Java 使用 Mockito @Spy 注释时不调用 @PostConstruct
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@PostConstruct not called when using Mockito @Spy annotation
提问by javalearner
I am using Spring, TestNG and Mockito frameworks. I am writing a unit test for a class Athat has a dependency on class B. Class Bhas a method annotated with @PostConstruct.
我正在使用 Spring、TestNG 和 Mockito 框架。我正在为A类编写单元测试，该类依赖于B类。B类有一个用@PostConstruct.
While writing Unit test case using TestNG for class A, I am annotating an instance of class Bwith Mockito @Spyin the test class. I can see the instance of Bbeing created properly by Mockito. But why@PostConstructcode is not calledwhen Mockito is processing @Spyannotation?
在使用 TestNG 为A类编写单元测试用例时，我在测试类中使用 Mockito注释B类的实例@Spy。我可以看到Mockito 正确创建了B的实例。但是为什么在 Mockito 处理注解的时候不调用@PostConstruct代码呢？@Spy
So, what I have done is I moved the code inside @PostConstructto the constructor.
所以，我所做的是将代码@PostConstruct移到了构造函数中。
Is there any way to make Mockito execute any 'Post-processing' method while processing @Spyannotation?
有没有办法让 Mockito 在处理@Spy注释时执行任何“后处理”方法？
Appreciate any help on this.
感谢您对此的任何帮助。
采纳答案by JB Nizet
No, there isn't. PostConstruct is a Spring concept. But nothing forbids you to call it in your setup method:
不，没有。PostConstruct 是一个 Spring 概念。但是没有什么禁止你在你的设置方法中调用它：
@Before
public void prepare() {
MockitoAnnotations.initMocks(this);
this.b.postConstruct();
}
回答by leon cio
I solved this problem by replacing the method labeled with @PostConstruct by the constructor of the class labeled @Inject. Both solutions do the same and are supported by Mockito. It is necessary to put dependence:
我通过用标记为@Inject 的类的构造函数替换标记为@PostConstruct 的方法解决了这个问题。两种解决方案都做同样的事情，并得到 Mockito 的支持。有必要把依赖：
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
Before:
前：
@Service
public class AddressMapper extends CommonMapper {
@PostConstruct
private void init() {
....
After:
后：
@Service
public class AddressMapper extends CommonMapper {
@Inject
public AddressMapper() {
...
