Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
402 views
in Technique[技术] by (71.8m points)

reactjs - Uploading file (Images/PDF) and also preview uploaded images/PDFusing React

I am using specified link Uploading File using React for uploading files but it is accepting only images, I have to upload PDF's as well, Also want to preview uploaded files.

Please help me in uploading Images, PDF format and preview the uploaded files. Please let me know if there are any libraries based on my requirement.

I am new to React.Please help me on this Thanks in Advance.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

If you pass on accept="image/png, image/jpeg" it limits to images also some more options available here

const App = () => {
  
  const handleImageChange = (e) => {
    let reader = new FileReader();
    const files = e.target.files;

    if (files.length) {
      const file = files[0];
      console.log(file)
    }
  };
  return(
      <input
      type="file"
      onChange={handleImageChange}
      // accept="image/png, image/jpeg"
    />
   )
}

ReactDOM.render(<App />, document.getElementById("react"));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.4/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.4/umd/react-dom.production.min.js"></script>
<div id="react"></div>

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...