📄 adminpriceservlet.java
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/*
* Created on 2004-6-13
*
* To change the template for this generated file go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
package com.servlet;
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;
/**
* @author haoyulong
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/
public class AdminPriceServlet extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
//TODO Method stub generated by Lomboz
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
String Price=(String)getServletConfig().getServletContext().getAttribute("Price");
if(Price==null){
Price=(String)getServletConfig().getInitParameter("price");//从初始化参数中拿
getServletConfig().getServletContext().setAttribute("Price",Price);//放入应用上下文
}
out.println("<HTML><HEAD><TITLE>价格管理 "
+ "Example</TITLE></HEAD>");
out.println("<BODY><TABLE border=\"0\" width=\"100%\"><tr>");
out.println("<td align=\"left\" valign=\"bottom\">");
out.println("<H1>当前肉价显示</H1></td></tr></TABLE>");
out.print("<FORM ACTION=\"");
out.println(response.encodeURL("adminprice"));
out.println("\" METHOD=\"POST\">");
out.println("当前猪肉价格（斤/元）");
out.println("<INPUT TYPE=\"text\" NAME=\"price\" "
+ "VALUE="+Price+">");
out.println("<INPUT TYPE=\"Submit\" NAME=\"btn_submit\" "
+ "VALUE=\"更新\">");
out.println("</FORM></BODY></HTML>");
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
//TODO Method stub generated by Lomboz
String currentPrice =request.getParameter("price");
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
String Price=(String)getServletConfig().getServletContext().getAttribute("Price");
if(Price==null){
Price=(String)getServletConfig().getInitParameter("price");//从初始化参数中拿
getServletConfig().getServletContext().setAttribute("Price",Price);//放入应用上下文
}
else{
getServletConfig().getServletContext().setAttribute("Price",currentPrice);//放入应用上下文
}
out.println("<HTML><HEAD><TITLE>价格显示 "
+ "Example</TITLE></HEAD>");
out.println("<BODY>");
out.println("当前猪肉价格："+currentPrice+"元/斤");
out.println("</BODY></HTML>");
}
}
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