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How to get the list of all database names from a Sybase DB Server in java

I want to get the list of all database names from a Sybase DB server. I can connect the Sybase db through Java, but don't know how to get the list of database names. I am using jconn4 jar file.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import com.sybase.jdbc4.jdbc.SybDriver;
public class ConnectToSybase {
public static Connection conn = null;
public static Statement stmt = null;
public static SybDriver sybDriver = null;
public static ResultSet rs = null;
public static String dbServerIP = "10.10.10.11";
public static String portNo = "5000";
public static String dbName = "NewDB";
public static void main(String[] args) {
try {
Class.forName("com.sybase.jdbc4.jdbc.SybDriver").newInstance();
System.out.println("Driver loaded");
conn = DriverManager.getConnection("jdbc:sybase:Tds:" + dbServerIP + ":" + portNo, "usrname", "password");
stmt = conn.createStatement();
} catch (Exception e) {
System.out.println("In exception");
e.printStackTrace();
} finally {
try {
rs.close();
stmt.close();
conn.close();
} catch (Exception e) {
}
}
}
}

I found myself a working code.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import com.sybase.jdbc4.jdbc.SybDriver;
public class ConnectToSybase {
public static Connection conn = null;
public static Statement stmt = null;
public static SybDriver sybDriver = null;
public static ResultSet rs = null;
public static String dbServerIP = "10.10.10.11";
public static String portNo = "5000";
public static String dbName = "NewDB";
public static void main(String[] args) {
try {
Class.forName("com.sybase.jdbc4.jdbc.SybDriver").newInstance();
System.out.println("Driver loaded");
conn = DriverManager.getConnection("jdbc:sybase:Tds:" + dbServerIP + ":" + portNo, "usrname", "password");
stmt = conn.createStatement();
List<String> dbList = new ArrayList<String>();
// getting list of DB names from the DB server
ResultSet rs = conn.getMetaData().getCatalogs();
while (rs.next()) {
dbList.add(rs.getString(1));
}
for (String list : dbList) {
System.out.println(list);
}
} catch (Exception e) {
System.out.println("In exception");
e.printStackTrace();
} finally {
try {
rs.close();
stmt.close();
conn.close();
} catch (Exception e) {
}
}
}
}

Data Access object method not working

I am a student learning JSP, and I seem to have this issue in executing a method via an object of a DAO class. When the database connectivity and SQL query is given on the servlet itself it, it will work. But when given in the DAO class and a object is used, it doesn't work. Please help.
import dataaccessobjects.cartDAO1;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class addtoCartServ extends HttpServlet {
#Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
cartDAO1 newcart = new cartDAO1();
PrintWriter out = response.getWriter();
if (request.getParameter("submit") != null){
//out.println("added to cart");
try {
//out.println("submit not null");
String Uname = (String) request.getSession().getAttribute("Welcome");
String ino = request.getParameter("ino");
String iqnty = request.getParameter("quantity");
String iname = request.getParameter("iname");
if(newcart.addToCart(iname,Uname,ino,iqnty)){
out.println("added to cart");
}
} catch (SQLException ex) {
Logger.getLogger(addtoCartServ.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException ex) {
Logger.getLogger(addtoCartServ.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
The DAO class
public cartDAO1(){
}
public boolean addToCart(String iname,String username, String ino,String iqnty) throws SQLException, ClassNotFoundException{
boolean flag = false;
Class.forName("org.apache.derby.jdbc.ClientDriver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/styleomega","root","");
PreparedStatement ps = conn.prepareStatement("INSERT INTO cart(iname,uname,ino,iqnty) VALUES (?,?,?,?)");
// set the values for parameters
ps.setString(1,iname);
ps.setString(2,username);
ps.setString(3,ino);
ps.setString(4,iqnty);
int rs = ps.executeUpdate();
if (rs==1){
flag = true;
}
return flag;
}
}

You should be import the DAO class package in servlet then access it it will work like
import DAO.cartDao;
If you will not import then how to acces it

I don't understand exactly what is not working? But I have noticed, you're not closing statement and the database connection in your DAO class.
FYI: An example
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
conn = // Retrieve connection
stmt = conn.prepareStatement(// Some SQL);
rs = stmt.executeQuery();
} catch(Exception e) {
// Error Handling
} finally {
try { if (rs != null) rs.close(); } catch (Exception e) {};
try { if (stmt != null) stmt.close(); } catch (Exception e) {};
try { if (conn != null) conn.close(); } catch (Exception e) {};
}

