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淺談如何實現(xiàn)JSP上傳圖片無組件化
從JSP頁使圖片以JPEG編碼后存儲在指定文件夾中。這種JSP上傳圖片方式與組件上傳相比似乎笨拙而又不能對文件屬性進行操作，但的確可以輕松實現(xiàn)JSP上傳圖片的功能。
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uploadimage1.jsp實現(xiàn)構(gòu)建一個表單，提交用于為圖片重命名的參數(shù)，以及圖片文件。
- <%...@ page contentType="text/html; charset=gbk" %>
- <%...@ page language="java" %>
</strong>DATABASE<strong> TITLE></strong> </li> <li><strong><meta</strong> http-equiv="Content-Type" content="text/html; charset=gb2312"<strong>></strong> </li> <li><strong> HEAD></strong> </li> <li><strong><FORM</strong> METHOD=POST ACTION="uploadimage2.jsp"<strong>></strong> </li> <li>人物:<strong><INPUT</strong> TYPE="text" NAME="name"<strong>><BR></strong> </li> <li>圖片:<strong><INPUT</strong> TYPE="file" NAME="image"<strong>><BR></strong> </li> <li><strong><INPUT</strong> TYPE="submit" value="提交"<strong>></strong> </li> <li><strong> FORM></strong> </li> <li><strong> BODY></strong> </li> <li><strong> HTML></strong> </li> </ol></pre><p>uploadimage1.jsp實現(xiàn)獲取用戶提交參數(shù)為要存儲的圖片命名，以字符的形式獲取上傳的圖片，進一步轉(zhuǎn)化為輸入流，最終完成JSP上傳圖片的功能。</p><pre> <ol> <li><strong><</strong>%...@ page contentType="text/html;charset=gb2312"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="java.util.*"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="java.text.*"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="java.io.*"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="com.sun.image.codec.jpeg.*"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="java.awt.image.*"%<strong>></strong> </li> <li><strong><</strong>%...@ page import="java.awt.*"%<strong>></strong> </li> <li> </li> <li><strong><</strong>%... </li> <li> String name=request.getParameter("name"); </li> <li> name=new String(name.getBytes("ISO-8859-1")); </li> <li> String ima=request.getParameter("image"); </li> <li> </li> <li> try{ </li> <li> String path=request.getRealPath("/"); </li> <li> FileOutputStream ot = new FileOutputStream(path+name+".jpg"); </li> <li>// ServletOutputStream ot=response.getOutputStream(); //也可以直接輸出顯示 </li> <li> FileInputStream in=new FileInputStream(ima); </li> <li> JPEGImageDecoder jpgCodec = JPEGCodec.createJPEGDecoder(in); </li> <li> BufferedImage image = jpgCodec.decodeAsBufferedImage(); </li> <li> JPEGImageEncoder encoder=JPEGCodec.createJPEGEncoder(ot); </li> <li> encoder.encode(image); </li> <li> in.close(); </li> <li> ot.close(); </li> <li> out.print("JSP上傳圖片成功！<strong><BR></strong>"); </li> <li> //加載上傳成功的圖片 </li> <li> out.print("<strong><IMG</strong> width=200 height=200 src='"+name+".jpg' <strong>/></strong>"); </li> <li>} </li> <li>catch(Exception e) </li> <li>{ </li> <li>System.out.print(e.toString()); </li> <li>} </li> <li>%<strong>></strong> </li> </ol></pre><p>實現(xiàn)JSP上傳圖片無組件化就為大家介紹到這里。</p><p>【編輯推薦】</p><ol><li>淺談利用jspsmart實現(xiàn)文件上傳下載</li><li>使用JSP頁面生成PDF報表</li><li>JSP自定義標簽定義步驟</li><li>詳解測試JSP容器</li><li>介紹JSP HTTP服務(wù)器實現(xiàn)的以下特性</li></ol> <br> 新聞標題：淺談如何實現(xiàn)JSP上傳圖片無組件化 <br> 本文地址：<a href="http://m.5511xx.com/article/djhjceg.html">http://m.5511xx.com/article/djhjceg.html</a> </div> <div id="opb84s2" class="hot_new"> <div id="5qwv2c1" class="page_title clearfix"> <h3>其他資訊</h3> </div> <div id="x8fv899" class="news_list clearfix"> <ul> <li> <a 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