添加生成唯一单据编号功能

src/main/java/com/jsh/erp/constants/BusinessConstants.java

@@ -61,6 +61,16 @@ public class BusinessConstants {
      * 批量插入sql时最大的数据条数
      * */
     public static final int BATCH_INSERT_MAX_NUMBER = 500;
+    /**
+     * sequence名称
+     * */
+    //sequence返回字符串的最小长度
+    public static final Long SEQ_TO_STRING_MIN_LENGTH = 1000000L;
+    //sequence长度小于基准长度时前追加基础值
+    public static final String SEQ_TO_STRING_LESS_INSERT = "0";
+    //单据编号
+    public static final String DEPOT_NUMBER_SEQ = "depot_number_seq";
+
 
 
 

src/main/java/com/jsh/erp/controller/DepotHeadController.java

@@ -77,7 +77,8 @@ public class DepotHeadController {
         BaseResponseInfo res = new BaseResponseInfo();
         Map<String, Object> map = new HashMap<String, Object>();
         try {
-            String number = depotHeadService.buildNumber(type, subType, beginTime, endTime);
+//            String number = depotHeadService.buildNumber(type, subType, beginTime, endTime);
+            String number = depotHeadService.buildOnlyNumber();
             map.put("DefaultNumber", number);
             res.code = 200;
             res.data = map;

src/main/java/com/jsh/erp/datasource/mappers/DepotHeadMapperEx.java

@@ -107,4 +107,9 @@ public interface DepotHeadMapperEx {
      * 更新单据主表信息
      * */
     void updatedepotHead(DepotHead depotHead);
+
+    /**
+     * 获得一个全局唯一的数作为订单号的追加
+     * */
+     Long  getBuildOnlyNumber(@Param("seq_name") String seq_name);
 }

src/main/java/com/jsh/erp/service/depotHead/DepotHeadService.java

@@ -20,6 +20,7 @@ import com.jsh.erp.service.supplier.SupplierService;
 import com.jsh.erp.service.user.UserService;
 import com.jsh.erp.utils.StringUtil;
 import com.jsh.erp.utils.Tools;
+import lombok.Synchronized;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.dao.DataAccessException;
@@ -153,6 +154,26 @@ public class DepotHeadService {
         example.createCriteria().andIdIn(ids);
         return depotHeadMapper.updateByExampleSelective(depotHead, example);
     }
+    /**
+     * 创建一个唯一的序列号
+     * */
+    public  String buildOnlyNumber(){
+        Long buildOnlyNumber=null;
+        synchronized (this){
+            buildOnlyNumber= depotHeadMapperEx.getBuildOnlyNumber(BusinessConstants.DEPOT_NUMBER_SEQ);
+        }
+        if(buildOnlyNumber<BusinessConstants.SEQ_TO_STRING_MIN_LENGTH){
+           StringBuffer sb=new StringBuffer(buildOnlyNumber.toString());
+           int len=BusinessConstants.SEQ_TO_STRING_MIN_LENGTH.toString().length()-sb.length();
+            for(int i=0;i<len;i++){
+                sb.insert(0,BusinessConstants.SEQ_TO_STRING_LESS_INSERT);
+            }
+            return sb.toString();
+        }else{
+            return buildOnlyNumber.toString();
+        }
+    }
+
 
     public String buildNumber(String type, String subType, String beginTime, String endTime) {
         String newNumber = "0001"; //新编号