String getActions()
描述 (Description)
java.util.PropertyPermission.getActions()方法以字符串表示形式返回当前动作的列表(例如“read,write”)。
声明 (Declaration)
以下是java.util.PropertyPermission.getActions()方法的声明
public String getActions()
参数 (Parameters)
NA
返回值 (Return Value)
此方法返回操作的字符串表示形式(例如“read,write”)。
异常 (Exception)
NA
例子 (Example)
以下示例显示了java.util.PropertyPermission.getActions()方法的用法。
package com.iowiki;
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