1、上傳的文件名如果是中文，那么上傳后就是亂碼
<!-- upload.html --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action=".\jsp\smartupload_demo01.jsp" method="post" enctype="multipart/form-data"> 請選擇要上傳的文件：<input type="file" name="pic"> <input type="submit" value="上傳"> </form> </body> </html> <!-- upload.jsp --> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="com.jspsmart.upload.SmartUpload" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <% String rootPath = application.getRealPath("/"); // System.out.println(rootPath); // @Debug SmartUpload smart = new SmartUpload() ; smart.initialize(pageContext) ; // 初始化上傳操作 smart.upload() ; // 上傳准備 smart.save(rootPath + "\\upload") ; // 文件保存 %> </body> <h2>上傳成功，<a href="..\smartupload_demo01.html">返回</a></h2> </html>
2、如果是如下這種情況，獲取的String parameter "name"也是亂碼（輸入中文的話）
upload.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ page import="com.jspsmart.upload.SmartUpload" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Insert title here</title> </head> <body> <% request.setCharacterEncoding("UTF-8") ; %> <% String rootPath = application.getRealPath("/"); // System.out.println(rootPath); // @Debug SmartUpload smart = new SmartUpload() ; smart.initialize(pageContext) ; // 初始化上傳操作 smart.upload() ; // 上傳准備 String name = smart.getRequest().getParameter("uname"); // System.out.println(name); // @Debug SmartUpload smart.save(rootPath + "\\upload") ; // 文件保存 %> <h2>上傳成功，<a href="..\smartupload_demo02.html">返回</a></h2> <h2>姓名：<%=name %></h2><br> <h2>request.getParameter("uname"): <%=request.getParameter("uname") %></h2> </body> </html>
upload.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action=".\jsp\smartupload_demo02.jsp" method="post" enctype="multipart/form-data"> 姓名：<input type="text" name="uname"><br> 照片：<input type="file" name="pic"><br> <input type="submit" value="上傳"> <input type="reset" value="重置"> </form> </body> </html>
因為使用SmartUpload需要對form使用enctype，導致數據按照純二進制的方式提交，因此會出現編碼問題，而SmartUpload本身的API又沒有提供對編碼的解決方案。
3、解決方案
使用如下代碼，完美解決：
SmartUpload smart = new SmartUpload() ; smart.setCharset("UTF-8"); // 或者你需要的編碼
搜了一下
一種是修改SmartUpload的源碼，讓SmartUpload內部解決編碼的轉換問題，自己編譯了再用
第二種就是選擇另一款上傳工具，比如fileupload
另外，采用JS或者別的方式來傳遞數據