diff --git a/xs-api/src/main/java/com/xiang/xservice/auth/api/dto/req/CaptchaImageRequest.java b/xs-api/src/main/java/com/xiang/xservice/auth/api/dto/req/CaptchaImageRequest.java
index 1240a0a..813edb9 100644
--- a/xs-api/src/main/java/com/xiang/xservice/auth/api/dto/req/CaptchaImageRequest.java
+++ b/xs-api/src/main/java/com/xiang/xservice/auth/api/dto/req/CaptchaImageRequest.java
@@ -4,11 +4,14 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import javax.validation.constraints.NotBlank;
+
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class CaptchaImageRequest {
 
+    @NotBlank(message = "用户名不能为空")
     private String username;
 
     private Integer number;
diff --git a/xs-server/src/main/java/com/xiang/xservice/auth/server/controller/ValidationCodeController.java b/xs-server/src/main/java/com/xiang/xservice/auth/server/controller/ValidationCodeController.java
index 1284ad5..421efaf 100644
--- a/xs-server/src/main/java/com/xiang/xservice/auth/server/controller/ValidationCodeController.java
+++ b/xs-server/src/main/java/com/xiang/xservice/auth/server/controller/ValidationCodeController.java
@@ -15,6 +15,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
+import java.util.Objects;
 
 @Slf4j
 @RestController
@@ -25,9 +26,11 @@ public class ValidationCodeController {
 
     @PostMapping("/public/captchaImage")
     public Result<CaptchaDTO> getCaptchaImage(@RequestBody @NotNull(message = "请求参数不能为空") @Valid CaptchaImageRequest request) {
+        if (Objects.isNull(request.getNumber())) {
+            request.setNumber(4);
+        }
         try {
             String randomCode = RandomCodeUtils.getNumberRandomCode(1);
-//            String randomCode = "1";
             CaptchaDTO captchaImage;
             if (StringUtils.isBlank(randomCode)) {
                 captchaImage = validCodeGenerateFactory.get(CaptchaTypeEnum.NORMAL_CAPTCHA_IMAGE.getType()).getCaptchaImage(request);
@@ -49,6 +52,10 @@ public class ValidationCodeController {
 
     @PostMapping("/public/getSmsCode")
     public Result<Void> getSmsCode(@RequestBody @NotNull(message = "请求参数不能为空") @Valid CaptchaImageRequest request) {
+        if (Objects.isNull(request.getNumber())) {
+            request.setNumber(4);
+        }
+
         try {
             validCodeGenerateFactory.get(CaptchaTypeEnum.NUMBER_CAPTCHA_CODE.getType()).getCaptchaImage(request);
             return Result.success();