LogicApp -如何检查集合是否为空
如果有addOn数组，我想要做的是将"xxx“这个词添加到名称的末尾。
Schema applied to message.
{
"properties": {
"appointment": {
"properties": {
"id": {
"type": "integer"
},
"lines": {
"items": {
"properties": {
"addOn": {
"items": {
"properties": {
"id": {
"type": "integer"
},
"name": {
"type": "string"
}
},
"required": [
"id",
"name"
],
"type": "object"
},
"type": "array"
},
"id": {
"type": "integer"
},
"price": {
"type": "integer"
}
},
"required": [
"id",
"price"
],
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"messageId": {
"type": "string"
}
},
"type": "object"
}
Message 1
{
"messageId": "11",
"appointment": {
"id": 22,
"lines": [
{
"id": 33,
"price": 125.0,
"addOn": [
{
"id": 44,
"name": "test"
}
]
}
]
}
}
Message 2
{
"messageId": "11",
"appointment": {
"id": 22,
"lines": [
{
"id": 33,
"price": 125.0
}
]
}
}Message 1工作正常，但是每当我尝试使用length或Parse时，我都会收到一条消息，表示addOn为null。
当没有addOn数组时，我如何才能将适当的条件表示为不获取任何错误或什么也不做。
逻辑应用程序
Message1 -好的
Message2 -误差
代码视图。{“定义”：{ "$schema"："https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#"，“actions：{ "For_each"：{ "For_each_2"：{ "actions"：{ "actions"：{}，"Condition_3"：{”Condition_3“：{ }，”表达式“：{”等于“：”@For_each(项目‘For_each_2’)“，"True”}，"runAfter"：{}，"type"："If“}，"foreach"："@items('For_each')'addOn'"，"runAfter"：{}，"type"："Foreach”}，"foreach"：“@body(‘Parse_JSON’)？‘Parse_JSON’行‘”，"runAfter"：{ "Parse_JSON"：“成功”}，“类型”："Foreach“}"Parse_JSON"：{“Parse_JSON”：{ "content"："@triggerBody()"，"schema"：{ "properties"：{ "id"：{ "type"：“整型”}，“行”：{“项目”：{“属性”：{ "addOn"：{“属性”：{ "id“：{”类型“：”整数“}，”名称“：{”类型“：”字符串“}，”必需“：”id“、”名称“、”类型“：”对象“}、”类型“：”数组“}，"id“：{”类型“：”整型“}、”价格“：{”类型“：”整数“}、”必需“：”id“、”价格“、”类型“：”对象“}、”类型“：”数组“}、”类型“：”对象“}、"messageId"：{”类型“：”字符串“}、”类型“：”类型“：”对象“}。"runAfter"：{}，“类型”："ParseJson“}，"contentVersion"："1.0.0.0"，”输出“：{}，”参数“：{}，”触发器“：{”手动“：{”输入“：{”模式“：{”属性“：{”任命“：{”属性“：{ "id"：{”类型“：”整数“}，“行”：{“项目”：{“属性”：{ "addOn"：{“属性”：{ "id“：{”类型“：”整数“}，”名称“：{”类型“：”字符串“}，”必需“：”id“、”名称“、”类型“：”对象“}、”类型“：”数组“}，"id"：{“类型”：“整型”}，“价格”：{“类型”：“整数”}，“必需”："id"，“价格”，"addOn“，”类型“：”对象“}，”类型“：”数组“}，”类型“：”对象“}，"messageId"：{”类型“：”字符串“}，“类型”：“对象”}，“种类”："Http"，“类型”：“请求”} }，“参数”：{} }
史蒂夫
回答 1
Stack Overflow用户
发布于 2022-07-15 01:18:35
我想在名字的末尾加上"xxx“这个词。
对于追加，您可以在设置"name“变量时直接添加。
或者，您也可以使用concat函数，如下所示。
concat(body('Parse_JSON')?['appointment']?['lines'][0]['addOn'][0]['name'],variables('xxx'))
如果这两种情况都会给出如下结果
--当没有addOn数组时，我如何才能将适当的条件表示为不获取任何错误或什么也不做。
如果行中包含"addOn“或不包含”addOn“，则可以通过多种方式使用其中一种解决方案。
"contains": ["@body('Parse_JSON')?['appointment']?['lines'][0]","addOn"]
MESSAGE1结果：
MESSAGE2结果：
您可以使用下面的代码视图在您的逻辑应用程序中复制相同的内容。
{
"definition": {
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
"actions": {
"Compose": {
"inputs": "@variables('Message')",
"runAfter": {
"For_each": [
"Succeeded"
]
},
"type": "Compose"
},
"For_each": {
"actions": {
"Condition": {
"actions": {
"Set_variable": {
"inputs": {
"name": "Message",
"value": {
"appointment": {
