JSON parse error: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t)

JSON parse error: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens; nested exception is com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n, \t) is allowed between tokens
at [Source: (PushbackInputStream); line: 1, column: 2]
http调用的时候爆出这个错，其实就是参数过大，超过当前设置的最大参数长度，参数超过了，肯能部分被截掉了，导致json字符串不完整，也就解析出问题了。要么减小参数的长度，要么将参数的允许长度设置大一点。如下调整好min-request-size即可

# feign 配置
feign:
  compression:
    request:
      enabled: true
      min-request-size: 8192
    response:
      enabled: true