package com.hr.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; import com.hr.dao.EASYBUY_USERDao; import com.hr.util.EncodeUtil; public class CheckNameServlet extends HttpServlet { @Override protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { EncodeUtil.encode(req); resp.setContentType("text/html;charset=utf-8"); String name = req.getParameter("name"); int count=EASYBUY_USERDao.selectByName(name); PrintWriter out = resp.getWriter(); if(count>0){ out.print("false"); }else{ out.print("true"); } out.close(); } }