react怎麼mock數據

react mock資料的方法：先在public目錄下建立【/api/headerList.json】檔案；然後加入相關程式碼【axios.get('/api/headerList.json')】。

本教學操作環境：windows7系統、React17版、thinkpad t480電腦。

react mock資料的方法：

如下程式碼，在input取得焦點時呼叫getList()方法。

const mapDispathToProps = (dispatch) => {
    return {
        handleInputFocus() {
            dispatch(actionCreators.getList())
        }
    }
}

getList()方法是透過Ajax取得數據，此時後端並沒有寫好，所以自己mock一個數據。

export const getList = () => {
    return (dispatch) => {
        axios.get('/api/headerList.json').then((res) => {
            const data = res.data;
            console.log(data)
        }).catch(() => {
            console.log('error')
        })
    }
}

axios.get('/api/headerList.json')這句程式碼，電腦會先去src目錄下找/api/headerList.json，找不到然後去public目錄下找，此時我們在public目錄下建立/api/headerList.json文件，文件如下：

{
    "success":true,
    "data":["微信","支付宝","蚂蚁金服","被骗","借呗","诈骗","盗窃","pandas","TensorFlow","PyTorch","Caffe","scikit-learn","Python","Keras","pyecharts","ggplot","Matplotlib","Gensim","Bokeh","Theano","Scrapy","SciPy","Plotly","NumPy","XGBoost","是","他","有","光大永明","我","要","人","Android","女","大","不","着","男","它","二","于","中","java","把","上","这","下","的","了","来"]
}

此時傳回的資料就是以上數據，透過console.log(res.data )列印資料如下圖：

這樣mock資料就成功了。

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