fix:88095

laws-modules/src/main/java/com/jero/modules/tag/controller/LawsTagController.java

@@ -30,6 +30,8 @@ import org.springframework.web.servlet.ModelAndView;
 
 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
+import java.sql.SQLException;
+import java.sql.SQLSyntaxErrorException;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
@@ -134,6 +136,7 @@ public class LawsTagController extends JeroController<LawsTag, ILawsTagService>
 			}
 			return Result.OK(ResultCommon.OK);
 		}
+
 		return result;
 	}
 

laws-modules/src/main/java/com/jero/modules/tag/mapper/LawsTagMapper.java

@@ -57,6 +57,14 @@ public interface LawsTagMapper extends BaseMapper<LawsTag> {
 
     int updateAllById(@Param("updated")LawsTag updated);
 
+    /**
+     * 查看字段是否已存在
+     * @param tableName 表名
+     * @param dbFieldName 字段名
+     * @return
+     */
+    long selectColumns(@Param("tableName") String tableName,@Param("dbFieldName") String dbFieldName);
+
 
 
 }

laws-modules/src/main/java/com/jero/modules/tag/mapper/xml/LawsTagMapper.xml

@@ -133,7 +133,7 @@
         where is_model=#{isModel} and db_field_en_name=#{dbFieldEnName} and db_field_txt=#{dbFieldTxt} and del_flag = 1
     </select>
 
-<!--auto generated by MybatisCodeHelper on 2023-11-09-->
+    <!--auto generated by MybatisCodeHelper on 2023-11-09-->
     <update id="updateAllById">
         update laws_tag
         <set>
@@ -169,4 +169,10 @@
         </set>
         where id = #{updated.id}
     </update>
-</mapper>
+    <select id="selectColumns" resultType="java.lang.Long">
+        SELECT count(*)
+        FROM INFORMATION_SCHEMA.COLUMNS
+        WHERE TABLE_NAME = #{tableName}
+        AND COLUMN_NAME = #{dbFieldName}
+    </select>
+</mapper>

laws-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java

@@ -6,6 +6,7 @@ import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.jero.common.api.vo.Result;
 import com.jero.common.api.vo.ResultCommon;
 import com.jero.common.constant.CommonConstant;
 import com.jero.common.constant.enums.YesOrNoEnum;
@@ -30,6 +31,7 @@ import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
+import java.sql.SQLSyntaxErrorException;
 import java.util.Date;
 import java.util.List;
 
@@ -106,7 +108,6 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 			if (dbFieldName.length() > 64){
 				throw new JeroBootException(ResultCommon.TAG_ADD_ERROR_1,dbFieldName);
 			}
-
 		if (lawsTag1 != null){
 			executeDDL(lawsTag,"modify");
 		}else {
@@ -211,10 +212,25 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 		if (StringUtils.isNotBlank(dbFieldNameOld)){
 			sql = "alter table " + tableName + " change `" + dbFieldNameOld + "` `" + dbFieldName + "` " + type + " null comment '"+dbFieldTxt+"'";
 		}else {
+			// 验证字段是否存在
+			long l = lawsTagMapper.selectColumns(tableName,dbFieldName);
+			if(l > 0){
+				throw new JeroBootException(ResultCommon.TAG_EDIT_ERROR_2);
+			}
 			sql = "alter table " + tableName + " " + modifyOrAdd + " `" + dbFieldName + "` " + type + " null comment '"+dbFieldTxt+"'";
 		}
 
-		lawsTagMapper.executeDDL(sql);
+		try{
+			lawsTagMapper.executeDDL(sql);
+		} catch (Exception e) {
+			log.error(e.getMessage());
+			// 捕获所有的SQLException
+			if (e.getMessage().contains("java.sql.SQLSyntaxErrorException: Row size too large.")) {
+				// 判断是否为SQLSyntaxErrorException
+				throw new JeroBootException(ResultCommon.ROW_SIZE_TOO_LARGE);
+			}
+			throw new JeroBootException(ResultCommon.ERROR);
+		}
 	}
 
 	/**