方式一：SQL語句

SQL拼接

StringBuffer sql = new StringBuffer("SELECT b.id, b.jd, b.wd, b.`name`, b.address, b.agree_count, b.flower_count, b.egg_count, b.discuss_count, b.membership_count, b.sale_info, b.pics, ");

sql.append(" round( 6378.138 * 2 * asin( sqrt( pow( sin((b.wd * pi() / 180 - ");
sql.append(wd);
sql.append(" * pi() / 180 ) / 2 ), 2 ) + cos(b.wd

* pi() / 180) * cos(");
sql.append(wd);
sql.append(" * pi() / 180) * pow( sin(( b.jd * pi() / 180 -");
sql.append(jd);
sql.append(" * pi() / 180 ) / 2 ), 2 ))) * 1000 ) AS distance");

sql.append(" FROM `business` b");

SQL語句如下：

SELECT b.id, b.jd, b.wd, b.`name`, b.address, b.agree_count, b.flower_count, b.egg_count, b.discuss_count, b.membership_count, b.sale_info, b.pics, round( 6378.138 * 2 * asin( sqrt( pow( sin(( b.wd * pi() / 180 - 30.544969 * pi() / 180 ) / 2 ), 2 ) + cos(b.wd * pi() / 180) * cos(30.544969 * pi() / 180) * pow( sin(( b.jd * pi() / 180 - 104.062414 * pi() / 180 ) / 2 ), 2 ))) * 1000 ) AS distance

FROM `business` b WHERE 1 = 1 ORDER BY distance ASC LIMIT 0, 100

方式二：百度定位SDK

// 【注意引數的順序：緯度、經度】當前位置距離店家的距離 LatLng(double latitude, double longitude)
LatLng startLocation = new LatLng(currentLatitude, currentLongitude);// 當前位置(起)
LatLng endLocation   = new LatLng(Double.parseDouble(sale.wd), Double.parseDouble(sale.jd));// 目標位置(止)

Double distance

= DistanceUtil.getDistance(endLocation, startLocation);// 距離