SecurityManager类的getSecurityContext()方法 (SecurityManager Class getSecurityContext() method)

• getSecurityContext() method is available in java.lang package.

  getSecurityContext()方法在java.lang包中可用。

• getSecurityContext() method is used to return an object that encapsulates or binds the current execution environment and we don't override this method so it returns an object of "AccessControlContext".

  getSecurityContext()方法用于返回封装或绑定当前执行环境的对象，并且我们不会重写此方法，因此它返回“ AccessControlContext”对象。

• getSecurityContext() method is required to determine whether the untrusted method is eligible to execute on its own or not.

  需要getSecurityContext()方法来确定不受信任的方法是否有资格独立执行。

• getSecurityContext() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  getSecurityContext()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• getSecurityContext() method does not throw an exception at the time returning an object of executing the environment.

  getSecurityContext()方法在返回执行环境的对象时不会引发异常。

Syntax:

句法：

    public Object getSecurityContext();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of this method is Object, it returns an object that encapsulates enough information of an environment executing currently to operate some security validations.

此方法的返回类型为Object ，它返回一个对象，该对象封装了当前正在执行的环境的足够信息，以进行某些安全性验证。

Example:

例：

// Java program to demonstrate the example
// of Object getSecurityContext() method of
// SecurityManager
import java.security.*;
public class GetSecurityContext {public static void main(String[] args) {// By using setProperty() method is to set the policy property
// with security manager
System.setProperty("java.security.policy", "file:/C:/java.policy");
// Instantiating a SecurityManager object
SecurityManager smgr = new SecurityManager();
// By using setSecurityManager() method is to set the
// security manager
System.setSecurityManager(smgr);
// By using getSecurityContext() method is to return the
// object of security context
Object ob = smgr.getSecurityContext();
// Display ob
System.out.println("Ob = " + ob);
}
}

Output

输出量

Ob = [email protected]

翻译自: https://www.includehelp.com/java/securitymanager-getsecuritycontext-method-with-example.aspx