We Keep Coding

Connecting MySQL Database to NetBeans Error

I have a problem when running my code in NetBeans in order to see if mySQL is connected. This is the code:
public static void main(String[] args) {
Connection connect = null;
try{
connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/tUsers?autoReconnect=true/useSSL=TRUE","root","password");
if(connect!=null)
{
System.out.println("Connected");
}
}catch (Exception e)
{
System.out.println("RIP");
}
}
}
when I run it prints out "RIP". When I debugged it line by line, it went from the "connect = DriverManager.getConnection..." to "System.out.println("RIP"), and when I look at the "Exception e" it says "e = (java.sql.SQLNonTransientConnectionException) java.sql.SQLNonTransientConnectionException: Cannot load connection class because of underlying exception: com.mysql.cj.exceptions.WrongArgumentException: Malformed database URL, failed to parse the connection string near '=TRUE'."
Now, why is that?????

I think you need to add
Class.forName("com.mysql.jdbc.Driver"); .
Also, make sure everything in Connection conn = DriverManager.getConnection (String url, String user, String password); are set correctly.
From the url format in your code, it's like you are trying to get direct connect to specific table tUsers in your database. And I dont think that would work. Correct me if I'm wrong whether it's literally your database name or not.
Because the basic url format i know, should be like jdbc:mysql://localhost:3306/yourDBname .
If you already set the url correctly as is written in your post, then the code is
public static void main(String[] args) {
try{
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/tUsers?autoReconnect=true/useSSL=TRUE","root","password");
if(connect!=null)
{
System.out.println("Connected");
}
}catch (Exception e)
{
System.out.println("RIP");
}}}
Hope that could do the work.

NoSuchMethodError while connecting to Hive using Java JDBC

I am trying to connect to hive server using java.
I am runnig the code in Eclipse Oxygen and has Java 8 installed.
private static String driverName = "org.apache.hive.jdbc.HiveDriver";
public static void main(String[] args) throws SQLException
{
try
{
Class.forName(driverName);
}
catch (ClassNotFoundException e)
{
e.printStackTrace();
System.exit(1);
}
Connection con = DriverManager.getConnection("jdbc:hive2://<IP>:port/database", "username", "password");
Statement stmt = con.createStatement();
String sql = "show tables";
stmt.executeQuery(sql);
}
These are the external libraries I am using.
commons-logging-1.2
curator-client-2.0.0-incubating
hadoop-common-3.1.0
hive-exec-3.0.0
hive-jdbc-3.0.0
hive-metastore-3.0.0
hive-service-3.0.0
hive-service-rpc-2.1.0
httpclient-4.5.6
httpcore-4.4.10
libfb303-0.9.3
libthrift-0.9.3
log4j-1.2.17
slf4j-api-1.8.0-beta2
When I run the code I am getting the following error.
java.lang.NoSuchMethodError: org.apache.hive.service.auth.HiveAuthFactory.getSocketTransport(Ljava/lang/String;II)Lorg/apache/thrift/transport/TTransport
I can't figure out what is causing the error. I tried different versions of jars. Am I missing any library? Please help me.

Connecting a Java application to an SQL database with Eclipse

I know this has been asked before but I really can't get this to work and as far as I can see I've followed all the steps.
I'm using Eclipse.
So I downloaded the Microsoft SQL Driver sqljdbc v4.0.
I created a new project and class. I edited the build path by adding the .jar file to the libraries.
I typed the following code:
package com.test.sql;
import java.sql.*;
public class Connect
{
public static void main (String[]args)
{
Connection con = null;
String conURL = "jdbc:sqlserver://localhost; databaseName=AnotherTestDB;";
try
{
con = DriverManager.getConnection(conURL);
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
I got the following error:
java.sql.SQLException: No suitable driver found for jdbc:sqlserver://localhost; databaseName=AnotherTestDB;
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.test.sql.Connect.main(Connect.java:11)
A bit more research and I was told put it in the java /lib/ext and reference it from there.
Nothing changed.
Any help?
Thanks.

Normally you need to register the driver before accessing to it:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

Try with something like this:
String DRIVER = “oracle.jdbc.driver.OracleDriver”;
String DBURL = “jdbc:oracle:thin:#jiplc0.si.ehu.es:1512:Erreala”;
String UID = “USERNAME”;
String PWD = “PASSWORD”;
Driver kontrolatzailea = (Driver) (Class.forName(DRIVER).newInstance());
DriverManager.registerDriver(kontrolatzailea);
DefaultContext test = new DefaultContext(DBURL, UID, PWD, false);
DefaultContext.setDefaultContext(test);

Thanks for the responses.
I had both the sqljdbc4.jar and sqljdbc.jar referenced. The version of Java I am using requires that I use sqljdbc4.jar but it was being overwritten by sqljdbc.jar so I removed it.
I also changed my code to this:
public static void main (String[] args)
{
try
{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String connectionUrl = "jdbc:sqlserver://nameMyLaptop//SQLEXPRESS";
Connection con = DriverManager.getConnection(connectionUrl);
}
//Insert catches
}
Apparently I didn't have to change the code but its not giving me that error now. I'm getting a new one but that's unrelated to my question.
Thanks for your time and responses.

