Servlet快速入门

步骤：

• 创建web项目，导入Servlet依赖坐标

  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
  </dependency>
  

• 创建：定义一个类，实现Servlet接口，并重写接口中所有方法，并在service方法中输入一句话。

  public class ServletDemo1 implements Servlet{
  public void service(){)
  }
  

• 配置：在类上使用@WebServlet注解，配置该Servlet的访问路径

  @WebServlet("/demo1")
  public class ServletDemo1 implements Servlet{
  }
  

• 访问：启动Tomcat，浏览器输入URL访问该Servlet
  http://localhost:8080/web-demo/demo1

package com.charley;

import javax.servlet.*;
import javax.servlet.annotation.WebServlet;
import java.io.IOException;

@WebServlet("/demo1")
public class ServletDemo1 implements Servlet {
    @Override
    public void init(ServletConfig servletConfig) throws ServletException {

    }

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

    @Override
    public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
        System.out.printf("This is servlet test");
    }

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

    @Override
    public void destroy() {

    }
}