package myBean;
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;
import java.sql.*;
import java.util.*;
public class ChangeAmountServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public ChangeAmountServlet() {
super();
}
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the GET method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=GB2312");
PrintWriter out = response.getWriter();
String t_goodsId;
String t_goodsAmount;
t_goodsId=request.getParameter("goodId");
t_goodsAmount=request.getParameter("name1");
ShoppingCart a=new ShoppingCart();
ConnectManager b=new ConnectManager();
Statement stmt1;
try {
stmt1 = b.conn.createStatement();
String sqlString = "select * from good1 where goodsId='"+t_goodsId+"'";
ResultSet rs=stmt1.executeQuery(sqlString);
a.changeAmount(t_goodsId, t_goodsAmount);
response.sendRedirect("ShopCart.jsp");
} catch (SQLException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
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