eclipse+tomcat+httpServlet初学

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

1.在eclipse中配置tomcat，参考上一边文章，建立的web项目tomcatWeb目录结构

2.添加Servlet处理类

3. 实现doGet()与doPost()方法：

<span style="font-size:18px;">public class HttpServletDemo extends HttpServlet {

	/**

	 *

	 */

	private static final long serialVersionUID = 4230239235404655360L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws IOException {

		response.setContentType("text/html;charset=GB2312");

		PrintWriter printWriter = response.getWriter();

		// printWriter.print("hello, china");

		String title = "HelloServlet";

		String heading1 = "HelloServlet的doGet方法的输出：";

		printWriter = response.getWriter();

		printWriter.print("<HTML><HEAD><TITLE>" + title + "</TITLE>");

		printWriter.print("</HEAD><BODY>");

		printWriter.print(heading1);

		printWriter.println("<h1><p>:您好</h1>");

		printWriter.print("</body></HTML>");

		printWriter.write("");

		printWriter.flush();

		printWriter.close();

	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)

			throws IOException {

		doGet(request, response);

	}

}</span>

4. 在web.xml中配置servlet

<span style="font-size:18px;"> <servlet>

    <servlet-name>TomcatWeb</servlet-name>

    <servlet-class>tomcat.servlet.HttpServletDemo</servlet-class>

  </servlet>

  <servlet-mapping>

    <servlet-name>TomcatWeb</servlet-name>

    <url-pattern>/servlet/HttpServletDemo</url-pattern>

  </servlet-mapping></span>

5. 用配置好的tomcat容器运行该web项目

方式1：右击项目--run as - run on server - 选择配置好的tomcat容器

方式2：右击运行