１、引入测试相关依赖(一般默认会有)

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
</dependency>

2、ＭockMvc模拟mvc请求进行测试

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class MockMvcDemo {
    
    @Autowired
    private MockMvc mockMvc;
    
    @Test
    public void testMvc() throws Exception{
        MvcResult andReturn = mockMvc.perform(MockMvcRequestBuilders.get("/test"))
        .andExpect(MockMvcResultMatchers.status().isOk()).andReturn();
         
    }

}