Question

我的问题只发生在Jelastic云服务器节点上，而不是本地机器上。

我做过这些：

我已将mysql jar驱动程序上传到glassfish的lib文件夹
我创建了连接池，ping成功
我创建了数据源

但是当我运行以下JSP时：

<%@page import="java.io.Writer"%>
<%@page import="javax.sql.DataSource"%>
<%@page import="java.sql.Connection"%>
<%@page import="javax.naming.InitialContext"%>
<%@page import="javax.naming.Context"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
  </head>
  <body>
    <h1>Hello World!</h1>
    <%
    InitialContext ctx = new InitialContext();
    DataSource ds = (DataSource)ctx.lookup("jdbc/rook-server");
    Connection conn = ds.getConnection();
    %>
  </body>
</html>

我收到以下错误：

HTTP Status 500 -

type Exception report

message

descriptionThe server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: java.sql.SQLException: Error in allocating a connection. Cause: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

java.sql.SQLException: Error in allocating a connection. Cause: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

javax.resource.spi.ResourceAllocationException: Error in allocating a connection. Cause: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

com.sun.appserv.connectors.internal.api.PoolingException: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

com.sun.appserv.connectors.internal.api.PoolingException: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

com.sun.appserv.connectors.internal.api.PoolingException: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
root cause

javax.resource.ResourceException: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource
note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 3.1.1 logs.

GlassFish Server Open Source Edition 3.1.1

Answer 1

我来自Jelastic团队。我们现在正在分析这个问题。当我们找到原因时，我们会通知您。尝试重新启动GlassFish，也许这会有所帮助。问候，码头

Jelastic Glassfish连接池 - 上下文

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