ColdFusion和jQuery的AJAXColdFusion、jQuery、AJAX
2023-09-10 19:54:39
作者：太美好易破碎
我的CFC的工作，因为我可以调用它，并获取数据的JSON字符串，但是，我的jQuery ajax调用给我一个错误语法错误：JSON.parse：数据意外结束。
Ajax调用：
$。阿贾克斯（{
键入：搞定，
网址：/surveymanagement/admin/client.cfc
数据类型：JSON，
数据： {
方法：GetClientsByName
名称：IM
}，
成功：功能（数据）{
$（＃这里）的HTML（数据）。
}，
错误：功能（A，B，C）{
$（＃这里）的html（a.responseText + C）。
}
}）;
当我调用组件在其他CFM页我的CFC返回字符串： [{CLIENT_ID：58，CLIENT_NAME：Aimbridge}，{CLIENT_ID：104，CLIENT_NAME ：IMF}] 。
什么可能我的问题是什么？
另外，如果我直接去我CFC在浏览器 http://domain.com/filepath/client.cfc?method=GetClientsByName&name=im 我不要错误，但它仅仅是一个白色的屏幕。我不知道我应该当我直接去它被看到。
为求这里所有的信息是client.cfc：
＆LT; CFCOMPONENT＆GT;
＆所述; cfsetting showdebugoutput =无＆GT;
＆LT; cffunction名=GetClientsByName
访问=远程
返回类型=字符串
提示=得到的搜索字词客户＆GT;
＆LT; cfargument名称=名称TYPE =字符串要求=是＆GT;
＆LT; CFSET VAR UTIL =的CreateObject（组件，/ surveymanagement / JSONUtil）＆GT;
＆所述; CFSET变种结果= arrayNew（1）＆GT;
＆LT; CFSET VAR的elem =＆GT;
＆LT; CFQUERY NAME =GetClientsByName数据源=＃application.dsn＃＆GT;
SELECT CLIENT_ID，CLIENT_NAME
来自客户端
其中，客户LIKE＆LT; cfqueryparam cfsqltype =cf_sql_varchar值=％＃arguments.name＃％＆GT;
＆LT; / CFQUERY＆GT;
＆LT; CFLOOP查询=GetClientsByName＆GT;
＆LT; CFSET ELEM = structNew（）＆GT;
＆LT; CFSET ELEM [CLIENT_ID] = GetClientsByName.client_id＆GT;
＆LT; CFSET ELEM [CLIENT_NAME] = GetClientsByName.client_name＆GT;
＆LT; CFSET arrayAppend（结果，ELEM）＆GT;
＆LT; / CFLOOP＆GT;
＆LT; cfcontent类型=应用/ JSON的复位=真正的＆GT;
＆LT; cfreturn util.serializeJSON（结果）＆GT;
＆LT; / cffunction＆GT;
＆LT; / CFCOMPONENT＆GT;
注：我使用coldfusion7所以我不能使用 returnformat ='json的
的Application.cfc或许真的走到歪在这里：
＆LT; CFCOMPONENT
显示名称=应用程序
输出=真
提示=处理应用程序＆GT;
＆LT; CFSET THIS.Name =SurveyManagement/＆GT;
＆LT; CFSET THIS.ApplicationTimeout = CreateTimeSpan（0,1,0,0）/＆GT;
＆LT; CFSET THIS.SessionManagement = TRUE /＆GT;
＆LT; CFSET THIS.SetClientCookies = FALSE /＆GT;
＆LT; cffunction
NAME =OnApplicationStart
访问=公共
返回类型=布尔
输出=假
当第一次创建时触发的应用程序。暗示=＆GT;
＆LT; cfreturn真/＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnSessionStart
访问=公共
返回类型=无效
输出=假
当第一次创建时触发的会话。暗示=＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnRequestStart
访问=公共
返回类型=布尔
输出=假
提示=火灾在页面处理的第一部分。＆GT;
＆LT; cfargument
NAME =TargetPage
TYPE =字符串
所需=真
/＆GT;
＆LT; cfparam名=variables.this_query_string默认值=＆GT;
＆LT; CFIF cgi.QUERY_STRING NEQ＆GT;
＆LT;？＃cgi.QUERY_STRING＃CFSET variables.this_query_string =＆GT;
＆LT; / CFIF＆GT;
＆LT; cfparam名=server.ThisServer默认值=www4.mydomain.com＆GT;
＆LT; CFIF cgi.SERVER_PORT NEQ443或cgi.HTTP_HOST情商www.mydomain.com＆GT;
＆LT; cflocation URL =HTTPS：//#server.ThisServer##cgi.PATH_INFO##variables.this_query_string#addtoken =无＆GT;
＆LT; / CFIF＆GT;
＆LT; cfparam名=form.fieldnames默认值=＆GT;
＆LT; CFLOOP列表=＃form.fieldnames＃指数=我＆GT;
＆LT; CFIF评估（我）NEQ＆GT;
＆LT; CFSET form_value_temp =评估（I）GT;
