快速问答
我有一个查找目录中所有文件的循环,我想要做的是在其中添加一行代码,将这些结果写入txt文件,我最好如何做到这一点
当前代码:
public String FilesInFolder() {
// Will list all files in the directory, want to create a feature on the page that can display this to the user
String path = NewDestination;
System.out.println("Starting searching files in directory"); // making sure it is called
String files;
File folder = new File(path);
File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
files = listOfFiles[i].getName();
System.out.println(files);
}
}
return "";
}
答案 0 :(得分:1)
public String FilesInFolder() {
// Will list all files in the directory, want to create a feature on the page that can display this to the user
String path = NewDestination;
System.out.println("Starting searching files in directory"); // making sure it is called
String files;
File folder = new File(path);
File[] listOfFiles = folder.listFiles();
File file = new File("output.txt");
// if file doesnt exists, then create it
if (!file.exists()) {
file.createNewFile();
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
files = listOfFiles[i].getName();
System.out.println(files);
bw.write(files);
}
}
bw.close();
return "";
}
答案 1 :(得分:1)
您可以同时使用FileWriter和StringWriter。
public String FilesInFolder() throws IOException {
FileWriter fw = new FileWriter("file.txt");
StringWriter sw = new StringWriter();
// Will list all files in the directory, want to create a feature on the page that can display this to the user
String path = NewDestination;
System.out.println("Starting searching files in directory"); // making sure it is called
String files;
File folder = new File(path);
File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
files = listOfFiles[i].getName();
sw.write(files);
System.out.println(files);
}
}
fw.write(sw.toString());
fw.close();
return "";
}