Micronaut HttpResponse 主体 CompositeByteBuf 类型抛出 io.netty.util.IllegalReferenceCountException: refCnt: 0

Question

我正在使用 Micronaut @Client 调用外部服务 returns 我回应 FullNettyClientHttpResponse 类型，它的正文形式为 CompositeByteBuf(freed, components=1); 我想将 CompositeByteBuf 转换为人类可读的 toString 消息，但它因 IllegalReferenceCountException 而失败。请提供我如何在此处获取短信的建议。

@Client(value = "url")
public interface MyClient {

    @Post(consumes = MediaType.APPLICATION_XML, produces = MediaType.APPLICATION_XML)
    HttpResponse call(String body);
}


class service{

void method(){
  HttpResponse httpResponse = client.call(request);// returns FullNettyClientHttpResponse with body "Optional[CompositeByteBuf(freed, components=1)]"
  Optional<CompositeByteBuf> reBody = httpResponse.getBody(CompositeByteBuf.class);
  if(reBody.isPresent()){
      CompositeByteBuf b=reBody.get();
      byte[] req = new byte[b.readableBytes()];
      b.readBytes(req);
      String body = new String(req, CharsetUtil.UTF_8).substring(0, req.length - 
      System.getProperty("line.separator").length());
      System.out.println("server receive order : " + body);
 }
}

我尝试使用 toString 获取消息，但因 IllegalReferenceCountException 而失败。

b.toString(Charset.defaultCharset()); // Method threw 'io.netty.util.IllegalReferenceCountException' exception.

toString returns CompositeByteBuf.

b.toString(); //CompositeByteBuf(freed, components=1);

Answer 1

如果你想让 micronaut 保留响应的主体，你必须在客户端指定主体类型。

例如：

HttpResponse<String> call(String body);

Micronaut HttpResponse 主体 CompositeByteBuf 类型抛出 io.netty.util.IllegalReferenceCountException: refCnt: 0

Micronaut HttpResponse body CompositeByteBuf type throws io.netty.util.IllegalReferenceCountException: refCnt: 0

java

httpresponse

netty

micronaut

micronaut-client