.1後的配置裏,struts2的struts-default.xml 裏把
struts.multipart.handler 改爲了
struts.multipart.parser
在struts配置文件中
<bean type= "org.apache.struts2.dispatcher.multipart.MultiPartRequest"
name= "myRequestParser" class= "com.icf.common.base.actions.RequestParseWrapper"
scope= "default" optional= "true " />
<constant name= " struts.multipart.parser" value= "myRequestParser" />
class
public class RequestParseWrapper extends JakartaMultiPartRequest {
publicvoid parse(HttpServletRequest servletRequest, String saveDir)throws IOException{
}
}
下面的片段Class是利用spring mvc作的一個上傳文件Controller中的一個方法
@RequestMapping(value="/uploadFile",method=RequestMethod.POST)
public void uploadFile(HttpServletRequest req,HttpServletResponse resp) {
final HttpSession session = req.getSession();
String path = session.getServletContext().getRealPath("/");
File file = new File(path + "/upload");
if(!file.exists()) file.mkdirs();
boolean isMultipart = ServletFileUpload.isMultipartContent(req);
if (!isMultipart) return;
// Create a factory for disk-based file items
FileItemFactory factory = new DiskFileItemFactory();
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
//上傳文件大小最大不能超過60M
upload.setFileSizeMax(60000000);
upload.setHeaderEncoding("UTF-8");
upload.setProgressListener(new ProgressListener() {
@Override
public void update(long pBytesRead, long pContentLength, int pItems) {
ProcessInfo pri = new ProcessInfo();
pri.itemNum = pItems;
pri.readSize = pBytesRead;
pri.totalSize = pContentLength;
pri.show =((float)pBytesRead/1000)+"/"+((float)pContentLength/1000)+" Kbyte";
pri.rate = Math.round((float)pBytesRead/(float)pContentLength*100);
session.setAttribute("proInfo", pri);
try {
Thread.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("已經上傳 " +pri.rate);
}
} );
List<FileItem> items;
try {
items = upload.parseRequest(req);
System.out.println("===========================================");
for(FileItem item: items) {
System.out.println("ContentType "+ item.getContentType());
System.out.println(" 字段名 " + item.getFieldName());
System.out.println("文件名 "+item.getName());
System.out.println("文件大小 " + item.getSize());
item.write(new File(file,item.getName()));
}
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}