JNDI 初学 NoInitialContextException

[boxiuzhen]

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;

public class JndiLookUp {
	public static void main(String[] args) {
		Context ctx = null;
		Connection con = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		try {
			// 1.连接jndi服务器
			Hashtable<String, String> env = new Hashtable<String, String>();
			env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
			env.put(Context.PROVIDER_URL, "file:c:/jdbc");
			ctx = new InitialContext();

			DataSource ds = (DataSource) ctx.lookup("ora20");
			con = ds.getConnection();
			ps = con.prepareStatement("select * from m_users");
			ps.executeQuery();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

我已经加了ojdbc14.jar,fscontext.jar和providerutil.jar
为什么上面的代码执行完后,会出现下面的异常

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:645)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:325)
at javax.naming.InitialContext.bind(InitialContext.java:400)
at JndiBind.main(JndiBind.java:29)

[boxiuzhen]

我自己解决了,谁帮我顶,就给谁分

[meander]

接分，怎么解决的啊

[网站推广优化yetaoaiueo]

呵呵

顶


是改了LOG里的路径吧

[jww_in_windows]

[Quote=引用楼主 boxiuzhen 的帖子:]
Java codeimport java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;

public class JndiLookUp {
public static void main(String[] args) {
Context ctx = null;
Connection con = null;
PreparedStatement ps = n…
[/Quote]
怎么解觉的?
另外你代码context, connection, statement ,resultset 为什么都没关闭
try {
} catch(..) {
} finally {
if (ctx != null) {
ctx.close();
}
if (rs != null) {
rs.close();
}
...ps.close(), con.close()
}

[humanity]

^_^ 确实是简单错误。

[xinglongjian]

顶一下，学习了。