Spring数据JPA将无符号BITINT强制转换为Long而不是BigInteger

Question

I have a unsigned bigint(20) column in my database table.

mysql driver version
8.0.14

My JPA entity looks like:

BigInteger columnName;

Problem is when I try to get data using the following select query:

select * from table where columnName in (large number [unsigned bigint])

I get the following error:

java.sql.SQLDataException: Value '13,224,435,352,132,323,241' is outside of valid range for type java.lang.Long
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:114)
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
        at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)
        at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:92)
        at com.mysql.cj.jdbc.result.ResultSetImpl.getLong(ResultSetImpl.java:923)
        at com.mysql.cj.jdbc.result.ResultSetImpl.getLong(ResultSetImpl.java:928)

So I saw the code for ResultSetImpl found this

case BIGINT:
    return Long.valueOf(getLong(columnIndex));

case BIGINT_UNSIGNED:
    return getBigInteger(columnIndex);

but it was still calling getLong() even though data type in table was unsigned bigint(20).

One way around which I see is to write a custom repository and do the parsing.

Wanted to ask have any of you faced this issue, If yes how have you gone about it ?

Thanks.

Answer 1

You have not presented your DDL (Data Definition Language) for your datatype, so I cannot be sure what your datatype in the database actually is actually. What you can do is cast it within your query using cast() function. So, your query would look like this:

select column, column, cast(bigint_unsigned_column as unsigned bigint), column
from table where columnName in (large number [unsigned bigint])

Answer 2

更新：我通过将jdbcTemplate与rowMapper一起使用来将有问题的列转换为Biginteger / BigDecimal来解决此问题