＆所述; CFSET form_value_temp =取代（form_value_temp，＆所述;，＆安培;其中;，所有）＆GT;
＆所述; CFSET form_value_temp =取代（form_value_temp，＆gt;中，与＆amp; gt;中，所有）＆GT;
＆LT; CFSET的形式＃I＃= form_value_temp＆GT;
＆LT; / CFIF＆GT;
＆LT; / CFLOOP＆GT;
＆LT; cfreturn真/＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnRequest
访问=公共
返回类型=无效
输出=真
提示=之后pre页面处理火灾就完成了。＆GT;
＆LT; cfargument
NAME =TargetPage
TYPE =字符串
所需=真
/＆GT;
＆LT; CFSET application.dsn =SurveyManagement＆GT;
＆LT; CFSET application.title =测量管理站点＆GT;
＆LT; CFSET application.directory =surveymanagement＆GT;
＆LT; CFSET application.cfc_data =surveymanagement＆GT;
＆LT; cfinclude模板=＃ARGUMENTS.TargetPage＃/＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnRequestEnd
访问=公共
返回类型=无效
输出=真
提示=页面处理火灾后完成。＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnSessionEnd
访问=公共
返回类型=无效
输出=假
提示=火灾时，会话将被终止。＆GT;
＆LT; cfargument
NAME =SessionScope
TYPE =结构
所需=真
/＆GT;
＆LT; cfargument
NAME =ApplicationScope
TYPE =结构
所需=假
默认值=＃StructNew（）＃
/＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =OnApplicationEnd
访问=公共
返回类型=无效
输出=假
提示=火灾时，该应用程序将被终止。＆GT;
＆LT; cfargument
NAME =ApplicationScope
TYPE =结构
所需=假
默认值=＃StructNew（）＃
/＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
＆LT; cffunction
NAME =的OnError
访问=公共
返回类型=无效
输出=真
提示=时触发异常occures未捕获一个try / catch。＆GT;
＆LT; cfargument名=除非需要=真/＆GT;
＆LT; P＆gt;一种意外出错＆LT; / P＆GT;
＆LT; P＆gt;请咨询您的建议技术支持联系以获得帮助和LT; / P＆GT;
＆LT; CFIF findnocase（这里的IP地址，cgi.REMOTE_ADDR）或findnocase（这里的IP地址，cgi.REMOTE_ADDR）＆GT;
＆所述; cfdump变种=＃Except.RootCause＃＆GT;
＆LT; / CFIF＆GT;
＆LT; cfreturn /＆GT;
＆LT; / cffunction＆GT;
解决方案
我不知道这是否会帮助，但我的工作与angularjs数据的工作，并期待在这个帖子：会谈上使用CFC的瓦特/输出需要创建自己的JSON（还演示了如何CFMX处理JSON调用）有点
在ColdFusion MX的一个名为CFC直接返回WDDX。要制止这种，直接输出而不是[使用] cfreturn和追加cfabort即：
＆LT; cfcontent复位=YES/＆GT;＆LT; CFOUTPUT＆GT; #Trim（EN code（qryExample））＃＆LT; / CFOUTPUT＆GT;＆LT; cfabort /＆GT ;
My cfc is working because I can invoke it and get the json string of data, however, my jquery ajax call gives me an error "SyntaxError: JSON.parse: unexpected end of data".
ajax call:
$.ajax({
type: "get",
url: "/surveymanagement/admin/client.cfc",
dataType: "json",
data: {
method: "GetClientsByName",
name: "im"
},
success: function(data){
$("#here").html(data);
},
error: function(a,b,c){
$("#here").html(a.responseText + c);
}
});
When I invoke the component in another cfm page my cfc returns the string: [{"client_id":58,"client_name":"Aimbridge"},{"client_id":104,"client_name":"IMF"}] .
What might my problem be?
also, if I go directly to my cfc in the browser http://domain.com/filepath/client.cfc?method=GetClientsByName&name=imI don't get errors but it is just a white screen. I don't know what I am supposed to be seeing when I go directly to it.
