Java.util.PropertyPermission.getActions() Java.util.PropertyPermission.equals() Java.util.PropertyPermission.hashCode() 描述 在java.util.PropertyPermission.getActions()方法返回字符串表示本动作的列表(e.g. "read,write")。 声明 以下是java.util.PropertyPermission.getActions()方法的声明 public String getActions() 参数 NA 返回值 此方法返回操作的字符串表示形式(例如“read,write”)。 异常 NA 实例 以下示例显示了java.util.PropertyPermission.getActions()方法的用法。 package com.tutorialspoint; import java.util.PropertyPermission; public class PropertyPermissionDemo { private static PropertyPermission permission; public static void main(String[] args) { // Build property permissions permission = new PropertyPermission("java.home.*", "read,write"); // Check permissions checkFilePermissions("java.home.usr"); } private static void checkFilePermissions(String path) { // Check permission given name if(path.matches(permission.getName())) { // Get actions list String actions = permission.getActions(); // Match read write actions if(actions.contains("read")) System.out.println("Has permissions on "+path+" for read"); if(actions.contains("write")) System.out.println("Has permissions on "+path+" for write"); } } } 让我们编译并运行上面的程序,这将产生以下结果 Has permissions on java.home.usr for read Has permissions on java.home.usr for write Java.util.PropertyPermission.equals() Java.util.PropertyPermission.hashCode()