Oracle 开发篇+Java通过DRCP访问Oracle数据库

• 标签：DRCP、Database Resident Connection Pooling、数据库驻留连接池
• 释义：DRCP（全称Database Resident Connection Pooling）数据库驻留连接池（Oracle自己的数据库连接池技术）

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★ Oracle开启并配置DRCP

sqlplus / as sysdba
SQL > execute dbms_connection_pool.start_pool();
SQL > execute dbms_connection_pool.alter_param('','minsize','1');
SQL > execute dbms_connection_pool.alter_param('','maxsize','1');
重启生效

★ Java代码

package PAC_001;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.SQLException;
import oracle.jdbc.pool.OracleDataSource;
public class CLA_oracle {
	public static void main(String args[]) throws SQLException {
		OracleDataSource ods = null;
		Connection conn = null;
		Statement stmt = null;
		ResultSet rset = null;
		ods = new OracleDataSource();
		ods.setURL("jdbc:oracle:thin:@1.1.1.9:1521/prodpdb1:pooled");
		ods.setUser("zzt");
		ods.setPassword("zzt");
		conn = ods.getConnection();
		try {
			stmt = conn.createStatement();
			rset = stmt.executeQuery("SELECT count(*) FROM zzt.emp");
			while (rset.next())
				System.out.println(rset.getString(1));
		}
		finally {
			if (rset != null)
				rset.close();
			if (stmt != null)
				stmt.close();
			if (conn != null)
				conn.close();
		}
	}
}

 

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