A jsp webpage demo (product addition)
①First, there is a form submission on the addgoods page
<form action="doaddgoods.jsp" method="post" enctype="multipart/form-data">（设为二进制）
<li>商品名称：<input type="text" name="gname"> </li>
<li>商品价格：<input type="text" name="gprice"> </li>
<li>商品描述：<input type="text" name="ginfo"> </li>
<p>
<label> 商品图片 </label>
<input name="file" type="file" class="opt_input" />
</p>
<input type="submit" value="提交" class="opt_sub" />
<input type="reset" value="重置" class="opt_sub" />
</form>
②Add goods on the doaddgoods page (pay attention to importing the smartuploadjar package)
//Instantiate a smartUpload object
SmartUpload su=new SmartUpload(); su.initialize(pageContext); //Set the file types allowed to upload su.setAllowedFilesList("jpg,png,gif,txt,doc"); //Set File types that are prohibited from uploading su.setDeniedFilesList("exe,bat,js,jsp,css"); //Limit the size of uploaded files su.setMaxFileSize(1024*1024*3); //Set the encoding format su.setCharset(" utf-8"); //Start uploading memory su.upload(); String path="images\\"; File file=su.getFiles().getFile(0); if(!file.isMissing()){ file.setCharset("utf-8"); path+=file.getFileName(); file.saveAs(path,SmartUpload.SAVE_VIRTUAL); } //Receive the value in turn Request req=su.getRequest(); (to import under smartupload request method)
String gname=req.getParameter("gname");
String gprice=req.getParameter("gprice");
String ginfo=req.getParameter("ginfo");
IGoodsBiz ib=new GoodsBiz();
Goods g=new Goods(gname,Integer.parseInt(gprice),ginfo,path);
int n=ib.addgoods(g);
if(n>0){
out.print("<script>alert('添加商品成功');location.href='/p4/admin.jsp';</script>");
}
else{
out.print("<script>alert('添加商品失败');location.href='/p4/addgoods.jsp';</script>");
}