transmit.java

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package ksnb;
//把书籍信息从数据提取，放入容器中，以便再页面上显示
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.lang.String;
import java.sql.*;

public class Transmit extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GB2312";
     ResultSet rs;
    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void service(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        String action = request.getParameter("action");
        //将String类型转换成Int
        int act = Integer.parseInt(action);
        //生成Book类的对象，并调用Q_Book()方法
        Book b = new Book();

        rs=b.Q_Book(act);
        getRs();

        RequestDispatcher rd=request.getRequestDispatcher("Context.jsp");
        rd.forward(request,response);
      }

    public ResultSet getRs(){
     return rs;
    }
    public void destroy() {}
}