springboot_validation : init

springboot_validation/.gitignore

@@ -0,0 +1,37 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

springboot_validation/build.gradle

@@ -0,0 +1,31 @@
+plugins {
+	id 'org.springframework.boot' version '2.4.4'
+	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+	id 'java'
+}
+
+group = 'hello'
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = '11'
+
+configurations {
+	compileOnly {
+		extendsFrom annotationProcessor
+	}
+}
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	compileOnly 'org.projectlombok:lombok'
+	annotationProcessor 'org.projectlombok:lombok'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+test {
+	useJUnitPlatform()
+}

springboot_validation/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

springboot_validation/gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or 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 UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$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" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

springboot_validation/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

springboot_validation/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'validation'

springboot_validation/src/main/java/hello/itemservice/ItemServiceApplication.java

@@ -0,0 +1,13 @@
+package hello.itemservice;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ItemServiceApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(ItemServiceApplication.class, args);
+	}
+
+}

springboot_validation/src/main/java/hello/itemservice/TestDataInit.java

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+package hello.itemservice;
+
+import hello.itemservice.domain.item.Item;
+import hello.itemservice.domain.item.ItemRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+
+@Component
+@RequiredArgsConstructor
+public class TestDataInit {
+
+    private final ItemRepository itemRepository;
+
+    /**
+     * 테스트용 데이터 추가
+     */
+    @PostConstruct
+    public void init() {
+        itemRepository.save(new Item("itemA", 10000, 10));
+        itemRepository.save(new Item("itemB", 20000, 20));
+    }
+
+}

springboot_validation/src/main/java/hello/itemservice/domain/item/Item.java

@@ -0,0 +1,21 @@
+package hello.itemservice.domain.item;
+
+import lombok.Data;
+
+@Data
+public class Item {
+
+    private Long id;
+    private String itemName;
+    private Integer price;
+    private Integer quantity;
+
+    public Item() {
+    }
+
+    public Item(String itemName, Integer price, Integer quantity) {
+        this.itemName = itemName;
+        this.price = price;
+        this.quantity = quantity;
+    }
+}

springboot_validation/src/main/java/hello/itemservice/domain/item/ItemRepository.java

@@ -0,0 +1,41 @@
+package hello.itemservice.domain.item;
+
+import org.springframework.stereotype.Repository;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+public class ItemRepository {
+
+    private static final Map<Long, Item> store = new HashMap<>(); //static
+    private static long sequence = 0L; //static
+
+    public Item save(Item item) {
+        item.setId(++sequence);
+        store.put(item.getId(), item);
+        return item;
+    }
+
+    public Item findById(Long id) {
+        return store.get(id);
+    }
+
+    public List<Item> findAll() {
+        return new ArrayList<>(store.values());
+    }
+
+    public void update(Long itemId, Item updateParam) {
+        Item findItem = findById(itemId);
+        findItem.setItemName(updateParam.getItemName());
+        findItem.setPrice(updateParam.getPrice());
+        findItem.setQuantity(updateParam.getQuantity());
+    }
+
+    public void clearStore() {
+        store.clear();
+    }
+
+}

springboot_validation/src/main/java/hello/itemservice/web/validation/ValidationItemControllerV1.java

@@ -0,0 +1,62 @@
+package hello.itemservice.web.validation;
+
+import hello.itemservice.domain.item.Item;
+import hello.itemservice.domain.item.ItemRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+
+import java.util.List;
+
+@Controller
+@RequestMapping("/validation/v1/items")
+@RequiredArgsConstructor
+public class ValidationItemControllerV1 {
+
+    private final ItemRepository itemRepository;
+
+    @GetMapping
+    public String items(Model model) {
+        List<Item> items = itemRepository.findAll();
+        model.addAttribute("items", items);
+        return "validation/v1/items";
+    }
+
+    @GetMapping("/{itemId}")
+    public String item(@PathVariable long itemId, Model model) {
+        Item item = itemRepository.findById(itemId);
+        model.addAttribute("item", item);
+        return "validation/v1/item";
+    }
+
+    @GetMapping("/add")
+    public String addForm(Model model) {
+        model.addAttribute("item", new Item());
+        return "validation/v1/addForm";
+    }
+
+    @PostMapping("/add")
+    public String addItem(@ModelAttribute Item item, RedirectAttributes redirectAttributes) {
+        Item savedItem = itemRepository.save(item);
+        redirectAttributes.addAttribute("itemId", savedItem.getId());
+        redirectAttributes.addAttribute("status", true);
+        return "redirect:/validation/v1/items/{itemId}";
+    }
+
+    @GetMapping("/{itemId}/edit")
+    public String editForm(@PathVariable Long itemId, Model model) {
+        Item item = itemRepository.findById(itemId);
+        model.addAttribute("item", item);
+        return "validation/v1/editForm";
+    }
+
+    @PostMapping("/{itemId}/edit")
+    public String edit(@PathVariable Long itemId, @ModelAttribute Item item) {
+        itemRepository.update(itemId, item);
+        return "redirect:/validation/v1/items/{itemId}";
+    }
+
+}
+

springboot_validation/src/main/resources/application.properties

@@ -0,0 +1 @@
+#logging.level.org.apache.coyote.http11=debug

springboot_validation/src/main/resources/messages.properties

@@ -0,0 +1,16 @@
+hello=안녕
+hello.name=안녕 {0}
+
+label.item=상품
+label.item.id=상품 ID
+label.item.itemName=상품명
+label.item.price=가격
+label.item.quantity=수량
+
+page.items=상품 목록
+page.item=상품 상세
+page.addItem=상품 등록
+page.updateItem=상품 수정
+
+button.save=저장
+button.cancel=취소

springboot_validation/src/main/resources/messages_en.properties

@@ -0,0 +1,16 @@
+hello=hello
+hello.name=hello {0}
+
+label.item=Item
+label.item.id=Item ID
+label.item.itemName=Item Name
+label.item.price=price
+label.item.quantity=quantity
+
+page.items=Item List
+page.item=Item Detail
+page.addItem=Item Add
+page.updateItem=Item Update
+
+button.save=Save
+button.cancel=Cancel

springboot_validation/src/main/resources/static/index.html

@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>Title</title>
+</head>
+<body>
+<ul>
+    <li>상품 관리
+        <ul>
+            <li><a href="/validation/v1/items">상품 관리 - 검증 v1</a></li>
+            <li><a href="/validation/v2/items">상품 관리 - 검증 v2</a></li>
+            <li><a href="/validation/v3/items">상품 관리 - 검증 v3</a></li>
+            <li><a href="/validation/v4/items">상품 관리 - 검증 v4</a></li>
+        </ul>
+    </li>
+</ul>
+</body>
+</html>

springboot_validation/src/main/resources/templates/validation/v1/addForm.html

@@ -0,0 +1,53 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <link th:href="@{/css/bootstrap.min.css}"
+          href="../css/bootstrap.min.css" rel="stylesheet">
+    <style>
+        .container {
+            max-width: 560px;
+        }
+    </style>
+</head>
+<body>
+
+<div class="container">
+
+    <div class="py-5 text-center">
+        <h2 th:text="#{page.addItem}">상품 등록</h2>
+    </div>
+
+    <form action="item.html" th:action th:object="${item}" method="post">
+        <div>
+            <label for="itemName" th:text="#{label.item.itemName}">상품명</label>
+            <input type="text" id="itemName" th:field="*{itemName}" class="form-control" placeholder="이름을 입력하세요">
+        </div>
+        <div>
+            <label for="price" th:text="#{label.item.price}">가격</label>
+            <input type="text" id="price" th:field="*{price}" class="form-control" placeholder="가격을 입력하세요">
+        </div>
+        <div>
+            <label for="quantity" th:text="#{label.item.quantity}">수량</label>
+            <input type="text" id="quantity" th:field="*{quantity}" class="form-control" placeholder="수량을 입력하세요">
+        </div>
+
+        <hr class="my-4">
+
+        <div class="row">
+            <div class="col">
+                <button class="w-100 btn btn-primary btn-lg" type="submit" th:text="#{button.save}">상품 등록</button>
+            </div>
+            <div class="col">
+                <button class="w-100 btn btn-secondary btn-lg"
+                        onclick="location.href='items.html'"
+                        th:onclick="|location.href='@{/validation/v1/items}'|"
+                        type="button" th:text="#{button.cancel}">취소</button>
+            </div>
+        </div>
+
+    </form>
+
+</div> <!-- /container -->
+</body>
+</html>

