小编jua*_*rro的帖子

我正在使用此代码，但Chrome不会向我显示标题，似乎没有添加标题：

Headers headers = httpExchange.getResponseHeaders();
headers.add("Access-Control-Allow-Headers","x-prototype-version,x-requested-with");
headers.add("Access-Control-Allow-Methods","GET,POST");
headers.add("Access-Control-Allow-Origin","*");

httpExchange.sendResponseHeaders(responseCode, responseBody.length());
OutputStream os = httpExchange.getResponseBody();
os.write(responseBody.getBytes());
os.close();

我究竟做错了什么？