daoadresseservice/db/DbConnectionProbe.java

package dk.daoas.daoadresseservice.db;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


@WebServlet("/DbConnectionProbe")
public class DbConnectionProbe extends HttpServlet {
        private static final long serialVersionUID = 1L;
       
    public DbConnectionProbe() {
        super();
        // TODO Auto-generated constructor stub
    }

        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                response.setContentType("text/html");
                PrintWriter out = response.getWriter();
                
                //out.print("<html><head><title>DaoAdresseService</title></head><body>");
                //out.print("<h2>DaoAdresseService</h2>");
                
                try (
                        Connection conn = DBConnection.getConnection(); 
                        Statement stmt = conn.createStatement()
                        ) {
                        
                        out.print("Got DB Connection<br>");
                        
                        stmt.executeQuery("SELECT 1");
                        
                        out.print("'SELECT 1' query ok");
                        
                        
                } catch (SQLException e)  {
                        out.print("DB Connection failed: " + e.getMessage());
                }
                
                
        }

}
1	package dk.daoas.daoadresseservice.db;
2
3	import java.io.IOException;
4	import java.io.PrintWriter;
5	import java.sql.Connection;
6	import java.sql.SQLException;
7	import java.sql.Statement;
8
9	import javax.servlet.ServletException;
10	import javax.servlet.annotation.WebServlet;
11	import javax.servlet.http.HttpServlet;
12	import javax.servlet.http.HttpServletRequest;
13	import javax.servlet.http.HttpServletResponse;
14
15
16	@WebServlet("/DbConnectionProbe")
17	public class DbConnectionProbe extends HttpServlet {
18	private static final long serialVersionUID = 1L;
19
20	public DbConnectionProbe() {
21	super();
22	// TODO Auto-generated constructor stub
23	}
24
25	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
26	response.setContentType("text/html");
27	PrintWriter out = response.getWriter();
28
29	//out.print("<html><head><title>DaoAdresseService</title></head><body>");
30	//out.print("<h2>DaoAdresseService</h2>");
31
32	try (
33	Connection conn = DBConnection.getConnection();
34	Statement stmt = conn.createStatement()
35	) {
36
37	out.print("Got DB Connection<br>");
38
39	stmt.executeQuery("SELECT 1");
40
41	out.print("'SELECT 1' query ok");
42
43
44	} catch (SQLException e) {
45	out.print("DB Connection failed: " + e.getMessage());
46	}
47
48
49	}
50
51	}