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README.md

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+#springboot
+
+SpringBoot Web, JPA, DevTools,MySQL, Freemarker, Bootstrap 
+
+
+```MySQL
+load data local infile 'f:\321.csv' into table importexcel fields terminated by '\t';
+
+insert into sku (sku_barcode, sku_name, sku_spec, sku_unit) 
+select C2, C1, C5, C4  from importexcel
+ 
+ALTER TABLE `sku`
+ 	DROP INDEX `sku_barcode`,
+ 	ADD UNIQUE INDEX `sku_barcode` (`sku_barcode`);
+ 	
+select sku_barcode,min(id) from sku group by sku_barcode having count(*) > 1 	
+
+```