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Struts upload file Dynavalidatorform instance

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One, the relevant jar package
A jar package for an empty struts project:
Additional two jar packages for uploading files:

Second, the page

1. Upload page upload.jsp

1 <%@ Page Language="Java"ContentType="text/html; Charset=utf-8"2 pageencoding="Utf-8"%>3 <!DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd ">4 <HTML>5 <Head>6 <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">7 <title>Insert Title here</title>8 </Head>9 <Body>Ten <formAction= "Upload.do"Method= "POST"enctype= "Multipart/form-data"> One <inputtype= "File"name= "Upload_file"value=""ID= "Upload_file"style= "height:20px;"> A <inputtype= "Submit"ID= "Submitbutton"value= "Submit"> - </form> - </Body> the </HTML>

Note: A. The form form should have the attribute enctype= "Multipart/form-data".
B. Select file for upload file input Name property name= "Upload_file" to match Form-property name value under Form-bean below.

2, Struts-config.xml

1 <?XML version= "1.0" encoding= "Utf-8"?>2 3 <!DOCTYPE struts-config Public4 "-//apache software foundation//dtd Struts Configuration 1.3//en"5 "Http://struts.apache.org/dtds/struts-config_1_3.dtd">6 <Struts-config>7     <Form-beans>8         <Form-beanname= "Upload"9 type= "Org.apache.struts.validator.DynaValidatorForm">Ten             <Form-propertyname= "Upload_file"type= "Org.apache.struts.upload.FormFile" /> One         </Form-bean> A     </Form-beans> -  -     <action-mappings> the         <ActionPath= "/upload"type= "com. Uploadaction "name= "Upload" - Scope= "Request"> -             <forwardname= "sucess"Path= "/sucess.jsp"></forward> -         </Action> +     </action-mappings> -  +     <Plug-inClassName= "Org.apache.struts.validator.ValidatorPlugIn"> A         <Set-property Property= "Pathnames" at value= "/org/apache/struts/validator/validator-rules.xml, - /web-inf/validation.xml " /> -     </Plug-in> -  - </Struts-config>

Note: The Name property value of line 8th Form-bean is the same as the name value of line 15th action.

3, Uploadaction.java

1  Packagecom;2 3 ImportJava.io.BufferedOutputStream;4 ImportJava.io.File;5 Importjava.io.FileNotFoundException;6 ImportJava.io.FileOutputStream;7 Importjava.io.IOException;8 ImportJava.io.InputStream;9 Ten Importjavax.servlet.http.HttpServletRequest; One ImportJavax.servlet.http.HttpServletResponse; A  - Importorg.apache.struts.action.Action; - ImportOrg.apache.struts.action.ActionForm; the ImportOrg.apache.struts.action.ActionForward; - Importorg.apache.struts.action.ActionMapping; - ImportOrg.apache.struts.action.DynaActionForm; - ImportOrg.apache.struts.upload.FormFile; +  -  Public classUploadactionextendsAction { +  A      PublicActionforward Execute (actionmapping mapping, actionform form, at httpservletrequest request, httpservletresponse response) { -  -Dynaactionform DynaForm =(dynaactionform) Form; -         ////This upload_file corresponds to configure Form-property and JSP page to select file input -Formfile file = (formfile) dynaform.get ("Upload_file"); -          inString Loalpath =NULL; -String FilePath =NULL; to         if(File! =NULL&&!file.tostring (). Trim (). Equals ("")) { +Loalpath =file.getfilename (); -             Try { theInputStream in =File.getinputstream (); *                 intLength = 0; $String Path = This. Getservlet (). Getservletcontext (). Getrealpath ("/upload") + "\ \" +Loalpath;Panax NotoginsengFile OutFile =NewFile (path); -                 if(!Outfile.getparentfile (). exists ()) the outfile.getparentfile (). Mkdirs (); +                 if(Outfile.exists ()) { A Outfile.delete (); the                 } +Bufferedoutputstream out =NewBufferedoutputstream ( -                         NewFileOutputStream (OutFile)); $                 byte[] buffer =New byte[4096]; $                  while(length = in.read (buffer))! =-1) { -Out.write (buffer, 0, length); -                 } the in.close (); - out.close ();Wuyi System.out.println (filePath); the}Catch(FileNotFoundException e) { -                 //TODO auto-generated Catch block Wu e.printstacktrace (); -}Catch(IOException e) { About                 //TODO auto-generated Catch block $ e.printstacktrace (); -             } -         } -         returnMapping.findforward ("sucess"); A     } +  the}

Struts upload file Dynavalidatorform instance

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