Java 发送邮件请求，邮件正文在netty中

我想通过netty对一些API进行POST请求。请求必须在正文中包含作为表单数据的参数。我是如何做到这一点的：

   FullHttpRequest httpRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, POST, url);
   httpRequest.setUri("https://url.com/myurl");
   ByteBuf byteBuf = Unpooled.copiedBuffer(myParameters, Charset.defaultCharset());
   httpRequest.headers().set(ACCEPT_ENCODING, GZIP);
   httpRequest.headers().set(CONTENT_TYPE, "application/json");
   httpRequest.headers().set(CONTENT_LENGTH, byteBuf.readableBytes());
   httpRequest.content().clear().writeBytes(byteBuf);
   Bootstrap b = new Bootstrap();
   b.group(group)
            .channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, CNXN_TIMEOUT_MS)
            .handler(new ChannelInitializerCustomImpl());

   ChannelFuture cf = b.connect(url.getHost(), port);
   cf.addListener(new ChannelFutureListenerCustomImpl();

这是工作正常，但结果是不同的，我收到的邮递员或其他文书。

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将我的参数设置为请求正文的表单数据的正确方法是什么？

我认为您的请求标题设置不正确，请将内容类型设置为application/x-www-form-urlencoded并尝试一下。

我通过使用Apache httpcomponents库创建HttpEntity解决了这个问题，将其序列化为字节数组并设置为netty ByteBuf，同时使用jackson将json从字符串解析为映射：

    Map<String, String> jsonMapParams = objectMapper.readValue(jsonStringParams, new TypeReference<Map<String, String>>() {});

    List<NameValuePair> formParams = jsonMapParams.entrySet().stream()
            .map(e -> new BasicNameValuePair(e.getKey(), e.getValue()))
            .collect(Collectors.toList());
    HttpEntity httpEntity = new UrlEncodedFormEntity(formParams);
    ByteBuf byteBuf = Unpooled.copiedBuffer(EntityUtils.toByteArray(httpEntity));

    httpRequest.headers().set(ACCEPT_ENCODING, GZIP);
    httpRequest.headers().set(CONTENT_TYPE, "application/x-www-form-urlencoded");
    httpRequest.headers().set(CONTENT_LENGTH, byteBuf.readableBytes());
    httpRequest.content().clear().writeBytes(byteBuf);