Javascript 从axios response reactjs填充输入字段
我有简单的字段。我想根据从axios response获得的数据填充输入框。见下图 我使用钩子,将数据保存到状态。 我的问题是如何在单击GetDetails按钮(api的响应)时填充输入框 参见下面的代码Javascript 从axios response reactjs填充输入字段,javascript,reactjs,Javascript,Reactjs,我有简单的字段。我想根据从axios response获得的数据填充输入框。见下图 我使用钩子,将数据保存到状态。 我的问题是如何在单击GetDetails按钮(api的响应)时填充输入框 参见下面的代码 const [data, setData] = useState([]) const [advisoryDetails, setadvisoryDetails] = useState({ ADVISORYID: '', ADVISORYDESC: '', CREATE
const [data, setData] = useState([])
const [advisoryDetails, setadvisoryDetails] = useState({
ADVISORYID: '',
ADVISORYDESC: '',
CREATEDBY:'',
MODIFIEDBY:'',
STATUS1: ''
})
const [advisoryDetails1, setadvisoryDetails1] = useState([])
const [advisoryID, setadvisoryID] = useState('')
const getAdvisoryTest = async () => {
await axios.post('/API',advisoryID)
.then(response => {
console.log(response.data)
setData(response.data)
console.log('data',data)
setadvisoryDetails1(response.data)
console.log('advisoryDetails1',advisoryDetails1)
alert('success')
})
advisoryDetails1.map(adv => {
advisoryDetails.ADVISORYID = adv.ADVISORYID;
advisoryDetails.ADVISORYDESC = adv.ADVISORYDESC;
advisoryDetails.CREATEDBY = adv.CREATEDBY;
advisoryDetails.MODIFIEDBY = adv.MODIFIEDBY;
if(adv.CREATEDBY && adv.MODIFIEDBY != '')
{
advisoryDetails.STATUS1 = 'Modified'
}
else{ advisoryDetails.STATUS1 = 'New'}
console.log('populate',advisoryDetails)
})
}
const txtAdvIdOnChange = e =>{
setadvisoryID(prevState =>({
...prevState,
'ADVISORYID':e.target.value
}));
console.log('onChange ID:',advisoryID)
}
return(
<div>
<label>AdvisoryID: </label>
<input type='text' placeholder='Advisory ID' className='txtAdvisoryID' onChange={txtAdvIdOnChange} />
<button onClick={()=>getAdvisoryTest()}>Get Details</button>
<br /><br />
<label>Advisory Desc: </label>
<input type='text' placeholder='textbox1' className='txtAdvisoryDesc' value={advisoryDetails&&advisoryDetails.ADVISORYDESC} disabled/>
<br/>
<label>New / Modified: </label>
<input type='text' placeholder='textbox2' className='txtStatus' value={advisoryDetails&&advisoryDetails.STATUS1} disabled/>
</div>)
const[data,setData]=useState([]
const[advisoryDetails,setadvisoryDetails]=useState({
ADVISORYID:“”,
ADVISORYDESC:“”,
由“”创建,
修改为:“”,
状态1:“”
})
const[advisoryDetails1,setadvisoryDetails1]=useState([]
const[advisoryID,setadvisoryID]=useState(“”)
const getAdvisoryTest=async()=>{
等待axios.post('/API',advisoryID)
。然后(响应=>{
console.log(response.data)
setData(response.data)
console.log('data',data)
setadvisoryDetails1(response.data)
console.log('advisoryDetails1',advisoryDetails1)
警报(“成功”)
})
advisoryDetails1.map(adv=>{
advisoryDetails.ADVISORYID=adv.ADVISORYID;
ADVISORYDESC=adv.ADVISORYDESC;
advisoryDetails.CREATEDBY=adv.CREATEDBY;
advisoryDetails.MODIFIEDBY=adv.MODIFIEDBY;
如果(adv.CREATEDBY&&adv.MODIFIEDBY!='')
