java在使用预览，文件上传，

[qq_35231216]

HTTP Status 500 - Unable to compile class for JSP:
type Exception report

message Unable to compile class for JSP:

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: [16] in the generated java file: [D:\data\Eclipse\javaEclipses\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\ctcesims\org\apache\jsp\docUploadConvertAction_jsp.java]
Only a type can be imported. com.oreilly.servlet.MultipartRequest resolves to a package

An error occurred at line: [17] in the generated java file: [D:\data\Eclipse\javaEclipses\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\ctcesims\org\apache\jsp\docUploadConvertAction_jsp.java]
Only a type can be imported. com.oreilly.servlet.multipart.DefaultFileRenamePolicy resolves to a package

An error occurred at line: 19 in the jsp file: /docUploadConvertAction.jsp
MultipartRequest cannot be resolved to a type
16.//采用cos缺省的命名策略，重名后加1,2,3...如果不加dfp重名将覆盖
17.//DefaultFileRenamePolicy dfp = new DefaultFileRenamePolicy();
18.//response的编码为"UTF-8",同时采用缺省的文件名冲突解决策略,实现上传,如果不加dfp重名将覆盖
19.MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8",new DefaultFileRenamePolicy());
20: //MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8");
21.//输出反馈信息
22: Enumeration files = multi.getFileNames();


An error occurred at line: 19 in the jsp file: /docUploadConvertAction.jsp
MultipartRequest cannot be resolved to a type
16.//采用cos缺省的命名策略，重名后加1,2,3...如果不加dfp重名将覆盖
17.//DefaultFileRenamePolicy dfp = new DefaultFileRenamePolicy();
18.//response的编码为"UTF-8",同时采用缺省的文件名冲突解决策略,实现上传,如果不加dfp重名将覆盖
19.MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8",new DefaultFileRenamePolicy());
20: //MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8");
21.//输出反馈信息
22: Enumeration files = multi.getFileNames();


An error occurred at line: 19 in the jsp file: /docUploadConvertAction.jsp
DefaultFileRenamePolicy cannot be resolved to a type
16.//采用cos缺省的命名策略，重名后加1,2,3...如果不加dfp重名将覆盖
17.//DefaultFileRenamePolicy dfp = new DefaultFileRenamePolicy();
18.//response的编码为"UTF-8",同时采用缺省的文件名冲突解决策略,实现上传,如果不加dfp重名将覆盖
19.MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8",new DefaultFileRenamePolicy());
20: //MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8");
21.//输出反馈信息
22: Enumeration files = multi.getFileNames();

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:198)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:361)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:585)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

[qq_35231216]

导入了jar包，还是报这个错？ 页面代码

[verejava]

MVC 之 单文件上传 http://www.verejava.com/?id=1699040969622

[alunSemiconductor]

<dependency>    <groupId>tomcat</groupId>    <artifactId>servlet-api</artifactId>    <version>5.5.23</version>    <scope>provided</scope></dependency>

添加scope限制为provided