带有查询的 CFC 中的通信故障链接

Question

我有一个 CFC，负责处理招聘网站上的“联系我们”类型的表单。 cfc 旨在处理来自站点的几种不同形式；一个通用的“联系我们”表单和另一个“我对此工作感兴趣”表单。

当 CFC 获取数据，并且职位发布的 ID# 包含在参数中时，CFC 会进行快速查询并获取职位发布信息，将其包含在电子邮件中并向 HR 部门和用户发送包含职位发布信息以及用户联系信息的电子邮件。

如果未检测到 ID，CFC 只会向用户发送一封确认电子邮件并将联系信息发送给 HR 部门。

处理通用（非 ID）表单后一切正常。但是，当需要处理包含快速查询的表单时，我收到一个错误：

Communications link failure The last packet successfully received from the server was 61,380 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.

为什么填充我的页面的查询可以正常工作，但此 CFC 会在其中引发查询错误？

我们在共享主机环境中使用 MYSQL 运行 CF9。

CFC...

<cfif len(local.data.job_id)>
        <cftry>
        <cfquery name="qJobsforEmail" datasource="#application.datasource#" username="#application.username#" password="#application.password#">
            SELECT * FROM #local.data.table# WHERE #local.data.table#.#local.data.column#= <cfqueryparam value="#local.data.job_id#" cfsqltype="cf_sql_numeric">
        </cfquery>
        <cfcatch type="any">
            <cfmail to="my@email.com" from="server@host.com" subject="Error processing query" type="html">
            <h3>There was an error processing the query</h3>
            <p><cfoutput>#cfcatch.Detail#</cfoutput></p>
            <p><cfoutput>#cfcatch.NativeErrorCode#</cfoutput></p>
            <p><cfoutput>#cfcatch.SQLState#</cfoutput></p>
            <p><cfoutput>#cfcatch.Sql#</cfoutput></p>
            <p><cfoutput>#cfcatch.queryError#</cfoutput></p>
            <p><cfoutput>#cfcatch.where#</cfoutput></p>
            <p><cfoutput>#cfcatch.type#</cfoutput></p>
            <cfdump var="#local#">
            </cfmail>
            <cfset local.response["error"] = 'true'>
            <cfset local.response["message"] = 'Error message to the page goes here...'>
            <cfreturn local.response>
            <cfabort>
        </cfcatch>
        </cftry>
        <cftry>
        <cfmail to="#local.data.email#" bcc="hr@theclient.com"  from="server@host.com" subject="Thank you for contacting us" type="html">
        <h2>We&rsquo;re glad you contacted us.</h2>
        <p>Warm and fuzzy thank you message here</p>
        <p>We received the following information on <cfoutput>#DateFormat(Now())#</cfoutput>, <cfoutput>#TimeFormat(Now())#</cfoutput>: </p>
        <p>First Name: <cfoutput>#local.data.first_name#</cfoutput></p>
        <p>Last Name: <cfoutput>#local.data.last_name#</cfoutput></p>
        <cfif len(local.data.suffix)>
            <p>Suffix: <cfoutput>#local.data.suffix#</cfoutput></p>
        </cfif>
        <p>Specialty: <cfoutput>#local.data.specialty#</cfoutput></p>
        <p>Email Address: <cfoutput>#local.data.email#</cfoutput></p>
        <p>Phone: <cfoutput>#local.data.phone#</cfoutput></p>
        <p> Current City and State: <cfoutput>#local.data.city#</cfoutput></p>
        <cfif len(local.data.comments)>
            <p>Message: <cfoutput>#local.data.comments#</cfoutput></p>
        </cfif>
        <p style="border-top:thin dotted black;padding-top:20px;font-weight:bold;">This is the position you&rsquo;re inquiring about:</p>
        <p style="font-weight:bold;"><cfoutput>#qJobsforEmail.title#</cfoutput></p>
        <p style="padding-bottom:20px;"><cfoutput>#qJobsforEmail.description#</cfoutput></p>
        <p>Our Recruiter will review this information and get in touch with you as soon as possible. Please make sure your email or phone number listed above is correct.</p>
        <p>Thanks again for contacting us. We look forward to speaking with you soon.</p>
        </cfmail>
        <cfcatch type="any">
            <cfmail to="my@email.com" from="server@host.com" subject="Error processing email" type="html">
            <h3>There was an error processing the email at</h3>
            <cfdump var="#cfcatch.Detail#">
            <cfdump var="#local#">
            </cfmail>
            <cfset local.response["error"] = 'true'>
            <cfset local.response["message"] = 'message to return to the page...'>
            <cfreturn local.response>
            <cfabort>
        </cfcatch>
        </cftry>

    <cfelse>

<!-- regular ol form process goes here -->
</cfif>

Answer 1

我认为这不是您的代码的问题，而是您的托管公司应该调查的问题。

可能发生的情况是 ColdFusion 正在尝试从其连接池中重用数据库连接，但通信链接已断开。您通常可以通过向数据源设置添加验证查询（例如 SELECT 1）或禁用连接池来解决此问题。

我必须感谢 Steven Erat 在这个特定问题上的知识：http://forums.adobe.com/message/3396333#3396333