Fix proxy issue

Author: kakao-robin-hwang

angular.json

@@ -50,7 +50,8 @@
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",
           "options": {
-            "browserTarget": "spring-boot-angular-example:build"
+            "browserTarget": "spring-boot-angular-example:build",
+            "proxyConfig": "src/proxy.conf.json"
           },
           "configurations": {
             "prod": {
@@ -134,4 +135,4 @@
   "cli": {
     "analytics": false
   }
-}
+}

build.gradle

@@ -1,6 +1,6 @@
 plugins {
-	id 'org.springframework.boot' version '2.2.2.RELEASE'
-	id 'io.spring.dependency-management' version '1.0.8.RELEASE'
+	id 'org.springframework.boot' version '2.4.3'
+	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
 	id 'java'
 }
 
@@ -26,6 +26,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-actuator'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	implementation 'com.h2database:h2:'
 	compileOnly 'org.projectlombok:lombok'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'

package.json

@@ -4,7 +4,7 @@
   "license": "MIT",
   "scripts": {
     "ng": "ng",
-    "start": "ng serve --proxy-config proxy.conf.json",
+    "start": "ng serve",
     "build": "ng build",
     "test": "ng test",
     "lint": "ng lint",