[英]Access Denied for database when using JDBC
我正在開發一個名為movieDB
的簡單mariaDB數據庫,並且有一個名為customerAgent
的mariaDB用戶。 我知道在StackOverflow上有很多類似的東西,但是我沒有使用root帳戶,而是具有最低授予權限的普通帳戶。
我可以像這樣通過SSH在終端中訪問數據庫movieDB
:
[root@myServer]# mysql -ucustomerAgent -p123
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 102
Server version: 10.2.12-MariaDB MariaDB Server
Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> USE movieDB;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
MariaDB [movieDB]> show grants;
+----------------------------------------------------------------------------------------------------------------------------+
| Grants for customerAgent@localhost |
+----------------------------------------------------------------------------------------------------------------------------+
| GRANT Customer_Role TO 'customerAgent'@'localhost' |
| GRANT USAGE ON *.* TO 'customerAgent'@'localhost' IDENTIFIED BY PASSWORD '*23AE809DDACAF96AF0FD78ED04B6A265E05AA257' |
| GRANT USAGE ON *.* TO 'Customer_Role' |
| GRANT SELECT ON `movieDB`.* TO 'Customer_Role' |
| GRANT SELECT, INSERT ON `movieDB`.`orders` TO 'Customer_Role' |
+----------------------------------------------------------------------------------------------------------------------------+
5 rows in set (0.00 sec)
MariaDB [movieDB]> select current_role();
+----------------+
| current_role() |
+----------------+
| Customer_Role |
+----------------+
1 row in set (0.00 sec)
MariaDB [movieDB]>
但是,當我在本地主機上執行JDBC代碼時,在stmt.execute("USE movieDB");
行處拒絕訪問stmt.execute("USE movieDB");
:
Access denied for user 'customerAgent'@'localhost' to database 'movidDB'
Java JDBC代碼為:(我已經刪除了該類中的一些不必要的東西,但是如果我錯過了任何重要的事情,請務必指出!)
import java.sql.*;
import java.util.*;
Class movieDBFoundation {
static private String DBServerAddress = "localhost";
static private Connection conn;
static private String getDBServerAddress() {
return DBServerAddress;
}
public static void main(String[] args) {
System.out.println("Connection started.");
if(DBConnect()) {
System.out.println("Connection succedded.");
}
else {
System.out.println("Connection failed.");
return;
}
}
static private Boolean DBConnect() {
String connectString = "jdbc:mysql://" + getDBServerAddress() + ":3306/"
+ "?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&&useSSL=false";
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection(connectString, "customerAgent", "123");
System.out.println("Connection reached.");
Statement stmt;
stmt = conn.createStatement();
String SQL = "USE movidDB";
stmt.execute(SQL);
return true;
} catch (Exception e) {
System.out.println(e.getMessage());
}
return false;
}
}
一些類似問題的答案說JDBC需要數據庫上的所有特權,但這聽起來並不安全。 必須擁有所有特權才能實現我在這里試圖做的事情嗎?
您的問題是數據庫movidDB不存在。 不應該是movieDB嗎?
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