修改工具类

src/main/java/com/steerinfo/dil/util/DataChange.java

@@ -47,11 +47,13 @@ public class DataChange {
             }else{
                 String str = String.valueOf(data);
                 BigDecimal decimal = null;
-                try {
-                    decimal = new BigDecimal(str);
-                } catch (Exception e) {
-                    e.printStackTrace();
-                    return new BigDecimal(0);
+                if(!"".equals(str)){
+                    try {
+                        decimal = new BigDecimal(str);
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                        return new BigDecimal(0);
+                    }
                 }
                 return decimal;
             }