本文介绍了如何从Apache的UploadedFile的类java.io.File的获得？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我如何转换Apache的上传的文件 UploadedFile的类到的java.io.File 类？
How do I convert an uploaded file from apache's UploadedFile class to a java.io.File class?
推荐答案
综观文件（ UploadedFile的 和的），这两个类，这里有一个解决方案。
Looking at the documentation (UploadedFile and File) for both classes, here's one solution.
既然你可以访问的的InputStream 的 UploadedFile的，您可以在上传文件的数据读取和其写入到一个临时位置，或您的应用程序可以管理其他位置。
Since you can access the InputStream of the UploadedFile, you can read in the data of the uploaded file and write it to a temporary location or another location that your application can manage.
// assume that you have the UploadedFile object named uploadedFile
InputStreamReader reader = new InputStreamReader(uploadedFile.getInputStream());
int partition = 1024;
int length = 0;
int position = 0;
char[] buffer = new char[partition];
FileWriter fstream = new FileWriter("out.tmp");
do{
length = reader.read(buffer, position, partition)
fstream.write(buffer, position, length);
}while(length > 0);
File file = new File("out.tmp");
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