@MultipartConfig
@WebServlet(name = "UpLoad", urlPatterns = {"/UpLoad"})
public class UpLoad extends HttpServlet {

 @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) {
     try {
            Part filePart = request.getPart("fileName"); // cannot find simbol
            InputStream filecontent = filePart.getInputStream();

.....
          } catch (IOException ex) {
            Logger.getLogger(UpLoad.class.getName()).log(Level.SEVERE, null, ex);
        }

    }
}

Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project tan: Compilation failure: Compilation failure:
Filter/UpLoad.java:[103,36] cannot find symbol
symbol:   method getPart(java.lang.String)
location: variable request of type javax.servlet.http.HttpServletRequest

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>4.0.0</version>
    <scope>provided</scope>
</dependency>