📄 amerce.jsp
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<%@ page contentType = "text/html; charset =GBK" %>
<%@ page language = "java" import = "java.sql.*,java.util.Calendar" %>
<%! int i=0;%>
<%
request.setCharacterEncoding("GBK");
response.setCharacterEncoding("GBK");
%>
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<TR height=30><TD bgColor=#eeeecc><font face="华文隶书" size="6"><b><A
class=boldBlackFont2>AMERCE</A> Result:</b></font></TD></TR></TBODY></TABLE></td>
</tr>
<tr>
<td width="1025" colspan="7" align="center"><CENTER>
<%
String n1 = request.getParameter("cardID");
String n2 = request.getParameter("mount");
Calendar cal = Calendar.getInstance();
String date = ""+cal.get(Calendar.MONTH)+"-"+cal.get(Calendar.DATE);
out.println("Card ID : "+n1+"<BR>");
out.println("The mount : "+n2+"<BR>");
%>
<%
String mySqlDriver = "com.mysql.jdbc.Driver";
String url ="jdbc:mysql://localhost:3306/library?user=root&password=123456&useUnicode=true&characterEncoding=gbk";
Connection conn;
try{
Class.forName(mySqlDriver);
}
catch(Exception e){
out.println("Driver Error");
}
conn = DriverManager.getConnection(url);
if(conn==null){
out.println("get Conn erroe");
}
Statement stm = conn.createStatement();
ResultSet re = null;
int re2 = 0;
int re3 = 0;
re = stm.executeQuery("SELECT amerce,amerce_total FROM accounts WHERE cardID ='"+n1+"'");
String a =null;
String at=null;
while(re.next()){ a = re.getString("amerce") ;at = re.getString("amerce_total");}
if(a==null) out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>No Such cardID ERROR!</TD>");
else{
float a1 = Float.parseFloat(a);
float at1 = Float.parseFloat(at);
float a2 = Float.parseFloat(n2);
float a3 = a1+a2;
float at2= at1+a2;
String a4 = ""+a3;
String at3 = ""+at2;
if(at3.length()>6) at3=at3.substring(0,5);
if(a4.length()>6) a4=a4.substring(0,5);
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>THE MEARCE BECOME"+a4+"</TD>");
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>THE MEARCE_total BECOME"+a4+"</TD>");
if(a3>=0){
try{
re2 =stm.executeUpdate("UPDATE accounts SET amerce = '"+a4+"',amerce_total = '"+at3+"' WHERE cardID = '"+n1+"'");
}
catch(Exception e){
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>ERROR a3>0111!</TD>");
}
try{
re3 = stm.executeUpdate("INSERT INTO amerces SET amerce = '"+n2+"',cardID ='"+n1+"',amercetime='"+date+"'");//DATEcardID, amercetime, amerce
out.println("<tr vAlign=center align=middle bgcolor = #00ff00> <TD Align=center align=middle>The successful line update account:"+re2+"</TD>");
out.println("<tr vAlign=center align=middle bgcolor = #00ff00> <TD Align=center align=middle> The successful line insert amerce:"+re3+"</TD>");
}
catch(Exception e){
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>ERROR a3>0!</TD>");
}
}
else {
try{
re2 =stm.executeUpdate("UPDATE accounts SET amerce = '"+a4+"',state = 'F' WHERE cardID = '"+n1+"'");
}
catch(Exception e){
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>ERROR a3>0222!</TD>");
}
try{
re3 = stm.executeUpdate("INSERT INTO amerces SET amerce = '"+n2+"',cardID ='"+n1+"',amercetime='"+date+"'");//DATEcardID, amercetime, amerce
out.println("<tr vAlign=center align=middle bgcolor = #00ff00> <TD Align=center align=middle>The successful line update account:"+re2+"</TD>");
out.println("<tr vAlign=center align=middle bgcolor = #00ff00> <TD Align=center align=middle> The successful line insert amerce:"+re3+"</TD>");
}
catch(Exception e){
out.println("<tr vAlign=center align=middle bgcolor = #ffff00> <TD Align=center align=middle>ERROR a3>0!</TD>");
}
}
}
%>
</TR>
<%
re.close();
stm.close();
conn.close();
%>
</TABLE></CENTER>
<p align="center"><a href="../opration.htm"></td>
</tr>
<tr>
<td width="1025" colspan="7" align="center"> <font face="Courier New">
GO BACK SEARCH AGAIN</font></a><p>Library</td>
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<tr>
<td width="1025" colspan="7" align="center"><FONT size=1>© 2007.5-2007.6 142042 All rights
reserved.</FONT></td>
</tr>
</table>
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