日本avascript:handle Unexpected express js中的JSON错误

try{
  let body = JSON.parse(req.body);
}catch(e){
   res.json({
    error:e
  })
}

但是 Unexpected JSON 未在中引发错误 catch block .

application/json

这是JSON请求

{
    "userId":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbWFpbCI6InNoYW1vbjVAYWNjdWJpdHMuY29tIiwiaWQiOjExNCwiaWF0IjoxNTMxOTgyNDQ0LCJleHAiOjE1MzI1ODcyNDR9.dv1zEnLsmKXbSE4wKbSOdYX3p7v5N5nh9kbz6PA_4TE",
    "readValue":falseuyuyuyu
}

readValue 格式不正确