仅当密钥{
"total_results": 23,
"total_pages": 1,
"prev_url": null,
"next_url": null,
"resources": [
{
"entity": {
"credentials": {},
"binding_options": {},
"gateway_data": null,
"gateway_name": "",
"syslog_drain_url": null,
"volume_mounts": [],
"name": null,
"last_operation": {
"type": "create",
"state": "succeeded",
"description": "",
"updated_at": "2018-10-15T19:13:57Z",
"created_at": "2018-10-15T19:13:57Z"
},
"app_url": "/v2/3"
}
},
{
"entity": {
"app_guid": "sd",
"service_instance_guid": "sd",
"credentials": {
"hostname": "w",
"port": 3306
},
"binding_options": {},
"gateway_data": null,
"gateway_name": "",
"syslog_drain_url": null,
"volume_mounts": [],
"name": null,
"last_operation": {
"type": "create",
"state": "succeeded",
"description": "",
"updated_at": "2018-10-15T19:24:06Z",
"created_at": "2018-10-15T19:24:06Z"
},
"app_url": "/v2/3"
}
},
{
"entity": {
"credentials": {
"credhub-ref": "ref3"
},
"binding_options": {},
"gateway_data": null,
"gateway_name": "",
"syslog_drain_url": null,
"volume_mounts": [],
"name": null,
"last_operation": {
"type": "create",
"state": "succeeded",
"description": "",
"updated_at": "2019-03-19T20:07:27Z",
"created_at": "2019-03-19T20:07:27Z"
},
"app_url": "/v2/45"
}
},
{
"entity": {
"credentials": {
"credhub-ref": "ref4"
},
"binding_options": {},
"gateway_data": null,
"gateway_name": "",
"syslog_drain_url": null,
"volume_mounts": [],
"name": null,
"last_operation": {
"type": "create",
"state": "succeeded",
"description": "",
"updated_at": "2019-03-19T20:07:27Z",
"created_at": "2019-03-19T20:07:27Z"
},
"app_url": "/v2/45"
}
}
]
}
存在于以下JSON中时，我才尝试选择凭据对象：
cat my_bindings_test2.json | jq '.resources[] | .entity.credentials'使用{}
{
"hostname": "w",
"port": 3306
}
{
"credhub-ref": "ref3"
}
{
"credhub-ref": "ref4"
}
时，我得到：
{
"credhub-ref": "ref3"
}
{
"credhub-ref": "ref4"
}
使用JQ，我将如何获得以下结果？
=IF(OR(ISBLANK(A2),ISBLANK(B2)), 0, 1)答案 0 :(得分：1)
或者，您可以考虑使用简单的unix实用程序 jtc 遍历JSON：
bash $ <file.json jtc -w'<credhub-ref>l:[-1]'
{
"credhub-ref": "ref3"
}
{
"credhub-ref": "ref4"
}
bash $
答案 1 :(得分：1)
赞：
jq '.resources[].entity.credentials|select(has("credhub-ref"))' file.json
答案 2 :(得分：1)
如果保证不会credhub-ref或null，则可以使用false：
select(.["credhub-ref"])否则请参考@ hek2mgl的答案。