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Need Help with jsp in Eclipse talking to MySQL database

Posted on 2007-11-24
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Last Modified: 2013-12-02
I have this skeleton Framework for a jsp server app in Eclipse running tomcat 6.x and external MySQL server.

After some initial tweaking this seems to at least run without errors, suggesting that I am connecting to the database.  I did, however, have to add the following two .jar files to the Referenced Libraries path in my project.  Is it normal to have to do that?  Can I not add these to the eclipse libraries or plug-ins so that I won't have to add them for each application that uses MySQL, and why do I have to add aspectj-1.5.3.jar.  It seems that this is necessary.

mysql-connector-java-5.1.5-bin.jar
aspectj-1.5.3.jar

My main question is:

How can I verify that the database connection is working and what other code can I use to test the driver (i.e. insert, removing, joining, etc).  With the way I have it configured it seems to be connecting but I'm not getting any output despite a non-empty database.

I do have the ability to create and manipulate a database using phpmyadmin or similar tool, so I would appreciate some instructions on how to set up a test database and how to access it via the .jsp page using struts and or java code.

Thanks.
<%@ page language="java" import="java.sql.*" pageEncoding="UTF-8"%>

<%

Class.forName("com.mysql.jdbc.Driver").newInstance(); 

Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/confluence","user","pass");

Statement stmt = con.createStatement();  

String query = "SELECT * from content"; 

ResultSet rs = stmt.executeQuery(query); 

System.out.println(rs); 

while (rs.next()) { 

String s = rs.getString("CONTENTTYPE"); 

System.out.println(s); 

}

%>    

<%String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>
 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <base href="<%=basePath%>">

    

    <title>My JSP 'index.jsp' starting page</title>

	<meta http-equiv="pragma" content="no-cache">

	<meta http-equiv="cache-control" content="no-cache">

	<meta http-equiv="expires" content="0">    

	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

	<meta http-equiv="description" content="This is my page">

	<!--

	<link rel="stylesheet" type="text/css" href="styles.css">

	-->

  </head>

  

  <body>

    This is my JSP page. <br>

  </body>

</html>

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Question by:sscotti
2 Comments
 
LVL 17

Accepted Solution

by:
contactkarthi earned 500 total points
ID: 20355764
instead of System.out.println give out.println so that you can see the output in jsp

here is a link for a good tutorial on Struts
http://www.roseindia.net/struts/
0
 
LVL 5

Author Closing Comment

by:sscotti
ID: 31410830
Not quite what I was looking for but it helped.  I can use the struts reference and I was able to figure it out.  
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