vue中fetch请求

1. 请求方式：get

请求参数：menuName

返回的结果：data

created(){

         this._initPageData()

    },

    methods:{

            _initPageData(){

             fetch('http://localhost:3000/category/searchcategory?menuName='+this.menuName, {

              method: 'get'

            }).then(response => response.json()).then(data => {

               this.category = data.data;

               // console.log(this.category)

            })

          }

2. 请求方式：post

请求参数：username,password

返回的结果：data

fetch('http://localhost:3000/users/register', {

         method: 'POST',

         headers: { 'Accept': 'application/json', 'Content-Type': 'application/json'},

         body: JSON.stringify({ username:userPhone, password: userPassword})

         }).then(response => response.json()).then(data => {  

               console.log(data)

               if(data.state){

                alert(dat