tomcat部署java

java文件

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import java.io.*;
import jakarta.servlet.*;
import jakarta.servlet.http.*;

public class hello extends HttpServlet {

    public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println("<h1>hello</h1>");
    }
}

编译

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javac -d . -classpath E:\javalib\apache-tomcat-10.0.8\lib\servlet-api.jar .\hello.java

E:\javalib\apache-tomcat-10.0.8 切换为自己的tomcat目录

创建文件夹

在E:\javalib\apache-tomcat-10.0.8\webapps中创建

大概就是这个样子

E:\javalib\apache-tomcat-10.0.8 切换为自己的tomcat目录

hello.class 是编译生成的

web.xml如下

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<?xml version="1.0" encoding="UTF-8"?>
<web-app>
    <servlet>
        <servlet-name>hello</servlet-name>
        <servlet-class>hello</servlet-class>
    </servlet>
	
    <servlet-mapping>
        <servlet-name>hello</servlet-name>
        <url-pattern>/hello</url-pattern>
    </servlet-mapping>
	
</web-app>

最后访问http://127.0.0.1:8080/first/hello