我有以下结构由Spring MVC API与单一终点getAnnotation：测试Spring MVC的API：没有合格的豆发现
@SpringBootApplication
public class Application {
@Bean
public javax.validation.Validator localValidatorFactoryBean() {
return new LocalValidatorFactoryBean();
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
@Service
public class MyAnalyzerImpl implements MyAnalyzer
{
@Autowired
public MyAnalyzerImpl() {}
@Override
public Annotations getAnnotation(MyRequest request)
{
// ...
}
}
接口
public interface MyAnalyzer {
Annotations getAnnotation(MyRequest request);
}
控制器
@RestController
@RequestMapping("/thisapi/{id}")
public class MyController {
@Autowired
@Qualifier("MyAnalysis")
MyAnalyzer myAnalyzer;
@RequestMapping(value = "/getAnnotation", method = RequestMethod.GET)
public Annotations getAnnotation(@PathVariable String docId,
@RequestParam(value = "document", defaultValue = "{'id':'1','title':'bla-bla'}") String text) {
MysRequest myRequest = new MyRequest(MyRequest.TYPE_ANNOTATION, text);
return myAnalyzer.getAnnotation(myRequest);
}
}
要测试API，我首先创建src/test/java/MyAnalyzerImplTest.java，并能成功地执行它：
@RunWith(SpringJUnit4ClassRunner.class)
public class MyAnalyzerImplTest {
private MyAnalyzerImpl myAnalyzer;
private String sampleText;
@Test
public void testEndpoint() throws Exception {
MyRequest request = new MyRequest( MyRequest.TYPE_ANNOTATION,
"1",
sampleText
);
Annotations results = myAnalyzer.getAnnotation(request);
Assert.assertTrue("This " + results.getPayload().getWords().size() + ") " +
"should be greater than 0", results.getPayload().getWords().size() > 0);
}
@Before
public void setUp() throws Exception {
myAnalyzer = new MyAnalyzerImpl();
File f = new File("src/test/resources/texsts/text.json");
if (f.exists()){
InputStream is = new FileInputStream("src/test/resources/texts/text.json");
samplePublication = IOUtils.toString(is);
}
Thread.sleep(1000);
}
}
现在我想运行Application.java到该地址http://localhost:8080推出API。我得到以下错误：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myController': Unsatisfied dependency expressed through field 'myAnalyzer': No qualifying bean of type [org.api.thistool.MyAnalyzer] found for dependency [org.api.thistool.MyAnalyzer]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=MyAnalysis)}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.api.thistool.MyAnalyzer] found for dependency [org.api.thistool.MyAnalyzer]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=MyAnalysis)}
以防万一我也提供RAML文件。
#%RAML 0.8
title: MY API
version: v1
baseUri: http://localhost:8080
resourceTypes:
- annotate-type:
description: Bla-bla
get:
description: bla-bla
queryParameters:
text:
description: json of a document
type: string
required: true
default: "{'id':'1','title':'bla-bla'}"
responses:
200:
body:
application/json:
example: |
{
"words": "['aaa', 'bbb']"
}
/thisapi:
/{id}/getAnnotation:
type:
annotate-type:
uriParameters:
id:
description: document id
type: string
春天不能自动装配依赖于“MyAnalyzer”，因为它无法找到ID为“MyAnalysis”的bean。如果上下文中只有一个该类型的bean，则可以删除@Qualifier（“MyAnalysis”）。如果有型MyAnalysis的多个豆加适量@Qualifier为MyAnalyzerImpl – jp86
@ jp86：你的意思是我应该使用'@Autowired MyAnalyzer myAnalyzer;'，而不是'@Autowired @Qualifier （ “MyAnalysis”） MyAnalyzer myAnalyzer;' ？ – Klue
是的，它应该有所帮助。我将尝试解释：您的控制器需要一个类型为MyAnalyzer的_single_ bean，因此您在该依赖项上使用'@ Autowired'。这将指示spring在上下文中查找该类型的bean并自动注入它。当你还声明'@ Qualifier'时，它会将扫描限制为具有该ID的bean，在这种情况下为“MyAnalysis”。当应用程序启动'MyAnalyzerImpl'将（默认），获得豆ID“myAnalyzerImpl”没有进一步的指令，因此你看到的“不满意依赖性表达......”正在自动装配依赖时出错。 – jp86