Table of Contents
反射调用private方法实践(php、java),
您可能感兴趣的文章:
Home php教程 php手册 反射调用private方法实践(php、java),

反射调用private方法实践(php、java),

Jun 13, 2016 am 08:48 AM
java php private reflection

反射调用private方法实践(php、java),

单测中有个普遍性的问题,被侧类中的private方法无法直接调用。小拽在处理过程中通过反射改变方法权限,进行单测,分享一下,直接上代码。

简单被测试类

生成一个简单的被测试类,只有个private方法。

复制代码 代码如下:

单测代码

复制代码 代码如下:
objMyClass = new MyClass();}/** * 利用反射,对类中的private 和 protect 方法进行单元测试 * * @param $strMethodName string :反射函数名 * @return ReflectionMethod obj  :回调对象 */protected static function getPrivateMethod($strMethodName) {$objReflectClass = new ReflectionClass(self::CLASS_NAME);$method = $objReflectClass->getMethod($strMethodName);$method->setAccessible(true);return $method;}/** * @brief :测试private函数的调用 */public function testPrivateFunc(){$testCase = 'just a test string';// 反射该类$testFunc = self::getPrivateMethod('privateFunc');$res = $testFunc->invokeArgs($this->objMyClass, array($testCase));$this->assertEquals($testCase, $res);$this->expectOutputRegex('/success/i');// 捕获没有参数异常测试try { $testFunc->invokeArgs($this->transfer2Pscase, array());} catch (Exception $expected) {$this->assertNotNull($expected);return true;}$this->fail(self::FAIL);}}

运行结果

cuihuan:test cuixiaohuan$ phpunit MyClassTest.php PHPUnit 4.8.6 by Sebastian Bergmann and contributors.Time: 103 ms, Memory: 11.75MbOK (1 test, 3 assertions)

关键代码分析

封装了一个,被测类方法的反射调用;同时,返回方法之前处理方法的接入权限为true,便可以访问private的函数方法。

复制代码 代码如下:
/** * 利用反射,对类中的private 和 protect 方法进行单元测试 * * @param $strMethodName string :反射函数名 * @return ReflectionMethod obj  :回调对象 */protected static function getPrivateMethod($strMethodName) {$objReflectClass = new ReflectionClass(self::CLASS_NAME);$method = $objReflectClass->getMethod($strMethodName);$method->setAccessible(true);return $method;}

下面给大家分享java中利用反射调用另一类的private方法

我们知道,Java应用程序不能访问持久化类的private方法,但Hibernate没有这个限制,它能够访问各种级别的方法,如private, default, protected, public. Hibernate是如何实现该功能的呢?答案是利用JAVA的反射机制,如下: 

<span style="font-size:14px;">import java.lang.reflect.InvocationTargetException; 
import java.lang.reflect.Method; 
public class ReflectDemo { 
 public static void main(String[] args) throws Exception { 
  Method method = PackageClazz.class.getDeclaredMethod("privilegedMethod", new Class[]{String.class,String.class});  
  method.setAccessible(true); 
  method.invoke(new PackageClazz(), "452345234","q31234132"); 
 } 
} 
class PackageClazz { 
 private void privilegedMethod(String invokerName,String adb) { 
  System.out.println("---"+invokerName+"----"+adb); 
 } 
}</span> 

Copy after login

输出结果为:---452345234----q31234132

您可能感兴趣的文章:

  • php类中private属性继承问题分析
  • PHP类与对象中的private访问控制的疑问
  • php class中public,private,protected的区别以及实例分析
  • 浅析php面向对象public private protected 访问修饰符
  • Java中的private修饰符失效了?
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1662
14
PHP Tutorial
1261
29
C# Tutorial
1234
24
PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP vs. Python: Understanding the Differences PHP vs. Python: Understanding the Differences Apr 11, 2025 am 12:15 AM

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

Explain the match expression (PHP 8 ) and how it differs from switch. Explain the match expression (PHP 8 ) and how it differs from switch. Apr 06, 2025 am 12:03 AM

In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.

PHP vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP vs. Python: Core Features and Functionality PHP vs. Python: Core Features and Functionality Apr 13, 2025 am 12:16 AM

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

See all articles