连接池

package com.stone.test;
import java.sql.Connection;
import java.sql.SQLException;
import org.apache.commons.dbcp.BasicDataSource;

public class ConnectionPool {
    private static BasicDataSource bs;
    public static BasicDataSource getDataSource() {
        if (bs == null) {
            bs = new BasicDataSource();
            bs.setDriverClassName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            bs.setUrl("jdbc:sqlserver://localhost:1433;DatabaseName=wepull");
            bs.setUsername("sa");
            bs.setPassword("123");
            bs.setMaxActive(5);
        }
        return bs;
    }
    public static void main(String[] args) {
        try {
            Connection con = ConnectionPool.getDataSource().getConnection();
            con.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

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