getserverinfoservlet.java

来自「用java编写的程序」· Java 代码 · 共 75 行

JAVA
75 行
字号 
package webbook.chapter3;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 能输出服务器运行信息的Servlet
 * @author Liuwei
 * @version 1.0
 *
 */
public class GetServerInfoServlet extends HttpServlet {
	private static final long serialVersionUID = 8908506385016874834L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		out.println("<html>");
		out.println("<head><title>display sever infomation</title></head>");
		out.println("<body>");

		printValues(request, out);

		out.println("</body>");
		out.println("</html>");
		out.flush();
		out.close();
	}

	public void printValues(HttpServletRequest request, PrintWriter out) throws IOException {
		out.println("<table align=\"center\" border=\"1\">");
		out.println("<tr><th> 参数名 </th><th>数值 </th>");

		out.println("<tr><td align=\"center\">服务器IP</td>");
		out.println("<td align=\"center\">" + request.getRemoteAddr() + "</td></tr>");

		out.println("<tr><td align=\"center\">服务器名</td>");
		out.println("<td align=\"center\">" + request.getServerName() + "</td></tr>");

		out.println("<tr><td align=\"center\">服务器端口号</td>");
		out.println("<td align=\"center\">" + request.getServerPort() + "</td></tr>");
		
		out.println("<tr><td align=\"center\">协议名</td>");
		out.println("<td align=\"center\">" + request.getScheme() + "</td></tr>");
		
		out.println("<tr><td align=\"center\">协议版本</td>");
		out.println("<td align=\"center\">" + request.getProtocol()+ "</td></tr>");
		
		out.println("<tr><<td align=\"center\">请求的方法</td>");
		out.println("<td align=\"center\">" + request.getMethod() + "</td></tr>");

		out.println("<tr><td align=center>请求的URL</td>");
		out.println("<td align=\"center\">" + request.getRequestURI() + "</td></tr>");
		
		out.println("<tr><td align=center>上下文路径</td>");
		out.println("<td align=\"center\">" + request.getContextPath() + "</td></tr>");

		out.println("<tr><td align=center>Servlet路径 </td>");
		out.println("<td align=\"center\">" + request.getServletPath() + "</td></tr>");

		out.println("</table><br>");
	}
}

getserverinfoservlet.java - 源码说明

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