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UploadServlet 서블릿을 Apache Tomcat 8.0.14를 통해 컴파일하려고합니다. 내 web.xml을 잘하고 UploadServlet.java 제대로 컴파일했지만 시도가 실행 아직 때 내가 @로 오류java.lang.ClassNotFoundException : org.apache.commons.fileupload.FileItemFactory
ERROR
HTTP Status 500 - Error instantiating servlet class UploadServlet
exception
javax.servlet.ServletException: Error instantiating servlet class UploadServlet
root cause
java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory
root cause
java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileItemFactory
UploadServlet.java
import java.io.*;
import java.util.*;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.output.*;
public class UploadServlet extends HttpServlet {
private boolean isMultipart;
private String filePath;
private int maxFileSize = 50 * 1024;
private int maxMemSize = 4 * 1024;
private File file ;
public void init(){
filePath = getServletContext().getInitParameter("file-upload");
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
isMultipart = ServletFileUpload.isMultipartContent(request);
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
if(!isMultipart){
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet upload</title>");
out.println("</head>");
out.println("<body>");
out.println("<p>No file uploaded</p>");
out.println("</body>");
out.println("</html>");
return;
}
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(maxMemSize);
factory.setRepository(new File("C:\\apache-tomcat-8.0.14\\temp"));
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setSizeMax(maxFileSize);
try{
List fileItems = upload.parseRequest(request);
Iterator i = fileItems.iterator();
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet upload</title>");
out.println("</head>");
out.println("<body>");
while (i.hasNext())
{
FileItem fi = (FileItem)i.next();
if (!fi.isFormField())
{
String fieldName = fi.getFieldName();
String fileName = fi.getName();
String contentType = fi.getContentType();
boolean isInMemory = fi.isInMemory();
long sizeInBytes = fi.getSize();
System.out.println(fileName);
if(fileName.lastIndexOf("\\") >= 0)
{
file = new File(filePath +
fileName.substring(fileName.lastIndexOf("\\"))) ;
}
else
{
file = new File(filePath +
fileName.substring(fileName.lastIndexOf("\\")+1)) ;
}
fi.write(file) ;
out.println("Uploaded Filename: " + fileName + "<br>");
}
}
out.println("</body>");
out.println("</html>");
}catch(Exception ex) {
System.out.println(ex);
}
}
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, java.io.IOException {
throw new ServletException("GET method used with " +
getClass().getName()+": POST method required.");
}
}
클래스 경로에 클래스 org.apache.commons.fileupload.FileItemFactory가 없습니다. Maven을 사용하여 프로젝트를 빌드하고 있습니까? – maslan
나는 무엇이 녀석인지 모른다. 참고로 저는 숭고한 텍스트 편집기 – saikumarm
을 사용하여 커먼즈를 컴파일하는 동안 사용했던 모든 항아리를 사용하고 있으며 배포 도중에 추가합니다. –