log4j2 JdbcAppender 官网配置

JdbcAppender 构造函数：

@PluginFactory
    public static JdbcAppender createAppender(
            @PluginAttribute("name") final String name,
            @PluginAttribute("ignoreExceptions") final String ignore,
            @PluginElement("Filter") final Filter filter,
            @PluginElement("ConnectionSource") final ConnectionSource connectionSource,
            @PluginAttribute("bufferSize") final String bufferSize,
            @PluginAttribute("tableName") final String tableName,
            @PluginElement("ColumnConfigs") final ColumnConfig[] columnConfigs) {

log4j2.xml：

java：

package net.example.db;
 
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
 
import javax.sql.DataSource;
 
import org.apache.commons.dbcp.DriverManagerConnectionFactory;
import org.apache.commons.dbcp.PoolableConnection;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.dbcp.PoolingDataSource;
import org.apache.commons.pool.impl.GenericObjectPool;
 
public class ConnectionFactory {
    private static interface Singleton {
        final ConnectionFactory INSTANCE = new ConnectionFactory();
    }
 
    private final DataSource dataSource;
 
    private ConnectionFactory() {
        Properties properties = new Properties();
        properties.setProperty("user", "logging");
        properties.setProperty("password", "abc123"); // or get properties from some configuration file
 
        GenericObjectPool pool = new GenericObjectPool();
        DriverManagerConnectionFactory connectionFactory = new DriverManagerConnectionFactory(
                "jdbc:mysql://example.org:3306/exampleDb", properties
        );
        new PoolableConnectionFactory(
                connectionFactory, pool, null, "SELECT 1", 3, false, false, Connection.TRANSACTION_READ_COMMITTED
        );
 
        this.dataSource = new PoolingDataSource(pool);
    }
 
    public static Connection getDatabaseConnection() throws SQLException {
        return Singleton.INSTANCE.dataSource.getConnection();
    }
}