{
advisoryDetails.STATUS1='Modified'
}
else{advisoryDetails.STATUS1='New'}
console.log('populate',advisoryDetails)
})
}
const txtAdvIdOnChange=e=>{
setadvisoryID(prevState=>({
…国家,
“ADVISORYID”:e.target.value
}));
console.log('onChange ID:',advisoryID)
}
返回(
忠告:
getAdvisoryTest()}>获取详细信息
咨询说明:
新的/修改的:
)
在这些代码上,即使在console.log中,也没有填充输入框
希望您能帮助我,谢谢。请尝试在输入值属性的
&&
两侧添加空格
<input type='text' placeholder='textbox2' className='txtStatus' value={advisoryDetails.STATUS1 && advisoryDetails.STATUS1} disabled/>
当您单击“获取详细信息”按钮时,您的状态未更新,这是问题所在(值仅在状态更新时更改,否则不会更新) 如果要查看advisoryDetails1数组中的最后一个元素,请执行以下操作
let adv=advisoryDetails1[advisoryDetails1.length -1];
let STATUS1 ='New'
if(adv.CREATEDBY && adv.MODIFIEDBY != '')
{
STATUS1 = 'Modified'
}
setadvisoryDetails({ADVISORYID : adv.ADVISORYID,
ADVISORYDESC:adv.ADVISORYDESC,
CREATEDBY:adv.CREATEDBY,
MODIFIEDBY:adv.MODIFIEDBY,
STATUS1:STATUS1
})
//it update your advisoryDetails state when advisoryDetails1 changed
useEffect(()=>{
advisoryDetails1.forEach(adv => {
let STATUS1 ='New'
if(adv.CREATEDBY && adv.MODIFIEDBY != '')
{
STATUS1 = 'Modified'
}
setadvisoryDetails({ADVISORYID : adv.ADVISORYID,
ADVISORYDESC:adv.ADVISORYDESC,
CREATEDBY:adv.CREATEDBY,
MODIFIEDBY:adv.MODIFIEDBY,
STATUS1:STATUS1
})
})
},[advisoryDetails1]);
//check whether advisoryDetails is changed or not
useEffect(()=>{
console.log('populate',advisoryDetails)
},[advisoryDetails])
一切正常,但不是这样做的,只是数组的最后一个元素已更新,因此您必须根据您的要求进行一些更改我认为您可以像下面这样重构代码。 我将set
setadvisoryDetails
移动到axios的中。然后()
,因为您使用的是相同的数据,如果您只需要最后一次迭代的值,就不必经过循环。在输入中,您不必检查advisoryDetails
是否存在或是否具有非空值,因为您已在const[advisorydails,setadvisorydails]=useState({…})
const-App=(道具)=>{
const[data,setData]=useState([])
const[advisoryDetails,setadvisoryDetails]=useState({
ADVISORYID:“”,
ADVISORYDESC:“”,
由“”创建,
修改为:“”,
状态1:“”
})
const[advisoryDetails1,setadvisoryDetails1]=useState([]
const[advisoryID,setadvisoryID]=useState(“”)
const getAdvisoryTest=()=>{
axios.post('/API',advisoryID)
。然后(响应=>{
const respData=response.data;
setData(respData)
setadvisoryDetails1(respData)
console.log({
响应数据、数据、咨询详情1
});
警惕(“成功”);
如果(respData.length>0){
const adv=respData[respData.length-1];
setadvisoryDetails((prevState)=>({
…国家,
副词。
状态1:adv.CREATEDBY&&adv.MODIFIEDBY!='''Modified':'New'
}))
}
})
}
const txtAdvIdOnChange=e=>{
setadvisoryID(prevState=>({
…国家,
“ADVISORYID”:e.target.value
}));
console.log('onChange ID:',advisoryID)
}
返回(
忠告:
{/*如果只是传递一个没有任何参数或事件参数的函数,那么只需像传递变量一样传递函数名*/}
获取详细信息
咨询说明:
新的/修改的:
);
}
为什么有advisoryDetails.STATUS1='Modified'
?使用setadvisoryDetails
更新状态,如下所示:setadvisoryDetails(prevState=>({…prevState,STATUS1:“Modified”}))
并且您知道,由于您正在处理数组advisoryDetails1
,它只是将数据覆盖到advisoryDetails
,您将看到最后一次迭代的values@HaseebA哦,是的,呵呵,我的错。但是,如果您正在将response.data
设置为advisorydails1
为什么不使用response的数据来更新它,因为它可能的advisorydails1
