java.util.PropertyPermission.getActions() 方法返回當前操作的列表中的字符串表示形式(如“read,write”)。

聲明

以下是java.util.PropertyPermission.getActions()方法的聲明

public String getActions()

參數

NA

返回值

此方法返回操作的字符串表示形式(如“read,write”)。

異常

NA

例子

下麵的例子顯示java.util.PropertyPermission.getActions()方法的用法。

package com.yiibai;

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");
      }
   }
}

讓我們來編譯和運行上麵的程序，這將產生以下結果：

Has permissions on java.home.usr for read
Has permissions on java.home.usr for write