Java HTTPServer从服务器向客户端发送get请求

我想从http服务器向客户端发送参数（GET请求）

    private void displayPage(HttpExchange he) throws IOException {
    String root = "html";
    URI uri = he.getRequestURI();
    File file = new File(root + uri.getPath()).getCanonicalFile();
    OutputStream os = null;
    String response = "";

    if (!file.isFile()) {
        // Object does not exist or is not a file: reject with 404 error.
        response = "404 (Not Found)\n";
        he.sendResponseHeaders(404, response.length());
        os = he.getResponseBody();
        os.write(response.getBytes());

    } else {
        // Object exists and is a file: accept with response code 200.
        he.sendResponseHeaders(200, 0);
        os = he.getResponseBody();
        FileInputStream fs = new FileInputStream(file);
        final byte[] buffer = new byte[0x10000];
        int count = 0;
        while ((count = fs.read(buffer)) >= 0) 
            os.write(buffer,0,count);  
        fs.close();
    }
    os.close();
}

此方法将request.html页面发送到客户端

    private void displayPage(HttpExchange he) throws IOException {
    String root = "html";
    URI uri = he.getRequestURI();
    File file = new File(root + uri.getPath()).getCanonicalFile();
    OutputStream os = null;
    String response = "";

    if (!file.isFile()) {
        // Object does not exist or is not a file: reject with 404 error.
        response = "404 (Not Found)\n";
        he.sendResponseHeaders(404, response.length());
        os = he.getResponseBody();
        os.write(response.getBytes());

    } else {
        // Object exists and is a file: accept with response code 200.
        he.sendResponseHeaders(200, 0);
        os = he.getResponseBody();
        FileInputStream fs = new FileInputStream(file);
        final byte[] buffer = new byte[0x10000];
        int count = 0;
        while ((count = fs.read(buffer)) >= 0) 
            os.write(buffer,0,count);  
        fs.close();
    }
    os.close();
}

我想在http头中插入以下参数：

String urlParameters = "sensornumber="+N_SENSORI+"&lightnumber="+N_LUCI+"&defaultlightname="+LUCE+"&defaultsensornumber="+SENSORE;

---

因此，我可以在.html文件中的javascript中使用它们

为什么不根据需要生成html，而不是发送带有标题的静态html等？我不会赞同这一切背后的逻辑思想，但要回答您的问题，您应该理解的是，您正在读取一个文件，然后将其导出。您应该开始了解如何在java中编辑文件。这种逻辑将在while循环中使用明显的if语句。这应该可以解决当前的问题。