diff --git a/src/main/java/com/zh/project0512/mapper/CommonWordsMapper.java b/src/main/java/com/zh/project0512/mapper/CommonWordsMapper.java
new file mode 100644
index 0000000..a0d11a8
--- /dev/null
+++ b/src/main/java/com/zh/project0512/mapper/CommonWordsMapper.java
@@ -0,0 +1,31 @@
+package com.zh.project0512.mapper;
+
+import com.zh.project0512.model.CommonWords;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.zh.project0512.model.Tag;
+import org.apache.ibatis.annotations.Update;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author zh
+ * @since 2023-02-16
+ */
+public interface CommonWordsMapper extends BaseMapper<CommonWords> {
+    @Update("update commonWords set sortWeight = sortWeight + 1 where sortWeight <> 0;\n" +
+        "insert into commonWords ( title, creatAt,sortWeight) VALUES ( #{title}, #{creatAt},1 );")
+    void addWords(CommonWords words);
+    @Update("<script>" +
+        "update commonWords set sortWeight = -1 where sortWeight = #{origin};\n" +
+        "<if test='originHigherCurrent'> " +
+        "update commonWords set sortWeight = sortWeight + 1 where sortWeight &lt;&gt; 0 and sortWeight &gt;= #{current} and sortWeight &lt; #{origin};"+
+        "</if>" +
+        "<if test='!originHigherCurrent'> " +
+        "update commonWords set sortWeight = sortWeight - 1 where sortWeight &lt;&gt; 0 and sortWeight &gt; #{origin} and sortWeight &lt;= #{current};\n" +
+        "</if>" +
+        "update commonWords set sortWeight = #{current} where sortWeight = -1;" +
+        "</script>")
+    void updSort(int origin, int current, boolean originHigherCurrent);
+}
diff --git a/src/main/java/com/zh/project0512/model/CommonWords.java b/src/main/java/com/zh/project0512/model/CommonWords.java
new file mode 100644
index 0000000..142efd8
--- /dev/null
+++ b/src/main/java/com/zh/project0512/model/CommonWords.java
@@ -0,0 +1,56 @@
+package com.zh.project0512.model;
+
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.extension.activerecord.Model;
+import com.baomidou.mybatisplus.annotation.TableId;
+import java.time.LocalDateTime;
+import com.baomidou.mybatisplus.annotation.TableField;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author zh
+ * @since 2023-02-16
+ */
+@Data
+@EqualsAndHashCode(callSuper = true)
+@Accessors(chain = true)
+@TableName("commonWords")
+public class CommonWords extends Model {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId(value = "id", type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 标题
+     */
+    private String title;
+
+    @TableField("creatAt")
+    private LocalDateTime creatAt;
+
+    @TableField("updateAt")
+    private LocalDateTime updateAt;
+
+    /**
+     * 排序权重:数字越小排序靠前
+     */
+    @TableField("sortWeight")
+    private Integer sortWeight;
+
+    /**
+     * 是否删除:0否；1是
+     */
+    @TableField("isDeleted")
+    private Integer isDeleted;
+
+
+}
diff --git a/src/main/java/com/zh/project0512/service/ICommonWordsService.java b/src/main/java/com/zh/project0512/service/ICommonWordsService.java
new file mode 100644
index 0000000..b9489d4
--- /dev/null
+++ b/src/main/java/com/zh/project0512/service/ICommonWordsService.java
@@ -0,0 +1,18 @@
+package com.zh.project0512.service;
+
+import com.zh.project0512.model.CommonWords;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.zh.project0512.model.Tag;
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author zh
+ * @since 2023-02-16
+ */
+public interface ICommonWordsService extends IService<CommonWords> {
+    void addWords(CommonWords words);
+    void updSort(int origin, int current, boolean originHigherCurrent);
+}
diff --git a/src/main/java/com/zh/project0512/serviceImpl/CommonWordsServiceImpl.java b/src/main/java/com/zh/project0512/serviceImpl/CommonWordsServiceImpl.java
new file mode 100644
index 0000000..a9d6400
--- /dev/null
+++ b/src/main/java/com/zh/project0512/serviceImpl/CommonWordsServiceImpl.java
@@ -0,0 +1,30 @@
+package com.zh.project0512.serviceImpl;
+
+import com.zh.project0512.mapper.TagMapper;
+import com.zh.project0512.model.CommonWords;
+import com.zh.project0512.mapper.CommonWordsMapper;
+import com.zh.project0512.model.Tag;
+import com.zh.project0512.service.ICommonWordsService;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author zh
+ * @since 2023-02-16
+ */
+@Service
+public class CommonWordsServiceImpl extends ServiceImpl<CommonWordsMapper, CommonWords> implements ICommonWordsService {
+    @Autowired
+    private CommonWordsMapper commonWordsMapper;
+    public void addWords(CommonWords words){
+        commonWordsMapper.addWords(words);
+    }
+    public void updSort(int origin, int current, boolean originHigherCurrent) {
+        commonWordsMapper.updSort(origin, current, originHigherCurrent);
+    }
+}