Java HttpCode时驼峰休息响应体为空=200

有一个rest路由，其中包含多个可能的rest响应（它们属于不同的类型，但假设它只是MyResponse.class）

处理器执行一些验证/业务逻辑。大致上看起来：

@Override
public void process(Exchange exchange) throws Exception {
    SampleRequest inReq = exchange.getIn().getBody(SampleRequest.class);
    if (inReq.getMsgMode().equals("500"))
        exchange.getOut().setHeader(Exchange.HTTP_RESPONSE_CODE, HttpStatus.SC_INTERNAL_SERVER_ERROR);
    if (inReq.getMsgMode().equals("400"))
        exchange.getOut().setHeader(Exchange.HTTP_RESPONSE_CODE, HttpStatus.SC_BAD_REQUEST);
    MyResponse myClass = new MyResponse();
    myClass.setRecId("123456");
    exchange.getOut().setBody(myClass);
}

阳性病例的执行结果：

代码详细信息 200 响应体 { “recId”：“123456” }

500或400箱 代码详细信息 400错误：请求错误 响应头 连接：保持活力

（无正文）

如果我将路线更改为手动编组：

rest().post("/{{camel.rest.version}}/myjson")
        .consumes("application/json").produces("application/json")
        .type(SampleRequest.class)                
        .route().routeId("rest_myroute")
        .log(LoggingLevel.INFO, LoggingConst.API_REQ+" Recieved http request ${body}")
        .process(sampleProcessor).id("sample_transform")
        .marshal().json(JsonLibrary.Jackson)
        .log(LoggingLevel.INFO, LoggingConst.API_RESP+" Response ${body}")
        .endRest();

结果是一样的

嗯。万一使用getOut（）不好，让我们试试getIn（）。 使用getIn（）的处理器

结果:

阳性病例：

代码详细信息 200 响应体 “eyJyZWNJZCI6IjEyMzQ1NiJ9”

（完成了双重编组）

否定情况：

400错误：请求错误 响应体 { “recId”：“123456” }

让我们彻底消除编组

rest().post("/{{camel.rest.version}}/myjson")
        .consumes("application/json").produces("application/json")
        .type(SampleRequest.class)
        .route().routeId("rest_myroute")
        .log(LoggingLevel.INFO, LoggingConst.API_REQ+" Recieved http request ${body}")
        .process(sampleProcessor).id("sample_transform")/*.streamCaching()*/
        .log(LoggingLevel.INFO, LoggingConst.API_RESP+" Response ${body}")
        .endRest();

积极结果：

代码详细信息 200 响应体 { “recId”：“123456” }

负面结果：

代码详细信息 400错误：请求错误 响应体 无法解析JSON。原始结果：

类MyResponse{ 累西德：123456 }

（接收到的原始数据）

在所有情况下，我的API日志在camel准备rest响应之前显示相同的结果：

{"timestamp":"2018-08-21T16:04:37.284+00:00","level":"INFO","logger_name":"rest_myroute","message":"ApiRq Recieved http request SampleRequest(msgMode=400)","traceId":"-4589659693669010018","spanId":"-3263510332551481190","camel.exchangeId":"ID-VRN26-1534867331800-0-3","camel.contextId":"IndividualClientService","camel.messageId":"ID-VRN26-1534867331800-0-4","camel.breadcrumbId":"ID-VRN26-1534867331800-0-3","camel.routeId":"rest_myroute","parentId":"-4589659693669010018"}
{"timestamp":"2018-08-21T16:04:37.288+00:00","level":"INFO","logger_name":"rest_myroute","message":"ApiRsp Response {\"recId\":\"123456\"}","traceId":"-4589659693669010018","spanId":"-3263510332551481190","camel.exchangeId":"ID-VRN26-1534867331800-0-3","camel.contextId":"IndividualClientService","camel.messageId":"ID-VRN26-1534867331800-0-4","camel.breadcrumbId":"ID-VRN26-1534867331800-0-3","camel.routeId":"rest_myroute","parentId":"-4589659693669010018"}

驼色版本：2.21.0.000033-fuse-000001-redhat-1

这是骆驼虫吗？如果是的话，它是怎么修复的？

---

有解决办法吗？

找到了解决方案。看起来驼峰默认路由配置会在发生错误时阻止编组实体。即使手动声明需要在.responseModel（MyClass.class）中编组

设置SkipBindingErrorCode（错误）

rest().post("/{{camel.rest.version}}/myjson")
        .consumes("application/json").produces("application/json")
        .type(SampleRequest.class)
        .route().routeId("rest_myroute")
        .log(LoggingLevel.INFO, LoggingConst.API_REQ+" Recieved http request ${body}")
        .process(sampleProcessor).id("sample_transform")/*.streamCaching()*/
        .log(LoggingLevel.INFO, LoggingConst.API_RESP+" Response ${body}")
        .endRest();

{"timestamp":"2018-08-21T16:04:37.284+00:00","level":"INFO","logger_name":"rest_myroute","message":"ApiRq Recieved http request SampleRequest(msgMode=400)","traceId":"-4589659693669010018","spanId":"-3263510332551481190","camel.exchangeId":"ID-VRN26-1534867331800-0-3","camel.contextId":"IndividualClientService","camel.messageId":"ID-VRN26-1534867331800-0-4","camel.breadcrumbId":"ID-VRN26-1534867331800-0-3","camel.routeId":"rest_myroute","parentId":"-4589659693669010018"}
{"timestamp":"2018-08-21T16:04:37.288+00:00","level":"INFO","logger_name":"rest_myroute","message":"ApiRsp Response {\"recId\":\"123456\"}","traceId":"-4589659693669010018","spanId":"-3263510332551481190","camel.exchangeId":"ID-VRN26-1534867331800-0-3","camel.contextId":"IndividualClientService","camel.messageId":"ID-VRN26-1534867331800-0-4","camel.breadcrumbId":"ID-VRN26-1534867331800-0-3","camel.routeId":"rest_myroute","parentId":"-4589659693669010018"}

@Bean
    RouteBuilder restConfiguration(){

        RouteBuilder restConfiguration = new RouteBuilder() {
            @Override
            public void configure() throws Exception{

                restConfiguration().component("servlet")
                        .bindingMode(RestBindingMode.json)
                        .skipBindingOnErrorCode(false) //!!!!!!!!! add this
                        .contextPath(apiContextPath); 
            }
        };
        return restConfiguration;
    }