Question

我正在使用教程中的示例，但我想添加特殊标题，但如果我只是页面没有响应，我收到错误ERR_EMPTY_RESPONSE。这是代码：

public class EchoHeaderHandler implements HttpHandler {
    @Override
    public void handle(HttpExchange httpExchange) throws IOException {
        Headers headers = httpExchange.getRequestHeaders();
        headers.add("Additional header", "3000");
        System.out.println(headers.size());
        Set<Map.Entry<String, List<String>>> entries = headers.entrySet();
        String response = "";
        for(Map.Entry<String, List<String>> entry : entries)
            response += entry.toString() + "\n";
        httpExchange.sendResponseHeaders(200, response.length());
        OutputStream os = httpExchange.getResponseBody();
        os.write(response.getBytes());
        os.close();
    }
}

Answer 1

您必须区分请求和响应。您正在尝试添加到请求标头，这应该是不可能的...添加到响应标头 https://docs.oracle.com/javase/7/docs/api/javax/xml/ws/spi/http/HttpExchange.html#addResponseHeader(java.lang.String,%20java.lang.String)

HttpServer处理程序，Java中额外的Header cousing空响应

1 个答案: