聊聊ant design charts 获取后端接口数据展示问题

import React, { useState, useEffect } from 'react';
import { Line } from '@ant-design/plots';
import { PageContainer } from '@ant-design/pro-layout';
import ProForm, { ProFormDateRangePicker } from '@ant-design/pro-form';
import queryString from 'qs';
const DemoLine = () => {
const [data, setData] = useState([]);
useEffect(() => {
asyncFetch();
}, []);
var obj=[]
var pre=[]
const asyncFetch = () => {
fetch('/api/v1.0/inquireRepairsAnalysisNumberListTenant.json',{
method: 'POST',
body:new URLSearchParams(queryString.stringify({
sessionUuid: window.localStorage.getItem('sid') ,
startDate: '2021-12-01',
endDate: '2022-05-30',
}, { indices: false }))
})
.then(response=>response.json())//将respose转成json格式数据以便可以访问读取
.then(response=>{
obj=response.datas[0];//获取json数据中的data部分，并对其开始进行处理
console.log(obj)
for(var i = 0; i < obj.typeNameList.length;i++){
for(var j=0;j<obj.monthList.length-1;j++){
pre.push({ monthList:obj.monthList[j],
monthNumberList:obj.monthNumberList[j].numberList[i],
typeNameList:obj.typeNameList[i],
})
}
}
setData(pre)
}
)
.catch((error) => {
console.log('fetch data failed', error);
});
};
console.log(data,data.length)
const config = {
data,
xField: 'monthList',
yField: 'monthNumberList',
seriesField: 'typeNameList',
yAxis: {
},
legend: {
position: 'top',
},
smooth: true,
// @TODO 后续会换一种动画方式
animation: {
appear: {
animation: 'path-in',
duration: 5000,
},
},
};
return (
<PageContainer>
<ProForm
initialValues={{
dateRange: [Date.now(), Date.now() - 1000 * 60 * 60 * 24],
}}
>
<ProForm.Group title="日期区间选择">
<ProFormDateRangePicker name="dateRange" />
</ProForm.Group>
</ProForm>
<Line {...config} />
</PageContainer>
)
};
export default DemoLine;

.then(response=>{
obj=response.datas[0];//获取json数据中的data部分，并对其开始进行处理
console.log(obj,'obj')

for(var i = 0; i < obj.typeNameList.length;i++){
for(var j=0;j<obj.monthList.length-1;j++){
pre.push({ monthList:obj.monthList[j],
monthNumberList:obj.monthNumberList[j].numberList[i],
typeNameList:obj.typeNameList[i],
})
}
}

setData(pre)

const config = {
data,//简写data:data
xField: 'monthList',
yField: 'monthNumberList',
seriesField: 'typeNameList',
yAxis: {

},
legend: {
position: 'top',
},
smooth: true,
// @TODO 后续会换一种动画方式
animation: {
appear: {
animation: 'path-in',
duration: 5000,
},
},
};