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JDBC Adapter

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JDBC Adapter is the JDBC adapter for jCasbin. With this library, jCasbin can load policy from JDBC supported database or save policy to it.

Based on Supported JDBC Drivers and Databases, The current supported databases are:

  • MySQL
  • Java DB
  • Oracle
  • PostgreSQL
  • DB2
  • Sybase
  • Microsoft SQL Server

Verified Database

  • MySQL
  • PostgreSQL
  • Microsoft SQL Server

We need more developers to help us verify.


For Maven:



Since version 2.0.2, jdbc-adapter adds an id field to the database table structure by default.

If you want to upgrade to 2.0.2 - 2.2.0, you have to add the id field manually. It is recommended to add the id field. If you don't want to add the id field, please use 2.2.1+.

Simple Example


import org.casbin.adapter.JDBCAdapter;
import org.casbin.jcasbin.main.Enforcer;
import com.mysql.cj.jdbc.MysqlDataSource;

public class Test {
    public static void main() {
        String driver = "com.mysql.cj.jdbc.Driver";
        String url = "jdbc:mysql://localhost:3306/db_name";
        String username = "root";
        String password = "123456";

        // The adapter will use the table named "casbin_rule".
        // Use driver, url, username and password to initialize a JDBC adapter.
        JDBCAdapter a = new JDBCAdapter(driver, url, username, password); 
        // Recommend use DataSource to initialize a JDBC adapter.
        // Implementer of DataSource interface, such as hikari, c3p0, durid, etc.
        MysqlDataSource dataSource = new MysqlDataSource();

        a = JDBCAdapter(dataSource);        

        Enforcer e = new Enforcer("examples/rbac_model.conf", a);

        // Check the permission.
        e.enforce("alice", "data1", "read");

        // Modify the policy.
        // e.addPolicy(...);
        // e.removePolicy(...);

        // Save the policy back to DB.
        // Close the connection.

Getting Help


This project is under Apache 2.0 License. See the LICENSE file for the full license text.