ORA-01017：无效的用户名/密码; 登录被拒绝

Question

我正在使用带有日食氧气的Oracle 11g，正在尝试建立Jdbc连接，并且正在使用连接语句

Connection con = DriverManager.getConnection("jdbc:oracle:thin:testuser/testuser@localhost");

我确定用户名和密码正确，但是仍然可以

java.sql.SQLException: ORA-01017: invalid username/password; logon denied

    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:440)
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:389)
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:382)
    at oracle.jdbc.driver.T4CTTIfun.processError(T4CTTIfun.java:573)
    at oracle.jdbc.driver.T4CTTIoauthenticate.processError(T4CTTIoauthenticate.java:431)
    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:445)
    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191)
    at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:366)
    at oracle.jdbc.driver.T4CTTIoauthenticate.doOAUTH(T4CTTIoauthenticate.java:752)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:366)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:536)
    at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:228)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at JDBC.main(JDBC.java:12)

有人可以帮忙吗？

Answer 1

也许您可以尝试使用JAVASE教程中的以下代码段：

Connection conn = null;
Properties connectionProps = new Properties();
connectionProps.put("user", this.userName);
connectionProps.put("password", this.password);

if (this.dbms.equals("mysql")) {
    conn = DriverManager.getConnection(
               "jdbc:" + this.dbms + "://" +
               this.serverName +
               ":" + this.portNumber + "/",
               connectionProps);
} else if (this.dbms.equals("derby")) {
    conn = DriverManager.getConnection(
               "jdbc:" + this.dbms + ":" +
               this.dbName +
               ";create=true",
               connectionProps);
}
System.out.println("Connected to database");
return conn;

编辑：或者也许您可以尝试指定用户和密码，如下所示：

Connection conn = DriverManager.getConnection("
     jdbc:oracle:thin:@localhost:1521:example", "example","password123");

Answer 2

您在数据库中具有默认的区分大小写的用户名和密码。 必须区分大小写正确输入用户名和密码，或者更改Oracle sec_case_sensitive_logon=false的认证参数。

Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL> show parameter sec_case

NAME                                 TYPE        VALUE
------------------------------------ ----------- -----------------------------
sec_case_sensitive_logon             boolean     TRUE
SQL> alter system set sec_case_sensitive_logon=false scope=both;

System altered.

SQL> show parameter sec_case

NAME                                 TYPE        VALUE
------------------------------------ ----------- -----------------------------
sec_case_sensitive_logon             boolean     FALSE
SQL>