addroleservlet.java

oa办公系统

package cn.jx.ecjtu.oa.servlets.users;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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

import cn.jx.ecjtu.oa.ps.pojo.Role;
import cn.jx.ecjtu.oa.services.Result;
import cn.jx.ecjtu.oa.services.ServiceFactory;
import cn.jx.ecjtu.oa.services.SysUserService;

public class AddRoleServlet extends HttpServlet {

	/**
	 * 这个Servlet是用来添加新的角色
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * 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 {

	   doPost(request, response);
	}

	/**
	 * 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 {
            Result rs=null;
		    String roleName=request.getParameter("roleName");//获取表单提交上来的角色名称
		    
		    try{
		    	rs=sus.addRole(roleName);//调用服务层方法添加角色，并返回结果
		    }catch(Exception e){
		    	//如出现异常添加不成功则将消息转发到result.jsp，提示用户
		    	request.setAttribute("message", rs.getMessage());
				request.getRequestDispatcher("result.jsp").forward(request, response);
		    }
		    //获取角色LIST列表，刷新roleList.jsp
		    List<Role> role=sus.getAllRole();
		    request.setAttribute("Role",role);
			request.getRequestDispatcher("FindRoleName").forward(request, response);
		    
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	private SysUserService sus=null;
	public void init() throws ServletException {
		sus=(SysUserService)ServiceFactory.getService(SysUserService.class);
	}

}