charu.java

来自「还是那个超市系统都是组员的成品」· Java 代码 · 共 48 行

package superMarket; 
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javabean.OracleBean;
public class ChaRu extends HttpServlet{
	public void doGet(HttpServletRequest request,HttpServletResponse response)
	      throws ServletException,IOException{
	      	try{
	      		
	      		response.setContentType("text/html;charset=GBK");
	      	    PrintWriter out = response.getWriter();
	      	    HttpSession session =request.getSession();
	      	  /*  if(session.getAttribute("name")==null||session.getAttribute("name").equals(null)){
	      	    	System.out.println("==========");
	      	    }else{
	      	    	System.out.println("$$$$$$$$$$$$$");
	      	    }
	      	    String ss = (String)session.getAttribute("name");//获取session参数
	      	    if(ss=="ok"){
	
	      	    	getServletConfig().getServletContext().getRequestDispatcher("/xianshixinxi.jsp").forward(request,response);
	      	    }
	      	     else{
	      	     	getServletConfig().getServletContext().getRequestDispatcher("/login.html").forward(request,response);
	      	     } */
	      	    OracleBean conn = new OracleBean();
	      	    ResultSet rs = null;
	      	    String s_num = request.getParameter("shuliang");
	      	    request.setAttribute("shuliang",s_num);//保存数据
	      	    String g_id = request.getParameter("bianhao");
	      	    rs = conn.query("SELECT gname,ss_price From goods WHERE g_id=g_id");
	      	    
	      	    request.setAttribute("result",rs);
	      	    getServletConfig().getServletContext().getRequestDispatcher("/xianshixinxi.jsp").forward(request,response);
	        	
	        	 }catch(Exception e){
	   	 	       e.printStackTrace();
	   	 	
	   	 }
	      	 
	     }
	     public void doPost(HttpServletRequest request,HttpServletResponse response)
	          throws ServletException,IOException{
	          	  doGet(request,response);
	          }
}