java.sql.SQLRecoverableException : The Network Adapter could not establish the connection

Question

这是我正在使用的代码(Oracle 数据库连接):

try {
        Class.forName("oracle.jdbc.driver.OracleDriver");
        Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@loclahost:1521:XE","system","system");
        System.out.println("connection is established");
        Statement stmt=conn.createStatement();
        int i=stmt.executeUpdate("insert table students ( name varchar2(15),mobile number(10),age varchar2(1))");
        System.out.println("Save Sucessfully");
        stmt.close();
        conn.close();
} catch(Exception e) {
    System.out.println(e);
}
this.dispose();

出现以下错误:

java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection

Answer 1

您的连接字符串中有拼写错误 - 请使用 localhost 而不是 loclahost