打开tomcat/conf/servel.xml
修改（黑体字为修改部分）
<Connector port="8080"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" URIEncoding="GBK"/>
在web页上把含有中文的url用java.net.URLEncoder.encode("中文")处理
例子：
<c:set var="test">
/<%=java.net.URLEncoder.encode("用jsp实现文件上传.pdf")%>
</c:set>
<c:redirect context="/ebooks" url="${test}"/>
链接传递中文参数例子：<a href=hello.jsp?send=<%=java.net.URLEncoder.encode("中文")%>> 点击</a>
jspsmartupload组件下载中文例子：
<%@ page contentType="text/html;charset=gb2312"
import="com.jspsmart.upload.*" %><%
SmartUpload mySmartUpload = new SmartUpload();
//String path=request.getParameter("中文");修改server.xml后
String path = new String(request.getParameter("中文").getBytes("ISO-8859-1")); //修改server.xml前
// Initialization
mySmartUpload.initialize(pageContext);
// Download file
//mySmartUpload.downloadFile("/upload/sample.zip");
// With a physical path
mySmartUpload.downloadFile(path);
response.getOutputStream().close();
// With options
// mySmartUpload.downloadFile("/upload/sample.zip","application/x-zip-compressed","downloaded.zip")
%>
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