diff --git a/powerjob-common/src/main/java/tech/powerjob/common/OmsConstant.java b/powerjob-common/src/main/java/tech/powerjob/common/OmsConstant.java
index 129ac429..99a1b2ba 100644
--- a/powerjob-common/src/main/java/tech/powerjob/common/OmsConstant.java
+++ b/powerjob-common/src/main/java/tech/powerjob/common/OmsConstant.java
@@ -17,6 +17,7 @@ public class OmsConstant {
     public static final String NONE = "N/A";
 
     public static final String COMMA = ",";
+    public static final String MINUS = "-";
     public static final String LINE_SEPARATOR = "\r\n";
 
     public static final String HTTP_HEADER_CONTENT_TYPE = "Content-Type";
diff --git a/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/SJ.java b/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/SJ.java
index 443300b2..27787fd9 100644
--- a/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/SJ.java
+++ b/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/SJ.java
@@ -2,6 +2,7 @@ package tech.powerjob.server.common;
 
 import com.google.common.base.Joiner;
 import com.google.common.base.Splitter;
+import tech.powerjob.common.OmsConstant;
 
 /**
  * Splitter & Joiner
@@ -11,7 +12,7 @@ import com.google.common.base.Splitter;
  */
 public class SJ {
 
-    public static final Splitter COMMA_SPLITTER = Splitter.on(",");
-    public static final Joiner COMMA_JOINER = Joiner.on(",");
+    public static final Splitter COMMA_SPLITTER = Splitter.on(OmsConstant.COMMA);
+    public static final Joiner COMMA_JOINER = Joiner.on(OmsConstant.COMMA);
 
 }
diff --git a/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/utils/TimeUtils.java b/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/utils/TimeUtils.java
index 664a671c..810b5208 100644
--- a/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/utils/TimeUtils.java
+++ b/powerjob-server/powerjob-server-common/src/main/java/tech/powerjob/server/common/utils/TimeUtils.java
@@ -2,6 +2,7 @@ package tech.powerjob.server.common.utils;
 
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.Pair;
+import tech.powerjob.common.OmsConstant;
 import tech.powerjob.common.RemoteConstant;
 import com.google.common.collect.Lists;
 import lombok.extern.slf4j.Slf4j;
@@ -48,9 +49,9 @@ public class TimeUtils {
 
         // 只保留结束时间在当前时间前的生命周期
         lifeCycle.forEach(range -> {
-            String[] split = range.split("-");
+            String[] split = range.split(OmsConstant.MINUS);
             long end = Long.parseLong(split[1]);
-            if (end < startTime) {
+            if (end <= startTime) {
                 return;
             }
             remainingLifecycle.add(Pair.of(Long.valueOf(split[0]), end));
diff --git a/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/service/UserService.java b/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/service/UserService.java
index 6af93504..59f45ea9 100644
--- a/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/service/UserService.java
+++ b/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/service/UserService.java
@@ -1,11 +1,11 @@
 package tech.powerjob.server.core.service;
 
-import tech.powerjob.server.persistence.remote.model.UserInfoDO;
-import tech.powerjob.server.persistence.remote.repository.UserInfoRepository;
-import com.google.common.base.Splitter;
 import com.google.common.collect.Lists;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
+import tech.powerjob.server.common.SJ;
+import tech.powerjob.server.persistence.remote.model.UserInfoDO;
+import tech.powerjob.server.persistence.remote.repository.UserInfoRepository;
 
 import javax.annotation.Resource;
 import java.util.Date;
@@ -45,7 +45,7 @@ public class UserService {
             return Lists.newLinkedList();
         }
         // 去重
-        Set<Long> userIdList = Splitter.on(",").splitToList(userIds).stream().map(Long::valueOf).collect(Collectors.toSet());
+        Set<Long> userIdList = SJ.COMMA_SPLITTER.splitToList(userIds).stream().map(Long::valueOf).collect(Collectors.toSet());
         List<UserInfoDO> res = userInfoRepository.findByIdIn(Lists.newLinkedList(userIdList));
         res.forEach(x -> x.setPassword(null));
         return res;
diff --git a/powerjob-worker-agent/src/main/java/tech/powerjob/agent/MainApplication.java b/powerjob-worker-agent/src/main/java/tech/powerjob/agent/MainApplication.java
index b89767f1..34b2805c 100644
--- a/powerjob-worker-agent/src/main/java/tech/powerjob/agent/MainApplication.java
+++ b/powerjob-worker-agent/src/main/java/tech/powerjob/agent/MainApplication.java
@@ -1,5 +1,6 @@
 package tech.powerjob.agent;
 
+import tech.powerjob.common.OmsConstant;
 import tech.powerjob.common.RemoteConstant;
 import tech.powerjob.worker.PowerJobWorker;
 import tech.powerjob.worker.common.PowerJobWorkerConfig;
@@ -52,7 +53,7 @@ public class MainApplication implements Runnable {
 
             cfg.setAppName(appName);
             cfg.setPort(port);
-            cfg.setServerAddress(Splitter.on(",").splitToList(server));
+            cfg.setServerAddress(Splitter.on(OmsConstant.COMMA).splitToList(server));
             cfg.setStoreStrategy(StoreStrategy.MEMORY.name().equals(storeStrategy) ? StoreStrategy.MEMORY : StoreStrategy.DISK);
             cfg.setMaxResultLength(length);
             cfg.setTag(tag);
diff --git a/powerjob-worker-spring-boot-starter/src/main/java/tech/powerjob/worker/autoconfigure/PowerJobAutoConfiguration.java b/powerjob-worker-spring-boot-starter/src/main/java/tech/powerjob/worker/autoconfigure/PowerJobAutoConfiguration.java
index 3f8b196d..5f48e437 100644
--- a/powerjob-worker-spring-boot-starter/src/main/java/tech/powerjob/worker/autoconfigure/PowerJobAutoConfiguration.java
+++ b/powerjob-worker-spring-boot-starter/src/main/java/tech/powerjob/worker/autoconfigure/PowerJobAutoConfiguration.java
@@ -1,5 +1,6 @@
 package tech.powerjob.worker.autoconfigure;
 
+import tech.powerjob.common.OmsConstant;
 import tech.powerjob.common.utils.CommonUtils;
 import tech.powerjob.common.utils.NetUtils;
 import tech.powerjob.worker.PowerJobWorker;
@@ -37,7 +38,7 @@ public class PowerJobAutoConfiguration {
          * any prefix, i.e. http://.
          */
         CommonUtils.requireNonNull(worker.getServerAddress(), "serverAddress can't be empty!");
-        List<String> serverAddress = Arrays.asList(worker.getServerAddress().split(","));
+        List<String> serverAddress = Arrays.asList(worker.getServerAddress().split(OmsConstant.COMMA));
 
         /*
          * Create OhMyConfig object for setting properties.