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[问与答] wails 后端将文件转化成[]byte,发送到前端,前端如何显示呢?

发表于

chatgpt 回答的是 blob ,还是无法显示。通过 a 标签下载下来的文件大小也不一致。 后端代码

func (a *App) Greet(name string) ([]byte, error) {
	
	pdfData, err := ioutil.ReadFile(".//aaa.pdf")
	if err != nil {
		return nil, err
	}
	return pdfData, nil

}

前端代码

const fetchBlob = async () => {
      try {
        
        const pdfData = await Greet('aaa');
        const blob = new Blob([pdfData], { type: 'application/pdf' });
        
        console.log(blob)
        const url = URL.createObjectURL(blob);
        setBlobUrl(url);
      } catch (error) {
        console.error('Error fetching blob:', error);
      }
    };

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