You have to add the SQL JDBC Driver in your project libraries. download jtds.jar and add to your libraries. And follow the code below.
public static void main (String[] args) throws Exception{
Connection conn=null;
String url="jdbc:jtds:sqlserver://YourServerIp:1433/dbName";
String username="sa";
String password="****";
String driver="net.sourceforge.jtds.jdbc.Driver";
// Step 1: Load the JDBC driver.
Class.forName(driver);
// Step 2: Establish the connection to the database.
conn= DriverManager.getConnection(url, username,
password);
}
Here you have to follow two steps......

Connecting to Derby using JDBC

I am trying to connect to Derby database on my locahost using JDBC.
I have started the database using the command: java -jar lib;derbyrun.jar server start, which starts successfully on port 1527.
On another command terminal, I use the command: java -classpath .;lib;derbyclient.jar testsqldatabase.TestSQLDatabase but I get the error below:
java.sql.SQLException: No suitable driver found for jdbc:postgresql:COREJAVA
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at testsqldatabase.TestSQLDatabase.getConnection(TestSQLDatabase.jav
)
at testsqldatabase.TestSQLDatabase.runTest(TestSQLDatabase.java:39)
at testsqldatabase.TestSQLDatabase.main(TestSQLDatabase.java:26)
My datatbase.properties file contains the following lines:
jdbc.drivers=org.postgresql.Driver
jdbc.url=jdbc:postgresql:COREJAVA
jdbc.username=dbuser
jdbc.password=secret
The java program is is listed below:
public class TestSQLDatabase
{
/**
* #param args the command line arguments
*/
public static void main(String[] args) throws IOException
{
try
{
runTest();
}
catch(SQLException ex)
{
for(Throwable t: ex)
t.printStackTrace();
}
}
/*Runs a test by creating a table, adding a value,
showing the table contents, removing the table*/
public static void runTest() throws SQLException, IOException
{
try(Connection conn = getConnection())
{
Statement stat = conn.createStatement();
stat.executeUpdate("CTEATE TABLE Greetings (Message CHAR(20))");
stat.executeUpdate("INSERT INTO Greetings VALUES ('Hello, World!')");
try(ResultSet result = stat.executeQuery("SELECT * FROM Greetings"))
{
if(result.next())
System.out.println(result.getString(1));
}
stat.executeUpdate("DROP TABLE Greetings");
}
}
/*
* Gets a connection from the properties specified in the
* file database.properties. #return the database connection
*/
public static Connection getConnection() throws SQLException, IOException
{
Properties props = new Properties();
try(InputStream in = Files.newInputStream(Paths.get("database.properties")))
{
props.load(in);
}
String drivers = props.getProperty("jdbc.drivers");
if(drivers != null) System.setProperty("jdbc.drivers", drivers);
String url = props.getProperty("jdbc.url");
String username = props.getProperty("jdbc.username");
String password = props.getProperty("jdbc.password");
return DriverManager.getConnection(url, username, password);
}
}
Can anyone figure out why I am getting that error from the second command terminal?
Thanks, much appreciated

Derby is a database. PostgreSQL is a different database. You're running a Derby database and you need the corresponding Derby JDBC driver to talk to it - not the PostgreSQL one.

You want to connect to Derby by using the PostgreSQL driver (in the properties file); also the URL of the database is no written well; it should be: jdbc:${dataBaseVendor}:${server}:${port}/${databaseName} where in your case databaseVendor=derby.
And also make sure you have the Derby JDBC driver jar on your classpath.

JDBC Jtds can't establish a connection

I want to make a access to my sql database than is placed in ASUS\MSSQLSERVER1 and database names "Test" with access to user teste with password teste
in java code I coded this:
#Test
public void TesteTemp() throws SQLException, InstantiationException, IllegalAccessException, ClassNotFoundException
{
Class.forName("net.sourceforge.jtds.jdbc.Driver").newInstance();
String connString = "jdbc:jtds:sqlserver://ASUS/Test;instance=MSSQLSERVER1;user=teste;password=teste;";
Connection conn = null;
try{
conn = DriverManager.getConnection(connString);
}catch(SQLException ex){
ex.printStackTrace();
}
conn.close();
}
And I receive this error:
Server ASUS has no instance named MSSQLSERVER1.
It makes sense?
I have the MSSQLSERVER1 service running.

i resolved the problem.. the code is ok, the problem was than protocols for tcp/ip and named pipes were disabled, i just activated them, now runs ok..
Sql Configuration Manager > Sql Server Network Configuration > Protocols for [Server_Name]