【发布时间】：2020-08-04 17:14:51
【问题描述】：
亲爱的大家，
我是 Spring-Boot 的新手。我已经创建了这个服务 restful 服务，它会产生以下错误。我了解 NativeWebRequest 是一个接口，需要由实现此接口的 bean 实现，但我不知道这是否是正确的方法？
不幸的是，我已经花了很多天试图了解问题的根源。任何帮助/建议将不胜感激。
感谢您的关注。
伊万杰洛斯
应用程序
...
package server;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Configuration;
import server.service.controllers.CSVReadAndParseToBean;
@SpringBootApplication
@Configuration
public class Application {
public static void InitializeReferenceData() throws Exception {
CSVReadAndParseToBean csv2bean= new CSVReadAndParseToBean();
csv2bean.InitializeRefEicCode();
}
public static void main(String[] args) throws Exception {
InitializeReferenceData();
SpringApplication.run(Application.class, args);
}
}
...
2) 接口...
@Validated
@Api(value = "execute_rules", description = "Execute the rule validation on the received message")
public interface ExecuteRulesApi {
default Optional<NativeWebRequest> getRequest() {
return Optional.empty();
}
@ApiOperation(value = "", nickname = "executeRulesPost", notes = "", response = ResultMsg.class, tags={ })
@ApiResponses(value = {
@ApiResponse(code = 201, message = "Return an object with the validation status ", response = ResultMsg.class) })
@RequestMapping(value = "/execute_rules",
produces = { "application/json" },
consumes = { "application/json" },
method = RequestMethod.POST)
default ResponseEntity<ResultMsg> executeRulesPost(@ApiParam(value = "" ,required=true ) @Valid @RequestBody RequestMsg requestMsg) throws JsonProcessingException {
System.out.println (" **** Call to - ExecuteRulesApiInterface");
String result = ApiUtil.processMessageBody(requestMsg);
getRequest().ifPresent(request -> {
for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
ApiUtil.setMsgResponse(request, "application/json", result);
break;
}
}
System.out.println (" **** Call to Exit ExecuteRulesApiInterface");
}); ***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in server.service.api.ExecuteRulesApiController required a bean of type 'org.springframework.web.context.request.NativeWebRequest'
that could not be found.
Action:
Consider defining a bean of type 'org.springframework.web.context.request.NativeWebRequest' in your configuration.
Process finished with exit code 1 ***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in server.service.api.ExecuteRulesApiController required a bean of type 'org.springframework.web.context.request.NativeWebRequest'
that could not be found.
Action:
Consider defining a bean of type 'org.springframework.web.context.request.NativeWebRequest' in your configuration.
Process finished with exit code 1
return new ResponseEntity<>(HttpStatus.CREATED);
}
...
3) 代码实现...
@Controller
@RequestMapping("${openapi.demoNewTPRulesEngine.base-path:/api-rules}")
public class ExecuteRulesApiController implements ExecuteRulesApi {
private @Autowired
final NativeWebRequest request;
@org.springframework.beans.factory.annotation.Autowired
public ExecuteRulesApiController(NativeWebRequest request) {
this.request = request;
System.out.println (" **** Call to Constructor of ExecuteRulesApiController *****");
}
@Override
public Optional<NativeWebRequest> getRequest( ) {
System.out.println (" **** Call to Override getRequest methodes.*****");
System.out.println (" **** Received Payload is:" +this.request.toString());
return Optional.ofNullable(request);
}
}
...
服务定义。...
4) Beans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean class="org.springframework.web.context.request.NativeWebRequest" abstract="true"/>
<bean/>
</beans>
...
5) 最终错误...
***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in server.service.api.ExecuteRulesApiController required a bean of type 'org.springframework.web.context.request.NativeWebRequest'
that could not be found.
Action:
Consider defining a bean of type 'org.springframework.web.context.request.NativeWebRequest' in your configuration.
Process finished with exit code 1
...
【问题讨论】：
标签： java spring-boot