Javascript 如何在 React 组件中导入图像 (.svg, .png )

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时间:2020-08-23 02:11:12  来源:igfitidea点击:

How to import image (.svg, .png ) in a React Component

javascriptreactjswebpack

提问by Shadid

I am trying to import an image file in one of my react component. I have the project setup with web pack

我正在尝试在我的反应组件之一中导入图像文件。我有使用 web pack 的项目设置

Here's my code for the component

这是我的组件代码

import Diamond from '../../assets/linux_logo.jpg';

 export class ItemCols extends Component {
    render(){
        return (
            <div>
                <section className="one-fourth" id="html">
                    <img src={Diamond} />
                </section>
            </div>
        )
    } 
}

Here's my project structure.

这是我的项目结构。

enter image description here

在此处输入图片说明

I have setup my webpack.config.js file in the following way

我已经按照以下方式设置了我的 webpack.config.js 文件

{
    test: /\.(jpg|png|svg)$/,
    loader: 'url-loader',
    options: {
      limit: 25000,
    },
},
{
    test: /\.(jpg|png|svg)$/,
    loader: 'file-loader',
    options: {
      name: '[path][name].[hash].[ext]',
    },
},

PS. I can get image from any other remote source but not locally saved images. The JavaScript Console also doesn't give me any error. Please anything helps. I am quite new to react and unable to find what am I doing wrong.

附注。我可以从任何其他远程来源获取图像,但不能从本地保存的图像中获取。JavaScript 控制台也没有给我任何错误。请任何帮助。我对反应很陌生,无法找到我做错了什么。

回答by

try using

尝试使用

import mainLogo from'./logoWhite.png';

//then in the render function of Jsx insert the mainLogo variable

class NavBar extends Component {
  render() {
    return (
      <nav className="nav" style={nbStyle}>
        <div className="container">
          //right below here
          <img  src={mainLogo} style={nbStyle.logo} alt="fireSpot"/>
        </div>
      </nav>
    );
  }
}

回答by Hemadri Dasari

You can use require as well to render images like

您也可以使用 require 来渲染图像,例如

//then in the render function of Jsx insert the mainLogo variable

class NavBar extends Component {
  render() {
    return (
      <nav className="nav" style={nbStyle}>
        <div className="container">
          //right below here
          <img src={require('./logoWhite.png')} style={nbStyle.logo} alt="fireSpot"/>
        </div>
      </nav>
    );
  }
}

回答by Rohith Murali

If the images are inside the src/assets folder you can use requirewith the correct path in the require statement,

如果图像在 src/assets 文件夹中,您可以require在 require 语句中使用正确的路径,

var Diamond = require('../../assets/linux_logo.jpg');

 export class ItemCols extends Component {
    render(){
        return (
            <div>
                <section className="one-fourth" id="html">
                    <img src={Diamond} />
                </section>
            </div>
        )
    } 
}

回答by Matiullah Mosazai

import React, {Component} from 'react';
import imagename from './imagename.png'; //image is in the current folder where the App.js exits


class App extends React. Component{
    constructor(props){
     super(props)
     this.state={
      imagesrc=imagename // as it is imported
     }
   }

   render(){
       return (

        <ImageClass 
        src={this.state.imagesrc}
        />
       );
   }
}

class ImageClass extends React.Component{
    render(){
        return (

            <img src={this.props.src} height='200px' width='100px' />
        );
    }
}

export default App;

回答by Andre

Solved the problem, when moved the folder with the image in src folder. Then I turned to the image (project created through "create-react-app")
let image = document.createElement("img"); image.src = require('../assets/police.png');

解决了在 src 文件夹中移动带有图像的文件夹时的问题。然后我转向图像(通过“create-react-app”创建的项目)
let image = document.createElement("img"); image.src = require('../assets/police.png');