解决办法:在axios的第三个参数config中,设置请求头信息'Content-Type': 'application/json;charset=UTF-8'
'Content-Type': 'application/json;charset=UTF-8'
this.$http.post('registry', JSON.stringify(this.ruleForm2),{ headers: { 'Content-Type': 'application/json;charset=UTF-8' } })