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struts文件上傳- -

jsp代碼：

<html:form action="HtmlFile.do" method="post" enctype="multipart/form-data">

select file:

<html:file property="file"/>

<html:submit/>

</html:form>

Form代碼:

private FormFile file;

public FormFile getFile(){return this.file;}

public void setFile(FormFile file){this.file=file;}

Action代碼：

String dir=servlet.getServletContext().getRealPath("/upload");

HtmlFileForm hff = (HtmlFileForm)form;

FormFile file = hff.getFile();

if(file==null){

    return mapping.findForward("success");

}

String  fname = file.getFileName();

String size = Integer.toString(file.getFileSize()+"bytes");

InputStream in = file.getInputStream();

OutputStream out = new FileOutputStream(dir+"/"+fname);

int bytesRead = 0;

byte[] buffer = new byte[8192];

while(bytesRead = in.read(buffer,0,8192)!=-1){

out.write(buffer,0,bytesRead);

}

out.close();

in.close();