package servlet;import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import dao.ProductDao;/**
* Servlet implementation class ProductUpdateServlet
*/
public class ProductUpdateServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ProductUpdateServlet() {
super();
// TODO Auto-generated constructor stub
} /**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("pName");
int num = Integer.parseInt(request.getParameter("pNum"));
int cnum = Integer.parseInt(request.getParameter("changeNum"));
ProductDao pd = new ProductDao();
try{
if(??){
num = num - cnum ;
pd.updatePro(name, num);
response.sendRedirect("ShowSuccess.jsp");
}else if(??){
num = num + cnum ;
pd.updatePro(name, num);
response.sendRedirect("ShowSuccess.jsp");
}
response.sendRedirect("ShowError1.jsp");
}catch (Exception e){
}
} /**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}}按钮上的字分别是 “出库” 和 “入库”
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import dao.ProductDao;/**
* Servlet implementation class ProductUpdateServlet
*/
public class ProductUpdateServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ProductUpdateServlet() {
super();
// TODO Auto-generated constructor stub
} /**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("pName");
int num = Integer.parseInt(request.getParameter("pNum"));
int cnum = Integer.parseInt(request.getParameter("changeNum"));
ProductDao pd = new ProductDao();
try{
if(??){
num = num - cnum ;
pd.updatePro(name, num);
response.sendRedirect("ShowSuccess.jsp");
}else if(??){
num = num + cnum ;
pd.updatePro(name, num);
response.sendRedirect("ShowSuccess.jsp");
}
response.sendRedirect("ShowError1.jsp");
}catch (Exception e){
}
} /**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}}按钮上的字分别是 “出库” 和 “入库”
解决方案 »
- 学会java 可以有哪些就业方向(请高手指点,初学者用得到)
- 报错求解决....
- Spring事务配置给service 还是 dao?
- myfaces t:tree2 显示问题,显示不规则
- java 检测utf-8字符
- 关于XML文档如何从网页中提取内容
- hibernate的cascade="delete"就如何工作?
- 如何讓jb9.0裡的struts-config.xml文件不要自動排版,而是保存手工排版的樣子
- SOS
- 请问borland application server支持ejb2吗?
- Struts+Spring+Hibernate问题,帮忙一下,谢拉
- Spring中的IOC如何理解?
另外一种就是通过struts来实现,也是需要配置好文件,通过表单来发送数据。