An error is as follows:

The project structure is as follows:

HelloServlet. Java

 package com. Zixue. Servlet. 

import java.io.IOException; 

The import javax.mail. Servlet. Servlet. 
The import javax.mail. Servlet. ServletConfig; 
import javax.servlet.ServletException; 
The import javax.mail. Servlet. ServletRequest; 
The import javax.mail. Servlet. ServletResponse; 

/* * 
* @ the ClassName: HelloServletDemo1 
* @ Description: introduction to the servlet program 
* @ author: sadfoo2019 
* @ date: March 2, 2020 morning 1:54:10 
* @ Copyright: 
*/
Public class HelloServlet implements the Servlet {

@ Override 
Public void destroy () {

} 

@ Override 
Public ServletConfig getServletConfig () {
return null; 
} 

@ Override 
Public String getServletInfo () {
return null; 
} 

@ Override 
Public void init (ServletConfig arg0) throws ServletException {

} 

/* * 
* used to handle the customer's request and response to the request of method 
*/
@ Override 
Public void service (ServletRequest request, ServletResponse response) throws ServletException, IOException {
//to the page output a hellServlet string 
The response. GetWriter (). Print (" Hello Servlet... "); 
} 

} 

Web.xml

 
<? The XML version="1.0" encoding="utf-8"?> 
XMLNS="http://java.sun.com/xml/ns/javaee" 
Xsi: schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
Id="WebApp_ID" version="2.5" & gt; 
 Test_TomcatServers & lt;/display - name> 
 
 Index. Html 
 Index. Htm 
 Index. Jsp 
 Default. Html 
 Default. Htm 
 Default. Jsp 
 

 
 HelloServlet 
 Com. Zixue. Servlet. HelloServlet 
 

 
 HelloServlet 
/aaa 
 
 

CodePudding user response:

Copy your code, no problem, can run, you can copy code into another bag to try,

CodePudding user response:

The

refer to the original poster Cheng Guo response:

an error is as follows:

Program is no problem, see if the project has joined the tomcat server, if not, you can add it, run to see again,

CodePudding user response:

Thank you, have been solved,