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javaWeb之写一个最简单的servlet

1. 创建一个类servletTest2 继承HttpServlet类。

public class servletTest2 extends HttpServlet {    public servletTest2(){        super();    }    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp)            throws ServletException, IOException {        resp.setContentType("text/html");        PrintWriter out = resp.getWriter();        out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");        out.println("<HTML>");        out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");        out.println("  <BODY>");        out.print("    This is ");        out.print(this.getClass());        out.println(", using the GET method");        out.println("  </BODY>");        out.println("</HTML>");        out.flush();        out.close();    }    }

web.xml中增加servlet的定义

  <servlet>      <servlet-name>servletTest2</servlet-name>      <servlet-class>servletTest2</servlet-class>  </servlet>    <servlet-mapping>      <servlet-name>servletTest2</servlet-name>      <url-pattern>/test</url-pattern>  </servlet-mapping>

例如项目名是test,运行tomcat,打开浏览器访问地址:http://127.0.0.1:8080/test/test

显示如下:

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javaWeb之写一个最简单的servlet