我正在尝试编写测试以确保我的 Controller 加载我的 View 。

这样做时，我得到一个“循环 View 路径异常”。这是由于 thymeleaf-view-resolver 不存在。

一个简单的 Controller 方法如下所示:

@Cacheable("Customers")
@RequestMapping(value="/customer",  method = RequestMethod.GET)
public String customer(Model model) {
    model.addAttribute("customer", "customer");
    return "customer";
}

我的 View 位于 src/main/resources/templates(由 spring-boot 自动配置)，在此示例中， View 名为 customer.html。如果我将 View 名称更改为不同于@requestMapping 的值，那么我就避免了错误 ofc。

我如何为我的测试提供 Spring-boot-autoconfig 创建的 ThymeleafViewResolver？

这个问题表明我必须这样做，但没有说明如何……:How to avoid the "Circular view path" exception with Spring MVC test

CustomerControllerTest.java

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
@WebAppConfiguration
public class CustomerControllerTest {

    @Autowired
    CustomerController customerController;

    private MockMvc mockMvc;

    @Before
    public void setup(){
        // Process mock annotations
        MockitoAnnotations.initMocks(this);

        // Setup Spring test in stand-alone mode
        this.mockMvc = MockMvcBuilders.standaloneSetup(customerController).build();
    }

    @Test
    public void testLoadCustomerPage() throws Exception{
        this.mockMvc.perform(get("/customer")).andExpect(status().isOk());  
    }
}

异常

javax.servlet.ServletException: Circular view path [customer]: would dispatch back to the current handler URL [/customer] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
    at org.springframework.web.servlet.view.InternalResourceView.prepareForRendering(InternalResourceView.java:263)
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:186)
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:266)
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1225)
    at org.springframework.test.web.servlet.TestDispatcherServlet.render(TestDispatcherServlet.java:119)
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1012)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:931)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:822)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
    at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:64)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:170)
    at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:137)
    at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:141)
    at com.***.***.salesweb.web.controller.CustomerControllerTest.testLoadCustomerPage(CustomerControllerTest.java:51)

提前感谢所有回复!

最佳答案

在这里发表精彩评论后，我将 Controller 更改为以下内容，现在可以使用了:)

CustomerControllerTest.java

import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
@WebAppConfiguration
public class CustomerControllerTest {

    @Autowired
    CustomerController customerController;

    private MockMvc mockMvc;

    @Autowired
    WebApplicationContext wac;

    @Before
    public void setup(){
    
        // Process mock annotations
        MockitoAnnotations.initMocks(this);

        // Setup Spring test in webapp-mode (same config as spring-boot)
        this.mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
    }

    @Test
    public void testLoadCustomerPage() throws Exception{
        this.mockMvc.perform(get("/customer")).andExpect(status().isOk());  
    }
}

关于java - 用 thymeleaf 测试 spring-boot web-app，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21376572/