diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannel.java b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannel.java
index fceff92d49..14dca78f6f 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannel.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannel.java
@@ -19,6 +19,14 @@
 
 package org.apache.dolphinscheduler.alert.api;
 
+/**
+ * alert channel for sending alerts
+ */
 public interface AlertChannel {
+    /**
+     * process and send alert
+     * @param info alert info
+     * @return process alarm result
+     */
     AlertResult process(AlertInfo info);
 }
diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannelFactory.java b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannelFactory.java
index a55c7ffa4d..2fa328e213 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannelFactory.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertChannelFactory.java
@@ -23,9 +23,21 @@ import org.apache.dolphinscheduler.spi.params.base.PluginParams;
 
 import java.util.List;
 
+/**
+ * alert channel factory
+ */
 public interface AlertChannelFactory {
+    /**
+     * Returns the name of the alert channel
+     * @return the name of the alert channel
+     */
     String name();
 
+    /**
+     * Create an alert channel
+     *
+     * @return alert channel
+     */
     AlertChannel create();
 
     /**
diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertData.java b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertData.java
index a920139503..f0c2f339b8 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertData.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertData.java
@@ -19,6 +19,11 @@
 
 package org.apache.dolphinscheduler.alert.api;
 
+import java.util.Objects;
+
+/**
+ * alert data
+ */
 public class AlertData {
     private int id;
     private String title;
@@ -85,6 +90,7 @@ public class AlertData {
         this.warnType = warnType;
     }
 
+    @Override
     public boolean equals(final Object o) {
         if (o == this) {
             return true;
@@ -93,7 +99,7 @@ public class AlertData {
             return false;
         }
         final AlertData other = (AlertData) o;
-        if (!other.canEqual((Object) this)) {
+        if (!other.canEqual(this)) {
             return false;
         }
         if (this.getId() != other.getId()) {
@@ -102,42 +108,41 @@ public class AlertData {
         if (this.getWarnType() != other.getWarnType()) {
             return false;
         }
-        final Object this$title = this.getTitle();
-        final Object other$title = other.getTitle();
-        if (this$title == null ? other$title != null : !this$title.equals(other$title)) {
-            return false;
-        }
-        final Object this$content = this.getContent();
-        final Object other$content = other.getContent();
-        if (this$content == null ? other$content != null : !this$content.equals(other$content)) {
+        final Object thisTitle = this.getTitle();
+        final Object otherTitle = other.getTitle();
+        if (!Objects.equals(thisTitle, otherTitle)) {
             return false;
         }
-        final Object this$log = this.getLog();
-        final Object other$log = other.getLog();
-        if (this$log == null ? other$log != null : !this$log.equals(other$log)) {
+        final Object thisContent = this.getContent();
+        final Object otherContent = other.getContent();
+        if (!Objects.equals(thisContent, otherContent)) {
             return false;
         }
-        return true;
+        final Object thisLog = this.getLog();
+        final Object otherLog = other.getLog();
+        return Objects.equals(thisLog, otherLog);
     }
 
     protected boolean canEqual(final Object other) {
         return other instanceof AlertData;
     }
 
+    @Override
     public int hashCode() {
-        final int PRIME = 59;
+        final int prime = 59;
         int result = 1;
-        result = result * PRIME + this.getId();
-        result = result * PRIME + this.getWarnType();
-        final Object $title = this.getTitle();
-        result = result * PRIME + ($title == null ? 43 : $title.hashCode());
-        final Object $content = this.getContent();
-        result = result * PRIME + ($content == null ? 43 : $content.hashCode());
-        final Object $log = this.getLog();
-        result = result * PRIME + ($log == null ? 43 : $log.hashCode());
+        result = result * prime + this.getId();
+        result = result * prime + this.getWarnType();
+        final Object title = this.getTitle();
+        result = result * prime + (title == null ? 43 : title.hashCode());
+        final Object content = this.getContent();
+        result = result * prime + (content == null ? 43 : content.hashCode());
+        final Object log = this.getLog();
+        result = result * prime + (log == null ? 43 : log.hashCode());
         return result;
     }
 
+    @Override
     public String toString() {
         return "AlertData(id=" + this.getId() + ", title=" + this.getTitle() + ", content=" + this.getContent() + ", log=" + this.getLog() + ", warnType=" + this.getWarnType() + ")";
     }
@@ -181,6 +186,7 @@ public class AlertData {
             return new AlertData(id, title, content, log, warnType);
         }
 
+        @Override
         public String toString() {
             return "AlertData.AlertDataBuilder(id=" + this.id + ", title=" + this.title + ", content=" + this.content + ", log=" + this.log + ", warnType=" + this.warnType + ")";
         }
diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertInfo.java b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertInfo.java
index 6dbc8205e6..c3ff3d21c9 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertInfo.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertInfo.java
@@ -20,7 +20,11 @@
 package org.apache.dolphinscheduler.alert.api;
 
 import java.util.Map;
+import java.util.Objects;
 
