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[英]How to display different component after button click using React-Hooks?
[英]Using React-Hooks/Axios to fetch data and display in a table
我有这个React设置,我定义了一个名为ApiTable
的钩子,并有一个renderTable
方法。 我正在尝试从api端点https://jsonplaceholder.typicode.com/users
获取数据,并将其返回到具有适当类别的表中。
现在,它会将所有列都压缩到左侧,如此处所示。 当前,数据未显示,并被压缩到左侧。 我很确定我的表数据设置错误。
另外,我不确定axios请求是否应该在useEffect内。
https://imgur.com/a/Up4a56v
const ApiTable = () => { const url = 'https://jsonplaceholder.typicode.com/users'; const [data, setData] = useState([]); useEffect(() => { setData([data]); axios.get(url) .then(json => console.log(json)) }, []); const renderTable = () => { return data.map((user) => { const { name, email, address, company } = user; return ( <div> <thead> <tr> <th>Name</th> <th>Email</th> <th>Address</th> <th>Company</th> </tr> </thead> <tbody> <tr> <td>name</td> <td>email</td> <td>address</td> <td>company</td> </tr> </tbody> </div> ) }) } return ( <div> <h1 id='title'>API Table</h1> <Table id='users'> {renderTable()} </Table> </div> ) };
您正在正确获取数据,但是将数据设置为错误状态。
同样,当您迭代data
数组时,每次都会打印table head
,这是错误的,并且您的data
数组address
和company
都是对象,因此您无法直接打印对象。
你需要这样做
const App = () => {
const url = 'https://jsonplaceholder.typicode.com/users'
const [data, setData] = useState([])
useEffect(() => {
axios.get(url).then(json => setData(json.data))
}, [])
const renderTable = () => {
return data.map(user => {
return (
<tr>
<td>{user.name}</td>
<td>{user.email}</td>
<td>{user.address.street}</td> //only street name shown, if you need to show complete address then you need to iterate over `user.address` object
<td>{user.company.name}</td> //only company name shown, if you need to show complete company name then you need to iterate over `user.name` object
</tr>
)
})
}
return (
<div>
<h1 id="title">API Table</h1>
<table id="users"> //Your Table in post changed to table to make it work
<thead>
<tr>
<th>Name</th>
<th>Email</th>
<th>Address</th>
<th>Company</th>
</tr>
</thead>
<tbody>{renderTable()}</tbody>
</table>
</div>
)
}
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