本文介绍了如果基于更改值，Azure Logic应用程序条件不在循环中工作的处理方法，对大家解决问题具有一定的参考价值
问题描述
我需要编写一个简单的LogicApp，它连接到http端点，接收一些JSON，遍历JSON消息，然后根据消息中的值将其分块提交给不同的http端点。
通过这样做，我得出的结论是，For Each循环中的条件总是评估循环之前的条件，并执行与循环前的结果匹配的路径，即使结果应该已经更改，因为循环中的某些变量已经更新。
我已经用下面的例子说明了这个问题。
{
"definition": {
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
"actions": {
"Compose": {
"inputs": "@variables('TestStr')",
"runAfter": {
"Compose_3": [
"Succeeded"
]
},
"type": "Compose"
},
"Compose_3": {
"inputs": "@variables('TestArray')",
"runAfter": {
"For_each": [
"Succeeded"
]
},
"type": "Compose"
},
"For_each": {
"actions": {
"Compose_2": {
"inputs": "@variables('TestArray')",
"runAfter": {
"Condition": [
"Succeeded"
]
},
"type": "Compose"
},
"Condition": {
"actions": {
"Append_to_array_variable": {
"inputs": {
"name": "TestArray",
"value": "@items('For_each')"
},
"runAfter": {},
"type": "AppendToArrayVariable"
},
"Set_variable_2": {
"inputs": {
"name": "TestStr",
"value": "XXXX"
},
"runAfter": {
"Append_to_array_variable": [
"Succeeded"
]
},
"type": "SetVariable"
}
},
"else": {
"actions": {
"Set_variable": {
"inputs": {
"name": "TestStr",
"value": "not"
},
"runAfter": {},
"type": "SetVariable"
}
}
},
"expression": {
"and": [
{
"equals": [
"@variables('TestStr')",
"BlankValue"
]
}
]
},
"runAfter": {},
"type": "If"
}
},
"foreach": "@variables('FullArray')",
"runAfter": {
"Initialize_variable_3": [
"Succeeded"
]
},
"type": "Foreach"
},
"Initialize_variable": {
"inputs": {
"variables": [
{
"name": "TestStr",
"type": "String",
"value": "BlankValue"
}
]
},
"runAfter": {},
"type": "InitializeVariable"
},
"Initialize_variable_2": {
"inputs": {
"variables": [
{
"name": "TestArray",
"type": "Array"
}
]
},
"runAfter": {
"Initialize_variable": [
"Succeeded"
]
},
"type": "InitializeVariable"
},
"Initialize_variable_3": {
"inputs": {
"variables": [
{
"name": "FullArray",
"type": "Array",
"value": [
{
"key": "value1"
},
{
"key": "value2"
},
{
"key": "value3"
}
]
}
]
},
"runAfter": {
"Initialize_variable_2": [
"Succeeded"
]
},
"type": "InitializeVariable"
}
},
"contentVersion": "1.0.0.0",
"outputs": {},
"parameters": {},
"triggers": {
"Recurrence": {
"recurrence": {
"frequency": "Month",
"interval": 3
},
"type": "Recurrence"
}
}
}
}
我预计下面的LogicApp将执行三次循环，每次计算条件并只执行一次数组插入，其中TestArray包含
的一项{
"key":"value1"
}
和值为"Not"的字符串TestStr
但实际结果似乎不同-Test数组包含来自Full数组的所有三个条目，而TestStr为‘XXXX’
我在这里错过了什么？是否有解决办法？
推荐答案
我发现了此行为的原因。如果将来任何人遇到这一点，请在此处发帖。
for_each循环默认情况下是并行执行的。这就是在循环开始之前评估所有迭代的条件的原因。
有一种方法可以将其关闭--在Settings中，您可以打开并发控制并将parallelism设置为1
这篇关于如果基于更改值，Azure Logic应用程序条件不在循环中工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，WP2