在JSF primefaces中上传文件 [英] Upload file in JSF primefaces

问题描述

我试图用一个简单的表单上传一个文件，但是它只是一直返回到同一个页面。为了找到错误或者其他的错误，我只想在输出中写上我上传文件的名字。一旦我能得到文件名，我想我可以处理如何处理整个文件。所以这是我的代码：

 < h：form enctype =multipart / form-data> 
 < p：fileUpload value =＃{jokoBerriaController.file}mode =simple/> 
 < / h：表格> 
  

控制器：

  import javax.faces.bean.ManagedBean; 
 import org.primefaces.model.UploadedFile; 
 
 @ManagedBean 
 public class jokoBerriaController {
 
 public static UploadedFile file; 
 
 public UploadedFile getFile（）{
 return file; 
} 
 
 public void setFile（UploadedFile file）{
 this.file = file; 
 
 $ b $ public void upload（）{
 System.out.println（file+ file.getFileName（））; 
 
 
 
 
 $ b $ p 
 
 
 
 
 
 
 
 
 
 $ b 
 < filter> 
< filter-name> PrimeFaces FileUpload Filter< / filter-name> 
< filter-class> org.primefaces.webapp.filter.FileUploadFilter< / filter-class> 
< / filter> 
< filter-mapping> 
< filter-name> PrimeFaces FileUpload Filter< / filter-name> 
< servlet-name> Faces Servlet< / servlet-name> 
< / filter-mapping> 
  
在我的web.xml文件中，但是我没有添加commons-io和commons-文件上传库。我读过，我必须把我的pom.xml文件中的下一个代码，但我找不到该文件。  
 
 
 <依赖关系> 
< groupId> commons-fileupload< / groupId> 
< artifactId> commons-fileupload< / artifactId> 
< version> 1.2.2< / version> 
< /依赖> 
<依赖> 
< groupId> commons-io< / groupId> 
< artifactId> commons-io< / artifactId> 
< version> 1.4< / version> 
< /依赖> 
  
感谢您的帮助。 
 
 
 PD ：对不起我的英文。 
 
解决方案
 这篇文章真的很有帮助。
 
 
 
你需要注意所有的细节。所有依赖关系必须包含在WEB-INF / lib中，并且必须正确声明web.xml中的servlet过滤器。
 
 
 
我遇到过类似的问题，按照该帖子的提示。 
I'm trying to upload a file with a simple form but it just returns to the same page all the time. To find the mistake or whatever is wrong, I just want to write in the output the name of the file I upload. Once I can get the file name I guess I can handle how to handle the entire file. So this is my code:
<h:form enctype="multipart/form-data">    
            <h:outputText value="Argazkia: "/>
            <p:fileUpload value="#{jokoBerriaController.file}" mode="simple"/>
            <p:commandButton value="Bidali" ajax="false" actionListener="#{jokoBerriaController.upload()}"/>
</h:form>
The controller:
import javax.faces.bean.ManagedBean;
import org.primefaces.model.UploadedFile;

@ManagedBean
public class jokoBerriaController {  

    public static UploadedFile file; 

    public UploadedFile getFile() {  
        return file;  
    }  

    public void setFile(UploadedFile file) { 
        this.file = file;  
    }  

    public void upload() {          
        System.out.println("file " + file.getFileName());
    }  
}
I had added 
<filter>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>PrimeFaces FileUpload Filter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
at my web.xml file, but i've haven't added commons-io and commons-fileupload libraries. I've read that i have to put the next code in my pom.xml file, but I can't find that file. 
<dependency> 
<groupId>commons-fileupload</groupId> 
<artifactId>commons-fileupload</artifactId> 
<version>1.2.2</version> 
</dependency> 
<dependency> 
<groupId>commons-io</groupId> 
<artifactId>commons-io</artifactId> 
<version>1.4</version> 
</dependency>
Thanks for your help.

PD: Sorry about my English. 
解决方案
This post was really helpful.

You need to pay attention to all the details. All dependencies must be included in WEB-INF/lib, and the servlet filter in web.xml must be declared correctly.

I had similar issues and I got it working by following the tips on that post.

                        
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