Question

我编写了一个java程序来同步两个不同远程数据库上的两个表。

如果用户名或密码中没有任何特殊字符，程序可以正常连接到两个数据库，否则，它会成功连接到第一个数据库，但在第二个数据库上失败。

假设我的系统属性“oracle.net.tns_admin”设置正确并且tnsname.ora文件没有问题。我有三个数据库，包括tnsname，username，密码，如：

“TESTDB1”， “AAA”， “AAA”！
“TESTDB2”， “BBB”， “BBB”！
“TESTDB3”，“CCC”，“CCC” //密码部分没有特殊字符。

以下是我的测试用例和程序的返回值：

1＆GT;测试用例1：连接到两个数据库1到2：

 Source DB:[TESTDB1, AAA, AAA!]  Connect Successfully to source DB! 
 Dest DB:[TESTDB2, BBB, BBB!]  Connect to dest DB failed!

2 - ;测试用例2：连接到同一个数据库两次：

 Source DB:[TESTDB1, AAA, AAA!]  Connect Successfully to source DB! 
 Dest DB:[TESTDB1, AAA, AAA!]  Connect to dest DB failed!

3＆GT;测试用例3：连接到两个数据库1到3：

 Source DB:[TESTDB1, AAA, AAA!]  Connect Successfully to source DB! 
 Dest DB:[TESTDB3, CCC, CCC]   Connect Successfully to dest DB!

4＆GT;测试用例4：连接到两个数据库3 TO 1：

 Source DB:[TESTDB3, CCC, CCC]   Connect Successfully to source DB! 
 Dest DB:[TESTDB1, AAA, AAA!]  Connect to dest DB failed!

仅测试案例3成功。失败的消息是：“ORA-01017：用户名/密码无效;登录被拒绝。”对于失败的连接。因此，如果第二个数据库的用户名或密码中有特殊字符，那么部分原因是程序无法连接到数据库的原因？你可以尝试下面的程序并测试一下吗？

完整代码:(您必须拥有oracle数据库并将“oracle.net.tns_admin”配置为tnsname.ora文件的路径）

import java.sql.*; 
import java.util.Arrays;
import oracle.jdbc.OracleDriver;
public class JDBCTest {
    public boolean success = false; 

    public JDBCTest() {
        System.setProperty("oracle.net.tns_admin", "S:\\"); // Modify your path here
    }

    public static void debug(Object obj) {
        System.out.println(obj);
    } 
    public String processSync(String[] sourceConfig, String[] descConfig) {
        String vReturn = "Successfully copied the data from " + sourceConfig[0] + " to "
                + descConfig[0];
        String thinConn = "jdbc:oracle:thin:@" + sourceConfig[0];
        String username = sourceConfig[1];
        String password = sourceConfig[2];
        Connection conn1 = null;
        Statement statement = null;
        try {
            DriverManager.registerDriver(new OracleDriver());
            debug("Source DB:"+Arrays.asList(sourceConfig));
            conn1 = DriverManager.getConnection(thinConn, username,
                    password);
            conn1.setAutoCommit(false);
            statement = conn1.createStatement();
            debug("Connect Successfully to source DB!");
        } catch (SQLException sqle) {
            vReturn="Connect to source DB failed!"+"["+sqle.getMessage()+"]";
            debug("Connect to source DB failed!");
        }

        thinConn = "jdbc:oracle:thin:@" + descConfig[0].trim();
        password = descConfig[1].trim();
        username = descConfig[2].trim(); 
        Statement statement2 = null;
        Connection conn2 = null;
        try { 
            DriverManager.registerDriver(new OracleDriver());
            debug("Dest DB:"+Arrays.asList(descConfig));
            conn2 = DriverManager.getConnection(thinConn, username,
                    password);
            conn2.setAutoCommit(false);
            statement2 = conn2.createStatement();
            debug("Connect Successfully to dest DB!");
        } catch (SQLException sqle) {
            vReturn="Connect to dest DB failed!"+"["+sqle.getMessage()+"]";
            debug("Connect to dest DB failed!");
        }

        if (conn1 != null && conn2 != null) { 
            debug("Successfully connect to both Databases");
        }else{
            return vReturn;
        }
        success = true; 
        return vReturn; 
    } 
    public static void main(String[] args) throws Exception { 
        JDBCTest newTest = new JDBCTest();  
    String[] sourceConfig={"TESTDB1","AAA","AAA!"};
    String[] descConfig={"TESTDB2","BBB","BBB!"}; //{"TESTDB3","CCC","CCC"};
        newTest.processSync(sourceConfig, descConfig);
    }

}

Answer 1

你换了conn2的用户名和密码。

   password = descConfig[1].trim();
   username = descConfig[2].trim();

应该是

  username = descConfig[1].trim();
  password = descConfig[2].trim();

JDBC：通过tnsname奇怪错误连接到Oracle DB

1 个答案: