add backend

backend/src/main/java/com/yoyuzh/config/OpenApiConfig.java

@@ -0,0 +1,26 @@
+package com.yoyuzh.config;
+
+import io.swagger.v3.oas.models.Components;
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.info.Info;
+import io.swagger.v3.oas.models.security.SecurityRequirement;
+import io.swagger.v3.oas.models.security.SecurityScheme;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class OpenApiConfig {
+
+    @Bean
+    public OpenAPI openAPI() {
+        return new OpenAPI()
+                .info(new Info().title("yoyuzh.xyz Backend API").version("1.0.0").description("Personal portal backend"))
+                .addSecurityItem(new SecurityRequirement().addList("bearerAuth"))
+                .components(new Components().addSecuritySchemes("bearerAuth",
+                        new SecurityScheme()
+                                .name("Authorization")
+                                .type(SecurityScheme.Type.HTTP)
+                                .scheme("bearer")
+                                .bearerFormat("JWT")));
+    }
+}