Spring MockMvc - 请求参数列表答案

【问题标题】：Spring MockMvc - request parameter listSpring MockMvc - 请求参数列表
【发布时间】：2017-07-11 20:34:49
【问题描述】：

我正在尝试使用 MockMvc 测试几个控制器端点，但遇到了一些麻烦（请客气，我是新手……）。使用字符串作为参数的简单端点工作正常，但是使用字符串列表的稍微复杂的端点不满意并引发异常；谁能指出我做错了什么？

@RestController
@RequestMapping("/bleh")
public class Controller
{
    @Autowired
    private DataService dataService

    @RequestMapping(value = "/simple", method = RequestMethod.GET)
    public String simple(String name) 
    { 
        return dataService.getSomeData(name) 
    }

    @RequestMapping(value = "/complicated", method = RequestMethod.GET)
    public String complex(List<String> names)
    { 
        return dataService.getSomeOtherData(names) 
    }
}

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class HealthControllerTests extends Specification
{
    def dataServiceMock;
    def testController;
    def mockMvc;


    def setup(){
        dataServiceMock = Mock(DataService)
        dataServiceMock.getSomeData >> "blaah"
        testController = new Controller(dataService: dataServiceMock)
        mockMvc = MockMvcBuilders.standaloneSetup(testController).build();
    }

    def "working test"
        when:
        def response = MockMvc.perform(get("/simple").param("name", "tim"))
                .andReturn()
                .getResponse();

        then:
        response.status == OK.value();
        response.contentAsString == "blaah"

    def "unhappy test"
        when:
        def response = MockMvc.perform(get("/complicated").param("names", new ArrayList<>()))
            .andReturn()
            .getResponse();

        then:
        response.status == OK.value()


}

抛出这个：

No signature of method: org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder.param() is applicable for argument types: (java.lang.String, java.util.ArrayList) values: [names, []]. Possible solutions: param(java.lang.String, [Ljava.lang.String;), params(org.springframework.util.MultiValueMap), wait(), grep(), any(), putAt(java.lang.String, java.lang.Object)])

【问题讨论】：

标签： java spring spring-mvc

【解决方案1】：

ArrayList 不受支持，但您可以执行以下操作

def "complicated test"
    when:
    def response = MockMvc.perform(get("/complicated").param("names", "bob", "margret"))
        .andReturn()
        .getResponse();

    then:
    response.status == OK.value()

def "another complicated test"
        when:
        def response = MockMvc.perform(get("/complicated").param("names", new String[]{"bob", "margret"}))
            .andReturn()
            .getResponse();

        then:
        response.status == OK.value()

【讨论】：

【解决方案2】：

使用方法params() 而不是param() 它支持多值映射，因此您可以拥有一个键的值列表。

例如

    List<String> values = Arrays.asList("foo", "bar", "baz");
    MultiValueMap<String, String> params = new LinkedMultiValueMap<>()
    params.addAll("myKey", values);

    MockMvc.perform(get("/complicated")
            .params(params)
            .andReturn()
            .getResponse();

【讨论】：