main.js里加上
axios.defaults.headers['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8';
axios.interceptors.request.use((config) => {
if(config.method === 'post') {
config.data = qs.stringify(config.data);
}
return config;
}, (error) => {
return Promise.reject(error);
});