for the sake of all info here is client.cfc:
<cfcomponent>
<cfsetting showdebugoutput="no">
<cffunction name="GetClientsByName"
access="remote"
returntype="string"
hint="get clients from search term">
<cfargument name="name" type="string" required="yes">
<cfset var util = createObject("component", "/surveymanagement/JSONUtil")>
<cfset var results = arrayNew(1)>
<cfset var elem = "">
<cfquery name="GetClientsByName" datasource="#application.dsn#">
SELECT client_id, client_name
FROM Clients
WHERE client_name LIKE <cfqueryparam cfsqltype="cf_sql_varchar" value="%#arguments.name#%">
</cfquery>
<cfloop query="GetClientsByName">
<cfset elem = structNew()>
<cfset elem["client_id"] = GetClientsByName.client_id>
<cfset elem["client_name"] = GetClientsByName.client_name>
<cfset arrayAppend(results, elem)>
</cfloop>
<cfcontent type="application/json" reset="true">
<cfreturn util.serializeJSON(results)>
</cffunction>
</cfcomponent>
Note: I'm using coldfusion7 so I cannot use returnformat='json'
application.cfc maybe something went awry here:
<cfcomponent
displayname="Application"
output="true"
hint="Handle the Application">
<cfset THIS.Name = "SurveyManagement" />
<cfset THIS.ApplicationTimeout = CreateTimeSpan(0,1,0,0) />
<cfset THIS.SessionManagement = true />
<cfset THIS.SetClientCookies = false />
<cffunction
name="OnApplicationStart"
access="public"
returntype="boolean"
output="false"
hint="Fires when the application is first created.">
<cfreturn true />
</cffunction>
<cffunction
name="OnSessionStart"
access="public"
returntype="void"
output="false"
hint="Fires when the session is first created.">
<cfreturn />
</cffunction>
<cffunction
name="OnRequestStart"
access="public"
returntype="boolean"
output="false"
hint="Fires at first part of page processing.">
<cfargument
name="TargetPage"
type="string"
required="true"
/>
<cfparam name="variables.this_query_string" default="">
<cfif cgi.QUERY_STRING neq "">
<cfset variables.this_query_string="?#cgi.QUERY_STRING#">
</cfif>
<cfparam name="server.ThisServer" default="www4.mydomain.com">
<cfif cgi.SERVER_PORT neq "443" or cgi.HTTP_HOST eq "www.mydomain.com">
<cflocation url="https://#server.ThisServer##cgi.PATH_INFO##variables.this_query_string#" addtoken="no">
</cfif>
<cfparam name="form.fieldnames" default="">
<cfloop list="#form.fieldnames#" index="i">
<cfif Evaluate(i) neq "">
<cfset form_value_temp=Evaluate(i)>
<cfset form_value_temp=replace(form_value_temp,"<", "<", "all")>
<cfset form_value_temp=replace(form_value_temp,">", ">", "all")>
<cfset "form.#i#"=form_value_temp>
</cfif>
</cfloop>
<cfreturn true />
</cffunction>
<cffunction
name="OnRequest"
access="public"
returntype="void"
output="true"
hint="Fires after pre page processing is complete.">
<cfargument
name="TargetPage"
type="string"
required="true"
/>
<cfset application.dsn="SurveyManagement">
<cfset application.title="Survey Management Site">
<cfset application.directory="surveymanagement">
<cfset application.cfc_data="surveymanagement">
<cfinclude template="#ARGUMENTS.TargetPage#" />
<cfreturn />
</cffunction>
<cffunction
name="OnRequestEnd"
access="public"
returntype="void"
output="true"
hint="Fires after the page processing is complete.">
<cfreturn />
</cffunction>
<cffunction
name="OnSessionEnd"
access="public"
returntype="void"
output="false"
hint="Fires when the session is terminated.">
<cfargument
name="SessionScope"
type="struct"
required="true"
/>
<cfargument
name="ApplicationScope"
type="struct"
required="false"
default="#StructNew()#"
/>
<cfreturn />
</cffunction>
<cffunction
name="OnApplicationEnd"
access="public"
returntype="void"
output="false"
hint="Fires when the application is terminated.">
<cfargument
name="ApplicationScope"
type="struct"
required="false"
default="#StructNew()#"
/>
<cfreturn />
</cffunction>
<cffunction
name="OnError"
access="public"
returntype="void"
output="true"
hint="Fires when an exception occures that is not caught by a try/catch.">
<cfargument name="Except" required=true/>
<p>AN UNEXPECTED ERROR HAS OCCURRED</p>
<p>Please consult your suggested technical support contact for assistance.</p>
<cfif findnocase("ip address here",cgi.REMOTE_ADDR) or findnocase("ip address here",cgi.REMOTE_ADDR)>
<cfdump var="#Except.RootCause#">
</cfif>
<cfreturn />
</cffunction>
I'm not sure if this will help but I'm working on working with data for angularjs and was looking at this post: Talks a bit on using CFC's w/out the need to create the JSON yourself (also demonstrates how CFMX handled json calls).
In ColdFusion MX a cfc called directly returned wddx. To stop this, output directly instead of [using] cfreturn and append cfabort ie:
<cfcontent reset="yes" /><cfoutput>#Trim(encode(qryExample))#</cfoutput><cfabort />
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