```package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.util.*;
public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory();
private static java.util.List _jspx_dependants;
private javax.el.ExpressionFactory _el_expressionfactory;
private org.apache.AnnotationProcessor _jsp_annotationprocessor;
public Object getDependants() {
return _jspx_dependants;
}
public void _jspInit() {
_el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
_jsp_annotationprocessor = (org.apache.AnnotationProcessor) getServletConfig().getServletContext().getAttribute(org.apache.AnnotationProcessor.class.getName());
}
public void _jspDestroy() {
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;
try {
response.setContentType("text/html;charset=utf-8");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("\r\n");
out.write("\r\n");
out.write("\r\n");
out.write("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\r\n");
out.write("<html>\r\n");
out.write(" <head>\r\n");
out.write(" \r\n");
out.write(" \r\n");
out.write(" <title>My JSP 'index.jsp' starting page</title>\r\n");
out.write(" <script type=\"text/javascript\">\r\n");
out.write(" var attachname=\"attach\";\r\n");
out.write(" var i=1;\r\n");
out.write(" function addInput(){\r\n");
out.write(" if(i>0){\r\n");
out.write(" var attach=attachname+i;\r\n");
out.write(" if(createInput(attach))i=i+1;\r\n");
out.write(" }\r\n");
out.write(" }\r\n");
out.write(" function delInput(){\r\n");
out.write(" if(i>1){\r\n");
out.write(" i=i-1\r\n");
out.write(" if(!removeInput())i=i+1;\r\n");
out.write(" }\r\n");
out.write(" }\r\n");
out.write(" function createInput(nm){\r\n");
out.write(" var aElement=document.createElement(\"input\");\r\n");
out.write(" aElement.name=nm;\r\n");
out.write(" aElement.id=nm;\r\n");
out.write(" aElement.type=\"file\";\r\n");
out.write(" if(document.getElementById(\"upload\").appendChild(aElement)==null)return false;\r\n");
out.write(" return true;\r\n");
out.write(" }\r\n");
out.write(" function removeInput(nm){\r\n");
out.write(" var aElement=document.getElementById(\"upload\");\r\n");
out.write(" if(aElement.removeChild(aElement.lastChild)==null)return false;\r\n");
out.write(" return true;\r\n");
out.write(" }\r\n");
out.write(" </script>\r\n");
out.write(" </head>\r\n");
out.write(" \r\n");
out.write(" <body>\r\n");
out.write(" <form action=\"UpLoadServlet.action\" method=\"post\" enctype=\"multitype/form-data\">\r\n");
out.write(" 用户名<input type=\"text\" name=\"user_name\"/><br/>\r\n");
out.write(" 文件<input type=\"file\" value=\"上传文件\" /><br/>\r\n");
out.write(" <input type=\"button\" value=\"继续上传\" onclick=\"addInput()\"/><br/>\r\n");
out.write(" <input type=\"button\" value=\"删除文件\" onclick=\"delInput()\"/><br/>\r\n");
out.write(" <input type=\"submit\" value=\"确认\"/>\r\n");
out.write(" <span id=\"upload\"></span>\"\n");
out.write(" </form>\r\n");
out.write(" </body>\r\n");
out.write("</html>\r\n");
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
try { out.clearBuffer(); } catch (java.io.IOException e) {}
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
else log(t.getMessage(), t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is application/x-www-form-urlencoded
文件上传类型无效，请求不包含multipart/form-data或多重/混合流，内容类型标头是application/x-www-form-urlencoded
jsp页面怎么提交的
jsp文件如下：
```<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
<script type="text/javascript">
var attachname="attach";
var i=1;
function addInput(){
if(i>0){
var attach=attachname+i;
if(createInput(attach))i=i+1;
}
}
function delInput(){
if(i>1){
i=i-1
if(!removeInput())i=i+1;
}
}
function createInput(nm){
var aElement=document.createElement("input");
aElement.name=nm;
aElement.id=nm;
aElement.type="file";
if(document.getElementById("upload").appendChild(aElement)==null)return false;
return true;
}
function removeInput(nm){
var aElement=document.getElementById("upload");
if(aElement.removeChild(aElement.lastChild)==null)return false;
return true;
}
</script>
</head>
<body>
<form action="UpLoadServlet.action" method="post" enctype="multitype/form-data">
用户名<input type="text" name="user_name"/><br/>
文件<input type="file" value="上传文件" /><br/>
<input type="button" value="继续上传" onclick="addInput()"/><br/>
<input type="button" value="删除文件" onclick="delInput()"/><br/>
<input type="submit" value="确认"/>
<span id="upload"></span>"
</form>
</body>
</html>
文件上传，不管服务端使用什么技术 form中必须设置enctype="multitype/form-data" method="post"
我form中就是这样来设置的
控制台报错:org.apache.commons.fileupload.FileUploadBase$InvalidContentTypeException: the request doesn't contain a multipart/form-data or multipart/mixed stream, content type header is application/x-www-form-urlencoded
文件上传，要在form里写multitype那么
问题已经解决,谢谢各位