addcategoryservlet.java

来自「jsp + servlete + jdbc开的管理系统」· Java 代码 · 共 53 行

package hbu.david.cmc.servlet;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import hbu.david.cmc.bean.*;
import hbu.david.cmc.work.*;
import hbu.david.cmc.util.*;

/**
 * Servlet implementation class for Servlet: AddCategoryServlet
 *
 */
 public class AddCategoryServlet extends hbu.david.cmc.http.MyHttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public AddCategoryServlet() {
		super();
	}

	@Override
	public void doExecute(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException {
		// TODO Auto-generated method stub
		if(StringUtil.isStringEmpty(request.getParameter("categoryName"))||StringUtil.isStringEmpty(request.getParameter("categoryIntroduce"))){
			request.setAttribute("errorMessage", "不允许有空数据！");
			request.setAttribute("returnUrl", "addCategory.jsp");
			request.getRequestDispatcher("error.jsp").forward(request, response);
		}else{		
			Category category=new Category();
			category.setIntroduce(request.getParameter("categoryIntroduce").trim());
			category.setName(request.getParameter("categoryName").trim());
			category.setUserId(((UserInfo)request.getSession().getAttribute("userInfo")).getId());
			//response.getWriter().print(CategoryBean.addCategory(category));
			if(CategoryBean.addCategory(category)){
				//添加成功
				request.setAttribute("errorMessage", "添加成功！");
				request.setAttribute("returnUrl", "addCategory.jsp");
				request.getRequestDispatcher("GetCategoriesServlet").forward(request, response);	
			}else{
				request.setAttribute("errorMessage", "添加失败！");
				request.setAttribute("returnUrl", "addCategory.jsp");
				request.getRequestDispatcher("error.jsp").forward(request, response);	
			}		
		}
	}   	 	  	  	    
}