Question

有一条具有多个可能的Rest-respons的Rest-route（它们的类型不同，但让我们假设它只是MyResponse.class）。

rest().post("/{{camel.rest.version}}/myjson")
        .consumes("application/json").produces("application/json")
        .type(SampleRequest.class)
        .responseMessage().code("200").responseModel(MyResponse.class).endResponseMessage()
        .responseMessage().code("400").responseModel(MyResponse.class).endResponseMessage()
        .responseMessage().code("500").responseModel(MyResponse.class).endResponseMessage()
        .route().routeId("rest_myroute")
        .log(LoggingLevel.INFO, "API_REQ Recieved http request ${body}")
        .process(sampleProcessor).id("sample_transform")
        .log(LoggingLevel.INFO, "API_RESP Response ${body}")
        .endRest();

处理器执行一些验证/业务逻辑。大致看起来像：

@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);
}

肯定案例的执行结果：

代码详细信息 200 反应体 { “ recId”：“ 123456” }

500或400箱代码详细信息 400错误：请求错误响应头连接：保持活动状态

（没有身体）

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();

结果相同。

好的。万一使用getOut（）不好，请尝试使用getIn（）。使用getIn（）的处理器

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

结果：

正例：

代码详细信息 200 反应体 “ eyJyZWNJZCI6IjEyMzQ1NiJ9”

（已完成双重编组）

否定情况：

400错误：错误的请求反应体 { “ recId”：“ 123456” }

让我们彻底删除编组！

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();

肯定的结果：

代码详细信息 200 反应体 { “ recId”：“ 123456” }

阴性结果：

代码详细信息 400错误：请求错误反应体无法解析JSON。原始结果：

MyResponse类{ recId：123456 }

（收到的原始数据）

在所有情况下，我的API日志在骆驼准备休息响应之前都显示相同的结果：

{"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"}

骆驼版本：2.21.0.000033-fuse-000001-redhat-1

这是骆驼虫吗？如果是这样，它固定了吗？有解决方法吗？

Answer 1

找到了解决方案。看起来像骆驼默认路由配置，如果发生错误，可以防止编组机构。即使您手动声明需要在.responseModel（MyClass.class）中编组

设置skipBindingOnErrorCode（false）

@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;
    }

当HttpCode！= 200

1 个答案: