📄 requestheaderexample.java
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//RequestHeaderExample.java
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import util.HTMLFilter;
//此程序输出请求连接本地的信息
public class RequestHeaderExample extends HttpServlet {
ResourceBundle rb = ResourceBundle.getBundle("LocalStrings");
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<body bgcolor=\"white\">");//设置主体部分颜色
out.println("<head>");
String title = rb.getString("requestheader.title");
out.println("<title>" + title + "</title>");//设置标题
out.println("</head>");//开头部分结尾
out.println("<body>");//主体部分
//输出所有于连接有关的信息
out.println("<a href=\"../reqheaders.html\">");
out.println("<img src=\"../images/code.gif\" height=24 " +
"width=24 align=right border=0 alt=\"view code\"></a>");
out.println("<a href=\"../index.html\">");
out.println("<img src=\"../images/return.gif\" height=24 " +
"width=24 align=right border=0 alt=\"return\"></a>");
out.println("<h3>" + title + "</h3>");//输出文本同时设置字体
out.println("<table border=0>");
Enumeration e = request.getHeaderNames();
while (e.hasMoreElements()) {
String headerName = (String)e.nextElement();
String headerValue = request.getHeader(headerName);//获得头部名称
out.println("<tr><td bgcolor=\"#CCCCCC\">");//设置颜色
out.println(HTMLFilter.filter(headerName));//头部名称
out.println("</td><td>");
out.println(HTMLFilter.filter(headerValue));
out.println("</td></tr>");//设置文本大小和字体
}
out.println("</table>");//表格末尾
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
doGet(request, response);//执行函数
}
}
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