这两天在工作中遇到一个问题，一个请求返回400错误，我需要向用户展示后端返回的错误信息，但是用普通的catch方法只能获取到浏览器返回的400错误提示，不能获取到后端返回的，后经查阅得出下面方法：
axios.get('/user/12345') .catch(function (error) { if (error.response) { // The request was made and the server responded with a status code // that falls out of the range of 2xx console.log(error.response.data); console.log(error.response.status); console.log(error.response.headers); } else if (error.request) { // The request was made but no response was received // `error.request` is an instance of XMLHttpRequest in the browser and an instance of // http.ClientRequest in node.js console.log(error.request); } else { // Something happened in setting up the request that triggered an Error console.log('Error', error.message); } console.log(error.config); });
参考文档： https://segmentfault.com/q/1010000011190809/a-1020000011210688
