如何解决从 oracle 11g jdbc 7/14 jdk 1.7 中的读取调用中得到减一的问题? [英] how to resolve Got minus one from a read call in oracle 11g jdbc 7/14 jdk 1.7?

问题描述

我使用的是 netbeans 和 jdk 7 updt 9 和 1.7，以下是我的代码.

I am using netbeans and jdk 7 updt 9 with 1.7 and following is my code.

public class jd {
    public static void main(String[] args) throws ClassNotFoundException, SQLException 
{
        
        Class.forName("oracle.jdbc.driver.OracleDriver");
        Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1158:ORCL","system", "system");
        System.out.println("Connection successful");
       // Statement s = con.createStatement();
       
    }
    
}

输出是

 run:
    Exception in thread "main" java.sql.SQLRecoverableException: IO Error: Got minus one from a read call
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:673)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:715)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:385)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:30)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:564)
        at java.sql.DriverManager.getConnection(DriverManager.java:571)
        at java.sql.DriverManager.getConnection(DriverManager.java:215)
        at jd.main(jd.java:22)
    Caused by: oracle.net.ns.NetException: Got minus one from a read call
        at oracle.net.ns.Packet.receive(Packet.java:314)
        at oracle.net.ns.NSProtocolStream.negotiateConnection(NSProtocolStream.java:153)
        at oracle.net.ns.NSProtocol.connect(NSProtocol.java:263)
        at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1360)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:486)
        ... 7 more

Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

推荐答案

DriverManager 在尝试使用无效 URL 获取连接时抛出此错误.确保您的 URL 有效.结帐事项:

DriverManager throws this error when it tries to get a connection with invalid URL. Make sure your URL is valid. Things to checkout:

1. 端口:Oracle db 在 1521 上运行.(注意:不要将自己与 oracle 的 webport 混淆，它可以是您的 URL 1158 中的任何其他端口).
2. DB 名称:从 Oracle Web UI 获取数据库名称:(home->adminIstration->aboutdatabase->settings)
3. URL 格式:"jdbc:oracle:thin:@localhost:1521:YourDbName"

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