Reading json with more than 16 digits is converted to scientific notation

[mokexinxin]

When I use it, the parameters passed in are： {'a':11111111111111111111111111111111}

The result I got is： {"a":1.1111111111111112E31}

I want to get the number itself, not the scientific notation. Is there a solution?

[lihaoyi]

Should be fixed by https://github.com/com-lihaoyi/upickle/pull/521, which allows you to parse the number as a String if you want to preserve the full literal contents. This gives you an option if the JVM numeric types Byte/Short/Int/Long/Float/Double do not have the precision you need

          upickle.default.read[Map[String, String]]("""{"a":11111111111111111111111111111111}""") ==
          Map("a" -> "11111111111111111111111111111111")