Play.application()的替代方法是什么 [英] What is the alternative for Play.application()
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问题描述
我是Play框架的新手.我想读取conf文件夹中的文件.所以我用
Play.application().classloader().getResources("Data.json").nextElement().getFile()
但是我知道那场比赛了.现在比赛已经过时了.我可以使用什么来读取文件.
我阅读了此文章,几乎听不懂它在说什么.
I am new to Play framework. I wanted to read a file which is in the conf folder. So I used Play.application().classloader().getResources("Data.json").nextElement().getFile()
But I got to know that play.Play is deprecated now. What can I use to read the file.
I read this article and can hardly understand what it says.
推荐答案
只需将应用程序注入您需要的类中.假设它在控制器中:
Just inject the Application in the class where you need it. Supposing it is in a controller:
import play.Application;
import javax.inject.Inject;
import javax.inject.Provider;
class YourController extends Controller {
@Inject
Provider<Application> app;
public Result someMethod() {
// (...)
// File is placed in conf/Data.json
InputStrem is = app.get().classloader().getResourceAsStream("Data.json");
String json = new BufferedReader(new InputStreamReader(is))
.lines().collect(Collectors.joining("\n"));
return ok(json).as("application/json");
}
}
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