Java 将参数绑定为 PostgreSQL 数组

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时间:2020-08-12 09:55:37  来源:igfitidea点击:

Binding parameter as PostgreSQL array

javasqlpostgresqljdbc

提问by Ree

I'm trying to bind a prepared statement parameter which is a "multidimensional" PostgreSQL array. Here's an array example (column type is numeric[]):

我正在尝试绑定一个准备好的语句参数,它是一个“多维”PostgreSQL 数组。这是一个数组示例(列类型为numeric[]):

{{1,10},{2,20}}

How do I bind a value like that using a prepared statement? I tried:

如何使用准备好的语句绑定这样的值?我试过:

stmt.setObject(1, "{{1,10},{2,20}}", Types.ARRAY);

It didn't work:

它没有用:

Cannot cast an instance of java.lang.String to type Types.ARRAY

无法将 java.lang.String 的实例转换为 Types.ARRAY

Any ideas?

有任何想法吗?

采纳答案by Roman Pekar

Try something like this (untested):

尝试这样的事情(未经测试):

                ------------------ your connection
                V
Array inArray = conn.createArrayOf("integer", new Integer[][] {{1,10},{2,20}});
stmt.setArray(1, inArray);

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