[英]After REST API call ,i have key/value pair in the below format ,I Need to extract just the specific value corresponding to the key
选项 1:如果我使用 TALEND 作业,我会出于某种原因将 JSON 结果与反斜杠一起存储在 JSON 文件中(这是无法解析的)
{"read":[{"Body":"{\"items\":[{\"executionId\":\"a0613a31-d16d-4c4d-9279-4564a86cdd44\",\"startTimestamp\":\"2021-09-15T22:30:26.854Z\",\"triggerTimestamp\":\"2021-09-15T22:30:27.209Z\",\"userId\":\"user1\",\"status\":\"dispatching\",\"runtime{\"type\":\"REMOTE_ENGINE_CLUSTER\"},\"executionStatus\":\"DISPATCHING_FLOW\"},{\"executionId\":\"49a56eb1-f3c7-4f26-9554-8fa88acde38b\",\"startTimestamp\":\"2021-09-15T22:29:15.999Z\",\"triggerTimestamp\":\"2021-09-15T22:29:16.447Z\",\"userId\":\"user1\",\"executionType\":\"MANUAL\",\"status\":\"dispatching\",\"runtime\":{\"type\":\"REMOTE_ENGINE_CLUSTER\"},\"executionStatus\":\"DISPATCHING_FLOW\"}],\"limit\":100,\"offset\":0,\"total\":2}","ERROR_CODE":null}]}
选项 2:使用 WEB URL:在 REST API 调用后,我有 JSON 结果,如:
身体: context.statusbody
{
"items": [{
"executionId": "4f679c12-d8d7-4dd7-89d5-507a94503988",
"startTimestamp": "2021-09-14T19:05:01.854Z",
"triggerTimestamp": "2021-09-14T19:05:02.385Z",
"userId": "user1",
"taskId": "60b7f6d31c6e394de0163d35",
"status": "dispatching",
"runtime": {
"type": "REMOTE_ENGINE_CLUSTER"
},
"executionStatus": "DISPATCHING_FLOW"
},
{
"executionId": "4f40b04c-1ac1-42ea-9a36-7c25b1b17fe8",
"startTimestamp": "2021-09-14T19:00:24.769Z",
"triggerTimestamp": "2021-09-14T19:00:25.122Z",
"userId": "user1",
"taskId": "60b7f6d31c6e394de0163d35",
"executionType": "SCHEDULED",
"status": "dispatching",
"runtime": {
"type": "REMOTE_ENGINE_CLUSTER"
},
"executionStatus": "DISPATCHING_FLOW"
}
],
"limit": 100,
"offset": 0,
"total": 2
}
由此我只需要为每次迭代提取 executionID 和 triggerTimestamp 并存储在一个全局变量中
在我变灰的 tjava3 中,我将全局变量用作:
context.testexecutionID=((String)globalMap.get("executionID"));
context.triggerTimestamp=((String)globalMap.get("triggerTimestamp"));
context.executionID=context.testexecutionID.substring(5, context.testexecutionID.lastIndexOf("\"")-3);
好的,Json i 用于您的案例来满足您的要求:
请注意,您的 Json 无效
{
"items": [{
"executionId": "6e5fa777-9ede-42b9-b862-03b4b1b12375",
"startTimestamp": "2021-09-15T05:59:40.599Z",
"triggerTimestamp": "2021-09-15T05:59:41.006Z",
"userId": "user"
}],
"limit ": 100,
"offset ": 0,
"total ": 2
}
在不知道你的工作设计的情况下,我只是得到了张贴在这里的输出。
我的工作设计是这样的:
重要的 ! :你的 tFileInputJson 应该是这样的,以获得 2 个字段
如果您想使用 tExtractJSONFields ,请使用相同的配置。
存储您的全局变量:
获得 globalVariables 的简单方法是使用 tfixedFlowInput :
输出 :
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