因为客户要预览txt,但是window.open打开路径是乱码,
然后又尝试js根据url创建File对象,找了半天没有找到,
搜索结果都是需要获取input 的file,但是input file为了安全不允许赋值,这特么难道让我选服务器里的文件????
很明显我做不到,最后只能使用最笨的方法了
那就用java自带的吧,由于牵扯换行的问题我就使用了readLine,没有换行的小伙伴可以使用BufferedInputStream方式根据自定义大小读取
BufferedInputStream bufferedInput = new BufferedInputStream(connection.getInputStream()); int bytesRead = 0; byte[] buffer = new byte[1024]; while ((bytesRead = bufferedInput.read(buffer)) != -1) { String chunk = new String(buffer, 0, bytesRead); }
StringBuffer strB = new StringBuffer(); //strB用来存储txt文件里的内容
String str = "";
String mediaUrl = request.getAttribute("mediaUrl").toString();//文件路径我是从后台传的 就是 http://127.0.0.1......
URL url = null;
try {
url = new URL(mediaUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
InputStreamReader isr = new InputStreamReader(connection.getInputStream());
String txtSource = "";
BufferedReader br = new BufferedReader(isr);
while ((str = br.readLine()) != null) {
strB.append(str).append("<br>"); //将读取的内容放入strB
}
br.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}