如何在ColdFusion< 2016中的结构中保留分配顺序 [英] How can I preserve the assign order in a structure in ColdFusion <2016

问题描述

ColdFusion不会保留将元素分配给结构的顺序.
在我的特定情况下，这需要我从该结构创建SOAP信封，而接收方需要按特定顺序在信封中进行数据处理.
从ColdFusion 2016及更高版本开始，StructNew()方法中提供了一个类型"选项，您可以在其中指定订购".不幸的是，我仍在使用CF9.02 ...例如(在CF9中):

ColdFusion doesn't preserve the order in which elements were assigned to the structure.
This gives a problem when, in my particular case, I need to create a SOAP envelope from this structure and the receiver needs to data in the envelope in a particular order.
Starting from ColdFusion 2016 and higher, there is a "type" option in the StructNew() method where you can specify "Ordered". Unfortunately, I'm still on CF9.02... For example (in CF9):

<cfscript>
       myStruct=StructNew();
       myStruct.one=StructNew();
       myStruct.one.item1="Old Trafford";
       myStruct.one.item2="Anfield";
       myStruct.two=StructNew();
       myStruct.two.item3="Stamford Bridge";
       myStruct.two.item4="Villa Park";
       myStruct.three=StructNew();
       myStruct.three.item5="St James Park";
       myStruct.three.item6="Emirates Stadium";
       WriteDump(myStruct);
</cfscript>

输出:

{"ONE":{"ITEM2":"Anfield","ITEM1":"Old Trafford"},"THREE":{"ITEM6":"Emirates Stadium","ITEM5":"St James Park"},"TWO":{"ITEM4":"Villa Park","ITEM3":"Stamford Bridge"}}

如您所见，订单被打乱了.

As you can see, the order is scrambled.

第二个问题是大写.所有项目都转换为大写...
对于SOAP信封，这是一个问题，因为它区分大小写.

A second problem is the UPPERCASE. All the items are transformed to uppercase...
This is a problem for a SOAP envelope, because it is case sensitive.

推荐答案

1. 订购.
   解决方案是使用Java LinkedHashMap，它可以像ColdFusion中的结构一样使用.
   所以，我只需要更换 StructNew();
   使用: createObject("java"，"java.util.LinkedHashMap").init();

大写:
通过其字符串名称分配/寻址它们.这样可以保留大小写.

Uppercase:
Assign/address them though their string name. This will preserve the case.

因此，示例变为:

<cfscript>
       myStruct=createObject("java", "java.util.LinkedHashMap").init();
       myStruct['one']=createObject("java", "java.util.LinkedHashMap").init();
       myStruct['one']['item1']="Old Trafford";
       myStruct['one']['item2']="Anfield";
       myStruct['two']=createObject("java", "java.util.LinkedHashMap").init();
       myStruct['two']['item3']="Stamford Bridge";
       myStruct['two']['item4']="Villa Park";
       myStruct['three']=createObject("java", "java.util.LinkedHashMap").init();
       myStruct['three']['item5']="St James Park";
       myStruct['three']['item6']="Emirates Stadium";
       WriteDump(SerializeJSON(myStruct));
</cfscript>

输出:

{"one":{"item1":"Old Trafford","item2":"Anfield"},"two":{"item3":"Stamford Bridge","item4":"Villa Park"},"three":{"item5":"St James Park","item6":"Emirates Stadium"}}

井井有条并保留大小写！

Nicely ordered and case preserved!

这篇关于如何在ColdFusion< 2016中的结构中保留分配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IT屋！