A simple Java servlet that looks for some well known databases drivers.
import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class TestDB extends HttpServlet { public void tryDataBase(String name, String url, PrintWriter out){ String fail = "<span style="\">fail</span>"; String sucess = "<span style="\">Ok</span>"; out.println("Looking for the "+ name +" driver..."); try { Class.forName(url); out.println(sucess); } catch (ClassNotFoundException ex) { out.println(fail); } out.println(" "); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println("Looking for databases"); out.println(" <h1>Looking for databases</h1> "); tryDataBase("MySQL", "com.mysql.jdbc.Driver", out); tryDataBase("Derby", "org.apache.derby.jdbc.EmbeddedDriver", out); tryDataBase("PostgreSQL", "org.postgresql.Driver", out); tryDataBase("Oracle", "oracle. jdbc.driver.OracleDriver", out); tryDataBase("SQLite", "org.sqlite.JDBC", out); out.println(""); } finally { out.close(); } } } |
When compiling and running this make sure you put your drivers in your classpath.
A example of output: