📄 info.java
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/*
* 创建日期 2006-7-29
*
* TODO 要更改此生成的文件的模板，请转至
* 窗口 － 首选项 － Java － 代码样式 － 代码模板
*/
package test;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author YE
*
* TODO 要更改此生成的类型注释的模板，请转至 窗口 － 首选项 － Java － 代码样式 － 代码模板
*/
public class Info extends HttpServlet {
/**
*
*/
public Info() {
super();
// TODO 自动生成构造函数存根
}
/**
* @author YE
*
* 初始化Servlet
*
*/
public void init(ServletConfig cfg) throws ServletException {
super.init(cfg);//在该方法内一定要第一个调用父类的init()方法。
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
response.setContentType("text/html");
//获得输出流对象
java.io.PrintWriter out = new java.io.PrintWriter(response
.getOutputStream());
out.println("<html>");
out.println("<head>");
out.println("<title>Java Servlets Sample - Properties</title>");
out.println("</head>");
out.println("<h2><center>");
out.println("Information About You</center></h2>");
out.println("<br>");
out.println("<center><table border>");
out.println("<tr>");
out.println("<td>Method</td>");
out.println("<td>" + request.getMethod() + "</td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td>User</td>");
out.println("<td>" + request.getRemoteUser() + "</td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td>Client</td>");
out.println("<td>" + request.getRemoteHost() + "</td>");
out.println("</tr>");
out.println("<tr>");
out.println("<td>Protocol</td>");
out.println("<td>" + request.getProtocol() + "</td>");
out.println("</tr>");
//得到所有的参数
java.util.Enumeration enum = request.getParameterNames();
while (enum.hasMoreElements()) {
String name = (String) enum.nextElement();
out.println("<tr>");
out.println("<td>Parameter '" + name + "'</td>");
out.println("<td>" + request.getParameter(name) + "</td>");
out.println("</tr>");
}
out.println("</table></center><br><hr><br>");
out.println("<h2><center>");
out.println("Server Properties</center></h2>");
out.println("<br>");
out.println("<center><table border width=80%>");
java.util.Properties props = System.getProperties();
enum = props.propertyNames();
while (enum.hasMoreElements()) {
String name = (String) enum.nextElement();
out.println("<tr>");
out.println("<td>" + name + "</td>");
out.println("<td>" + props.getProperty(name) + "</td>");
out.println("</tr>");
}
out.println("</table></center>");
out.println("</html>");
out.flush();
}
public void destroy() {
super.destroy();
}
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