我正在尝试使用 Murmur3 算法生成哈希。哈希是一致的,但它们是 Scala 和 Guava 返回的不同值。
class package$Test extends FunSuite {
test("Generate hashes") {
println(s"Seed = ${MurmurHash3.stringSeed}")
val vs = Set("abc", "test", "bucket", 111.toString)
vs.foreach { x =>
println(s"[SCALA] Hash for $x = ${MurmurHash3.stringHash(x).abs % 1000}")
println(s"[GUAVA] Hash for $x = ${Hashing.murmur3_32().hashString(x).asInt().abs % 1000}")
println(s"[GUAVA with seed] Hash for $x = ${Hashing.murmur3_32(MurmurHash3.stringSeed).hashString(x).asInt().abs % 1000}")
println()
}
}
}
Seed = -137723950
[SCALA] Hash for abc = 174
[GUAVA] Hash for abc = 419
[GUAVA with seed] Hash for abc = 195
[SCALA] Hash for test = 588
[GUAVA] Hash for test = 292
[GUAVA with seed] Hash for test = 714
[SCALA] Hash for bucket = 413
[GUAVA] Hash for bucket = 22
[GUAVA with seed] Hash for bucket = 414
[SCALA] Hash for 111 = 250
[GUAVA] Hash for 111 = 317
[GUAVA with seed] Hash for 111 = 958
为什么我得到不同的哈希值?