[英]How to send byte array from javascript to java servlet through ajax
I have a byte array in front-end generated by javascript that I want to send to java servlet through ajax. 我有一个由javascript生成的前端字节数组,我想通过ajax发送到java servlet。 How can I do that?
我怎样才能做到这一点?
See this q&a which discusses a jquery solution but also offers a vanilla js solution 请参阅此问答,其中讨论了jquery解决方案,但也提供了普通的js解决方案
var bytesToSend = [253, 0, 128, 1],
bytesArray = new Uint8Array(bytesToSend);
var xhr = new XMLHttpRequest();
xhr.open('POST', '%your_service_url%');
xhr.setRequestHeader('Content-Type', 'application/octet-stream');
xhr.send(bytesArray);
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