deptaddservlet.java

分为经理和出纳2个权限

package com.yiboit.cfss.dept;

import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DeptAddServlet extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String deptName = request.getParameter("deptName");
		String deptDescription = request.getParameter("deptDescription");
		
		if (deptName == null || deptName.length() == 0) {
			request.setAttribute("errmsg", "Department name is required.");
			request.getRequestDispatcher("deptAdd.jsp").forward(request, response);
			return;
		} else if(deptName.length() > 15) {
			request.setAttribute("errmsg", "Department name is too long.");
			request.getRequestDispatcher("deptAdd.jsp").forward(request, response);
			return;
		} else if(deptDescription != null && deptDescription.length() > 100) {
			request.setAttribute("errmsg", "Department description is too long.");
			request.getRequestDispatcher("deptAdd.jsp").forward(request, response);
			return;
		}
		
		DeptDAO dao = new DeptDAO();
		
		try {
			boolean res = dao.addDept(deptName, deptDescription);
			
			if (res) {
				response.sendRedirect("DeptListServlet");
			} else {
				request.setAttribute("errmsg", "Add failure.");
				request.setAttribute("name", deptName);
				request.setAttribute("desc", deptDescription);
				request.getRequestDispatcher("deptAdd.jsp").forward(request, response);
			}
		} catch (SQLException e) {
			e.printStackTrace();
			response.sendRedirect(request.getContextPath() + "/error.jsp");
		}
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}
}