diff --git a/build.gradle b/build.gradle
index 62d4270..04b4bab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ plugins {
     id 'net.minecraftforge.gradle' version '5.1.+'
 }
 
-version = '1.19-1.0.2'
+version = '1.19-1.0.3'
 group = 'com.laosun.stackone' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = 'stackone'
 
diff --git a/src/main/java/com/laosun/stackone/IgnoreItem.java b/src/main/java/com/laosun/stackone/IgnoreItem.java
new file mode 100644
index 0000000..2f587d7
--- /dev/null
+++ b/src/main/java/com/laosun/stackone/IgnoreItem.java
@@ -0,0 +1,5 @@
+package com.laosun.stackone;
+
+public class IgnoreItem {
+    public String item;
+}
diff --git a/src/main/java/com/laosun/stackone/StackOneMod.java b/src/main/java/com/laosun/stackone/StackOneMod.java
index f756e31..0fee759 100644
--- a/src/main/java/com/laosun/stackone/StackOneMod.java
+++ b/src/main/java/com/laosun/stackone/StackOneMod.java
@@ -1,51 +1,92 @@
 package com.laosun.stackone;
 
+import com.google.gson.Gson;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
 import com.mojang.logging.LogUtils;
-import net.minecraft.client.Minecraft;
-import net.minecraft.world.item.BlockItem;
-import net.minecraft.world.item.CreativeModeTab;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.level.block.Block;
-import net.minecraft.world.level.block.Blocks;
-import net.minecraft.world.level.block.state.BlockBehaviour;
-import net.minecraft.world.level.material.Material;
-import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.eventbus.api.IEventBus;
-import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
-import net.minecraftforge.event.server.ServerStartingEvent;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
-import net.minecraftforge.registries.DeferredRegister;
 import net.minecraftforge.registries.ForgeRegistries;
-import net.minecraftforge.registries.RegistryObject;
 import org.slf4j.Logger;
 
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
 import java.lang.reflect.Field;
+import java.util.ArrayList;
 
-// The value here should match an entry in the META-INF/mods.toml file
 @Mod(StackOneMod.MODID)
-public class StackOneMod
-{
+public class StackOneMod {
     // Define mod id in a common place for everything to reference
     public static final String MODID = "stackone";
     // Directly reference a slf4j logger
     private static final Logger LOGGER = LogUtils.getLogger();
     // Create a Deferred Register to hold Blocks which will all be registered under the "examplemod" namespace
 
-    public StackOneMod()
-    {
+    public StackOneMod() {
         IEventBus modEventBus = FMLJavaModLoadingContext.get().getModEventBus();
 
         // Register the commonSetup method for modloading
         modEventBus.addListener(this::commonSetup);
     }
 
-    private void commonSetup(final FMLCommonSetupEvent event)
-    {
-        for(Item i : ForgeRegistries.ITEMS){
+    private void commonSetup(final FMLCommonSetupEvent event) {
+        File dir = new File("config/stackone");
+        if (!dir.exists()) {
+            dir.mkdirs();
+        }
+        File file = new File(dir, "ignore_item.json");
+        if (!file.isFile()) {
+            try {
+                if (!file.createNewFile()) {
+                    LOGGER.error("Fail to create file!");
+                }
+            } catch (IOException e) {
+                LOGGER.error("Fail to create file!");
+                e.printStackTrace();
+            }
+        }
+        char[] a1 = null;
+        try {
+            FileReader fileReader = new FileReader(file);
+            a1 = new char[(int) file.length()];
+            fileReader.read(a1);
+        } catch (IOException e) {
+            LOGGER.error("Fail to open file!");
+            e.printStackTrace();
+        }
+        Gson gson = new Gson();
+        JsonArray jsonArray;
+        ArrayList<String> ignoreItems = new ArrayList<>();
+        try {
+            if (a1 != null) {
+                jsonArray = JsonParser.parseString(String.copyValueOf(a1)).getAsJsonArray();
+                for (JsonElement user : jsonArray) {
+                    IgnoreItem ignore = gson.fromJson(user, IgnoreItem.class);
+                    ignoreItems.add(ignore.item);
+                }
+            }
+
+        } catch (Exception e) {
+            LOGGER.error("Json has syntax error!");
+            e.printStackTrace();
+        }
+        for (Item i : ForgeRegistries.ITEMS) {
             Field a;
+            boolean is = false;
+            for (String j : ignoreItems) {
+                if (j.equals(i.getDescriptionId())) {
+                    is = true;
+                    break;
+                }
+            }
+            if (is) {
+                continue;
+            }
             try {
                 a = Item.class.getDeclaredField("maxStackSize");
             } catch (NoSuchFieldException e) {
@@ -64,6 +105,4 @@ private void commonSetup(final FMLCommonSetupEvent event)
             }
         }
     }
-
-
 }
diff --git a/src/main/resources/META-INF/mods.toml b/src/main/resources/META-INF/mods.toml
index 804c6b5..16f90d2 100644
--- a/src/main/resources/META-INF/mods.toml
+++ b/src/main/resources/META-INF/mods.toml
@@ -15,21 +15,21 @@ license="All rights reserved"
 # A list of mods - how many allowed here is determined by the individual mod loader
 [[mods]] #mandatory
 # The modid of the mod
-modId="stackone" #mandatory
+modId = "stackone" #mandatory
 # The version number of the mod - there's a few well known ${} variables useable here or just hardcode it
 # ${file.jarVersion} will substitute the value of the Implementation-Version as read from the mod's JAR file metadata
 # see the associated build.gradle script for how to populate this completely automatically during a build
-version="1.19-1.0.2" #mandatory
- # A display name for the mod
-displayName="StackOne Mod" #mandatory
+version = "1.19-1.0.3" #mandatory
+# A display name for the mod
+displayName = "StackOne Mod" #mandatory
 # A URL to query for updates for this mod. See the JSON update specification https://mcforge.readthedocs.io/en/latest/gettingstarted/autoupdate/
 #updateJSONURL="https://change.me.example.invalid/updates.json" #optional
 # A URL for the "homepage" for this mod, displayed in the mod UI
 #displayURL="https://change.me.to.your.mods.homepage.example.invalid/" #optional
 # A file name (in the root of the mod JAR) containing a logo for display
-logoFile="logo.png" #optional
+logoFile = "logo.png" #optional
 # A text field displayed in the mod UI
-authors="Lao Sun" #optional
+authors = "Lao Sun" #optional
 # Display Test controls the display for your mod in the server connection screen
 # MATCH_VERSION means that your mod will cause a red X if the versions on client and server differ. This is the default behaviour and should be what you choose if you have server and client elements to your mod.
 # IGNORE_SERVER_VERSION means that your mod will not cause a red X if it's present on the server but not on the client. This is what you should use if you're a server only mod.