<html> <body> <script script type="text/javascript"> function show() { var reader = new FileReader(); reader.onload = function() { alert(this.result) } var f = document.getElementById("filePicker").files[0]; reader.re
Java代码: File filePic = new File(path+"1-ab1.png"); if(filePic.exists()){ FileInputStream is = new FileInputStream(filePic); int i = is.available(); // 得到文件大小 byte data[] = new byte[i]; is.read(data); // 读数据 is.close(); response.setContentType(&q