swagger yaml 적용하기

Author: tae2089

spring/spring-swagger-yaml파일적용시키기.md

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+## 관련 링크
+
+[swagger yaml import 하는 방법 링크](https://sunghs.tistory.com/149)
+[Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException에러 발생 시](https://goyunji.tistory.com/137)
+
+```java
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.swagger.web.SwaggerResource;
+import springfox.documentation.swagger.web.SwaggerResourcesProvider;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Primary
+@Configuration
+public class SwaggerSpecConfig implements SwaggerResourcesProvider {
+
+    @Override
+    public List<SwaggerResource> get() {
+        PathMatchingResourcePatternResolver patternResolver = new PathMatchingResourcePatternResolver();
+        try {
+            Resource[] resources = patternResolver.getResources("/static/swagger/swagger.yaml");
+            if (resources.length == 0) {
+                return Collections.emptyList();
+            }
+            return Arrays.stream(resources).map(resource -> {
+                SwaggerResource swaggerResource = new SwaggerResource();
+                swaggerResource.setSwaggerVersion(DocumentationType.SWAGGER_2.getVersion());
+                swaggerResource.setName(resource.getFilename());
+                swaggerResource.setLocation("/swagger/"+resource.getFilename());
+                return swaggerResource;
+            }).collect(Collectors.toList());
+        } catch (IOException e) {
+            e.printStackTrace();
+            return Collections.emptyList();
+        }
+    }
+}
+
+
+```
+
+spring:
+mvc:
+pathmatch:
+matching-strategy: ant_path_matcher
+
+```
+위 코드를 application.yml에 적용시켜줍니다.
+```