DBCP 数据源获取连接

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    private int M1() {
        int res = -1;
        try {
            Connection conn = getConnection();
            String sql = "UPDATE `user` set money=666 where id=?";
            Object[] objs = new Object[]{"1"};
            res = JdbcUtils.executeUpdate(conn, sql, objs);
            System.out.println(res);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return res;

    }

    private Connection getConnection() throws SQLException {
        BasicDataSource bs = new BasicDataSource();
        bs.setDriverClassName("com.mysql.jdbc.Driver");
        bs.setUrl("jdbc:mysql://localhost:3306/jdbc");
        bs.setUsername("root");
        bs.setPassword("xxxxxx");
        bs.setInitialSize(20);
        Connection connection = bs.getConnection();
        return connection;
    }

原文地址：https://www.cnblogs.com/kikyoqiang/p/11780595.html