我有这条骆驼路线:
from("direct:myRoute")
.id("myRoute")
.setHeader("accept", constant("application/json"))
.setHeader("Cache-Control", constant("no-cache"))
.setHeader("content-Type", constant("application/json"))
.setHeader(Exchange.HTTP_METHOD, constant("GET"))
.setHeader("ID",constant("0072168580"))
.removeHeader(Exchange.HTTP_PATH)
.removeHeader("CamelHttp*")
.setBody(simple("${null}"))
.streamCaching()
.to("http4" + URL)
.to("jolt:customerSpec.json?inputType=JsonString&outputType=JsonString&contentCache=true")
.log("Before: ${body}")
.filter()
.jsonpath("$.[?(@.customerId == '${header.ID}')]")
.log("After: ${body}");
我通过http4消费的服务返回一个用jolt转换的响应,到目前为止没问题。 JSON转换结果是:
[
{
"customerId": "0072168580",
"documentId": "IDO"
},
{
"customerId": "0072168580",
"documentId": "ID2"
},
{
"customerId": "0072168580",
"documentId": "CDO"
},
{
"customerId": "0072172460",
"documentId": "IDO"
},
{
"customerId": "0072172460",
"documentId": "ID2"
},
{
"customerId": "0072197658",
"documentId": "IDO"
},
{
"customerId": "0072197658",
"documentId": "ID2"
},
{
"customerId": "0072197658",
"documentId": "CDO"
}
]
转换后的日志显示:
INFO myRoute - Before: [{"customerId": "0072168580","documentId": "IDO"},{"customerId": "0072168580","documentId": "ID2"},{"customerId": "0072168580","documentId": "CDO"},{"customerId": "0072172460","documentId": "IDO"},{"customerId": "0072172460","documentId": "ID2"},{"customerId": "0072197658","documentId": "IDO"},{"customerId": "0072197658","documentId": "ID2"},{"customerId": "0072197658","documentId": "CDO"}]
然后,我想通过customerId过滤此响应,我在标题中设置了一个值来执行此操作:
.jsonpath("$.[?(@.customerId == '${header.ID}')]")
显然,jsonpath表达式没问题,因为日志显示我有符合过滤条件的元素:
...
[main] DEBUG com.jayway.jsonpath.internal.path.CompiledPath - Evaluating path: @['customerId']
[main] DEBUG com.jayway.jsonpath.internal.path.CompiledPath - Evaluating path: @['customerId']
[main] DEBUG com.jayway.jsonpath.internal.path.CompiledPath - Evaluating path: @['customerId']
[main] DEBUG org.apache.camel.processor.FilterProcessor - Filter matches: true for exchange: Exchange[ID-XYZ-1529020843413-0-1]
但是,过滤后的日志显示了相同的JSON,没有过滤它:
INFO myRoute - After: [{"customerId": "0072168580","documentId": "IDO"},{"customerId": "0072168580","documentId": "ID2"},{"customerId": "0072168580","documentId": "CDO"},{"customerId": "0072172460","documentId": "IDO"},{"customerId": "0072172460","documentId": "ID2"},{"customerId": "0072197658","documentId": "IDO"},{"customerId": "0072197658","documentId": "ID2"},{"customerId": "0072197658","documentId": "CDO"}]
我一直在测试在线工具中的过滤条件,例如http://jsonpath.com/,它可以运行:
可能出现什么问题?
非常感谢。
答案 0 :(得分:3)
我认为您误解了Filter EIP的含义:它根据谓词过滤消息,因此,在您的情况下,当交换内容与 jsonpath 谓词匹配时,消息会飞过下一步。
你有不同的方式来实现你想要的,即