JavaEE-Servlet的部署和配置

1、:配置好相应环境和检查tomcat8.5能否运行,详见https://www.cnblogs.com/LJHAHA/p/10461697.html

2、将tomcat8.5下的webapps目录中所有内容备份到另一文件夹(bak)中,再清空webapps目录;

3、进入eclipse,配置好相应环境后,进入Servers,点击下方红色圈处,将tomcat8.5集成到eclipse中;

JavaEE-Servlet的部署和配置

4.选择新建一个Apache下的Tomcat v8.5 Server--->Finish

JavaEE-Servlet的部署和配置

5.双击红色圈出的Tomcat v8.5 Server at localhost,进入上方的设计页面,其余的不做更改,需要将Server Locations改选为第二项Use Tomcat installation,同时检查下方路径是否正确,最好将Deploy path改为tomcat8.5下自带的webapps,最后别忘了点击保存;

JavaEE-Servlet的部署和配置

6.新建一个Dynamic Web Project(名为prj1),在Java Resources->src目录下新建一个包,名为edu.lsnu.first,在该包下新建一个HelloServlet类,编辑以下内容;

 1 package edu.lsnu.first;
 2 
 3 import java.io.IOException;
 4 import java.io.PrintWriter;
 5 
 6 import javax.servlet.Servlet;
 7 import javax.servlet.ServletConfig;
 8 import javax.servlet.ServletException;
 9 import javax.servlet.ServletRequest;
10 import javax.servlet.ServletResponse;
11 
12 public class HelloServlet implements Servlet{
13 
14     public static void main(String[] args) {
15     }
16 
17     @Override
18     public void destroy() {
19     }
20 
21     @Override
22     public ServletConfig getServletConfig() {
23         return null;
24     }
25 
26     @Override
27     public String getServletInfo() {
28         return null;
29     }
30 
31     @Override
32     public void init(ServletConfig arg0) throws ServletException {
33     }
34 
35     @Override
36     public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException {
37         response.setContentType("text/html;charset=utf-8");
38         PrintWriter out = response.getWriter();
39         out.print("<h1>欢迎光临</h1>");
40         out.close();
41     }
42 
43 }

7.接下来,再进入web->MEB_INF目录下,点开web.xml文件,编辑以下内容;JavaEE-Servlet的部署和配置

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <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">
 3   <display-name>prj1</display-name> 
 4   <servlet>
 5         <servlet-name>HelloServlet</servlet-name>
 6         <servlet-class>edu.lsnu.first.HelloServlet</servlet-class>
 7   </servlet>
 8 
 9   <servlet-mapping>
10         <servlet-name>HelloServlet</servlet-name>
11         <url-pattern>/hello</url-pattern>
12   </servlet-mapping>
13 
14   <welcome-file-list>
15     <welcome-file>index.html</welcome-file>
16     <welcome-file>index.htm</welcome-file>
17     <welcome-file>index.jsp</welcome-file>
18   </welcome-file-list>
19 </web-app>

 

编译器的最终布局显示如下:

JavaEE-Servlet的部署和配置

 

8.点击Tomcat v8.5 Server at localhost,右键选择Add and Remove...,将项目prj1添加到Tomcat中来;

JavaEE-Servlet的部署和配置

 9.启动服务器;

JavaEE-Servlet的部署和配置

成功后会显示下图情况

JavaEE-Servlet的部署和配置JavaEE-Servlet的部署和配置

10.最后在浏览器中输入http://127.0.0.1:8080/prj1/hello或http://localhost:8080/prj1/hello,回车即可出现网页 

 JavaEE-Servlet的部署和配置

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