springboot_validation/src/main/resources/templates/validation/v1/editForm.html

@@ -0,0 +1,57 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <link th:href="@{/css/bootstrap.min.css}"
+          href="../css/bootstrap.min.css" rel="stylesheet">
+    <style>
+        .container {
+            max-width: 560px;
+        }
+    </style>
+</head>
+<body>
+
+<div class="container">
+
+    <div class="py-5 text-center">
+        <h2 th:text="#{page.updateItem}">상품 수정</h2>
+    </div>
+
+    <form action="item.html" th:action th:object="${item}" method="post">
+        <div>
+            <label for="id" th:text="#{label.item.id}">상품 ID</label>
+            <input type="text" id="id" th:field="*{id}" class="form-control" readonly>
+        </div>
+        <div>
+            <label for="itemName" th:text="#{label.item.itemName}">상품명</label>
+            <input type="text" id="itemName" th:field="*{itemName}" class="form-control">
+        </div>
+        <div>
+            <label for="price" th:text="#{label.item.price}">가격</label>
+            <input type="text" id="price" th:field="*{price}" class="form-control">
+        </div>
+        <div>
+            <label for="quantity" th:text="#{label.item.quantity}">수량</label>
+            <input type="text" id="quantity" th:field="*{quantity}" class="form-control">
+        </div>
+
+        <hr class="my-4">
+
+        <div class="row">
+            <div class="col">
+                <button class="w-100 btn btn-primary btn-lg" type="submit" th:text="#{button.save}">저장</button>
+            </div>
+            <div class="col">
+                <button class="w-100 btn btn-secondary btn-lg"
+                        onclick="location.href='item.html'"
+                        th:onclick="|location.href='@{/validation/v1/items/{itemId}(itemId=${item.id})}'|"
+                        type="button" th:text="#{button.cancel}">취소</button>
+            </div>
+        </div>
+
+    </form>
+
+</div> <!-- /container -->
+</body>
+</html>

springboot_validation/src/main/resources/templates/validation/v1/item.html

@@ -0,0 +1,60 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <link th:href="@{/css/bootstrap.min.css}"
+          href="../css/bootstrap.min.css" rel="stylesheet">
+    <style>
+        .container {
+            max-width: 560px;
+        }
+    </style>
+</head>
+<body>
+
+<div class="container">
+
+    <div class="py-5 text-center">
+        <h2 th:text="#{page.item}">상품 상세</h2>
+    </div>
+
+    <!-- 추가 -->
+    <h2 th:if="${param.status}" th:text="'저장 완료'"></h2>
+
+    <div>
+        <label for="itemId" th:text="#{label.item.id}">상품 ID</label>
+        <input type="text" id="itemId" name="itemId" class="form-control" value="1" th:value="${item.id}" readonly>
+    </div>
+    <div>
+        <label for="itemName" th:text="#{label.item.itemName}">상품명</label>
+        <input type="text" id="itemName" name="itemName" class="form-control" value="상품A" th:value="${item.itemName}" readonly>
+    </div>
+    <div>
+        <label for="price" th:text="#{label.item.price}">가격</label>
+        <input type="text" id="price" name="price" class="form-control" value="10000" th:value="${item.price}" readonly>
+    </div>
+    <div>
+        <label for="quantity" th:text="#{label.item.quantity}">수량</label>
+        <input type="text" id="quantity" name="quantity" class="form-control" value="10" th:value="${item.quantity}" readonly>
+    </div>
+
+    <hr class="my-4">
+
+    <div class="row">
+        <div class="col">
+            <button class="w-100 btn btn-primary btn-lg"
+                    onclick="location.href='editForm.html'"
+                    th:onclick="|location.href='@{/validation/v1/items/{itemId}/edit(itemId=${item.id})}'|"
+                    type="button" th:text="#{page.updateItem}">상품 수정</button>
+        </div>
+        <div class="col">
+            <button class="w-100 btn btn-secondary btn-lg"
+                    onclick="location.href='items.html'"
+                    th:onclick="|location.href='@{/validation/v1/items}'|"
+                    type="button" th:text="#{button.cancel}">목록으로</button>
+        </div>
+    </div>
+
+</div> <!-- /container -->
+</body>
+</html>

