?? del.java
字號:
/*
* 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.*;
/**
****************************************************
*類名稱: Del<br>
*類功能: 刪除狀態信息<br>
*創建: 白偉明 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);
//查詢添加狀態是否存在
if(rs.next()){
db.close();
//刪除狀態
stmt=db.getStmt();
temp=stmt.executeUpdate(sqld);
if(temp>0){
request.setAttribute("delmsg","刪除成功");
}else{
request.setAttribute("delmsg","刪除失敗");
}
}else{
request.setAttribute("delmsg","該狀態不存在");
}
} catch (SQLException e) {
request.setAttribute("delmsg","刪除失敗,請刪除屬于此員工狀態的所有員工");
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);
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -