diff --git a/java2json.jar b/java2json.jar
index caca4d0..0aa3d12 100644
Binary files a/java2json.jar and b/java2json.jar differ
diff --git a/resources/META-INF/plugin.xml b/resources/META-INF/plugin.xml
index fddb155..8a119b8 100644
--- a/resources/META-INF/plugin.xml
+++ b/resources/META-INF/plugin.xml
@@ -50,6 +50,9 @@
             <add-to-group group-id="ToolsMenu" anchor="last"/>
             <action class="com.linsage.menu.ToggleCommentAction" id="menu_comment" text="Toggle Comment" icon="AllIcons.Actions.Checked"  />
             <action class="com.linsage.menu.SponsorAction" id="menu_sponsor" text="Sponsor me" />
+            <action class="com.linsage.menu.ToggleUnderLineAction" id="menu_underline" text="Toggle UnderLine"
+                    icon="AllIcons.Actions.Cancel"
+            />
         </group>
     </actions>
 
diff --git a/src/com/linsage/Java2JsonAction.java b/src/com/linsage/Java2JsonAction.java
index b646639..e90be46 100644
--- a/src/com/linsage/Java2JsonAction.java
+++ b/src/com/linsage/Java2JsonAction.java
@@ -34,7 +34,10 @@ public class Java2JsonAction extends AnAction {
     private static String pattern = "yyyy-MM-dd HH:mm:ss";
     private static DateFormat df = new SimpleDateFormat(pattern);
     public static boolean isShowComment = true;
-
+    /**
+     * 下划线模式  不用驼峰
+     */
+    public static boolean isUnderlineModel = false;
     @NonNls
     private static final Map<String, Object> normalTypes = new HashMap<>();
 
@@ -180,6 +183,26 @@ private static String getJsonKeyName(String name, String text) {
         if (matcher.find()){
             jsonKey = matcher.group(1).split(",")[0];
         }
+        //驼峰转下划线
+        if (isUnderlineModel) {
+            jsonKey = underline(jsonKey);
+        }
         return jsonKey;
     }
+    private static String underline(String name) {
+        StringBuilder buf = new StringBuilder();
+        for (int i = 0; i < name.length(); ++i) {
+            char ch = name.charAt(i);
+            if (ch >= 'A' && ch <= 'Z') {
+                char ch_ucase = (char) (ch + 32);
+                if (i > 0) {
+                    buf.append('_');
+                }
+                buf.append(ch_ucase);
+            } else {
+                buf.append(ch);
+            }
+        }
+        return buf.toString();
+    }
 }
diff --git a/src/com/linsage/menu/ToggleCommentAction.java b/src/com/linsage/menu/ToggleCommentAction.java
index 6229d3f..277cbc4 100644
--- a/src/com/linsage/menu/ToggleCommentAction.java
+++ b/src/com/linsage/menu/ToggleCommentAction.java
@@ -9,6 +9,6 @@ public class ToggleCommentAction extends AnAction {
     @Override
     public void actionPerformed(AnActionEvent e) {
         Java2JsonAction.isShowComment = !Java2JsonAction.isShowComment;
-        e.getPresentation().setIcon(Java2JsonAction.isShowComment ? AllIcons.Actions.Checked : null);
+        e.getPresentation().setIcon(Java2JsonAction.isShowComment ? AllIcons.Actions.Checked : AllIcons.Actions.Cancel);
     }
 }
diff --git a/src/com/linsage/menu/ToggleUnderLineAction.java b/src/com/linsage/menu/ToggleUnderLineAction.java
new file mode 100644
index 0000000..56806b4
--- /dev/null
+++ b/src/com/linsage/menu/ToggleUnderLineAction.java
@@ -0,0 +1,14 @@
+package com.linsage.menu;
+
+import com.intellij.icons.AllIcons;
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.linsage.Java2JsonAction;
+
+public class ToggleUnderLineAction extends AnAction {
+    @Override
+    public void actionPerformed(AnActionEvent e) {
+        Java2JsonAction.isUnderlineModel = !Java2JsonAction.isUnderlineModel;
+        e.getPresentation().setIcon(Java2JsonAction.isUnderlineModel ? AllIcons.Actions.Checked : AllIcons.Actions.Cancel);
+    }
+}