Java JDBC Connection to ODBC database MySQL database

1.JDBC Connection database to add a Mysql-connector-java-5.1.38-bin.jar library

2.ODBC connecting the database to add an ODBC data source

3. Test code

Dbhelper.java Code JDBC Connection Database

Import java.beans.Statement;
Import Java.sql.DriverManager;
Import com.mysql.jdbc.Connection;
Import com.mysql.jdbc.PreparedStatement;
Import Com.sun.jndi.url.corbaname.corbanameURLContextFactory;

public class DBHelper {
Public final String url = "JDBC:MYSQL://127.0.0.1:3306/SCHOOL?USEUNICODE=TRUE&CHARACTERENCODING=GBK";
Public final String username = "root";//user name
Public final String name = "Com.mysql.jdbc.Driver";
Public final String pswd = null;//password
Public Connection conn = null;//connection
Public PreparedStatement PST = null;//ready to execute SQL statement
Public dbhelper (String sql) {
try {

Class.forName (name);
conn = (Connection) drivermanager.getconnection (URL, username, pswd);
PST = (preparedstatement) conn.preparestatement (SQL);
System.out.println ("JDBC Link database");
} catch (Exception e) {

SYSTEM.OUT.PRINTLN ("Load driver failed" + e.tostring ());
}

}

Public PreparedStatement DBQ () {

return PST;
}
public void Closedb () {
try {
Conn.close ();
Pst.close ();
} catch (Exception e) {

SYSTEM.OUT.PRINTLN ("exception occurred");
}

}

}

Dbhelper1.java code, ODBC connection database

Import java.sql.Connection;
Import Java.sql.DriverManager;
Import java.sql.PreparedStatement;

public class DBHelper1 {
Public final String url= "Jdbc:odbc:TEST";
Public final String name = "Root";
Public final String psd = null;
Public final String name1 = "Sun.jdbc.odbc.JdbcOdbcDriver";
Public Connection conn1 = null;
public PreparedStatement PST = NULL;

Public DBHelper1 (String sql) {
try {

Class.forName (NAME1);
Conn1 = (Connection) drivermanager.getconnection (URL,
Name, PSD);
PST = (preparedstatement) conn1.preparestatement (SQL);
SYSTEM.OUT.PRINTLN ("ODBC Link database! ");
} catch (Exception e) {

SYSTEM.OUT.PRINTLN ("Load driver failed" + e.tostring ());
}

}

Public PreparedStatement DBQ () {

return PST;
}

public void Closedb () {
try {

Conn1.close ();
Pst.close ();
} catch (Exception e) {

SYSTEM.OUT.PRINTLN ("exception occurred");
}

}

}

Entrance of the program: Mainui.java implementation of the program to delete and change
Import java.sql.PreparedStatement;
Import Java.sql.ResultSet;
Import java.sql.SQLException;
Import Java.util.Set;

public class Mainui {

public static void Main (string[] args) {
String Name=null;
String Age=null;
String Id=null;
String sql= "select *from Teacher";
String sql1= "INSERT into teacher values (?,?,?)";
String sql2= "Update teacher set age=age+1 where tid=?";
String sql3= "Delete from teacher where tid=?";
PreparedStatement Pst=null;
try {
//************************************************************************************************//
Query information
//************************************************************************************************//
DBHelper dbhelper=new dbhelper (SQL);//Generate database objects prepare to execute SQL statements
PST=DBHELPER.DBQ ();//Return object PST
Pst.setstring (1, "1234");//Assign a value to a placeholder
ResultSet ret=pst.executequery ();//Execute SQL statement get result set
while (Ret.next ())//Check out result set
{
Id=ret.getstring (1);
Name=ret.getstring (2);
Age=ret.getstring (3);
System.out.println (id+ "," +name+ "," +age ");
}
Dbhelper.closedb ();





//************************************************************************************************//
Inserting information
//************************************************************************************************//
DBHelper dbhelper1=new DBHelper (SQL1);
PST=DBHELPER1.DBQ ();
Pst.setstring (1, "1239");
Pst.setstring (2, "Wang er");
Pst.setstring (3, "54");
int f=pst.executeupdate ();
System.out.println (f);
if (f!=0)
{
System.out.println ("Insert record successfully! ");

}
else {

System.out.println ("Insert record Failed");
}
Dbhelper1.closedb ();




//************************************************************************************************//
Modify Information
//************************************************************************************************//

DBHelper dbhelper2=new DBHelper (SQL2);
PST=DBHELPER2.DBQ ();
Pst.setstring (1, "1234");
int t=pst.executeupdate ();
if (t!=0)
{
SYSTEM.OUT.PRINTLN ("Update succeeded! ");
}
else {
System.out.println ("Update failed! ");
}
Dbhelper2.closedb ();

//**********************************************************************************************//
Delete Information
//********************************************************************************************//
DBHelper1 dbhelper3=new DBHelper1 (SQL3);
PST=DBHELPER3.DBQ ();
Pst.setstring (1, "1239");
int d=pst.executeupdate ();
if (d!=0)
{
System.out.println ("Delete succeeded! ");

}
else {
System.out.println ("Delete failed! ");
}
Dbhelper3.closedb ();

} catch (Exception e) {
System.out.println (E.tostring ());
}

}

}

Java JDBC Connection to ODBC database MySQL database