Extjs文件上传使用json服务？ [英] Extjs File upload using json service?

问题描述

我使用json服务（.net RIA服务）从Extjs将数据推送到服务器。目前我有要求将文件上传到服务器。我看到一些例子，使用表单提交到php文件。

I am using json service(.net RIA service) to push data to server from Extjs. Currently I have a requirement to upload document to server. I saw some examples using form submit to php files.

这可能通过json服务吗？或者是否需要创建一些服务器逻辑，我可以接受表单提交？

Is this possible through json service? or Is it necessery to create some server logic where i can accept form submits?

是否可以从客户端读取一些二进制数据，并将json数据推送到服务器？

Is it possible to read some binary data from client side and push as json data to server?

推荐答案

在Extjs中，使用正常的Ajax技术不会执行文件上传，即不使用XMLHttpRequests执行文件上传。相反，临时创建包含所有字段的隐藏元素，并将其目标集提交，以引用被插入到文档中的动态生成的隐藏，但在收集返回数据后被删除。

In Extjs, File uploads are not performed using normal 'Ajax' techniques, that is they are not performed using XMLHttpRequests. Instead a hidden element containing all the fields is created temporarily and submitted with its target set to refer to a dynamically generated, hidden which is inserted into the document but removed after the return data has been gathered.

请注意，文件上传数据包将以内容类型multipart / form和某些服务器技术发送

Be aware that file upload packets are sent with the content type multipart/form and some server technologies

检查： http://docs.sencha.com/ext-js/ 4-1 /＃！/ api / Ext.form.Basic-method-hasUpload

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