SecurityManager類的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()方法用于返回封裝或綁定當前執行環境的對象，并且我們不會重寫此方法，因此它返回“ AccessControlContext”對象。

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

  需要getSecurityContext()方法來確定不受信任的方法是否有資格獨立執行。

• 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()方法是一個非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

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

  getSecurityContext()方法在返回執行環境的對象時不會引發異常。

Syntax:

句法：

public Object getSecurityContext();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

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.

此方法的返回類型為Object ，它返回一個對象，該對象封裝了當前正在執行的環境的足夠信息，以進行某些安全性驗證。

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 managerSystem.setProperty("java.security.policy", "file:/C:/java.policy");// Instantiating a SecurityManager objectSecurityManager smgr = new SecurityManager();// By using setSecurityManager() method is to set the// security managerSystem.setSecurityManager(smgr);// By using getSecurityContext() method is to return the// object of security contextObject ob = smgr.getSecurityContext();// Display obSystem.out.println("Ob = " + ob);} }

Output

輸出量

Ob = [email?protected]

翻譯自: https://www.includehelp.com/java/securitymanager-getsecuritycontext-method-with-example.aspx

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