Don't forget to use `@RunWith(SpringRunner.class)` for dependency injection in test classes.

Mar 31, 2024#异常 #JavaWeb136

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AI-generated summary

The test class is missing dependency injection for ZsxqApi, causing it to be null when running the test. Adding @RunWith(SpringRunner.class) allows for dependency injection and other functionalities during testing.

The test class below looks fine at first glance, but after running it, it keeps showing that ZsxqApi has not been injected and is null

@SpringBootTest
public class AppTest {
    @Value("${ChatBot-api.groupId}")
    private String groupId;

    @Value("${ChatBot-api.cookie}")
    private String cookie;

    @Autowired
    private ZsxqApi zsxqApi;

    @Test
    public void Test() throws IOException {
        zsxqApi.getWithoutCommentsTopics(groupId, cookie);
    }
}

Solution#

Add @RunWith(SpringRunner.class): Indicates that during testing, dependency injection and other functionalities can be performed

@RunWith(SpringRunner.class)
@SpringBootTest
public class AppTest {
  ……
}