Question

我已经为此工作了一段时间，但我只是不明白为什么我的JSON无效...

JSONLint显示此错误

    Error: Parse error on line 107:
...pair?",      "answer": "Yes, as long as the
----------------------^
Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '[', got 'undefined'

这是JSON的片段

{
    "tags": "already transferred",
    "question": "Can we transfer customers who have already been transferred previously? what is the dispo? warm transfer or already contacted?",
    "answer": "Yes, mark as already contacted."
},

{
    "tags": "secured debt",
    "question": "If customer only has secured debts, can we still offer credit repair?",
    "answer": "Yes, as long as they have at least $100 in secured/unsecured debt.
    "},




    {
        "tags": "state",
        "question": "Is the program state sensitive?",
        "answer": "Yes, each partner has particular states that they service. The script engine will only offer services when the state is valid for partner who has that service."
    },

说“是的，只要很久”就失败了

JSON是在ColdFusion中动态创建的。

<cfscript>faqCounter=1;</cfscript>
    <CFLOOP query="getFAQs">
         <cfoutput>
            {"tags":"#getFAQs.tags#","question":"#getFAQs.question#","answer":"#getFAQs.answer#"}<cfif faqCounter<getFAQCount.getFAQPertinentCount>,</cfif>
         </cfoutput>
        <cfscript>faqCounter++;</cfscript>
    </CFLOOP>

Answer 1

在引号“”内有一个CRLF

"answer": "Yes, as long as they have at least $100 in secured/unsecured debt.
"},

Answer 2

问题在于该字符串包含一个换行符作为文字，应为\n。在大多数语言中，您都可以将数据过滤或序列化为JSON，它将为您处理这些转换。

请考虑以下https://helpx.adobe.com/coldfusion/cfml-reference/coldfusion-functions/functions-s/serializejson.html的代码段

此脚本利用serializeJSON()函数将数据转换为JSON

<cfscript>
       example = structnew();
       example.firstname = "Yes";
       example.lastname = "Man";
       // changing the default serialization by specifying the type of "firstname" as string
       metadata = {firstname: {type:"string"}};
       example.setMetadata(metadata);
       writeoutput(SerializeJSON(example));
</cfscript>

{"LASTNAME":"Man","FIRSTNAME":"Yes"}

Answer 3

（正如其他答案已经指出的那样，问题在于未转义的新行破坏了JSON。这是避免DIY JSON的原因之一。相反，请使用内置函数{{3 }}。）

Lucee 5.2.8.39 +

尝试对SerializeJSON()的新支持。新的设置使您可以覆盖序列化查询对象时使用的奇异默认CF：

// serialize queries as an array of structures AND
// preserves the column name case used in the sql
this.serialization.preserveCaseForStructKey = true;
this.serialization.serializeQueryAs = "struct";

现在，您可以跳过所有查询循环。只需执行查询并调用serializeJSON( yourQuery )，就可以生成一个看起来非常合理的字符串，如下所示：

[
  {
    "answer": "Yes, mark as already contacted.",
    "tags": "already transferred",
    "question": "Can we transfer customers who have already been transferred previously? what is the dispo? warm transfer or already contacted?"
  },
  {
    "answer": "Yes, as long as they have at least $100 in secured/unsecured debt.  ",
    "tags": "secured debt",
    "question": "If customer only has secured debts, can we still offer credit repair?"
  }
]

早期的Lucee版本

对于早期版本，请执行JSON serialization-related settings in the Application.cfc。建立一系列结构。然后使用@Barmar recommended将数组转换为格式正确的JSON字符串。

serializeJSON

   <cfset yourArray = []>

   <cfloop query="getFAQs">
      <cfset yourArray.append( { "tags" : getFAQs.tags
                               , "question" : getFAQs.question
                               , "answer": getFAQs.answer
                             } )>    
   </cfloop>

   <cfset jsonString = serializeJSON( yourArray )>

如何删除新行？

生成“适当的” JSON字符串后，运行Runnable Example并将\n替换为空字符串。

  <cfset jsonString  = replace(jsonString , "\n", "", "all")>

要永久删除它们，您必须首先找到将它们插入数据库的代码，然后在其中进行修改。此外，更新任何现有的数据库记录以删除“ \ n”。

为什么我的JSON即使看起来正确也仍然无效？

3 个答案: