当ajax打开时，Primefaces命令按钮停止fileupload [英] Primefaces command buttons stopping fileupload when ajax is on

问题描述

 < p：commandButton action =＃{userBean .buttonToUploadText}value =Submiticon =ui-icon-arrowstop-1-n/> 
  

userBean.java

  public String buttonToUploadText（）{
 System.out.println（buttonToUploadText invoked）; //测试以确保它被称为
返回/upload/uploadText.xhtml; 
} 
  

这一切应该做的仅仅是把用户带到上传文本页面，做到这一点，但每当我有这个按钮fileupload什么也不做，但第二我编辑这个命令按钮，并使用正常的文件上传工作完美？我在做什么错误

编辑：

刚刚发现，当ajax是假的，它完美的作品，为什么如果你的PrimeFaces文件上传组件有一个这样的代码，但是这个问题是可以识别的模式= 简单。这将生成一个没有任何JS / Ajax支持的本地HTML < input type =file> 。这需要一个带有 ajax =false的命令按钮，完全如 showcase 。

如果您希望能够通过ajax上传文件并提交表单， code>模式= 高级。另请参阅展示。

另见：

• 如何使用PrimeFaces p：fileUpload？ Listener方法从不被调用或者UploadedFile为空

got a weird issue, i have a primefaces command button :

<p:commandButton action="#{userBean.buttonToUploadText}" value="Submit" icon ="ui-icon-arrowstop-1-n"/> 

userBean.java

public String buttonToUploadText() {
    System.out.println("buttonToUploadText invoked"); //testing to make sure it is called
    return "/upload/uploadText.xhtml";
}

all this should do is simply take the user to the upload text page, it does this but whenever i have this button the fileupload does nothing, but the second i edit this command button out and use a normal one the file upload works perfect ? what am i doing wrong

EDIT:

have just found out when ajax is false it works perfectly, why is this ?

解决方案

You didn't show all the code, but this problem is recognizable if your PrimeFaces file upload component has a mode="simple". This will generate a native HTML <input type="file"> without any JS/Ajax support. This requires a command button with ajax="false", exactly as shown in the showcase.

If you want to be able to upload files and submit the form by ajax, then use mode="advanced". See also the showcase.

See also:

• How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null

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