"id": "@body('Parse_JSON')?['appointment']?['id']",
"lines": [
{
"addOn": "addOn is NULL",
"id": "@items('For_each')?['id']",
"price": "@items('For_each')?['price']"
}
]
},
"messageId": "@{body('Parse_JSON')?['messageId']}"
}
},
"runAfter": {},
"type": "SetVariable"
}
},
"else": {
"actions": {
"For_each_2": {
"actions": {
"Set_variable_2": {
"inputs": {
"name": "Message",
"value": {
"appointment": {
"id": "@body('Parse_JSON')?['appointment']?['id']",
"lines": [
{
"addOn": [
{
"id": "@items('For_each_2')?['id']",
"name": "@{concat(body('Parse_JSON')?['appointment']?['lines'][0]['addOn'][0]['name'],variables('xxx'))}"
}
],
"id": "@items('For_each')?['id']",
"price": "@items('For_each')?['price']"
}
]
},
"messageId": "@{body('Parse_JSON')?['messageId']}"
}
},
"runAfter": {},
"type": "SetVariable"
}
},
"foreach": "@items('For_each')['addOn']",
"runAfter": {},
"type": "Foreach"
}
}
},
"expression": {
"and": [
{
"not": {
"contains": [
"@body('Parse_JSON')?['appointment']?['lines'][0]",
"addOn"
]
}
}
]
},
"runAfter": {},
"type": "If"
}
},
"foreach": "@body('Parse_JSON')?['appointment']?['lines']",
"runAfter": {
"Initialize_variable_xxx": [
"Succeeded"
]
},
"type": "Foreach"
},
"Initialize_variable": {
"inputs": {
"variables": [
{
"name": "Message",
"type": "object"
}
]
},
"runAfter": {
"Parse_JSON": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Initialize_variable_xxx": {
"inputs": {
"variables": [
{
"name": "xxx",
"type": "string",
"value": "xxx"
}
]
},
"runAfter": {
"Initialize_variable": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Parse_JSON": {
"inputs": {
"content": "@triggerBody()",
"schema": {
"properties": {
"appointment": {
"properties": {
"id": {
"type": "integer"
},
"lines": {
"items": {
"properties": {
"addOn": {
"items": {
"properties": {
"id": {
"type": "integer"
},
"name": {
"type": "string"
}
},
"required": [
"id",
"name"
],
"type": "object"
},
"type": "array"
},
"id": {
"type": "integer"
},
"price": {
"type": "integer"
}
},
"required": [
"id",
"price"
],
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"messageId": {
"type": "string"
}
},
"type": "object"
}
},
"runAfter": {},
"type": "ParseJson"
}
},
"contentVersion": "1.0.0.0",
"outputs": {},
"parameters": {},
"triggers": {
"manual": {
"inputs": {
"schema": {
"properties": {
"appointment": {
"properties": {
"id": {
"type": "integer"
},
"lines": {
"items": {
"properties": {
"addOn": {
"items": {
"properties": {
"id": {
"type": "integer"
},
"name": {
"type": "string"
}
},
"required": [
"id",
"name"
],
"type": "object"
},
"type": "array"
},
"id": {
"type": "integer"
},
"price": {
"type": "integer"
}
},
"required": [
"id",
"price",
"addOn"
],
"type": "object"
},
"type": "array"
}
},
"type": "object"
},
"messageId": {
"type": "string"
}
},
"type": "object"
}
},
"kind": "Http",
"type": "Request"
}
}
},
"parameters": {}
}https://stackoverflow.com/questions/72944461
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