如何在JavaSpringboot中使用jdbcTemplate将整数数组插入postgresql表？

Question

我在向Postgresql表中插入整数数组时遇到问题，我该怎么做？

String sql = "INSERT INTO draw_result (id, ball_numbers,  balls_with_mega_ball, draw_dates, mega_plier) VALUES(?, ?, ?, ?, ?)";
        Object[] params = {randomNumbers, ballNumbers, ballNumbersMegaBall, drawDates, megaPlier};
        jdbcTemplate.update(sql, params);

其中ball Numbers和ball NumbersMegaBall是ArrayList。用两位数填充。

以下是PostgreSQL表：

CREATE TABLE public.draw_result
(
id bigint NOT NULL,
draw_dates date, 
ball_numbers bigint[],
balls_with_mega_ball bigint[],
mega_plier bigint,
CONSTRAINT draw_result_pkey PRIMARY KEY (id)
)

这是来自Springboot的错误：

出现意外错误（类型=内部服务器错误，状态=500）。PreparedStatementCallback；错误的SQL语法[INSERT in draw_result（id，

Answer 1

最近我也遇到了类似的问题。我的解决方案：

public void setDrawResult(BigInteger id, List<BigInteger> ballNumbers, List<BigInteger> ballsWithMegaBall, Date drawDates,BigInteger megaPlier){

    String sql = "INSERT INTO draw_result (id, ball_numbers,  balls_with_mega_ball, draw_dates, mega_plier) VALUES(?, ?, ?, ?, ?)";
    jdbcTemplate.update(sql
            , id
            , createSqlArray(ballNumbers)
            , createSqlArray(ballsWithMegaBall)
            , drawDates
            , megaPlier
    );
}

private java.sql.Array createSqlArray(List<BigInteger> list){
    java.sql.Array intArray = null;
    try {
        intArray = jdbcTemplate.getDataSource().getConnection().createArrayOf("bigint", list.toArray());
    } catch (SQLException ignore) {
    }
    return intArray;
}