[EDIT] プロフィール編集画面の項目を修正しました。（パスワード→生年月日）、ボタンのテキストを変更しました。（確認→確定）

src/main/java/com/example/demo/app/domain/service/impl/ProfileServiceImpl.java

@@ -58,6 +58,7 @@ public class ProfileServiceImpl implements ProfileService{
 	    userEntity.setSaving(profileEditForm.getSaving());
 	    userEntity.setAnnualIncome(profileEditForm.getAnnualIncome());
 	    userEntity.setMonthlyBudget(profileEditForm.getMonthlyBudget());
+	    userEntity.setBirthDate(profileEditForm.getBirthDate());
 	    userRepository.save(userEntity);
 	}
 }

src/main/java/com/example/demo/app/presentation/controller/ProfileController.java

@@ -56,7 +56,8 @@ public class ProfileController {
 	                    profileModel.getMailAddress(),
 	                    profileModel.getSaving(),
 	                    profileModel.getAnnualIncome(),
-	                    profileModel.getMonthlyBudget());
+	                    profileModel.getMonthlyBudget(),
+	                    profileModel.getBirthDate());
 
 	    model.addAttribute(PageReturnAttributeKeyword.PROFILE_EDIT_FORM, profileEditForm);
 	    return TransitionTargetPageNameKeyword.PROFILE_EDIT_HTML;

src/main/java/com/example/demo/app/presentation/form/ProfileEditForm.java

@@ -1,5 +1,7 @@
 package com.example.demo.app.presentation.form;
 
+import java.time.LocalDate;
+
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -13,4 +15,5 @@ public class ProfileEditForm {
 	private Integer saving;
 	private Integer annualIncome;
 	private Integer monthlyBudget;
+	private LocalDate birthDate;
 }

src/main/resources/templates/profile_edit.html

@@ -52,13 +52,15 @@
 
 		                <div class="mb-3">
 		                    <label class="form-label">
-		                        パスワード
+		                        生年月日
 		                    </label>
 
-		                    <input type="password"
+		                    <input type="date"
 		                           class="form-control"
-		                           value="********"
-		                           disabled>
+								   id="birthDate"
+								   name="birthDate"
+		                           th:value="*{birthDate}"
+		                           required>
 		                </div>
 
 		                <div class="mb-3">
@@ -105,7 +107,7 @@
 					<div class="d-grid">
 	                    <button type="submit"
 	                            class="btn btn-primary">
-	                        確認
+	                        確定
 	                    </button>
 	                </div>