使用AJAX的文本内容和FileUpload [英] Text Content and FileUpload with AJAX

问题描述

我正在为我的公司编写一个客户端数据库系统。没有太多花哨的东西，但是它会做应有的事情。
现在所有基本的文本内容都已完成，我想在其中添加一些文件管理。

I am writting a client database system for my company. Not much fancy stuff, but it does what it should. Now that all the basic "text" stuff is done I want to add some filemanagement into it.

我有几种形式可以通过以下方式发送到后端

I have several forms which get send to the backend with ajax and then written into the db in the model.

其中某些表单计划上传文档文件。

Some of these forms are planned to have a document file upload.

是否可以使用AJAX处理正常值提交和文件提交？

Is there a way to handle normal value submits and a file submit with AJAX ?

让我给您一个FORM示例：

Let me give you a FORM example:

<form action="SOMEPATH/LOGIC_FILE.php" action="POST" enctype= multipart/form-data>
  <label for="name">
   <input type="text" id="name" name="name" />
  </label>
  <label for="somethingElse">
   <input type="text" id="somethingElse" name="somethingElse" />
  </label>
  <label for="fileUpload">
    <input type="file" />
  </label>
</form>

AJAX示例：

var name = $('#name').val();
var somethingElse = $('#somethingElse').val();

var dataArr = { 'name':name, 'somethingElse':somethingElse};
MYELEMENT.click(function(e){
e.preventEventDefault();
$.ajax({
            url: "PATH/logic/logic_update_client_allg.php",
            type: "POST",
            data: allgArray,
            success: function(dataArr){
                // works
            },
            error: function(){
                // doesnt work
            }
        });
}

那就是我处理输入值的方式

Thats how I handle my INPUT VALUE submit

我如何继续以这种形式上传文件

How can I proceed to also upload a file with this form

谢谢

推荐答案

对于Ajax上传，您需要使用 xmlHttpRequest 在 jQuery.ajax（）方法中已经可用，但是使用了 FormData 。

For ajax uploads you need to use xmlHttpRequest which is already available in the jQuery.ajax() method, but with use of FormData.

如果您不针对IE旧版本（例如7,8），则可以使用 FormData 。需要注意的一件事是，您必须设置 contentType，pr ocessData 到 false 。

If you are not targeting IE legacy versions, like 7,8 you can use FormData. One thing to be noticed that you have to set contentType, processData to false.

请参见以下示例：

var name = $('#name').val();
var somethingElse = $('#somethingElse').val();
var fd = new FormData();
var dataArr = {
  name: name,
  somethingElse: somethingElse,
  file : fd.append('file', $('#fileUpload').get(0).files[0]) // put the file here
};

MYELEMENT.click(function(e) {
  e.preventDefault();
  $.ajax({
    url: "PATH/logic/logic_update_client_allg.php",
    type: "POST",
    data: dataArr, //<----post here the files and other values
    processData: false,  // tell jQuery not to process the data
    contentType: false   // tell jQuery not to set contentType
    success: function(dataArr) {
      // works
    },
    error: function() {
      // doesnt work
    }
  });
});

这篇关于使用AJAX的文本内容和FileUpload的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！