几天公司要求做一个附件预览的需求，txt在线预览，已流的形式输出到页面，一直显示中文乱码，后来尝试res.setContentType(“text/plain;charset=utf-8”);还是不行，将charset="utf-8"改成charset="iso8859-1"依然不行，最后直接将其设置成gb2312
，奇迹出现了，不乱吗了，多尝试一下，肯定可以的，下面上一段代码：
这里是引用
public void openOtherTxt(HttpServletRequest request,HttpServletResponse res)throws Exception{
String path = request.getParameter(“path”);
path = URLDecoder.decode(path,“UTF-8”);
byte[] bdata = fileToBytes(path);
res.reset();
//res.setCharacterEncoding(“UTF-8”);
res.setContentType(“text/plain;charset=gb2312”);
if(bdata!=null){
OutputStream op;
try {
op = res.getOutputStream();
op.write(bdata);
op.close();
if (op.equals(null)) {
res.flushBuffer();
}
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
private byte[] fileToBytes(String path){
byte[] buffer = null;
File file = new File(path);
FileInputStream fis = null;ByteArrayOutputStream bos = null;try {fis = new FileInputStream(file);bos = new ByteArrayOutputStream();byte[] b = new byte[1024];int n;while ((n = fis.read(b)) != -1) {bos.write(b, 0, n);}buffer = bos.toByteArray();} catch (FileNotFoundException ex) {ex.printStackTrace();} catch (IOException e) {e.printStackTrace();}return buffer;
}