Node.js fs.symlink()函数
原文:https://www.geeksforgeeks.org/node-js-fs-symlink-function/
fs.symlink()方法用于创建到指定路径的 symlink。这将创建一个使path指向target的链接。相对目标是相对于链接的父目录。
语法:
fs.symlink( target, path, type, callback )
参数:这个方法接受上面提到的和下面描述的四个参数:
- Target: It is a string, buffer or URL that indicates the path to which symbolic links must be created.
- Path: It is a string, buffer or web address that represents the path to create symbolic links.
- Type: is a string representing the type of symbolic link to be created. It can be specified with "file", "dir" or "junction". If the target does not exist, File will be used.
- Callback: is a function that will be called when the method is executed.
- err: If the operation fails, this error will be thrown.
下面的例子说明了 Node.js 中的 fs.symlink()方法:
示例 1: 本示例创建一个指向文件的符号链接。
// Node.js program to demonstrate the
// fs.symlink() method
// Import the filesystem module
const fs = require('fs');
console.log("Contents of the text file:");
console.log(fs.readFileSync('example_file.txt', 'utf8'));
fs.symlink(__dirname + "\\example_file.txt",
"symlinkToFile", 'file', (err) => {
if (err)
console.log(err);
else {
console.log("\nSymlink created\n");
console.log("Contents of the symlink created:");
console.log(fs.readFileSync('symlinkToFile', 'utf8'));
}
})
输出:
Contents of the text file:
Hello Geeks
Symlink created
Contents of the symlink created:
Hello Geeks
示例 2: 本示例创建一个指向目录的符号链接。
// Node.js program to demonstrate the
// fs.symlink() method
// Import the filesystem module
const fs = require('fs');
fs.symlink(__dirname + "\\example_directory",
"symlinkToDir", 'dir', (err) => {
if (err)
console.log(err);
else {
console.log("Symlink created");
console.log("Symlink is a directory:",
fs.statSync("symlinkToDir").isDirectory()
);
}
});
输出:
Symlink created
Symlink is a directory: true
参考:T2【https://nodejs . org/API/fs . html # fs _ fs _ symlink _ target _ path _ type _ callback
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