When using the file upload control, MVC must add the enctype = "multipart/form-data" attribute,
Html. BeginForm ("action", "controller", FormMethod. Post, new {enctype = "multipart/form-data "})
{
}
Enctype = "multipart/form-data: sets the
Smartupload is used to obtain form data during File Upload (recommended), and smartupload uploads images
Form forms for file upload must meet two conditions:method="post" enctype="multipart/form-data"
In the form, enctype = "multipart/form-data"
The vc client uses the http post abc.txt file to send the post file to the php server. the abc.txt file received by the server is empty. Is it a php: // input problem. Thank you!
Vc client:
Content-Disposition: form-data; name = "upload";
Spring-related jar dependencies were introduced through Maven to build the Spring MVC project.1, in order to use Commons FileUpload components, need to add dependencies in the Pom.xml;Properties> spring.version>3.0.7.RELEASEspring.version>
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h3>form表单上传文件h3>formaction="/upload_file/" method="post" enctype="multipart/form-data"> p>
Objective
Uploading files should be a very common and essential operation, and there are many uploaded controls available on the Web. A problem was encountered today: the input control file could not be asynchronously uploaded without a refresh. It
HTML form for file upload:
Note: The enctype= "Multipart/form-data" must be written, otherwise the $_files array is empty and the value is not available.
The $_files array reads as follows:$_files[the original name of the '
Recently started contacting Springmvc, a page of a previous project was copied from the project, and it was found that the form page data could not be bound to the model when the value passed in was all null, and later found that the form form used
Partial source code of upload. jsp:
Select the photo to be uploaded:
Next, declare this attribute in actionform and set the getter and setter methods. The source code is as follows:
Public class uploadform extends actionform {
Protected formfile
Function of the enctype attribute of form labels, formenctype
Enctype is the encoding type used by the browser when data is sent back to the server. The encoding types include:
1. application/x-www-form-urlencoded
This is the default encoding type
From: http://www.cnblogs.com/zhishan/articles/2441893.htmlgetand postdifferentiate and use
Many people cannot tell the difference between get and post, and when to use get? When to use post?Both get and post Methods send data to the server, but
Haha, continue. This course is not much to talk about. We often talk about refreshing new uploads.
The simple registration we made in the last lesson is really simple. I have not changed many features, but please remember
I will certainly
$_post: An array of variables passed by the HTTP POST method. is an automatic global variable.
$GLOBALS [' Http_raw_post_data ']: Always produce a variable containing the original POST data. This variable is only generated when it encounters data
This article is mainly to share with you how to solve the php form $_files, in the file crosses $_files receive the value of the situation there are many kinds, summed up the common mistakes there are several, but also people in the use of easy to
The first thing to know is that the Enctype property manages the MIME encoding of the form. A total of three values are optional:1, application/x-www-form-urlencoded2, Multipart/form-data3, Text/plainWhere application/x-www-form-urlencoded is the
VC Client Use HTTP POST abc.txt file to PHP server side, server side received Abc.txt file is empty, is not php://input problem, please expert advice. Thank you!
VC Client:
Content-disposition:form-data; Name= "Upload"; Filename= "Abc.txt"
Content-
PHP input stream php: // inputWhen using xml-rpc, the server obtains client data mainly through the php input stream input instead of the $ _ POST array. So here we will mainly discuss php input stream php: // inputFor a php: // input introduction,
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