[英]connect oracle database in netbeans
i am trying to connect oracle database to netbeans. 我正在尝试将oracle数据库连接到netbeans。 I followed instruction that given in https://netbeans.org/kb/docs/ide/oracle-db.html .
我按照https://netbeans.org/kb/docs/ide/oracle-db.html中的说明进行操作。 I fulfilled all the steps that given site.
我完成了给出网站的所有步骤。 but when i try to connect database by using servlet page i got an error.
但是当我尝试使用servlet页面连接数据库时,我收到了一个错误。
error is given below, 错误如下,
Error Occured : Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by the client was: localhost:1521:XE [kavindu on KAVINDU]
错误发生:侦听器拒绝连接时出现以下错误:ORA-12505,TNS:侦听器当前不知道连接描述符中给出的SID客户端使用的连接描述符是:localhost:1521:XE [kavindu on KAVINDU]
I have no idea, what i next do, 我不知道,我接下来会做什么,
My servlet code is given below, 我的servlet代码如下,
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String customer_id = request.getParameter("customer_id");
String f_name = request.getParameter("f_name");
String l_name = request.getParameter("l_name");
String mobile_no = request.getParameter("mobile_no");
String address = request.getParameter("address");
try {
//loading driver
Class.forName("oracle.jdbc.driver.OracleDriver");
//creating connection with the database
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE [kavindu on KAVINDU]","kavindu","123456");
PreparedStatement ps = con.prepareStatement("insert into COMPACT_DISK values(?,?,?,?,?)");
ps.setString(1, customer_id);
ps.setString(2, f_name);
ps.setString(3, l_name);
ps.setString(4, mobile_no);
ps.setString(5, address);
int i = ps.executeUpdate();
if (i > 0) {
//out.println("Compact disk successfully inserted");
RequestDispatcher d = request.getRequestDispatcher("new.html");
d.forward(request, response);
}
} catch (ClassNotFoundException | SQLException | ServletException | IOException se) {
out.println("Error Occured : \n" + se.getLocalizedMessage());
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
检查数据库SID是否正确,我认为这是问题所在。
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