"如何解决`删除SerializeJSON（）的默认字母顺序'

问题描述

我正在尝试向第三方API添加请求中的序列化数据，这需要维护数据的特定顺序，但是SerializeJSON按字母顺序排序，这破坏了第三方API要求的格式。有人可以帮我弄清楚吗

I'm trying to add the serialized data in a request to third party API which needs a specific order of the data to be maintained, but SerializeJSON orders in alphabetical order which breaks the format required by the third party API. Could someone help me to figure it out

输入：

<cfset data ={
                "Booking": {
                    "ActionCode":"DI",
                    "AgencyNumber":"23",
                    "Touroperator":"TVR",
                    "BookingNumber":"323",
                },
                "Payment": {
                    "__type":"paymenttype",
                    "PaymentProfile": {
                        "Value": 4,
                        "Manual": false
                    },
                    "PaymentType": 4,
                    "PaymentAction":2,
                    "Details": {
                        "IBAN": "DE02120300000000202051",
                        "BIC": "BYLADEM1001"
                    }
                },
                "Login":{
                    "UserCode": "usercode",
                    "Password": "password"
                }
            }>

使用此方法 SerializeJSON（）在我的数据上：

When this method SerializeJSON() is used on my data:

SerializeJSON(data)

当前输出

"{"Booking":{"Touroperator":"TVR","ActionCode":"DI","BookingNumber":"323","AgencyNumber":"23"},"Login":{"UserCode":"usercode","Password":"password"},"Payment":{"PaymentProfile":{"Manual":false,"Value":4},"PaymentType":4,"PaymentAction":2,"__type":"paymenttype","Details":{"BIC":"BYLADEM1001","IBAN":"DE02120300000000202051"}}}"

预期输出：

"{"Booking":{"ActionCode":"DI","AgencyNumber":"23","Touroperator":"TVR","BookingNumber":"323",},"Payment":{"__type":"paymenttype","PaymentProfile":{"Value":4,"Manual":false},"PaymentType":4,"PaymentAction":2,"Details":{"IBAN":"DE02120300000000202051","BIC":"BYLADEM1001"}},"Login":{"UserCode":"usercode","Password":"password"}}"

推荐答案

ColdFusion中的结构是无序的HashMap，因此根本没有任何顺序。您可以使用（ColdFusion 2016引入）。不幸的是，您不能再使用文字语法了，但是我想您还是要动态生成数据。

Structs in ColdFusion are unordered HashMaps, so there is no order at all. You can keep insertion order by using structNew("Ordered") (introduced with ColdFusion 2016). Unfortunately you can no longer use the literal syntax anymore, but I assume you are generating the data dynamically anyway.

<cfset data = structNew("Ordered")>

<cfset data["Booking"] = structNew("Ordered")>
<cfset data["Booking"]["ActionCode"] = "DI">
<cfset data["Booking"]["AgencyNumber"] = "TVR">
<cfset data["Booking"]["BookingNumber"] = "323">

<cfset data["Payment"] = structNew("Ordered")>
<cfset data["Payment"]["__type"] = "paymenttype">
<cfset data["Payment"]["PaymentProfile"] = structNew("Ordered")>
<cfset data["Payment"]["PaymentProfile"]["Value"] = 4>
<cfset data["Payment"]["PaymentProfile"]["Manual"] = false>

etc.

如果您使用的是旧版ColdFusion，则您将必须使用Java的LinkedHashMap。

If you are stuck on an older ColdFusion version, you will have to use Java's LinkedHashMap.

<cfset data = createObject("java", "java.util.LinkedHashMap")>

<cfset data["Booking"] = createObject("java", "java.util.LinkedHashMap")>
<cfset data["Booking"]["ActionCode"] = "DI">
<cfset data["Booking"]["AgencyNumber"] = "TVR">
<cfset data["Booking"]["BookingNumber"] = "323">

<cfset data["Payment"] = createObject("java", "java.util.LinkedHashMap")>
<cfset data["Payment"]["__type"] = "paymenttype">
<cfset data["Payment"]["PaymentProfile"] = createObject("java", "java.util.LinkedHashMap")>
<cfset data["Payment"]["PaymentProfile"]["Value"] = 4>
<cfset data["Payment"]["PaymentProfile"]["Manual"] = false>

etc.

但请注意：LinkedHashMap区分大小写（并且也是类型敏感的：如果您的键是数字，那就很重要！）。

But be aware: LinkedHashMap is case-sensitive (and also type-sensitive: in case your keys are numbers, it does matter!).

<cfset data = createObject("java", "java.util.LinkedHashMap")>

<cfset data["Test"] = "">
<!---
    accessing data["Test"] = works
    accessing data["test"] = doesn't work
    accessing data.Test    = doesn't work
--->

---

您可能会遇到的另一个问题：由于ColdFusion内部类型转换， serializeJSON（）可能会以意想不到的方式对数字和布尔值进行字符串化处理。像这样的东西：

---

Another issue you might encounter: Due to ColdFusion's internal type casting, serializeJSON() might stringify numbers and booleans in an unintended way. Something like:

<cfset data = structNew("Ordered")>
<cfset data["myBoolean"] = true>
<cfset data["myInteger"] = 123>

很容易变成这样：

{
    "myBoolean": "YES",
    "myInteger": 123.0
}

（注意：上面的文字语法完全可以正常工作，但是如果将值作为变量/参数传递，则最终会进行强制转换。）

(Note: The above literal syntax would work perefectly fine, but if you are passing the values around as variables/arguments, casting eventually happens.)

最简单的解决方法是在序列化之前显式转换值：

The easiest workaround is explicitly casting the value before serializing:

<cfset data = structNew("Ordered")>
<cfset data["myBoolean"] = javaCast("boolean", true)>
<cfset data["myInteger"] = javaCast("int", 123)>

这篇关于"如何解决`删除SerializeJSON（）的默认字母顺序'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，也希望大家多多支持！