log4j2 jdbc打印

src/test/java/org/sss/presentation/noui/log/db/ConnectionFactory.java

+package org.sss.presentation.noui.log.db;
+
+import com.alibaba.druid.pool.DruidDataSourceFactory;
+
+import javax.sql.DataSource;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.Properties;
+
+public class ConnectionFactory {
+    private final DataSource dataSource;
+
+    private ConnectionFactory() {
+        Properties properties = new Properties();
+        properties.setProperty("driverClassName","com.mysql.jdbc.Driver");
+        properties.setProperty("url","jdbc:mysql://127.0.0.1:3306/test");
+        properties.setProperty("username","root");
+        properties.setProperty("password","666666");
+        properties.setProperty("initialSize","1");
+        properties.setProperty("maxActive","5");
+        properties.setProperty("maxWait","3000");
+        try {
+            this.dataSource = DruidDataSourceFactory.createDataSource(properties);
+        } catch (Exception e) {
+            throw new RuntimeException("创建druid数据源异常",e);
+        }
+    }
+
+    public static Connection getDatabaseConnection() throws SQLException {
+        return Singleton.INSTANCE.dataSource.getConnection();
+    }
+
+    private static interface Singleton {
+        final ConnectionFactory INSTANCE = new ConnectionFactory();
+    }
+}