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Supplier query in POS Management System

Source: Internet
Author: User
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<% @ Page Language = "Java" Import = "Java. util. *" pageencoding = "UTF-8" %>

<! Doctype HTML public "-// W3C // dtd html 4.01 transitional // en">
<HTML>
<Head>

<Title> my JSP 'loginservlet. jsp 'starting page </title>

</Head>

<Body>
<Form action = "<% = request. getcontextpath () %>/mfredit1.do" method = "Post">
<Table border = "1">
<Tr>
<TD> vendor code </TD>
<TD> <input type = "text" name = "CNO">
<Input type = "hidden" name = "method" value = "find"/>
</TD>
</Tr>
<Tr>
<TD>
<Input type = "Submit" value = "query"/>
</TD>
</Tr>
</Table>
</Form>
</Body>
</Html>

Package servlet;

Import java. Io. ioexception;
Import java. SQL. connection;
Import java. SQL. drivermanager;
Import java. SQL. preparedstatement;
Import java. SQL. resultset;
Import java. SQL. sqlexception;
Import java. util. arraylist;
Import java. util. List;

Import javax. servlet. requestdispatcher;
Import javax. servlet. servletexception;
Import javax. servlet. http. httpservlet;
Import javax. servlet. http. httpservletrequest;
Import javax. servlet. http. httpservletresponse;

Import entity. cusinfo;

@ Suppresswarnings ("serial ")
Public class editservlet1 extends httpservlet {
Private final string url = "JDBC: oracle: thin: @ 127.0.0.1: 1521: orcl ";
Private final string user = "gsuser ";
Private final string Pwd = "160127 ";
 
@ Override
Protected void doget (httpservletrequest req, httpservletresponse resp)
Throws servletexception, ioexception {

Dopost (req, resp );
}

@ Override
Protected void dopost (httpservletrequest req, httpservletresponse resp)
Throws servletexception, ioexception {
Req. setcharacterencoding ("UTF-8 ");
String CNO = Req. getparameter ("CNO ");
Int I = deletemfredit (CNO );
If (I> 0 ){
// Deletion successful
Resp. sendredirect (req. getcontextpath () + "/success. jsp ");
} Else {
Resp. sendredirect ("http://www.sohu.com ");
}

}
Private int deletemfredit (string CNO ){
String Delete = "delete from mfredit A where a. CNO =? ";
Int I = 0;
// Load the driver
Try {
Class. forname ("oracle. JDBC. Driver. oracledriver ");
} Catch (classnotfoundexception e ){
E. printstacktrace ();
}
Connection conn = NULL;
Preparedstatement pstmt = NULL;
Try {
Conn = drivermanager. getconnection (URL, user, PWD );
Pstmt = conn. preparestatement (delete );
// Set parameters
Pstmt. setstring (1, CNO );
// Pstmt. setstring (2, cname); // Execute
I = pstmt.exe cuteupdate ();
} Catch (sqlexception e ){
E. printstacktrace ();
} Finally {
Try {
If (pstmt! = NULL ){
Pstmt. Close ();
}
If (Conn! = NULL ){
Conn. Close ();
}
} Catch (sqlexception e ){
E. printstacktrace ();
}
}
Return I;
}

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Related Keywords:
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