Struts实现图片上传

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.y235.web.struts.action; import java.io.FileOutputStream; import java.text.SimpleDateFormat; import java.util.Date; import javax.servlet.ServletContext; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; import org.apache.struts.upload.FormFile; import com.y235.web.struts.form.GoodsForm; /** * MyEclipse Struts * Creation date: 09-26-2008 * * XDoclet definition: * @struts.action path="/goods" name="goodsForm" parameter="op" scope="request" validate="true" */ public class GoodsAction extends DispatchAction { /* * Generated Methods */ /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward doAdd(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { GoodsForm goodsForm = (GoodsForm) form;// TODO Auto-generated method stub FormFile picFile = goodsForm.getPicFile(); //得到唯一的文件名 String fn = "uploadfiles/" + this.getUniqueName(picFile.getFileName()); //得到物理路径 ServletContext application = request.getSession().getServletContext(); String realPath = application.getRealPath("/" + fn); System.out.println(realPath); //保存 FileOutputStream os = new FileOutputStream(realPath); os.write(picFile.getFileData()); os.close(); //设置实体类的相关属性 goodsForm.getGoods().setPic(fn); System.out.println("保存至数据库的路径："+fn); //调用业务类对Goods类进行处理 response.getWriter().println("<img src='"+fn+"' >"); return null; } String getUniqueName(String oldName) { int dotIndex = oldName.lastIndexOf("."); String extName = ""; if( dotIndex >= 0 ) extName = oldName.substring(dotIndex); return df.format(new Date()) + extName; } static SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmssSSS"); }