在文件夹中创建一个文本文件 [英] create a text file in a folder
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问题描述
我想在此处创建的文件夹中创建一个文本文件.
I want to create a text file into that folder that I am creating here.
File dir = new File("crawl_html");
dir.mkdir();
String hash = MD5Util.md5Hex(url1.toString());
System.out.println("hash:-" + hash);
File file = new File(""+dir+"\""+hash+".txt");
但是此代码不会在该文件夹中创建文本文件.相反,它将文本文件放置在该文件夹之外.
But this code doesn't create the text file into that folder..Instead it makes the text file outside that folder..
推荐答案
java.io.File的构造函数之一带有一个父目录.您可以改为:
One of java.io.File's constructors takes a parent directory. You can do this instead:
final File parentDir = new File("crawl_html");
parentDir.mkdir();
final String hash = "abc";
final String fileName = hash + ".txt";
final File file = new File(parentDir, fileName);
file.createNewFile(); // Creates file crawl_html/abc.txt
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