?? searchservlet.java
字號:
package votetool;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.text.*;
public class SearchServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK";
//Initialize global variables
public void init() throws ServletException {
}
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
BaseDao db=new BaseDao();
double a=db.getCount("A");
double b=db.getCount("B");
double c=db.getCount("C");
double d=db.getCount("D");
double e=a+b+c+d;
request.setAttribute("A",(int)a);
request.setAttribute("B",(int)b);
request.setAttribute("C",(int)c);
request.setAttribute("D",(int)d);
request.setAttribute("A1",new Double( new DecimalFormat( ".00" ).format( a / e*100) ));
request.setAttribute("B2",new Double( new DecimalFormat( ".00" ).format( b / e*100) ));
request.setAttribute("C3",new Double( new DecimalFormat( ".00" ).format( c / e*100) ));
request.setAttribute("D4",new Double( new DecimalFormat( ".00" ).format( d / e*100) ));
this.getServletContext().getRequestDispatcher("/result.jsp").forward(request,response);
}
//Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
doGet(request, response);
}
//Clean up resources
public void destroy() {
}
}
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