diff --git a/settings.gradle b/settings.gradle
index 2e1668f..2e78a17 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -2,4 +2,6 @@ rootProject.name = 'springcloud'
 include("discovery")
 include("gateway")
 include("test-server1")
-include("test-server2")
\ No newline at end of file
+include("test-server2")
+include("user-service")
+include("util")
\ No newline at end of file
diff --git a/user-service/build.gradle b/user-service/build.gradle
new file mode 100644
index 0000000..2504ecd
--- /dev/null
+++ b/user-service/build.gradle
@@ -0,0 +1,28 @@
+ext {
+    set('springCloudVersion', "2021.0.1")
+}
+
+dependencies {
+    implementation(project(":util"))
+
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
+
+    compileOnly 'org.projectlombok:lombok'
+
+    runtimeOnly 'com.h2database:h2:1.3.176'
+
+    developmentOnly 'org.springframework.boot:spring-boot-devtools'
+
+    annotationProcessor 'org.projectlombok:lombok'
+
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+dependencyManagement {
+    imports {
+        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+    }
+}
\ No newline at end of file
diff --git a/user-service/gradle/wrapper/gradle-wrapper.jar b/user-service/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..41d9927
Binary files /dev/null and b/user-service/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/user-service/gradle/wrapper/gradle-wrapper.properties b/user-service/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..00e33ed
--- /dev/null
+++ b/user-service/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/user-service/gradlew b/user-service/gradlew
new file mode 100755
index 0000000..1b6c787
--- /dev/null
+++ b/user-service/gradlew
@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/user-service/gradlew.bat b/user-service/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/user-service/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/user-service/settings.gradle b/user-service/settings.gradle
new file mode 100644
index 0000000..eb2f57d
--- /dev/null
+++ b/user-service/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'user-service'
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/UserServiceApplication.java b/user-service/src/main/java/com/roy/springcloud/userservice/UserServiceApplication.java
new file mode 100644
index 0000000..83a094e
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/UserServiceApplication.java
@@ -0,0 +1,15 @@
+package com.roy.springcloud.userservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+
+@EnableEurekaClient
+@SpringBootApplication
+public class UserServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(UserServiceApplication.class, args);
+    }
+
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/controller/UserController.java b/user-service/src/main/java/com/roy/springcloud/userservice/controller/UserController.java
new file mode 100644
index 0000000..66881b8
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/controller/UserController.java
@@ -0,0 +1,40 @@
+package com.roy.springcloud.userservice.controller;
+
+import com.roy.springcloud.userservice.dto.UserDto;
+import com.roy.springcloud.userservice.service.UserService;
+import com.roy.springcloud.userservice.vo.request.UserSaveRequest;
+import com.roy.springcloud.userservice.vo.response.UserSaveResponse;
+import lombok.RequiredArgsConstructor;
+import org.springframework.core.env.Environment;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import static com.roy.springcloud.util.mapper.MapperUtil.toObject;
+
+@RestController
+@RequestMapping("/")
+@RequiredArgsConstructor
+public class UserController {
+    private final Environment environment;
+    private final UserService userService;
+
+    @GetMapping("/health-check")
+    public String healthCheck() {
+        return "User service is working";
+    }
+
+    @GetMapping("/welcome")
+    public String welcome() {
+        return environment.getProperty("greeting.message");
+    }
+
+    @PostMapping("/users")
+    public ResponseEntity<UserSaveResponse> createUser(@RequestBody UserSaveRequest request) {
+        UserDto userDto = toObject(request, UserDto.class);
+        userService.createUser(userDto);
+        UserSaveResponse response = toObject(userDto, UserSaveResponse.class);
+        return ResponseEntity.status(HttpStatus.CREATED).body(response);
+    }
+
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/domain/User.java b/user-service/src/main/java/com/roy/springcloud/userservice/domain/User.java
new file mode 100644
index 0000000..af22a27
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/domain/User.java
@@ -0,0 +1,23 @@
+package com.roy.springcloud.userservice.domain;
+
+import lombok.Data;
+
+import javax.persistence.*;
+
+@Data
+@Entity
+@Table(name = "users")
+public class User {
+    @Id @GeneratedValue
+    private Long id;
+
+    @Column(nullable = false, length = 50, unique = true)
+    private String email;
+    @Column(nullable = false, length = 50)
+    private String name;
+    @Column(nullable = false, unique = true)
+    private String userId;
+    @Column(nullable = false, unique = true)
+    private String encryptedPassword;
+
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/dto/UserDto.java b/user-service/src/main/java/com/roy/springcloud/userservice/dto/UserDto.java
new file mode 100644
index 0000000..5a0ddcd
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/dto/UserDto.java
@@ -0,0 +1,15 @@
+package com.roy.springcloud.userservice.dto;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class UserDto {
+    private String email;
+    private String password;
+    private String name;
+    private String userId;
+    private LocalDateTime createdAt;
+    private String encryptedPassword;
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/repository/UserRepository.java b/user-service/src/main/java/com/roy/springcloud/userservice/repository/UserRepository.java
new file mode 100644
index 0000000..a9ae6f8
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/repository/UserRepository.java
@@ -0,0 +1,7 @@
+package com.roy.springcloud.userservice.repository;
+
+import com.roy.springcloud.userservice.domain.User;
+import org.springframework.data.repository.CrudRepository;
+
+public interface UserRepository extends CrudRepository<User, Long> {
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/service/UserService.java b/user-service/src/main/java/com/roy/springcloud/userservice/service/UserService.java
new file mode 100644
index 0000000..2c00b2d
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/service/UserService.java
@@ -0,0 +1,7 @@
+package com.roy.springcloud.userservice.service;
+
+import com.roy.springcloud.userservice.dto.UserDto;
+
+public interface UserService {
+    UserDto createUser(UserDto userDTO);
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/service/impl/UserServiceImpl.java b/user-service/src/main/java/com/roy/springcloud/userservice/service/impl/UserServiceImpl.java
new file mode 100644
index 0000000..6eb0c34
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/service/impl/UserServiceImpl.java
@@ -0,0 +1,26 @@
+package com.roy.springcloud.userservice.service.impl;
+
+import com.roy.springcloud.userservice.domain.User;
+import com.roy.springcloud.userservice.dto.UserDto;
+import com.roy.springcloud.userservice.repository.UserRepository;
+import com.roy.springcloud.userservice.service.UserService;
+import com.roy.springcloud.util.mapper.MapperUtil;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+public class UserServiceImpl implements UserService {
+    private final UserRepository userRepository;
+
+    @Override
+    public UserDto createUser(UserDto userDto) {
+        userDto.setUserId(UUID.randomUUID().toString());
+        User user = MapperUtil.toObject(userDto, User.class);
+        user.setEncryptedPassword("encrypted_password");
+        userRepository.save(user);
+        return userDto;
+    }
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/vo/request/UserSaveRequest.java b/user-service/src/main/java/com/roy/springcloud/userservice/vo/request/UserSaveRequest.java
new file mode 100644
index 0000000..8acd809
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/vo/request/UserSaveRequest.java
@@ -0,0 +1,24 @@
+package com.roy.springcloud.userservice.vo.request;
+
+import lombok.Data;
+
+import javax.validation.constraints.Email;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+
+@Data
+public class UserSaveRequest {
+    @Email
+    @NotNull(message = "Email cannot be blank")
+    @Size(min = 2, message = "Email not be less than two characters")
+    private String email;
+
+    @NotBlank(message = "Password cannot be blank")
+    @Size(min = 8, message = "Password must be equal or grater than 8 characters and less than 16 characters")
+    private String password;
+
+    @NotBlank(message = "Name cannot be blank")
+    @Size(min = 2, message = "Name not be less than two characters")
+    private String name;
+}
diff --git a/user-service/src/main/java/com/roy/springcloud/userservice/vo/response/UserSaveResponse.java b/user-service/src/main/java/com/roy/springcloud/userservice/vo/response/UserSaveResponse.java
new file mode 100644
index 0000000..32272fb
--- /dev/null
+++ b/user-service/src/main/java/com/roy/springcloud/userservice/vo/response/UserSaveResponse.java
@@ -0,0 +1,10 @@
+package com.roy.springcloud.userservice.vo.response;
+
+import lombok.Data;
+
+@Data
+public class UserSaveResponse {
+    private String email;
+    private String name;
+    private String userId;
+}
diff --git a/user-service/src/main/resources/application.yml b/user-service/src/main/resources/application.yml
new file mode 100644
index 0000000..bd64ab9
--- /dev/null
+++ b/user-service/src/main/resources/application.yml
@@ -0,0 +1,27 @@
+server:
+  port: 0
+
+spring:
+  application:
+    name: user-service
+  h2:
+    console:
+      enabled: true
+      settings:
+        web-allow-others: true
+      path: /h2-console
+  datasource:
+    driver-class-name: org.h2.Driver
+    url: jdbc:h2:mem:testdb
+
+eureka:
+  instance:
+    instanceId: ${spring.application.name}:${spring.application.instance_id:${random.value}}
+  client:
+    register-with-eureka: true
+    fetch-registry: true
+    service-url:
+      defaultZone: http://localhost:8761/eureka
+
+greeting:
+  message: Welcome to the Simple E-Commerce(User Service).
\ No newline at end of file
diff --git a/user-service/src/test/java/com/roy/springcloud/userservice/UserServiceImplApplicationTests.java b/user-service/src/test/java/com/roy/springcloud/userservice/UserServiceImplApplicationTests.java
new file mode 100644
index 0000000..0919f76
--- /dev/null
+++ b/user-service/src/test/java/com/roy/springcloud/userservice/UserServiceImplApplicationTests.java
@@ -0,0 +1,13 @@
+package com.roy.springcloud.userservice;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class UserServiceImplApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}
diff --git a/util/build.gradle b/util/build.gradle
new file mode 100644
index 0000000..fea0f1b
--- /dev/null
+++ b/util/build.gradle
@@ -0,0 +1,7 @@
+dependencies {
+    api 'org.springframework.boot:spring-boot-starter'
+
+    compileOnly 'org.projectlombok:lombok'
+
+    annotationProcessor 'org.projectlombok:lombok'
+}
diff --git a/util/gradle/wrapper/gradle-wrapper.jar b/util/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..41d9927
Binary files /dev/null and b/util/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/util/gradle/wrapper/gradle-wrapper.properties b/util/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..00e33ed
--- /dev/null
+++ b/util/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/util/gradlew b/util/gradlew
new file mode 100755
index 0000000..1b6c787
--- /dev/null
+++ b/util/gradlew
@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/util/gradlew.bat b/util/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/util/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/util/settings.gradle b/util/settings.gradle
new file mode 100644
index 0000000..28b50c8
--- /dev/null
+++ b/util/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'util'
diff --git a/util/src/main/java/com/roy/springcloud/util/mapper/MapperUtil.java b/util/src/main/java/com/roy/springcloud/util/mapper/MapperUtil.java
new file mode 100644
index 0000000..dc38a23
--- /dev/null
+++ b/util/src/main/java/com/roy/springcloud/util/mapper/MapperUtil.java
@@ -0,0 +1,24 @@
+package com.roy.springcloud.util.mapper;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.springframework.beans.BeanUtils;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class MapperUtil {
+    public static <T, S> T toObject(S source, Class<T> targetClass, String... ignoreProperties) {
+        T target = BeanUtils.instantiateClass(targetClass);
+        BeanUtils.copyProperties(source, target, ignoreProperties);
+        return target;
+    }
+
+    public static <T, S> List<T> toList(List<S> sources, Class<T> targetClass, String... ignoreProperties) {
+        return sources.stream()
+                .map(source -> toObject(source, targetClass, ignoreProperties))
+                .collect(Collectors.toList());
+    }
+}
+
diff --git a/util/src/main/resources/application.properties b/util/src/main/resources/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/util/src/main/resources/application.properties
@@ -0,0 +1 @@
+
diff --git a/util/src/test/java/com/roy/springcloud/util/UtilApplicationTests.java b/util/src/test/java/com/roy/springcloud/util/UtilApplicationTests.java
new file mode 100644
index 0000000..9977178
--- /dev/null
+++ b/util/src/test/java/com/roy/springcloud/util/UtilApplicationTests.java
@@ -0,0 +1,13 @@
+package com.roy.springcloud.util;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class UtilApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}