zhucekl.java

这个是我们做土地局的一个项目。感觉不错。欢迎下载

package huayi.gg.zhuceKL;
import java.sql.*;
public class zhuceKL{
public zhuceKL(){}
public String getKL(String strin,String str)
  {
   String strout=null;
try{
   int i=0;
   int j=0;
   for(i=0,j=0;i<strin.length();i++,j++)
     { char ch='0';
       char chin=Character.toLowerCase(strin.charAt(i));
       if(j==(str.length()))
         { j=0; }
       if((j%2)==0)
       {  
       	  ch=Character.toLowerCase(str.charAt(str.length()-j-1));
       }else{
          ch=Character.toLowerCase(str.charAt(j));
       }
       int num=(((int)ch+(int)chin)/2);
       if((num%2)==0)
       {
       	  num=num+i;
       	  if(num>122){ num=num-(int)(3*i/2); }
       	}else{
       	  num=num-i;
       	  if(num<48){ num=num+(int)(4*i)/3; }
       	}
       char chout=(char)(num);
       strout=strout+chout;  
       
     }
    }catch(Exception e){System.out.print(e.toString());} 
       return strout.substring(4,strout.length());}
 
  //验证员工口令
public boolean yanzhengKL(String YGBH,String strin)
  {
  try{
   huayi.gg.dbConn.dbConn myConn=new huayi.gg.dbConn.dbConn();
   String DLMM=null;
   String JYMM=null;
   String sql="select DLMM,JYMM from T_YGDLXXB where YGBH='"+YGBH+"'";
   ResultSet rs=myConn.executeQuery(sql);
   if(rs.next())
   {
     DLMM=rs.getString("DLMM");
     JYMM=rs.getString("JYMM");
   }
   myConn.close();
   String strout=getKL(strin,JYMM);
   if(strout.compareTo(DLMM)==0)
   {
     return true;	
   }else{
     return false;
   }  
     }catch(Exception e){System.out.print(e.toString());
	 return false;} 	
  
 }
//验证友人口令
public boolean yourenKL(String YGBH,String strin)
  {
  try{
   huayi.gg.dbConn.dbConn myConn=new huayi.gg.dbConn.dbConn();
   String DLMM=null;
   String JYMM=null;
   String sql="select DLMM,JYMM from T_YRXXB where YRBH='"+YGBH+"'";
   ResultSet rs=myConn.executeQuery(sql);
   if(rs.next())
   {
     DLMM=rs.getString("DLMM");
     JYMM=rs.getString("JYMM");
   }
   myConn.close();
   String strout=getKL(strin,JYMM);
   if(strout.compareTo(DLMM)==0)
   {
     return true;	
   }else{
     return false;
   }  
     }catch(Exception e){System.out.print(e.toString());
	 return false;} 	
  
 }
 }