baidu_33680854
baidu_33680854
2016-01-08 14:29

百度地图从MySql中获取经纬度

  • 百度
  • mysql
  • 数据库

<%@ page contentType="text/html; charset=utf-8" %>

<%@ page language="java" %>

<%@ page import="com.mysql.jdbc.Driver" %>

<%@ page import="java.sql.*" %>

<%
String driverName="com.mysql.jdbc.Driver";//驱动程序名
String userName="root";//数据库用户名
String userPasswd="qwe";//密码
String dbName="test";//数据库名
String tableName="location";//表名
//联结字符串
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection=DriverManager.getConnection(url);
Statement statement = connection.createStatement();
String sql="SELECT * FROM "+tableName;
ResultSet rs = statement.executeQuery(sql);
int size = rs.getRow();//数据行数
ResultSetMetaData rmeta = rs.getMetaData();//获得数据结果集合
int numColumns=rmeta.getColumnCount();//确定数据集的列数,亦字段数
//输出每一个数据值
out.print(size+" ");
out.print("
");
while(rs.next()) {
out.print(rs.getString(1)+" ");//编号
out.print("|");
Double point1=rs.getDouble(4);
Double point2=rs.getDouble(3);
out.print(point1+" ");//输出经度
out.print(point2+" ");//输出纬度
out.print("
");
}
%>

<!DOCTYPE html>

body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;} #l-map{height:100%;width:78%;float:left;border-right:2px solid #bcbcbc;} #r-result{height:100%;width:20%;float:left;}

折线

var map = new BMap.Map("allmap"); var point = new BMap.Point(113.001,28.23540605); var p=document.from1.myhidden.value; map.centerAndZoom(point, 13); var polyline = new BMap.Polyline([ new BMap.Point(113.0051,28.2334), new BMap.Point(113.0031,28.2322), new BMap.Point(113.0041,28.23241) ], {strokeColor:"blue", strokeWeight:6, strokeOpacity:0.5});//这里的坐标需要从数据库获取!! 卡在这里了 map.addOverlay(polyline);


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