diff --git a/api/src/main/java/me/xiaoyan/point/api/controller/SignController.java b/api/src/main/java/me/xiaoyan/point/api/controller/SignController.java
index be6b06f..54de16c 100644
--- a/api/src/main/java/me/xiaoyan/point/api/controller/SignController.java
+++ b/api/src/main/java/me/xiaoyan/point/api/controller/SignController.java
@@ -7,10 +7,13 @@ import me.xiaoyan.point.api.service.SignRecordService;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import javax.annotation.Resource;
+
 @RestController
 @RequestMapping("sign")
 public class SignController {
 
+    @Resource
     private SignRecordService signRecordService;
 
     @ApiOperation("今日签到")
diff --git a/api/src/main/java/me/xiaoyan/point/api/service/impl/SignRecordServiceImpl.java b/api/src/main/java/me/xiaoyan/point/api/service/impl/SignRecordServiceImpl.java
index 05351b6..d4e2ab5 100644
--- a/api/src/main/java/me/xiaoyan/point/api/service/impl/SignRecordServiceImpl.java
+++ b/api/src/main/java/me/xiaoyan/point/api/service/impl/SignRecordServiceImpl.java
@@ -51,6 +51,14 @@ public class SignRecordServiceImpl extends ServiceImpl<SignRecordMapper, SignRec
         List<Date> dates = new ArrayList<>();
         if (isSign) {
             dates.add(new Date());
+        }else{
+            // 没有记录直接返回0
+            if(signRecords.size() == 0) return 0;
+            Date firstDate = signRecords.get(0).getCreateTime();
+            // 第一个记录是否是今天
+            if(!DateUtils.isToday(firstDate) && !DateUtils.isYesterday(firstDate)){
+                return 0;
+            }
         }
         signRecords.forEach(it -> dates.add(it.getCreateTime()));
         Date[] dateArr = new Date[dates.size()];
diff --git a/api/src/main/java/me/xiaoyan/point/api/util/DateUtils.java b/api/src/main/java/me/xiaoyan/point/api/util/DateUtils.java
index 389691c..575ac14 100644
--- a/api/src/main/java/me/xiaoyan/point/api/util/DateUtils.java
+++ b/api/src/main/java/me/xiaoyan/point/api/util/DateUtils.java
@@ -2,6 +2,7 @@ package me.xiaoyan.point.api.util;
 
 import lombok.SneakyThrows;
 
+import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
@@ -31,6 +32,9 @@ public class DateUtils {
     }
 
     public static int continuousDays(Date[] dates) {
+        if(dates.length == 0){
+            return 0;
+        }
         int totalDays = 1;
         for (int i = 1;i < dates.length; i ++){
             Date d1 = dates[i-1];
@@ -43,6 +47,25 @@ public class DateUtils {
         return totalDays;
     }
 
+    public static boolean isToday(String d){
+        try {
+            return isToday(full.parse(d));
+        } catch (ParseException e) {
+            return false;
+        }
+    }
+    public static boolean isToday(Date d){
+        if(d == null) return false;
+        return today().equalsIgnoreCase(formatDate(d));
+    }
+
+    public static boolean isYesterday(Date d){
+        if(d == null) return false;
+        Date today = new Date(); // 今天
+        if(today.getTime() < d.getTime()) return false;
+        return isBetween(today,d);
+    }
+
     public static boolean isBetween(Date d1,Date d2){
         // 直接获取两个日期之间的毫秒,计算
         Date date1 = parse(formatDate(d1) + " 00:00:00");