OSB ALSBConfigurationMBean importing configuration using java

I am trying to import configuration sbconfig.jar in OSB using java for automated tests. Before that I implemented FindAndReplace operation using Orcale help in java.
But in сase importing configuration from the same Article, when I run presented code - I get an error.
What I am trying to do
Connect to OSB(Oracle Service Bus 11.1)
Read file
Create session
Import prepared file
Activate session
On fourth item i got an error:
Cannot import to deployed configuration
Maybe someone has already implemented such a thing?
I would be grateful for help
package update.configuration.osb;
import com.bea.wli.config.Ref;
import com.bea.wli.config.customization.FindAndReplaceCustomization;
import com.bea.wli.config.env.EnvValueQuery;
import com.bea.wli.config.importexport.ImportResult;
import com.bea.wli.config.resource.Diagnostics;
import com.bea.wli.sb.management.configuration.*;
import com.bea.wli.sb.util.EnvValueTypes;
import com.bea.wli.config.customization.Customization;
import java.io.*;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Hashtable;
import java.util.List;
import javax.management.*;
import javax.management.remote.*;
import javax.naming.Context;
import weblogic.management.jmx.MBeanServerInvocationHandler;
import weblogic.management.mbeanservers.domainruntime.DomainRuntimeServiceMBean;
import com.bea.wli.sb.management.importexport.ALSBJarInfo;
import com.bea.wli.sb.management.importexport.ALSBImportPlan;
import java.util.Map;
public class OSBConfigUpdateNew {
private static JMXConnector initConnection(String hostname, int port,
String username, String password) throws IOException,
MalformedURLException {
JMXServiceURL serviceURL = new JMXServiceURL("t3", hostname, port,
"/jndi/" + DomainRuntimeServiceMBean.MBEANSERVER_JNDI_NAME);
Hashtable<String, String> h = new Hashtable<String, String>();
h.put(Context.SECURITY_PRINCIPAL, username);
h.put(Context.SECURITY_CREDENTIALS, password);
h.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES,
"weblogic.management.remote");
return JMXConnectorFactory.connect(serviceURL, h);
}
static private void simpleImportExport(String importFileName, String host, int port,
String username, String password) {
JMXConnector conn = null;
SessionManagementMBean sm = null;
File importFile = new File(importFileName);
byte[] bytes = readBytes(importFile);
String sessionName = "newsession";
String statusmsg = "";
try {
conn = initConnection(host, port, username, password);
MBeanServerConnection mbconn = conn.getMBeanServerConnection();
DomainRuntimeServiceMBean domainService = (DomainRuntimeServiceMBean) MBeanServerInvocationHandler
.newProxyInstance(mbconn, new ObjectName(
DomainRuntimeServiceMBean.OBJECT_NAME));
sm = (SessionManagementMBean) domainService.findService(
SessionManagementMBean.NAME, SessionManagementMBean.TYPE,
null);
sm.createSession(sessionName);
ALSBConfigurationMBean alsbSession = getConfigMBean(sessionName, conn);
// ALSBConfigurationMBean alsbSession = (ALSBConfigurationMBean) domainService.findService(ALSBConfigurationMBean.NAME + "." + "newsession", ALSBConfigurationMBean.TYPE, null);
try {
alsbSession.uploadJarFile(bytes);
ALSBJarInfo jarInfo = alsbSession.getImportJarInfo();
ALSBImportPlan importPlan = jarInfo.getDefaultImportPlan();
ImportResult result = alsbSession.importUploaded(importPlan);
if (result.getImported().size() > 0) {
System.out.println("The following resources have been successfully imported.");
for (Ref ref : result.getImported()) {
System.out.println("\t" + ref);
}
}
if (result.getFailed().size() > 0) {
System.out.println("The following resources have failed to be imported.");
for (Map.Entry<Ref, Diagnostics> e : result.getFailed().entrySet()) {
Ref ref = e.getKey();
Diagnostics d = e.getValue();
System.out.println("\t" + ref + ". reason: " + d);
}
System.out.println("Discarding the session.");
sm.discardSession(sessionName);
System.exit(1);
}
} catch (Exception e) {
e.printStackTrace();
}
try {
sm.activateSession(sessionName, "description");
ALSBConfigurationMBean alsbcore = getConfigMBean(null, conn);
byte[] contentsProj = alsbcore.exportProjects(Collections.singleton(Ref.makeProjectRef("Project")), null);
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception ex) {
if (null != sm) {
try {
sm.discardSession(sessionName);
} catch (Exception e) {
System.out.println("Able to discard the session");
}
}
statusmsg = "Not able to perform the operation";
ex.printStackTrace();
} finally {
if (null != conn)
try {
conn.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
private static ALSBConfigurationMBean getConfigMBean(String sessionName, JMXConnector conn) throws Exception {
MBeanServerConnection mbconn = conn.getMBeanServerConnection();
DomainRuntimeServiceMBean domainService =
(DomainRuntimeServiceMBean) MBeanServerInvocationHandler.newProxyInstance(
mbconn, new ObjectName(DomainRuntimeServiceMBean.OBJECT_NAME));
return (ALSBConfigurationMBean) domainService.findService(
ALSBConfigurationMBean.NAME,
ALSBConfigurationMBean.TYPE, null);
}
private static byte[] readBytes(File importFile) {
ByteArrayOutputStream ous = null;
InputStream ios = null;
try {
byte[] buffer = new byte[4096];
ous = new ByteArrayOutputStream();
ios = new FileInputStream(importFile);
int read = 0;
while ((read = ios.read(buffer)) != -1)
ous.write(buffer, 0, read);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (ous != null)
ous.close();
} catch (IOException e) {
}
try {
if (ios != null)
ios.close();
} catch (IOException e) {
}
}
return ous.toByteArray();
}
// private static Ref constructRef(String refType, String serviceuri) {
// Ref ref = null;
// String[] uriData = serviceuri.split("/");
// ref = new Ref(refType, uriData);
// return ref;
// }
public static void main(String[] args) {
simpleImportExport("C:\\sbconfig.jar", "127.0.0.1",
7001, "user", "password");
}
}

