连接ORACLE时候出错:
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*"%>
<html>
<body>
<%Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc
racle:thin
si888:1521:eam_si888";
//orcl为你的数据库的SID
String user="scott";
String password="tiger";
Connection conn= DriverManager.getConnection(url,user,password);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from emp";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()) {
%>
您的第一个字段内容为:<%=rs.getString(1)%>
您的第二个字段内容为:<%=rs.getString(2)%>
<%
}
%>
<%out.print("数据库操作成功,恭喜你");%>
<%rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
我测试时候,是报错,如下:
JSP Error
--------------------------------------------------------------------------------
异常:
java.sql.SQLException: Io 异常: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=153092352)(ERR=12505)(ERROR_STACK=(ERROR=(CODE=12505)(EMFI=4))))
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:323)
at oracle.jdbc.driver.OracleConnection.(OracleConnection.java:263)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java, Compiled Code)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at java.sql.DriverManager.getConnection(DriverManager.java:457)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at _d7i._tests._jspService(_tests.java, Compiled Code)
at oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:119)
at oracle.jsp.app.JspApplication.dispatchRequest(JspApplication.java:385)
at oracle.jsp.JspServlet.doDispatch(JspServlet.java:259)
at oracle.jsp.JspServlet.internalService(JspServlet.java, Compiled Code)
at oracle.jsp.JspServlet.service(JspServlet.java:148)
at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code)
at org.apache.jserv.JServConnection.processRequest(JServConnection.java, Compiled Code)
at org.apache.jserv.JServConnection.run(JServConnection.java, Compiled Code)
at java.lang.Thread.run(Thread.java, Compiled Code)
请问是什么原因的错????那里可以改正???来信请发:bqz88@21cn.com