Del.java
上传用户:sxwtmm
上传日期:2022-08-11
资源大小:2183k
文件大小:2k
- /*
- * Created on 2004-9-24
- *
- * To change the template for this generated file go to
- * Window>Preferences>Java>Code Generation>Code and Comments
- */
- package com.emstate;
- import oa.sys.*;
- import java.io.*;
- import java.sql.*;
- import javax.servlet.*;
- import javax.servlet.http.*;
- /**
- ****************************************************
- *类名称: Del<br>
- *类功能: 删除状态信息<br>
- *创建: 白伟明 2004年9月25日<br>
- ****************************************************
- * To change the template for this generated type comment go to
- * Window>Preferences>Java>Code Generation>Code and Comments
- */
- public class Del extends HttpServlet{
- private HttpSession session=null;
- private Statement stmt=null;
- private ResultSet rs=null;
- private String sqld,sqls;
- private int temp=0,id=0;
-
- public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
- request.setCharacterEncoding("gb2312");
- response.setContentType("text/html; charset=gb2312");
- Str str=new Str();
- Db db=new Db();
- PrintWriter out=response.getWriter();
- session=request.getSession();
- try{
- id=Integer.parseInt((String)request.getParameter("id"));
- }catch(NumberFormatException e){
- e.printStackTrace();
- }
- sqld="DELETE FROM emstate WHERE stateid="+id;
- sqls="SELECT * FROM emstate WHERE stateid="+id;
- stmt=db.getStmtread();
- try {
- rs=stmt.executeQuery(sqls);
- //查询添加状态是否存在
- if(rs.next()){
- db.close();
- //删除状态
- stmt=db.getStmt();
- temp=stmt.executeUpdate(sqld);
- if(temp>0){
- request.setAttribute("delmsg","删除成功");
- }else{
- request.setAttribute("delmsg","删除失败");
- }
- }else{
- request.setAttribute("delmsg","该状态不存在");
- }
- } catch (SQLException e) {
- request.setAttribute("delmsg","删除失败,请删除属于此员工状态的所有员工");
- System.err.print(e.getMessage());
- }finally{
- db.close();
- RequestDispatcher dispatcher=request.getRequestDispatcher("del.jsp");
- dispatcher.forward(request,response);
- }
- }
- public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
- doPost(request,response);
- }
- }