Gateway 스프링 시큐리티 적용 문서 추가

user-service/src/main/java/com/roy/springcloud/userservice/UserServiceApplication.java

@@ -3,6 +3,8 @@ package com.roy.springcloud.userservice;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 
 @EnableEurekaClient
 @SpringBootApplication
@@ -12,4 +14,9 @@ public class UserServiceApplication {
         SpringApplication.run(UserServiceApplication.class, args);
     }
 
+    @Bean
+    public BCryptPasswordEncoder bCryptPasswordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+
 }