在Play框架中上传图片

我最初试图实现一个用于上传文件的Javascript函数，但文件永远不会上传，我无法弄清楚如何使用该代码。在Play框架中上传图片

这是“查看文件”：

<div id="file-uploader"> 

    <script> 
     function createUploader(){ 
      var uploader = new qq.FileUploader({ 
       element: document.getElementById('file-uploader'), 
       action: '/upload', 
       debug: true 
      }); 
     } 
     // in your app create uploader as soon as the DOM is ready 
     // don't wait for the window to load 
     window.onload = createUploader; 
    </script>  

</div>

，这是控制器：

package controllers; 

import java.io.File; 
import java.io.FileOutputStream; 
import java.io.InputStream; 
import models.Photo; 
import models.User; 
import play.*; 
import play.mvc.*; 

import org.apache.commons.io.IOUtils; 

public class Uploader extends Controller { 

    public static Long id; 

    public static void index(Long id) { 
     System.out.println("this is id inside the tester"+id); 
     new Uploader(id); 
     render(); 
    } 

    public Uploader(Long id) { 
     this.id = id; 
    } 

    public static void upload(String qqfile) { 

     if (request.isNew) { 

      FileOutputStream moveTo = null; 

      Logger.info("Name of the file %s", qqfile); 
      // Another way I used to grab the name of the file 
      String filename = request.headers.get("x-file-name").value(); 

      Logger.info("Absolute on where to send %s", Play.getFile("").getAbsolutePath() + File.separator + "uploads" + File.separator); 
      try { 

       String filelocation = File.separator + "uploads" + File.separator + filename; 

       InputStream data = request.body; 

       moveTo = new FileOutputStream(new File(Play.getFile("").getAbsolutePath()) 
         + File.separator + "uploads" + File.separator + filename); 

       IOUtils.copy(data, moveTo); 

       Users.show(id); 

      } catch (Exception ex) { 

       // catch file exception 
       // catch IO Exception later on 
       renderJSON("{success: false}"); 
       System.out.println("Exception is:" + ex); 
      } 

     } 

    } 
}

我想自定义（如更多参数传递到上传功能），但不能找到一种方法来做到这一点...

你能告诉我我做错了什么，如果可能你能指导我通过表单上传文件吗？

来源

2012-05-21 Bj bhatta

我觉得这是一个很好的问题，但我会建议您更改其演示文稿。 1）请添加您尝试过的链接，并举例说明失败的例子2）重新提出问题听起来要求不高。 –

http://www.playframework.org/documentation/1.0/5things

点5：

HTML表单：

<form action="@{Article.uploadPhoto()}" method="POST" enctype="multipart/form-data"> 
    <input type="text" name="title" /> 
    <input type="file" id="photo" name="photo" /> 
    <input type="submit" value="Send it..." /> 
</form>

和Java代码：

public static void uploadPhoto(String title, File photo) { 
    ... 
}

来源

2012-05-21 15:11:51

在Play框架中上传图片

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