I was working on a java project and it was working just fine. I was able to make connections. I closed all the connections properly in finally block. Now I am not able to make connections or even open psql in my terminal. How can I make it work as before. Much much appreciated
import java.sql.Connection;
import com.mchange.v2.c3p0.*;
public class MyConnection {
public static Connection getConnection(){
ComboPooledDataSource cpds1 = new ComboPooledDataSource();
String dbDriver = "org.postgresql.Driver";
String dbName = "jdbc:postgresql://localhost/postgres";
cpds1.setJdbcUrl(dbName);
String userName = "user_1";
cpds1.setUser(userName);
String password = "mypass";
cpds1.setPassword(password);
cpds1.setMaxStatements( 180 );
try
{
cpds1.setDriverClass(dbDriver);
return cpds1.getConnection();
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
}
This is where I'm calling it
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException
{
PrintWriter writer = response.getWriter();
JSONObject jo = new JSONObject();
JSONObject jObj;
Statement stmt = null;
Connection con = null;
PreparedStatement ps;
ResultSet rs = null;
try
{
jObj = UtilityClass.getJSON(request);
String uname = ((String) jObj.get("uname"));
String pass = ((String) jObj.get("pass"));
String sql = "SELECT * FROM users WHERE username = ?";
try
{
con = MyConnection.getConnection();
System.out.println("Got Connection");
stmt = con.createStatement();
ps = con.prepareStatement(sql);
ps.setString(1, uname);
rs = ps.executeQuery();
if(rs.next())
{
if(BCrypt.checkpw(pass,rs.getString("password")))
{
HttpSession session = request.getSession();
session.setAttribute("uname", uname);
if(session.isNew())
{
System.out.println("new");
}
if(uname.equals("admin"))
{
session.setAttribute("role", "admin");
jo.put("status", "admin");
}
else
{
session.setAttribute("role", "user");
jo.put("status", "authenticate");
}
}
}
writer.print(jo);
}
catch (Exception e)
{
e.printStackTrace();
System.out.println("Not Connected");
}
finally
{
if(rs != null)
{
rs.close();
}
if(stmt != null)
{
stmt.close();
}
if(con != null)
{
con.close();
}
}
}
catch(Exception e)
{
System.out.print("JSON Exception");
}
}
