javax.naming.NoInitialContextException与mysql DataSource
javax.naming.NoInitialContextException与mysql DataSource
提问于 2013-11-16 08:43:11
试图连接到MySQL数据库
MysqlDataSource mysqlDs = new MysqlDataSource();
Properties prop = new Properties();
String mysqlDataSourceDriver = "com.mysql.jdbc.jdbc2.optional.MysqlDataSource";
Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY, mysqlDataSourceDriver);
properties.put(Context.PROVIDER_URL , "jdbc:mysql://localhost:3306/database");
Context ctx = new InitialContext(prop);
ctx.bind("jdbc/wczasy", mysqlDs);还有堆叠痕迹：
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:344)
at javax.naming.InitialContext.bind(InitialContext.java:419)
at src.wczasy.database.Connector.connect(Connector.java:53)
at src.wczasy.Wczasy.main(Wczasy.java:10)由行引起: ctx.bind("jdbc/wczasy"，mysqlDs)；我被困住了，有人能帮我吗？谢谢。
回答 1
Stack Overflow用户
回答已采纳
发布于 2013-11-16 09:28:34
这是因为MysqlDataSource没有实现javax.naming.spi.InitialContextFactory接口。
如果您不在容器中，则可以使用rmi注册表。类似于：
try{
startRegistry();
InitialContext context = createContext();
MysqlDataSource mysqlDs = new MysqlDataSource();
context.rebind("jdbc/wczasy", mysqlDs);
} catch (Exception e) {
System.out.println("Error while binding: " + e.getMessage());
e.printStackTrace();
}
private static void startRegistry() throws RemoteException {
LocateRegistry.createRegistry(1099);
System.out.println("RMI registry ready.");
}
private static InitialContext createContext() throws NamingException {
Properties env = new Properties();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.registry.RegistryContextFactory");
env.put(Context.PROVIDER_URL, "rmi://localhost:1099");
InitialContext context = new InitialContext(env);
return context;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/20016503
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