add

backend/src/main/java/com/nursinghome/common/ApiResponse.java

@@ -14,11 +14,11 @@ public class ApiResponse<T> {
     }
 
     public static <T> ApiResponse<T> success(T data) {
-        return new ApiResponse<>(0, "ok", data);
+        return new ApiResponse<>(0, "成功", data);
     }
 
     public static <T> ApiResponse<T> success() {
-        return new ApiResponse<>(0, "ok", null);
+        return new ApiResponse<>(0, "成功", null);
     }
 
     public static <T> ApiResponse<T> error(String message) {

backend/src/main/java/com/nursinghome/common/GlobalExceptionHandler.java

@@ -14,7 +14,7 @@ public class GlobalExceptionHandler {
     @ExceptionHandler(MethodArgumentNotValidException.class)
     public ApiResponse<Void> handleValid(MethodArgumentNotValidException ex) {
         String msg = ex.getBindingResult().getAllErrors().isEmpty()
-            ? "validation error" : ex.getBindingResult().getAllErrors().get(0).getDefaultMessage();
+            ? "参数校验失败" : ex.getBindingResult().getAllErrors().get(0).getDefaultMessage();
         return ApiResponse.error(msg);
     }
 

backend/src/main/java/com/nursinghome/controller/AuthController.java

@@ -31,13 +31,13 @@ public class AuthController {
     public ApiResponse<Map<String, Object>> login(@Valid @RequestBody LoginRequest request) {
         User user = userService.findByUsername(request.getUsername());
         if (user == null) {
-            throw new ApiException("user not found");
+            throw new ApiException("账号不存在");
         }
         if (user.getStatus() != null && user.getStatus() == 0) {
-            throw new ApiException("user disabled");
+            throw new ApiException("账号已被禁用");
         }
         if (!PasswordUtil.matches(request.getPassword(), user.getPassword())) {
-            throw new ApiException("invalid password");
+            throw new ApiException("密码错误");
         }
         if (!PasswordUtil.isBcrypt(user.getPassword())) {
             userService.updatePassword(user.getId(), PasswordUtil.hash(request.getPassword()));

backend/src/main/java/com/nursinghome/controller/FamilyController.java

@@ -73,7 +73,7 @@ public class FamilyController {
             }
         }
         if (!allowed) {
-            throw new ApiException("no access to this elder");
+            throw new ApiException("无权访问该亲属");
         }
         return ApiResponse.success(careRecordMapper.listByElderId(elderId));
     }
@@ -89,7 +89,7 @@ public class FamilyController {
             }
         }
         if (!allowed) {
-            throw new ApiException("no access to this elder");
+            throw new ApiException("无权访问该亲属");
         }
         return ApiResponse.success(healthRecordMapper.listByElderId(elderId));
     }
@@ -105,7 +105,7 @@ public class FamilyController {
             }
         }
         if (!allowed) {
-            throw new ApiException("no access to this elder");
+            throw new ApiException("无权访问该亲属");
         }
         return ApiResponse.success(billService.listByElderId(elderId));
     }
@@ -115,7 +115,7 @@ public class FamilyController {
         Long familyId = Long.valueOf(StpUtil.getLoginId().toString());
         Bill bill = billMapper.findById(id);
         if (bill == null) {
-            throw new ApiException("bill not found");
+            throw new ApiException("账单不存在");
         }
         boolean allowed = false;
         for (FamilyElder relation : familyService.listRelations(familyId)) {
@@ -125,10 +125,10 @@ public class FamilyController {
             }
         }
         if (!allowed) {
-            throw new ApiException("no access to this bill");
+            throw new ApiException("无权访问该账单");
         }
         if ("PAID".equals(bill.getStatus())) {
-            throw new ApiException("bill already paid");
+            throw new ApiException("账单已支付");
         }
         BigDecimal amount = bill.getTotal() == null ? BigDecimal.ZERO : bill.getTotal();
         billService.payBill(id, familyId, request.getMethod(), amount);

backend/src/main/java/com/nursinghome/controller/FileController.java

@@ -21,7 +21,7 @@ public class FileController {
     @PostMapping("/upload")
     public ApiResponse<Map<String, Object>> upload(@RequestParam("file") MultipartFile file) throws IOException {
         if (file.isEmpty()) {
-            return ApiResponse.error("empty file");
+            return ApiResponse.error("文件为空");
         }
         String original = file.getOriginalFilename();
         String ext = StringUtils.getFilenameExtension(original);

backend/src/main/java/com/nursinghome/dto/LoginRequest.java

@@ -3,9 +3,9 @@ package com.nursinghome.dto;
 import jakarta.validation.constraints.NotBlank;
 
 public class LoginRequest {
-    @NotBlank(message = "username required")
+    @NotBlank(message = "账号不能为空")
     private String username;
-    @NotBlank(message = "password required")
+    @NotBlank(message = "密码不能为空")
     private String password;
 
     public String getUsername() {

backend/src/main/java/com/nursinghome/dto/RegisterRequest.java

@@ -3,14 +3,14 @@ package com.nursinghome.dto;
 import jakarta.validation.constraints.NotBlank;
 
 public class RegisterRequest {
-    @NotBlank(message = "username required")
+    @NotBlank(message = "账号不能为空")
     private String username;
-    @NotBlank(message = "password required")
+    @NotBlank(message = "密码不能为空")
     private String password;
-    @NotBlank(message = "name required")
+    @NotBlank(message = "姓名不能为空")
     private String name;
     private String phone;
-    @NotBlank(message = "elderIdCard required")
+    @NotBlank(message = "亲属身份证号不能为空")
     private String elderIdCard;
     private String relationship;
 

backend/src/main/java/com/nursinghome/service/ElderService.java

@@ -29,7 +29,7 @@ public class ElderService {
 
     public Elder create(Elder elder) {
         if (elderMapper.findByIdCard(elder.getIdCard()) != null) {
-            throw new ApiException("id card already exists");
+            throw new ApiException("身份证号已存在");
         }
         elderMapper.insert(elder);
         return elder;

backend/src/main/java/com/nursinghome/service/FamilyService.java

@@ -25,7 +25,7 @@ public class FamilyService {
     public User registerFamily(String username, String password, String name, String phone, String elderIdCard, String relationship) {
         Elder elder = elderService.findByIdCard(elderIdCard);
         if (elder == null) {
-            throw new ApiException("elder not found");
+            throw new ApiException("未找到该亲属");
         }
         User user = new User();
         user.setUsername(username);

backend/src/main/java/com/nursinghome/service/UserService.java

@@ -30,7 +30,7 @@ public class UserService {
 
     public User createUser(User user, boolean hashPassword) {
         if (userMapper.findByUsername(user.getUsername()) != null) {
-            throw new ApiException("username already exists");
+            throw new ApiException("账号已存在");
         }
         if (hashPassword) {
             user.setPassword(PasswordUtil.hash(user.getPassword()));