後臺Java處理
response.setContentType("multipart/form-data");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
// 2.設置文件頭：最後一個參數是設置下載文件名
response.setHeader("Content-Disposition", "attachment;fileName=" + html名);
ServletOutputStream out;
// 通過文件路徑獲得File對象
File htmlFile = new File(html的地址路徑+html名);
FileInputStream inputStream = new FileInputStream(htmlFile);
// 3.通過response獲取ServletOutputStream對象(out)
out = response.getOutputStream();
int b = 0;
byte[] buffer = new byte[1024];
while ((b = inputStream.read(buffer)) != -1) {
// 4.寫到輸出流(out)中
out.write(buffer, 0, b);
}
inputStream.close();
out.flush();
out.close();
前端處理
jsp
<%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<meta http-equiv="content-language" content="zh-CN" />
<title>文件預覽</title>
<script type="text/javascript" src="js路徑"></script>
</head>
<body>
<div id="previewFileId"></div>
</body>
</html>
js
$("#previewFileId").load("後臺請求地址", {參數});
前臺處理使用load,不會彈出提示是否下載