如何调用包中qlready的输入文件

发布于 2024-11-09 04:57:10 字数 496 浏览 0 评论 0原文

在我的 Hadoop MapReduce 应用程序中，我有一个输入文件。我希望当我执行应用程序的 jar 时，将自动调用输入文件。为此，我编写了一个类来指定输入、输出和文件本身，但是从我调用文件的地方，我想指定文件路径。为此，我使用了这段代码：

 QueriesTest.class.getResourceAsStream("/src/main/resources/test") 
 but it is not working     (cannot read the input file from the generated jar)

所以我使用了这个

URL url = this.getClass().getResource("/src/main/resources/test") here I am getting the problem of URL. So please help me out. I am using Hadoop 0.21.

原文

In my Hadoop Map Reduce application I have one input file.I want that when I execute the jar of my application, then the input file will automatically be called.To do this I code one class to specify the input,output and file itself but from where I am calling the file, there I want to specify the file path. To do that I have used this code:

 QueriesTest.class.getResourceAsStream("/src/main/resources/test") 
 but it is not working     (cannot read the input file from the generated jar)

so I have used this one

URL url = this.getClass().getResource("/src/main/resources/test") here I am getting the problem of URL. So please help me out. I am using Hadoop 0.21.

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

夏有森光若流苏 2024-11-16 04:57:10

我不确定您想通过资源加载告诉我们什么，但添加输入文件的常用方法是：

Configuration conf = new Configuration();
Job job = new Job(conf);

Path in = new Path("YOUR_PATH_IN_HDFS");
FileInputFormat.addInputPath(job, in);

job.setInputFormatClass(TextInputFormat.class); // could be a sequencefile also
// set the other stuff
job.waitForCompletion(true);

然后确保您的文件驻留在 HDFS 中。

I'm not sure what you want to tell us with your resource loading, but the usual way to add an input file is this:

Configuration conf = new Configuration();
Job job = new Job(conf);

Path in = new Path("YOUR_PATH_IN_HDFS");
FileInputFormat.addInputPath(job, in);

job.setInputFormatClass(TextInputFormat.class); // could be a sequencefile also
// set the other stuff
job.waitForCompletion(true);

Make sure your file resides in HDFS then.

回复收藏 0 原文

~没有更多了~