如何为 JDBC Connection 设置时区，避免找不到 SqlException 时区?

2022-01-24 00:00:00 connection oracle jdbc java sqlexception

我在尝试创建 Connection 对象以处理来自命令行 Java 应用程序和 Oracle 数据库的连接时遇到以下问题.

I have the following problem trying to create a Connection object to handle the connection from a command line Java application and an Oracle database.

所以我有一个包含 ma​​in() 方法的 Main 类，这个:

So I have a Main class that contains the main() method, this one:

import java.sql.*;
import oracle.jdbc.OracleDriver;

public class Main {

    public static void main(String[] args) {
        System.out.println("Hello World !!!");

        String partitaIVA = args[0];
        String nomePDF = args[1];

        Connection conn = null;
        Statement  stmt = null;

        try {
            Class.forName ("oracle.jdbc.OracleDriver");
            // Step 1: Allocate a database "Connection" object
            conn = DriverManager.getConnection("jdbc:oracle:thin:@XXX.XXX.XXX.XXX:1521:eme1", "myUserName", "myPswd"); // Oracle DB

        } catch(SQLException ex) {
            ex.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }
}

问题是当我尝试执行此指令时:

The problem is that when I try to perform this instruction:

conn = DriverManager.getConnection("jdbc:oracle:thin:@XXX.XXX.XXX.XXX:1521:eme1", "myUserName", "myPswd"); // Oracle DB

我得到这个异常:

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01882: timezone region  not found

    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450)
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:392)
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:385)
    at oracle.jdbc.driver.T4CTTIfun.processError(T4CTTIfun.java:1018)
    at oracle.jdbc.driver.T4CTTIoauthenticate.processError(T4CTTIoauthenticate.java:497)
    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:522)
    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:257)
    at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:433)
    at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:950)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:639)
    at oracle.jdbc.driver.PhysicalConnection.connect(PhysicalConnection.java:662)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:560)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:185)
    at Main.main(Main.java:21)

所以，我记得在使用此数据库的其他一些应用程序中，有必要设置时区或类似的东西(但现在我无法访问这些应用程序).

So, I remember that in some other applications that works with this DB it was necessary to set the timezone or something like this (but now I can't access to these applications).

那么，我该如何解决这个问题?我可以以编程方式为我的 Connection 设置时区吗?

So, how can I fix this issue? Can I set programmatically the timezone for my Connection?

Tnx

推荐答案

在尝试连接之前写下:

TimeZone timeZone = TimeZone.getTimeZone("yourTimeZone"); // e.g. "Europe/Rome"
TimeZone.setDefault(timeZone);

所以整个代码是:

try {
    TimeZone timeZone = TimeZone.getTimeZone("yourTimeZone");
    TimeZone.setDefault(timeZone);
    Class.forName("oracle.jdbc.OracleDriver");
    conn = DriverManager.getConnection("connStr", "myUserName", "myPswd");
    ...

如果这不起作用，则问题可能是无效的 JDBC 驱动程序版本.

If this does not work, the problem may be an invalid JDBC driver version.

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