我想知道为什么使用这个 WebMVCTest 的 Pageable object 的 getBoardList 测试不起作用

Question

有源代码

@WebMvcTest(BoardController.class)
public class BoardControllerTest {
    
    private MockMvc mvc;

    @Autowired
    private ObjectMapper objectMapper;

    @Autowired
    BoardController boardController;

    @MockBean
    BoardServiceImpl boardService;

    @BeforeEach
    public void setUp() {
        mvc = MockMvcBuilders
                .standaloneSetup(boardController)
                .build();
    }

    @Test
    public void getBoardList() throws Exception {
        PageRequest pageable = PageRequest.of(0,10, Sort.Direction.DESC, "id");

        List<BoardDto> results = new ArrayList<>();
        results.add(new BoardDto(1, "Shown Title1", null, "Mingyeom", 2, LocalDateTime.now(), null));
        results.add(new BoardDto(2, "Shown Title2", null, "Mingyeom", 2, LocalDateTime.now(), null));
        results.add(new BoardDto(3, "Shown Title3", null, "Mingyeom", 2, LocalDateTime.now(), null));

        Page<BoardDto> expectedBoardDto = new PageImpl<>(results,pageable, results.size());

        given(boardService.getBoardList(anyInt(), any())).willReturn(expectedBoardDto);

        // when
        String responseBody = mvc.perform(get("/board/all")
                        .contentType(MediaType.APPLICATION_JSON)
                        .param("menuId", "2")
                        .param("page", "2")
                        .param("size", "1")
                        .param("sort", "ASC")
                        .param("properties", "id"))
                .andExpect(status().isOk())
                .andDo(print())
                .andReturn()
                .getResponse().getContentAsString();

        // then
        assertThat(responseBody).isEqualTo(objectMapper.writeValueAsString(expectedBoardDto));
    }
}

@RestController
@RequestMapping("/board")
@RequiredArgsConstructor
public class BoardController {
  
    private final BoardService boardService;

    @GetMapping("/all")
    public Page<BoardDto> getBoardList(
            Pageable pageable,
            @RequestParam Integer menuId
    ) {
        return boardService.getBoardList(menuId, pageable);
    }
}

基于下面的BoardController，我尝试测试了接收可分页的object并接收menuId作为参数检索帖子整篇文章的方法。

在 BoardControllerTest 中创建一个 PageRequest object 后，我创建了一个 BoardDto 列表，并使用 PageImpl 方法创建了一个页面 object。

（对不起，缺少帖子。）

如果你用同样的方法向web上的地址栏发送请求，会正常投递，但如果只是测试一下，就会报错。 以下是错误信息的内容。

请求处理失败； 嵌套异常是 java.lang.IllegalStateException: No primary or single unique constructor found for interface org.springframework.data.domain.Pageable org.springframework.web.util.NestedServletException: 请求处理失败； nested exception is java.lang.IllegalStateException: No primary or single unique constructor found for interface org.springframework.data.domain.Pageable at app//org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) at app//org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) at app//javax.servlet.http.HttpServlet.service(HttpServlet.java:655) at app//org.springframework.web .servlet.FrameworkServlet.service(FrameworkServlet.java:883) at app//org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:72) at app//javax.servlet.Z80791B3AE7002CB88C246876D9FAA8F8 Z.HttpServlet.service(HttpServlet.java:764) at app//org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167) at app//org.springframework.mock.web.MockFilterChain. doFilter(MockFilterChain.java:134) at app//org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:199) at app//com.inhabas.api.controller.BoardControllerTest.getBoardList(BoardControllerTest. java:125) at java.base@11.0.12/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base@11.0.12/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62 ) at java.base@11.0.12/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base@11.0.12/java.lang.reflect.Method.invoke(Method.java:566 ) at app//org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725) at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149) at应用程序//org.Z587FEFE304B8E3505DE89 580432C5DDCZ.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140) at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84) at app//org.junit. jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115) at app//org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105) at app //org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.Z93F725A0 7423FE1C889F448B33D21F46Z:64) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java: 37) at app//org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104) at app//org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:214) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(Throwable Collector.java:73) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:210) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor. java:135) at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:66) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6 (NodeTestTask.java:151) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform.engine.support.hierarchical .NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at app//org.junit.platform. engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org .junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java. base@11.0.12/java.util.Z57A97A39435CFDFED96E03F2A3BC2 7CEZ.forEach(ArrayList.java:1541) at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at app//org.junit.platform.engine.support. hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app//org.junit.platform .engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at app// org.junit.platfo rm.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at app/ /org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base@11.0.12/java.util.ArrayList.forEach(ArrayList.java:1541)

请帮忙，， ：（

Answer 1

我解决了！

 @BeforeEach
    public void setUp() {
        mvc = MockMvcBuilders
                .standaloneSetup(boardController)
                .setCustomArgumentResolvers(new PageableHandlerMethodArgumentResolver())
                .setViewResolvers(new ViewResolver() {
                    @Override
                    public View resolveViewName(String viewName, Locale locale) throws Exception {
                        return new MappingJackson2JsonView();
                    }
                })
                .build();
    }

我在 BoardControllerTest 之上编写了这段代码，它编译成功。