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Javascript 在react中映射图像,但不渲染_Javascript_Reactjs - Fatal编程技术网

Javascript 在react中映射图像,但不渲染

Javascript 在react中映射图像,但不渲染,javascript,reactjs,Javascript,Reactjs,我有麻烦,我想为电影票创建实时座位,但当我为座位条件映射图像时,图像无法渲染。当我通过刷新页面打开页面时,图像会被渲染,但当我移动到带有this.props.history.push的have seat map页面时,图像会被渲染。 这是我的密码 这是座椅组件: function Index({id, key}) { const state = useSelector(state => state.movie) const [selected, setSelected] =

我有麻烦,我想为电影票创建实时座位,但当我为座位条件映射图像时,图像无法渲染。当我通过刷新页面打开页面时,图像会被渲染,但当我移动到带有this.props.history.push的have seat map页面时,图像会被渲染。 这是我的密码

这是座椅组件:

function Index({id, key}) {
    const state = useSelector(state => state.movie)
    const [selected, setSelected] = useState(false)
    const [sold, setSold] = useState([])

    
    const handleSelect=(id)=>{
        if(selected){
            setSelected(false)
        }else{
            setSelected(true)
        }
        console.log(id);
    }
    console.log(state.movie);
    return (
        <div className="ord-icon-book">
            <div className="ord-icon-book-item"   name='seat'id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20540.png'} alt="A4" name='A4' placeholder='seat'/>
            </div>
            <div className="ord-icon-book-item"  name='seat'id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20443.png'} alt="A3" name='A3' />
            </div>

            {selected ?
            <div className="ord-icon-book-item"  id='selected' onClick={()=>handleSelect(id)} id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20469.png'} alt="A1" name='A1' />
            </div> :
            <div className="ord-icon-book-item" id='available' onClick={()=>handleSelect(id)} id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20438.png'} alt="A2" name='A2' />
            </div>
            }
        </div>
    )
}

export default Index
import Seats from './seats'


 componentDidMount(){
        let i;
     for(i=0; i< 14; i ++){
           this.state.seats.push(i)
        }
        let seat = document.getElementByClass
        console.log(this.state.seats);
    }

<div className="ord-spoting">
<div className="ord-spot-left">
    {this.state.seats.map((id, index)=>{
     return  <Seats id={id} key={index}/>
     })}
</div>
<div className="ord-spot-left">
    {this.state.seats.map((i,k)=>{
     <Seats /> 
    })}
</div>

函数索引({id,key}){
const state=useSelector(state=>state.movie)
const[selected,setSelected]=useState(false)
const[sell,setSold]=useState([])
const handleSelect=(id)=>{
如果(选定){
已选(假)
}否则{
已选择(正确)
}
console.log(id);
}
console.log(state.movie);
返回(
{被选中?
handleSelect(id)}id={id}key={key}>
:
handleSelect(id)}id={id}key={key}>
}
)
}
导出默认索引
这是我映射组件的地方:

function Index({id, key}) {
    const state = useSelector(state => state.movie)
    const [selected, setSelected] = useState(false)
    const [sold, setSold] = useState([])

    
    const handleSelect=(id)=>{
        if(selected){
            setSelected(false)
        }else{
            setSelected(true)
        }
        console.log(id);
    }
    console.log(state.movie);
    return (
        <div className="ord-icon-book">
            <div className="ord-icon-book-item"   name='seat'id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20540.png'} alt="A4" name='A4' placeholder='seat'/>
            </div>
            <div className="ord-icon-book-item"  name='seat'id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20443.png'} alt="A3" name='A3' />
            </div>

            {selected ?
            <div className="ord-icon-book-item"  id='selected' onClick={()=>handleSelect(id)} id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20469.png'} alt="A1" name='A1' />
            </div> :
            <div className="ord-icon-book-item" id='available' onClick={()=>handleSelect(id)} id={id} key={key}>
                <img src={'http://localhost:6400/image/Rectangle%20438.png'} alt="A2" name='A2' />
            </div>
            }
        </div>
    )
}

export default Index
import Seats from './seats'


 componentDidMount(){
        let i;
     for(i=0; i< 14; i ++){
           this.state.seats.push(i)
        }
        let seat = document.getElementByClass
        console.log(this.state.seats);
    }

<div className="ord-spoting">
<div className="ord-spot-left">
    {this.state.seats.map((id, index)=>{
     return  <Seats id={id} key={index}/>
     })}
</div>
<div className="ord-spot-left">
    {this.state.seats.map((i,k)=>{
     <Seats /> 
    })}
</div>

从“/Seats”导入座位
componentDidMount(){
让我;
对于(i=0;i<14;i++){
本.州.席位.推(一)
}
让seat=document.getElementByClass
console.log(this.state.seats);
}
{this.state.seats.map((id,index)=>{
返回
})}
{this.state.seats.map((i,k)=>{
})}

您不能在react或纯html中设置这样的图像。如果是纯HTML,您希望使用相对路径

像这样:

import myRectancle from "./image/Rectangle540.png";

由于您使用的是React,因此无法直接设置源。您必须首先导入图像资源

像这样:

import myRectancle from "./image/Rectangle540.png";
然后,在JSX中,像这样使用它:

<img src={myRectangle} alt="A1" name='A1' />


根据您的项目文件夹结构,确保图像路径正确。

感谢您回答@Jay Pillai,但它仍然不起作用,:/,图像仍然无法渲染。@ADWisnuPrasetio您能将代码发布到代码沙盒中吗?使用codesandbox.io。另外,在您的第一个代码段中,看起来您正在呈现一个索引组件,而不是Seats组件。您能在这里检查一下吗?请在这里查看一下。对于这个问题,我删除了很多不相关的代码,但它是有效的。确保正确设置样式,以便可以看到渲染图像和div。此外,请导入和导出正确的零部件。你从Seats.js导出'Index',从这个文件导入Seats,这个文件不存在existoke,如果我想将图像乘以30,该怎么办?因为在我的代码中,我创建了一些图像到座位位置,并将其乘以98项,就像在我的代码中一样。我可以将图像推到数组中,并将其映射到页面吗?