web03-OutputInfo

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新建web项目，web03-OutputInfo

新建servlet，OutputInfo.java

其内容为：、

public void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {

        resp.setContentType("text/html;charset=utf-8"); PrintWriter out=resp.getWriter(); Enumeration headNames=req.getHeaderNames(); out.println("<center>"); out.println("<table border=1 align=center>"); out.println("<caption>Servelet接收到的Http消息报头的信息</caption"); out.println("<tr bgcolor=#999999"); out.println("<th>消息报头的名字</th>"); out.println("<th>消息报头的值</th>"); out.println("</tr>"); while(headNames.hasMoreElements()) { String name=(String)headNames.nextElement(); String value=req.getHeader(name); out.println("<tr>"); out.println("<td>"+name+"</td>"); out.println("<td>"+value+"</td>"); out.println("</tr>"); } out.println("</table><p>"); out.println("<table border=1 align=center>"); out.println("<caption>其余访问信息</caption"); out.println("<tr>"); out.println("<td>客户端的IP地址</td>"); out.println("<td>"+req.getRemoteAddr()+"</td>"); out.println("</tr>"); out.println("<tr>"); out.println("<td>客户端的端口号</td>"); out.println("<td>"+req.getRemotePort()+"</td>"); out.println("</tr>"); out.println("<tr>"); out.println("<td>服务器的IP地址</td>"); out.println("<td>"+req.getLocalAddr()+"</td>"); out.println("</tr>"); out.println("<tr>"); out.println("<td>服务器的端口号</td>"); out.println("<td>"+req.getLocalPort()+"</td>"); out.println("</tr>"); out.println("</table>"); out.println("</center></body></html>"); out.close();

    }

----

配置web.xml

为：

 <servlet>
    <description>This is the description of my J2EE component</description>
    <display-name>This is the display name of my J2EE component</display-name>
    <servlet-name>OutputInfo</servlet-name>
    <servlet-class>OutputInfo</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>OutputInfo</servlet-name>
    <url-pattern>/OutputInfo</url-pattern>
  </servlet-mapping>

----

在浏览器中访问：http://localhost:8080/web03-outPutInfo/OutputInfo

 结果为：