将带有元数据(`multipart/form Data`)的文件上载到ColdFusion 11 REST服务
如何在ColdFusion 11 REST服务中访问通过文件上传(使用将带有元数据(`multipart/form Data`)的文件上载到ColdFusion 11 REST服务,rest,file-upload,coldfusion,coldfusion-11,Rest,File Upload,Coldfusion,Coldfusion 11,如何在ColdFusion 11 REST服务中访问通过文件上传(使用enctype=“multipart/form data”)发送的元数据(表单数据) 模拟一个简单的服务: component restpath = "test" rest = true { remote void function upload( required numeric id restargsource = "Path", required any docum
enctype=“multipart/form data”
)发送的元数据(表单数据)
模拟一个简单的服务:
component
restpath = "test"
rest = true
{
remote void function upload(
required numeric id restargsource = "Path",
required any document restargsource = "Form",
required string title restargsource = "Form"
)
httpmethod = "POST"
restpath = "{id}/"
produces = "application/json"
{
if ( FileExists( document ) )
restSetResponse({
"status" = 201,
"content" = {
"id" = id,
"title" = title,
"size" = GetFileInfo( document ).size
}
});
else
restSetResponse({
"status" = 400,
"content" = "Nothing uploaded"
});
}
}
和一个简单的HTML文件来测试它:
提交
然后服务返回500
HTTP状态代码和JSON响应:
{"Message":"The DOCUMENT parameter to the upload function is required but was not passed in."}
检查HTTP请求头显示这两个字段都已传入,但服务未接收它们
注释掉HTML表单中的enctype
属性(因此它使用默认编码application/x-www-form-urlencoded
),然后服务返回400
HTTP状态代码和响应Nothing Upload
如何解决这一问题?要彻底混淆请求数据,请填充
表单
变量,但是,即使函数参数状态为restargsource=“FORM”
,当enctype
不是application/x-www-form-urlencoded
时,该值不会作为参数传递给REST服务
Adobe的文章证实了这一点:
表单参数:
在许多情况下,您必须处理在REST服务的表单中输入的数据。您可以使用此数据在数据库中创建新条目(POST
)或更新现有记录(PUT
)。如果使用表单字段,请将restargsource
设置为form
。这将提取请求中存在的数据,并使其可用于进一步处理。此外,在以表单字段形式发送数据时,必须将内容类型标题设置为application/x-www-form-urlencoded
但是,可以通过将使用restargsource=“form”
的参数更改为form
变量中明确限定范围的参数来解决此问题
因此,用户可以这样修改服务:
component
restpath = "test"
rest = true
{
remote void function upload(
required numeric id restargsource = "Path"
)
httpmethod = "POST"
restpath = "{id}/"
produces = "application/json"
{
param name="form.document" type="string";
param name="form.title" type="string";
if ( FileExists( form.document ) )
restSetResponse({
"status" = 201,
"content" = {
"id" = id,
"title" = form.title,
"size" = GetFileInfo( form.document ).size
}
});
else
restSetResponse({
"status" = 400,
"content" = "Nothing uploaded"
});
}
}