+/**
+ * The alarm information includes the parameters of the alert channel and the alarm data
+ */
 public class AlertInfo {
     private Map<String, String> alertParams;
     private AlertData alertData;
@@ -55,6 +59,7 @@ public class AlertInfo {
         return this;
     }
 
+    @Override
     public boolean equals(final Object o) {
         if (o == this) {
             return true;
@@ -66,33 +71,32 @@ public class AlertInfo {
         if (!other.canEqual((Object) this)) {
             return false;
         }
-        final Object this$alertParams = this.getAlertParams();
-        final Object other$alertParams = other.getAlertParams();
-        if (this$alertParams == null ? other$alertParams != null : !this$alertParams.equals(other$alertParams)) {
-            return false;
-        }
-        final Object this$alertData = this.getAlertData();
-        final Object other$alertData = other.getAlertData();
-        if (this$alertData == null ? other$alertData != null : !this$alertData.equals(other$alertData)) {
+        final Object thisAlertParams = this.getAlertParams();
+        final Object otherAlertParams = other.getAlertParams();
+        if (!Objects.equals(thisAlertParams, otherAlertParams)) {
             return false;
         }
-        return true;
+        final Object thisAlertData = this.getAlertData();
+        final Object otherAlertData = other.getAlertData();
+        return Objects.equals(thisAlertData, otherAlertData);
     }
 
     protected boolean canEqual(final Object other) {
         return other instanceof AlertInfo;
     }
 
+    @Override
     public int hashCode() {
-        final int PRIME = 59;
+        final int prime = 59;
         int result = 1;
-        final Object $alertParams = this.getAlertParams();
-        result = result * PRIME + ($alertParams == null ? 43 : $alertParams.hashCode());
-        final Object $alertData = this.getAlertData();
-        result = result * PRIME + ($alertData == null ? 43 : $alertData.hashCode());
+        final Object alertParams = this.getAlertParams();
+        result = result * prime + (alertParams == null ? 43 : alertParams.hashCode());
+        final Object alertData = this.getAlertData();
+        result = result * prime + (alertData == null ? 43 : alertData.hashCode());
         return result;
     }
 
+    @Override
     public String toString() {
         return "AlertInfo(alertParams=" + this.getAlertParams() + ", alertData=" + this.getAlertData() + ")";
     }
@@ -118,6 +122,7 @@ public class AlertInfo {
             return new AlertInfo(alertParams, alertData);
         }
 
+        @Override
         public String toString() {
             return "AlertInfo.AlertInfoBuilder(alertParams=" + this.alertParams + ", alertData=" + this.alertData + ")";
         }
diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertResult.java b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertResult.java
index 4343c13408..ede235c953 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertResult.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-api/src/main/java/org/apache/dolphinscheduler/alert/api/AlertResult.java
@@ -19,6 +19,11 @@
 
 package org.apache.dolphinscheduler.alert.api;
 
+import java.util.Objects;
+
+/**
+ * alert result
+ */
 public class AlertResult {
     private String status;
     private String message;
@@ -53,6 +58,7 @@ public class AlertResult {
         return this;
     }
 
+    @Override
     public boolean equals(final Object o) {
         if (o == this) {
             return true;
@@ -61,36 +67,35 @@ public class AlertResult {
             return false;
         }
         final AlertResult other = (AlertResult) o;
-        if (!other.canEqual((Object) this)) {
-            return false;
-        }
-        final Object this$status = this.getStatus();
-        final Object other$status = other.getStatus();
-        if (this$status == null ? other$status != null : !this$status.equals(other$status)) {
+        if (!other.canEqual(this)) {
             return false;
         }
-        final Object this$message = this.getMessage();
-        final Object other$message = other.getMessage();
-        if (this$message == null ? other$message != null : !this$message.equals(other$message)) {
+        final Object thisStatus = this.getStatus();
+        final Object otherStatus = other.getStatus();
+        if (!Objects.equals(thisStatus, otherStatus)) {
             return false;
         }
-        return true;
+        final Object thisMessage = this.getMessage();
+        final Object otherMessage = other.getMessage();
+        return Objects.equals(thisMessage, otherMessage);
     }
 
     protected boolean canEqual(final Object other) {
         return other instanceof AlertResult;
     }
 
+    @Override
     public int hashCode() {
-        final int PRIME = 59;
+        final int prime = 59;
         int result = 1;
-        final Object $status = this.getStatus();
-        result = result * PRIME + ($status == null ? 43 : $status.hashCode());
-        final Object $message = this.getMessage();
-        result = result * PRIME + ($message == null ? 43 : $message.hashCode());
+        final Object s = this.getStatus();
+        result = result * prime + (s == null ? 43 : s.hashCode());
+        final Object message = this.getMessage();
+        result = result * prime + (message == null ? 43 : message.hashCode());
         return result;
     }
 
+    @Override
     public String toString() {
         return "AlertResult(status=" + this.getStatus() + ", message=" + this.getMessage() + ")";
     }
@@ -116,6 +121,7 @@ public class AlertResult {
             return new AlertResult(status, message);
         }
 
+        @Override
         public String toString() {
             return "AlertResult.AlertResultBuilder(status=" + this.status + ", message=" + this.message + ")";
         }