解决条码查询报错的bug

jshERP-boot/src/main/java/com/jsh/erp/datasource/mappers/MaterialMapperEx.java

@@ -98,7 +98,7 @@ public interface MaterialMapperEx {
 
     List<Material> getMaterialListByUnitIds(@Param("unitIds") String[] unitIds);
 
-    String getMaxBarCode();
+    List<String> getBarCodeList();
 
     List<MaterialVo4Unit> getMaterialByMeId(
             @Param("meId") Long meId);

jshERP-boot/src/main/java/com/jsh/erp/service/MaterialService.java

@@ -1307,12 +1307,15 @@ public class MaterialService {
     }
 
     public String getMaxBarCode() {
-        String maxBarCodeOld = materialMapperEx.getMaxBarCode();
-        if(StringUtil.isNotEmpty(maxBarCodeOld)) {
-            return Long.parseLong(maxBarCodeOld)+"";
-        } else {
-            return "1000";
-        }
+        List<String> barCodeOldList = materialMapperEx.getBarCodeList();
+        // 使用 Stream API 处理条码列表
+        OptionalLong maxBarcode = barCodeOldList.stream()
+                .filter(StringUtil::isNumeric)   // 过滤掉非数字条码
+                .mapToLong(Long::parseLong)      // 将字符串转换为 Long 类型
+                .max();                          // 获取最大值
+        // 如果存在最大值，返回它；否则返回 1000L
+        Long maxBarCodeOld = maxBarcode.orElse(1000L);
+        return maxBarCodeOld + "";
     }
 
     public List<String> getMaterialNameList() {

jshERP-boot/src/main/java/com/jsh/erp/utils/StringUtil.java

@@ -444,4 +444,17 @@ public class StringUtil {
         return originStr.replaceAll("(?i)" + regex, "");
     }
 
+    /**
+     * 判断字符串是否为纯数字
+     * @param str 输入的字符串
+     * @return 如果字符串为纯数字，返回 true；否则返回 false
+     */
+    public static boolean isNumeric(String str) {
+        if (str == null || str.isEmpty()) {
+            return false;
+        }
+        // 使用正则表达式判断字符串是否为纯数字
+        return str.matches("\\d+");
+    }
+
 }

jshERP-boot/src/main/resources/mapper_xml/MaterialMapperEx.xml

@@ -524,10 +524,9 @@
         and ifnull(delete_flag,'0') !='1'
     </select>
 
-    <select id="getMaxBarCode" resultType="java.lang.String">
-        select max(CAST(me.bar_code AS SIGNED)) bar_code from jsh_material_extend me
-        where 1=1
-        and ifnull(me.delete_Flag,'0') !='1'
+    <select id="getBarCodeList" resultType="java.lang.String">
+        select me.bar_code from jsh_material_extend me
+        where ifnull(me.delete_Flag,'0') !='1'
     </select>
 
     <select id="getMaterialByMeId" parameterType="com.jsh.erp.datasource.entities.MaterialExample" resultMap="ResultMapList">
@@ -790,4 +789,5 @@
         and ifnull(m.delete_flag,'0') !='1'
         limit 0,1
     </select>
+
 </mapper>