我做的JSP+Servlet程序,插入信息提交后出现空白页面,不知道是什么原因??? 本帖最后由 beboyous 于 2013-02-26 22:45:03 编辑 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 以下是我的Servlet Action的源码:package com.xxj.action.supplier.save;import java.io.IOException;import javax.servlet.RequestDispatcher;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import com.xxj.bean.Supplier;import com.xxj.dao.ISupplierDao;import com.xxj.dao.impl.SupplierDaoImpl;public class SaveSupplierAction extends HttpServlet{ public void service(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{ response.setContentType("text/html;charset=utf-8"); String uri = request.getRequestURI(); String action = uri.substring(uri.lastIndexOf("/"),uri.lastIndexOf(".")); HttpSession session = request.getSession(); System.out.println(action.equals("/dosave"));//运行后,不打印结果 System.out.println(action.equals("/tosave"));//运行后,不打印结果 System.out.print("jghjguyiguygugjk");//运行后,不打印结果 if(action.equals("/dosave")){ /** * 获取页面所提交的数据给数据,将数据插入业务访问层 */ request.setCharacterEncoding("utf-8"); String name = request.getParameter("name"); System.out.println(name);//运行后,不打印结果 String discussTime = request.getParameter("year1") + "-" + request.getParameter("month1") + "-" + request.getParameter("day1") + " " + request.getParameter("hour1") + ":" + request.getParameter("min1"); System.out.println(discussTime);//运行后,不打印结果 String inputTime = request.getParameter("year2") + "-" + request.getParameter("month2") + "-" + request.getParameter("day2") + " " + request.getParameter("hour2") + ":" + request.getParameter("min2"); System.out.println("******");//运行后,不打印结果 System.out.println(inputTime);//运行后,不打印结果 String linkman = request.getParameter("linkman"); System.out.println(linkman);//运行后,不打印结果 String address = request.getParameter("address"); System.out.println(address);//运行后,不打印结果 String postcode = request.getParameter("postcode"); System.out.println(postcode);//运行后,不打印结果 String phone = request.getParameter("phone"); String telephone = request.getParameter("telephone"); String email = request.getParameter("telephone"); String website = request.getParameter("URL"); String resume = request.getParameter("resume"); String details = request.getParameter("details"); System.out.println(details);//运行后,不打印结果 String res = request.getParameter("res"); System.out.println(res);//运行后,不打印结果 Supplier su = new Supplier(); su.setName(name); su.setDiscussTime(discussTime); su.setInputTime(inputTime); su.setLinkman(linkman); su.setAddress(address); su.setPostcode(postcode); su.setPhone(phone); su.setTelephone(telephone); su.setEmail(email); su.setWebsite(website); su.setResume(resume); su.setDetails(details); su.setRes(res); System.out.println(su);//运行后,不打印结果 System.out.println(su.equals(null));//运行后,不打印结果 session.setAttribute("su", su); ISupplierDao isd = new SupplierDaoImpl(); try { isd.saveSupplier(su); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } response.sendRedirect("tosave.do"); }else if(action.equals("/tosave")){ /** * 将提交的那一条供货商信息,返回到提交后的提交成功的页面上面 */ Supplier su = (Supplier)session.getAttribute("su"); System.out.println(su.equals(null));//运行后,不打印结果 if(su != null){ request.setAttribute("su", su); RequestDispatcher rd = request.getRequestDispatcher("tosave.jsp"); rd.forward(request, response); }else{ System.out.println("su为空!!!");//运行后,不打印结果 } } }} 你的三个servlet的<url-pattern>设置的都是*.do,那么你用dosave.do访问的时候只会匹配第一个满足条件的,也就是RegistAction,后面的servlet当然得不到运行。 一个问题发了两个帖子? hibernate3.0执行 select now() from dual语句报错! 编程 jsp ajax无刷新页面 SPRING小问题 jasper报表用html输出图表不能显示,如何解决? hibernate保存后返回主键 急问!!!!如何取出下列字符串中的文件名!!! 如何防止class文件被反编译? 关于struts的<logic:iterator>标签的取值问题 Spring返回视图名后 界面没有跳转 java使用axis 调用C++的webservice报错 Hibernate@注解实体映射时延迟加载问题
package com.xxj.action.supplier.save;import java.io.IOException;import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;import com.xxj.bean.Supplier;
import com.xxj.dao.ISupplierDao;
import com.xxj.dao.impl.SupplierDaoImpl;
public class SaveSupplierAction extends HttpServlet{
public void service(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException{
response.setContentType("text/html;charset=utf-8");
String uri = request.getRequestURI();
String action = uri.substring(uri.lastIndexOf("/"),uri.lastIndexOf("."));
HttpSession session = request.getSession(); System.out.println(action.equals("/dosave"));//运行后,不打印结果
System.out.println(action.equals("/tosave"));//运行后,不打印结果 System.out.print("jghjguyiguygugjk");//运行后,不打印结果 if(action.equals("/dosave")){
/**
* 获取页面所提交的数据给数据,将数据插入业务访问层
*/
request.setCharacterEncoding("utf-8");
String name = request.getParameter("name"); System.out.println(name);//运行后,不打印结果 String discussTime = request.getParameter("year1") + "-" + request.getParameter("month1") +
"-" + request.getParameter("day1") + " " + request.getParameter("hour1") + ":" +
request.getParameter("min1"); System.out.println(discussTime);//运行后,不打印结果 String inputTime = request.getParameter("year2") + "-" + request.getParameter("month2") +
"-" + request.getParameter("day2") + " " + request.getParameter("hour2") + ":" +
request.getParameter("min2"); System.out.println("******");//运行后,不打印结果 System.out.println(inputTime);//运行后,不打印结果 String linkman = request.getParameter("linkman"); System.out.println(linkman);//运行后,不打印结果 String address = request.getParameter("address"); System.out.println(address);//运行后,不打印结果 String postcode = request.getParameter("postcode"); System.out.println(postcode);//运行后,不打印结果 String phone = request.getParameter("phone");
String telephone = request.getParameter("telephone");
String email = request.getParameter("telephone");
String website = request.getParameter("URL");
String resume = request.getParameter("resume");
String details = request.getParameter("details"); System.out.println(details);//运行后,不打印结果 String res = request.getParameter("res"); System.out.println(res);//运行后,不打印结果 Supplier su = new Supplier();
su.setName(name);
su.setDiscussTime(discussTime);
su.setInputTime(inputTime);
su.setLinkman(linkman);
su.setAddress(address);
su.setPostcode(postcode);
su.setPhone(phone);
su.setTelephone(telephone);
su.setEmail(email);
su.setWebsite(website);
su.setResume(resume);
su.setDetails(details);
su.setRes(res); System.out.println(su);//运行后,不打印结果 System.out.println(su.equals(null));//运行后,不打印结果 session.setAttribute("su", su);
ISupplierDao isd = new SupplierDaoImpl();
try {
isd.saveSupplier(su);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
response.sendRedirect("tosave.do");
}else if(action.equals("/tosave")){
/**
* 将提交的那一条供货商信息,返回到提交后的提交成功的页面上面
*/
Supplier su = (Supplier)session.getAttribute("su"); System.out.println(su.equals(null));//运行后,不打印结果 if(su != null){
request.setAttribute("su", su);
RequestDispatcher rd = request.getRequestDispatcher("tosave.jsp");
rd.forward(request, response);
}else{ System.out.println("su为空!!!");//运行后,不打印结果 }
}
}
}