springboot_validation/src/main/resources/templates/validation/v1/items.html

@@ -0,0 +1,49 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="utf-8">
+    <link th:href="@{/css/bootstrap.min.css}"
+          href="../css/bootstrap.min.css" rel="stylesheet">
+</head>
+<body>
+
+<div class="container" style="max-width: 600px">
+    <div class="py-5 text-center">
+        <h2 th:text="#{page.items}">상품 목록</h2>
+    </div>
+
+    <div class="row">
+        <div class="col">
+            <button class="btn btn-primary float-end"
+                    onclick="location.href='addForm.html'"
+                    th:onclick="|location.href='@{/validation/v1/items/add}'|"
+                    type="button" th:text="#{page.addItem}">상품 등록</button>
+        </div>
+    </div>
+
+    <hr class="my-4">
+    <div>
+        <table class="table">
+            <thead>
+            <tr>
+                <th th:text="#{label.item.id}">ID</th>
+                <th th:text="#{label.item.itemName}">상품명</th>
+                <th th:text="#{label.item.price}">가격</th>
+                <th th:text="#{label.item.quantity}">수량</th>
+            </tr>
+            </thead>
+            <tbody>
+            <tr th:each="item : ${items}">
+                <td><a href="item.html" th:href="@{/validation/v1/items/{itemId}(itemId=${item.id})}" th:text="${item.id}">회원id</a></td>
+                <td><a href="item.html" th:href="@{|/validation/v1/items/${item.id}|}" th:text="${item.itemName}">상품명</a></td>
+                <td th:text="${item.price}">10000</td>
+                <td th:text="${item.quantity}">10</td>
+            </tr>
+            </tbody>
+        </table>
+    </div>
+
+</div> <!-- /container -->
+
+</body>
+</html>

springboot_validation/src/test/java/hello/itemservice/ItemServiceApplicationTests.java

@@ -0,0 +1,13 @@
+package hello.itemservice;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ItemServiceApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

springboot_validation/src/test/java/hello/itemservice/domain/item/ItemRepositoryTest.java

@@ -0,0 +1,68 @@
+package hello.itemservice.domain.item;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.*;
+
+class ItemRepositoryTest {
+
+    ItemRepository itemRepository = new ItemRepository();
+
+    @AfterEach
+    void afterEach() {
+        itemRepository.clearStore();
+    }
+
+    @Test
+    void save() {
+        //given
+        Item item = new Item("itemA", 10000, 10);
+
+        //when
+        Item savedItem = itemRepository.save(item);
+
+        //then
+        Item findItem = itemRepository.findById(item.getId());
+        assertThat(findItem).isEqualTo(savedItem);
+    }
+
+    @Test
+    void findAll() {
+        //given
+        Item item1 = new Item("item1", 10000, 10);
+        Item item2 = new Item("item2", 20000, 20);
+
+        itemRepository.save(item1);
+        itemRepository.save(item2);
+
+        //when
+        List<Item> result = itemRepository.findAll();
+
+        //then
+        assertThat(result.size()).isEqualTo(2);
+        assertThat(result).contains(item1, item2);
+    }
+
+    @Test
+    void updateItem() {
+        //given
+        Item item = new Item("item1", 10000, 10);
+
+        Item savedItem = itemRepository.save(item);
+        Long itemId = savedItem.getId();
+
+        //when
+        Item updateParam = new Item("item2", 20000, 30);
+        itemRepository.update(itemId, updateParam);
+
+        Item findItem = itemRepository.findById(itemId);
+
+        //then
+        assertThat(findItem.getItemName()).isEqualTo(updateParam.getItemName());
+        assertThat(findItem.getPrice()).isEqualTo(updateParam.getPrice());
+        assertThat(findItem.getQuantity()).isEqualTo(updateParam.getQuantity());
+    }
+}

springboot_validation/src/test/java/hello/itemservice/message/MessageSourceTest.java

@@ -0,0 +1,53 @@
+package hello.itemservice.message;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.MessageSource;
+import org.springframework.context.NoSuchMessageException;
+
+import java.util.Locale;
+
+import static org.assertj.core.api.Assertions.*;
+
+@SpringBootTest
+public class MessageSourceTest {
+
+    @Autowired
+    MessageSource ms;
+
+    @Test
+    void helloMessage() {
+        String result = ms.getMessage("hello", null, null);
+        assertThat(result).isEqualTo("안녕");
+    }
+
+    @Test
+    void notFoundMessageCode() {
+        assertThatThrownBy(() -> ms.getMessage("no_code", null, null))
+                .isInstanceOf(NoSuchMessageException.class);
+    }
+
+    @Test
+    void notFoundMessageCodeDefaultMessage() {
+        String result = ms.getMessage("no_code", null, "기본 메시지", null);
+        assertThat(result).isEqualTo("기본 메시지");
+    }
+
+    @Test
+    void argumentMessage() {
+        String result = ms.getMessage("hello.name", new Object[]{"Spring"}, null);
+        assertThat(result).isEqualTo("안녕 Spring");
+    }
+
+    @Test
+    void defaultLang() {
+        assertThat(ms.getMessage("hello", null, null)).isEqualTo("안녕");
+        assertThat(ms.getMessage("hello", null, Locale.KOREA)).isEqualTo("안녕");
+    }
+
+    @Test
+    void enLang() {
+        assertThat(ms.getMessage("hello", null, Locale.ENGLISH)).isEqualTo("hello");
+    }
+}