令人费解的连接，你遇到过吗？

中文文件名保存的时候一般要转一下
file.saveAs(new String(file.getFileName().getBytes(),"gb2312"));
还有href可以带中文的～

解决方案 »

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下载的时候不用别的类，你直接在JSP中写就行了
      java.io.File file = new File(fileName);
      InputStream input = new FileInputStream(file);
      int len=0;
      byte[] b=new byte[256];
      response.setContentType("application/octet-stream; charset=gb2312");
      response.addHeader("Content-Disposition","attachment; filename=" + fileName);
        OutputStream output = response.getOutputStream();
        while((len=input.read(b))!=-1){
               output.write(b,0,len);
        }
        input.close();
        output.close();
        return;
谢了，各位！我的这个上传下载是在jspsmart网站下载的class文件。
上传成功了，无论是传后的文件名，还是存在数据库的该文件名都正确，就是在下载连接的时候找不到文件：（
accp(accp) ——谢谢你，我马上试试！另外我的<a href="中文网页.htm">...</a>连接不好用不知道你们还能不能看到这个贴子，下午我一直上不了csdn，现在才爬上来：（
down.jsp文件代码：（bean是原来用的）<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.io.*"%>
<%@ page import="java.io.File"%>
<%@ page language="java" import="com.jspsmart.upload.*"%><jsp:useBean id="mySmartUpload" scope="page" class="com.jspsmart.upload.SmartUpload"/>
<html>
<head><title></title>
</head>
<body>
<%
String fileName="";
fileName=request.getParameter("downFile");
fileName =new String(fileName.getBytes("ISO8859_1"),"GBK");
//fileName =fileName+"人月神话.pdf";
out.println("fileName:"+fileName);java.io.File file = new File(fileName);
      InputStream input = new FileInputStream(file);
      int len=0;
      byte[] b=new byte[256];
      response.setContentType("application/octet-stream; charset=gb2312");
      response.addHeader("Content-Disposition","attachment; filename=" + fileName);
        OutputStream output = response.getOutputStream();
        while((len=input.read(b))!=-1){
               output.write(b,0,len);
        }
        input.close();
        output.close();
        //return;
//filename="/xzzx/file/人月神话.pdf";
// Initialization
//mySmartUpload.initialize(pageContext);
// Download file
//out.println(filename);
//mySmartUpload.downloadFile(fileName);
// With a physical path
//mySmartUpload.downloadFile("c:\\temp\\sample.zip")
// With options
// mySmartUpload.downloadFile("/wdgzq/upload/test.zip","application/x-zip-compressed","downloaded.zip")
%>
</body>
</html>
另外我的<a href="中文网页.htm">...</a>连接不好用
_________________________
怎么会呢?我这样的都没问题<a href="+ 河南省经济贸易委员会 +.htm">勒克司大家发</a>
不过我还是从没用中文作文件名的～
错误信息：
取到的fileName应该是/xzzx/file/人月神话.pdf ，但却是/xzzx/file，即使人为加上/人月神话.pdf 也是找不到，难道真是服务器不支持？？我用的是alpha，jdk1.3 (alpha版本),tomcat3.1。能不能解决哦.Error: 500
Location: /web/down.jsp
Internal Servlet Error:javax.servlet.ServletException: /xzzx/file (No such file or directory)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java, Compiled Code)
at _0002fdown_0002ejspdown_jsp_15._jspService(_0002fdown_0002ejspdown_jsp_15.java, Compiled Code)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java, Compiled Code)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java, Compiled Code)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java, Compiled Code)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java, Compiled Code)
at java.lang.Thread.run(Thread.java:484)Root cause:
java.io.FileNotFoundException: /xzzx/file (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java, Compiled Code)
at java.io.FileInputStream.(FileInputStream.java, Compiled Code)
at _0002fdown_0002ejspdown_jsp_15._jspService(_0002fdown_0002ejspdown_jsp_15.java, Compiled Code)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java, Compiled Code)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java, Compiled Code)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java, Compiled Code)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java, Compiled Code)
at java.lang.Thread.run(Thread.java:484)
要用绝对路径，不能用相对路径～
如果你是在web的根目录下放着，这样
String fileName = application.getRealPath("/xzzx/file/人月神话.pdf");
File file = new File(fileName);
我刚才正在试，不过不行，而且换了一台linux服务器，也不行。还请问：我的上传中文文件就好使，但下载为什么不好用呢。谢谢
我本来把文件存储路径存在数据库中了，取出来以后，传到down.jsp页面，得到的路径确不全，缺少中文文件名的部分，就像上个错误。我又干脆把绝对路径写到fileName，还是不行啊，错误如下：
Error: 500
Location: /web/down.jsp
Internal Servlet Error:javax.servlet.ServletException: /home/java/jakarta-tomcat/webapps/ROOT/xzzx/file/人月神话.pdf (No such file or directory)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java, Compiled Code)
at _0002fdown_0002ejspdown_jsp_27._jspService(_0002fdown_0002ejspdown_jsp_27.java, Compiled Code)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java, Compiled Code)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java, Compiled Code)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java, Compiled Code)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java, Compiled Code)
at java.lang.Thread.run(Thread.java:484)Root cause:
java.io.FileNotFoundException: /home/java/jakarta-tomcat/webapps/ROOT/xzzx/file/人月神话.pdf (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java, Compiled Code)
at java.io.FileInputStream.(FileInputStream.java, Compiled Code)
at _0002fdown_0002ejspdown_jsp_27._jspService(_0002fdown_0002ejspdown_jsp_27.java, Compiled Code)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java, Compiled Code)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java, Compiled Code)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java, Compiled Code)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java, Compiled Code)
at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Ajp12ConnectionHandler.java, Compiled Code)
at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java, Compiled Code)
at java.lang.Thread.run(Thread.java:484)
那你就到服务器看一下到底有没有这个文件呀
/home/java/jakarta-tomcat/webapps/ROOT/xzzx/file/人月神话.pdf
有的话文件名正确不正确，
再者如果你把文件存到数据库中了，下载的时候从数据库中取出直接传给下载页面下载就行了