Question

当我从JUnit测试用例向Rest服务发送请求时，我收到400 Bad Request。 PFB我的代码。错误日志即将结束。请帮助我解决问题。当我通过直接在URL中传递参数来调用服务器时，我没有收到任何错误：restTemplate.getForObject（BASE_URL +“/ remote？serviceName = simpleService＆amp; source = WEB”，HelloWorld.class）。但是如何使用地图，这就是问题的来源。

我的控制器：

@Controller
@RequestMapping("/remote")

public class RESTController implements IController{

@RequestMapping(method = RequestMethod.GET, headers = "Accept=application/xml,  application/json")
public @ResponseBody HelloWorld getMessage(@RequestParam("serviceName") String serviceName, @RequestParam("source") String source) throws ApplicationException{
    System.out.println("got the request:");
    serviceLocator serviceLocator = new serviceLocator();
    HelloWorld helloWorld = new HelloWorld();
    helloWorld.setMessage(serviceLocator.getMessage(serviceName));
    return helloWorld;
}

我的配置：

<context:annotation-config />

<context:component-scan base-package="com" />

<mvc:annotation-driven />

<bean
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="messageConverters">
        <list>
            <bean class="org.springframework.http.converter.FormHttpMessageConverter" />
            <bean
                class="org.springframework.http.converter.StringHttpMessageConverter" />
            <bean id="jsonViewResolver"
                class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
                <property name="objectMapper" ref="JacksonObjectMapper" />
                <property name="supportedMediaTypes">
                    <list>
                        <bean class="org.springframework.http.MediaType">
                            <constructor-arg value="application" />
                            <constructor-arg value="json" />
                            <constructor-arg
                                value="#{T(java.nio.charset.Charset).forName('UTF-8')}" />
                        </bean>
                    </list>
                </property>
            </bean>

        </list>
    </property>
</bean>
<bean id="JacksonObjectMapper" class="org.codehaus.jackson.map.ObjectMapper" />

我的控制器测试：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("applicationContextTest.xml")
public class RESTControllerTest {

private static final String BASE_URL = "http://localhost:8080/SimpleServiceWeb/rest";

@Autowired
private RestTemplate restTemplate;

@Test
public void getMessage() throws Exception { 

    String expected = "Hello Spring!";
    HttpHeaders httpHeaders = new HttpHeaders();
    httpHeaders.setAccept(Collections
            .singletonList(MediaType.APPLICATION_XML));     

    MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
    map.add("serviceName", "simpleService");
    map.add("source", "WEB");

    ObjectMapper mapper = new ObjectMapper();
    ObjectWriter normalWriter = mapper.writer();
    String jsonString = normalWriter.writeValueAsString(map);;
    HttpEntity<Object> requestEntity = new HttpEntity<Object>(httpHeaders);     

    HelloWorld helloWorld = restTemplate.exchange(BASE_URL + "/remote",
             HttpMethod.GET, requestEntity, HelloWorld.class, map) .getBody();

    assertThat(helloWorld.getMessage(), is(expected));
}

}

我的测试配置：

.simple“/＆gt;

<mvc:annotation-driven />

<bean id="springServiceLocator" class="com.servicelocator.simple.SpringServiceLocator">
    <property name="simpleService" ref="simpleService" />
</bean>

<bean id="simpleService" class="com.service.simple.SimpleService" />

<bean id="restTemplate" class="org.springframework.web.client.RestTemplate">

    <property name="messageConverters">
        <list>
            <bean class="org.springframework.http.converter.FormHttpMessageConverter" />
            <bean
                class="org.springframework.http.converter.StringHttpMessageConverter" />
            <bean id="jsonViewResolver"
                class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
                <property name="objectMapper" ref="JacksonObjectMapper" />
                <property name="supportedMediaTypes">
                    <list>
                        <bean class="org.springframework.http.MediaType">
                            <constructor-arg value="application" />
                            <constructor-arg value="json" />
                            <constructor-arg
                                value="#{T(java.nio.charset.Charset).forName('UTF-8')}" />
                        </bean>
                    </list>
                </property>
            </bean>

        </list>
    </property>
</bean>
<bean id="JacksonObjectMapper" class="org.codehaus.jackson.map.ObjectMapper" />

<bean id="httpClient" class="org.apache.commons.httpclient.HttpClient">
    <constructor-arg ref="httpClientParams" />
</bean>

<bean id="httpClientParams" class="org.apache.commons.httpclient.params.HttpClientParams">

    <property name="connectionManagerClass"
        value="org.apache.commons.httpclient.MultiThreadedHttpConnectionManager" />
</bean>

<bean id="httpClientFactory"
    class="org.springframework.http.client.CommonsClientHttpRequestFactory">
    <constructor-arg ref="httpClient" />
</bean>

错误：

org.springframework.web.client.HttpClientErrorException：400 Bad Request at org.springframework.web.client.DefaultResponseErrorHandler.handleError（DefaultResponseErrorHandler.java:75）在org.springframework.web.client.RestTemplate.handleResponseError（RestTemplate.java:486）在org.springframework.web.client.RestTemplate.doExecute（RestTemplate.java:443）在org.springframework.web.client.RestTemplate.execute（RestTemplate.java:409）在org.springframework.web.client.RestTemplate.exchange（RestTemplate.java:384） at test.com.servicefacade.simple.RESTControllerTest.getMessage（RESTControllerTest.java:85） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method） at sun.reflect.NativeMethodAccessorImpl.invoke（Unknown Source） at sun.reflect.DelegatingMethodAccessorImpl.invoke（Unknown Source） at java.lang.reflect.Method.invoke（Unknown Source）在org.junit.runners.model.FrameworkMethod $ 1.runReflectiveCall（FrameworkMethod.java:45）在org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:15）在org.junit.runners.model.FrameworkMethod.invokeExplosively（FrameworkMethod.java:42）在org.junit.internal.runners.statements.InvokeMethod.evaluate（InvokeMethod.java:20）在org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate（RunBeforeTestMethodCallbacks.java:74）在org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate（RunAfterTestMethodCallbacks.java:82）在org.springframework.test.context.junit4.statements.SpringRepeat.evaluate（SpringRepeat.java:72）在org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:231）在org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:47）在org.junit.runners.ParentRunner $ 3.run（ParentRunner.java:231）在org.junit.runners.ParentRunner $ 1.schedule（ParentRunner.java:60）在org.junit.runners.ParentRunner.runChildren（ParentRunner.java:229）在org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:50）在org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:222）在org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate（RunBeforeTestClassCallbacks.java:61）在org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate（RunAfterTestClassCallbacks.java:70）在org.junit.runners.ParentRunner.run（ParentRunner.java:300）在org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run（SpringJUnit4ClassRunner.java:174）在org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:50）在org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:38）在org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:467）在org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:683）在org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:390）在org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:197）

Answer 1

您的控制器接受application / xml和application / json类型。
在messageConverters中只配置了JSON转换器，我没有看到任何XML转换器。
在测试用例中，您将媒体类型设置为application / xml。

可能是由于缺少xml转换器，Spring无法正确封送您的请求，因此给出400？虽然如控制器中所述支持媒体类型，但这就是为什么你没有得到415。

RestTemplate GET请求抛出400 Bad Request

1 个答案: