Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Chriss Miller on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

MySQL Connection

Status
Not open for further replies.

Mugiwara

Programmer
Joined
Jan 25, 2011
Messages
9
Location
GB
Hi all,

Code:
Connection conn = null;
    String url = "jdbc:mysql:///mysql12.000webhost.com\\";
    String dbName = "example";
    String driver = "com.mysql.jdbc.Driver";
    String userName = "root"; 
    String password = "root";

	try 
	{
		Class.forName(driver).newInstance();
		out.println(url+dbName +userName +password);
		conn = DriverManager.getConnection(url+dbName, userName,password);
		
		try
		{
			Statement st = conn.createStatement();
			ResultSet res = st.executeQuery("SELECT * FROM  table1");
			out.println("Emp_code: " + "\t" + "Emp_name: ");
			while (res.next())
			{
				String s = res.getString("userid");
				String name = res.getString("Name");
				out.println(s + "\t\t" + name);
			}
		}
		catch (SQLException s)
		{
			out.println("SQL code does not execute.");
		}    
		
		conn.close();
		
    }
	catch (Exception e) 
	{
	}

Class.forName(driver) errors with the following

Code:
org.apache.jasper.JasperException: An exception occurred processing JSP page /heading.jsp at line 19

19: 		Class.forName(driver).newInstance();
20: 		out.println(url+dbName +userName +password);
21: 		conn = DriverManager.getConnection(url+dbName, userName,password);
22: 		


Stacktrace:
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:551)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:440)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)


root cause 

javax.servlet.ServletException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:915)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:844)
	org.apache.jsp.index_jsp._jspService(index_jsp.java:173)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)


root cause 

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
	org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:126)
	org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
	java.lang.Class.forName0(Native Method)
	java.lang.Class.forName(Unknown Source)
	org.apache.jsp.index_jsp._jspService(index_jsp.java:94)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

Is there anything i am missing here?
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top