方案1通过 SQL 语句查询，数据库 ： mysqlER 图查询语句： SELECT *
FROM city c2
WHERE (lat > 28.10656 - 1
AND lat < 28.10656 + 1
AND lon > 114.4458 - 1
AND lon < 114.4458 + 1)
ORDER BY ACOS(SIN(2...
1.Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sword' defined in class path resource [Demo/applicationContext.xml]: BeanPostPro...
mysql 更新单条数据update set table1 name = xxx where id =1mysql 更新多条数据UPDATE table1
SET name = CASE id
WHEN 1 THEN xxx1
WHEN 2 THEN xxx2
WHEN 3 THEN xxx3
END
WHERE id IN ...