在此时没有更新const respData=response.data;如果(respData.length>0){const adv=respData[respData.length-1];setadvisoryDetails((prevState)=>({…prevState,…adv,STATUS1:adv.CREATEDBY&&adv.MODIFIEDBY!=''Modified':'New'})}```你好@HaseebA,你能发布你的答案吗,这样我就可以把它标记为正确的答案?感谢您在使用您的第二套代码时@baskaran ajiharan@hi//after comment下的代码。advisoryDetails在第一次单击时还并没有填充数据(我通过console.log进行了检查)。我想在单击按钮后立即填充advisoryDetails,以便我立即使用它并填充输入框。谢谢,我确保axios响应只返回一组数据。我只是更新了我的答案,您可以重新检查吗?您不能直接使用console.log语句进行检查,因为它是异步的。只能使用render方法进行检查
let adv=advisoryDetails1[advisoryDetails1.length -1];
let STATUS1 ='New'
if(adv.CREATEDBY && adv.MODIFIEDBY != '')
{
STATUS1 = 'Modified'
}
setadvisoryDetails({ADVISORYID : adv.ADVISORYID,
ADVISORYDESC:adv.ADVISORYDESC,
CREATEDBY:adv.CREATEDBY,
MODIFIEDBY:adv.MODIFIEDBY,
STATUS1:STATUS1
})
//it update your advisoryDetails state when advisoryDetails1 changed
useEffect(()=>{
advisoryDetails1.forEach(adv => {
let STATUS1 ='New'
if(adv.CREATEDBY && adv.MODIFIEDBY != '')
{
STATUS1 = 'Modified'
}
setadvisoryDetails({ADVISORYID : adv.ADVISORYID,
ADVISORYDESC:adv.ADVISORYDESC,
CREATEDBY:adv.CREATEDBY,
MODIFIEDBY:adv.MODIFIEDBY,
STATUS1:STATUS1
})
})
},[advisoryDetails1]);
//check whether advisoryDetails is changed or not
useEffect(()=>{
console.log('populate',advisoryDetails)
},[advisoryDetails])
const App = (props) => {
const [data, setData] = useState([])
const [advisoryDetails, setadvisoryDetails] = useState({
ADVISORYID: '',
ADVISORYDESC: '',
CREATEDBY: '',
MODIFIEDBY: '',
STATUS1: ''
})
const [advisoryDetails1, setadvisoryDetails1] = useState([])
const [advisoryID, setadvisoryID] = useState('')
const getAdvisoryTest = () => {
axios.post('/API', advisoryID)
.then(response => {
const respData = response.data;
setData(respData)
setadvisoryDetails1(respData)
console.log({
respData, data, advisoryDetails1
});
alert('success');
if (respData.length > 0) {
const adv = respData[respData.length - 1];
setadvisoryDetails((prevState) => ({
...prevState,
...adv,
STATUS1: adv.CREATEDBY && adv.MODIFIEDBY != '' ? 'Modified' : 'New'
}))
}
})
}
const txtAdvIdOnChange = e => {
setadvisoryID(prevState => ({
...prevState,
'ADVISORYID': e.target.value
}));
console.log('onChange ID:', advisoryID)
}
return (
<div>
<label>AdvisoryID: </label>
<input type='text' placeholder='Advisory ID' className='txtAdvisoryID' onChange={txtAdvIdOnChange} />
{/* If you're just passing a function without any param or event params, then just pass the function name like a variable */}
<button onClick={getAdvisoryTest}>Get Details</button>
<br /><br />
<label>Advisory Desc: </label>
<input type='text' placeholder='textbox1' className='txtAdvisoryDesc' value={advisoryDetails.ADVISORYDESC} disabled />
<br />
<label>New / Modified: </label>
<input type='text' placeholder='textbox2' className='txtStatus' value={advisoryDetails.STATUS1} disabled />
</div>
);
}