SQLException Operation not allowed after ResultSet closed

I am attempting to write a JUnit test for a query which is retrieved via a textbox in an html form. The text retrieval has been tested and works but my unit test is failing. I am using 2 relevant classes: QueryController and QueryControllerTest. I have been playing around with when and what I am closing in these two classes and keep getting the error: Operation not allowed after ResultSet closed.
QueryControllerTest.java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.junit.Test;
import static org.junit.Assert.*;
public class QueryControllerTest {
#Test
public void testQuery() {
ResultSet testRs = null;
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");
String connectionUrl = "jdbc:mysql://localhost:3306/test";
String connectionUser = "root";
String connectionPassword = "GCImage";
conn = DriverManager.getConnection(connectionUrl,
connectionUser, connectionPassword);
Query testQuery = new Query();
testQuery
.setQuery("select * from service_request where FN_contact = 'Greg'");
testRs = QueryController.executeSelect(conn, testQuery);
assertEquals("Laughlin", testRs.getString("LN_contact"));
assertEquals("Hello World", testRs.getString("Notes"));
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
testRs.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
QueryController.java
import java.util.Map;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class QueryController {
#RequestMapping(value = "/query")
public String processRegistration(#ModelAttribute("query") Query query,
Map<String, Object> model) {
String queryString = query.getQuery();
if (queryString != null && !queryString.isEmpty()) {
System.out.println("query (from controller): " + queryString);
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");
String connectionUrl = "jdbc:mysql://localhost:3306/test";
String connectionUser = "root";
String connectionPassword = "GCImage";
conn = DriverManager.getConnection(connectionUrl,
connectionUser, connectionPassword);
if (queryString.toLowerCase().startsWith("select")) {
ResultSet rs = executeSelect(conn, query);
} else {
int rowsUpdated = executeUpdate(conn, query);
System.out.println(rowsUpdated + " rows updated");
}
} catch (Exception e) {
e.printStackTrace();
}
}
return "query";
}
public static ResultSet executeSelect(Connection conn, Query query) {
ResultSet rs = null;
Statement stmt = null;
try {
stmt = conn.createStatement();
rs = stmt.executeQuery(query.getQuery());
while (rs.next()) {
String id = rs.getString("ID");
String firstName = rs.getString("FN_Contact");
String lastName = rs.getString("LN_Contact");
String notes = rs.getString("Notes");
System.out.println("ID: " + id + ", First Name: " + firstName
+ ", Last Name: " + lastName + ", Notes: " + notes);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if(rs!=null){
rs.close();
}
if(stmt != null){
stmt.close();
}
if (conn != null)
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return rs;
}
}

QueryController.executeSelect is calling rs.close(), but then your assertEquals in QueryControllerTest.testQuery are calling methods on testRS. As executeSelect is returning the resultset, closing it first doesn't make sense. Further, executeSelect is being passed the connection, so it shouldn't be closing that either (what happens if the caller wants to do two different selects on the same connection?).

I think the problem is because you are creating two connections. Try to only instantiate the connection of QueryController class for your test. You will need to provide the connection. After you store it in a variable to run the query.
Connection con = QueryController.getConnection ();

NPE - java.lang.reflect.UndeclaredThrowableException

I'm working on web java application with OSGI. I get this error when I try to open JSF page: java.lang.reflect.UndeclaredThrowableException
This is the source code that I'm working on:
package org.DX_57.osgi.SH_27.impl;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.annotation.Resource;
import javax.sql.DataSource;
import org.DX_57.osgi.SH_27.api.SessionHandle;
public class SessionHandleImpl implements SessionHandle {
#Resource(name="jdbc/Oracle")
public DataSource ds;
public String sayHello(String name) {
return "Howdy " + name;
}
public String CheckUserDB(String userToCheck){
String storedPassword = null;
String error_Message = null;
String SQL_Statement = null;
String error_Database;
Connection conn;
try {
conn = ds.getConnection();
try {
conn.setAutoCommit(false);
boolean committed = false;
try {
SQL_Statement = "SELECT Passwd from USERS WHERE Username = ?";
PreparedStatement passwordQuery = conn.prepareStatement(SQL_Statement);
passwordQuery.setString(1, userToCheck);
ResultSet result = passwordQuery.executeQuery();
if(result.next()){
storedPassword = result.getString("Passwd");
}
conn.commit();
committed = true;
} finally {
if (!committed) conn.rollback();
}
}
finally {
conn.close();
}
} catch (SQLException ex) {
ex.printStackTrace();
}
return storedPassword;
}
}
This is the error stack of the Glassfish server: http://pastebin.com/tvHmspjh
I can successfully compile the code but when I try to open JSF page I get error. Maybe I have mistaken the try-catch statements.
Best wishes