运行servlet显示错误 [英] Running servlet shows error
本文介绍了运行servlet显示错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在eclipse中的Java文件中编写了以下代码，并查看了教程.当我尝试在服务器上运行它时，会显示
I wrote following codes in the java file in eclipse seeing a tutorial. When I try to run this on the server it shows me
Http: 404 error
Type Status Report
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists
我的代码是
package com.shaby.newservletdemo;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class servletInterface implements Servlet{
ServletConfig servletConfig= null;
@Override
public void destroy() {
// TODO Auto-generated method stub
System.out.println("Servlet Destroyed.");
}
@Override
public ServletConfig getServletConfig() {
// TODO Auto-generated method stub
return servletConfig;
}
@Override
public String getServletInfo() {
// TODO Auto-generated method stub
return "Version 1. 2016-2019";
}
@Override
public void init(ServletConfig arg0) throws ServletException {
// TODO Auto-generated method stub
this.servletConfig= arg0;
System.out.println("Servlet Initialized");
}
@Override
public void service(ServletRequest arg0, ServletResponse arg1) throws ServletException, IOException {
// TODO Auto-generated method stub
arg1.setContentType("text/html");
PrintWriter pw= arg1.getWriter();
pw.println("<html><body>");
pw.println("Hello Service has been done!!");
pw.println("</body></html>");
}
}
执行部分是否存在任何问题，或者我缺少某些东西? 我正在Eclipse IDE上运行它. 我正在使用Tomcat 9服务器.
Is there any problem in the execution part or Am i missing something?? I am running this on Eclipse IDE. I am using Tomcat 9 server.
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>servletsdemo</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>servletInterface</servlet-name>
<servlet-class>servletInterface</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>servletInterface</servlet-name>
<url-pattern>/servletInterface</url-pattern>
</servlet-mapping>
</web-app>
推荐答案
您是否配置了web.xml?
Do you have your web.xml configured?
应该有类似的东西
<servlet-mapping>
<servlet-name>servletInterface</servlet-name>
<url-pattern>/servletInterface</url-pattern>
</servlet-mapping>
在其中.
此外，您可能应该扩展HttpServlet而不是Servlet.
Also, you should probably extend HttpServlet instead of Servlet.
这篇关于运行servlet显示错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
