前言
在数字化时代,地理信息系统(GIS)技术与现代交通出行需求的深度融合催生了诸多创新应用。驾车路线规划作为日常出行的关键服务,其重要性愈发凸显。基于 GeoTools 和 SpringBoot 的省域驾车最快路线生成实践,汇聚了先进开源地理空间工具与高效微服务框架的优势,为解决大范围区域内复杂路况下的最优路线规划问题提供了思路。
本次实践聚焦于省域范围,相较于城市内部路线规划,省域内道路网络更为复杂,涵盖高速公路、国道等多种类型。通过驾车距离衡量与省会城市的联系度,可作为交通对地域经济影响的因素评估参考。
一、相关空间表简介及设计
本节介绍使用的基础空间表和用于存储省级城市距离的空间表信息。
1、相关基础空间表
查询省会城市和其他地级城市需要两张表:biz_geographic_name 表和 biz_city 城市信息表。通过省级行政区划代码找到城市信息。
CREATE TABLE "public"."biz_city" (
"id" int8 NOT NULL,
"province_code" varchar(16) COLLATE "pg_catalog"."default" NOT NULL,
"province_name" varchar(64) COLLATE "pg_catalog"."default" NOT NULL,
"city_code" varchar(16) COLLATE "pg_catalog"."default" NOT NULL,
"city_name" varchar(512) COLLATE "pg_catalog"."default" NOT NULL,
"type" varchar(32) COLLATE "pg_catalog"."default",
"geom" "public"."geometry",
CONSTRAINT "pk_biz_city" PRIMARY KEY ("id")
);
CREATE INDEX "idx_biz_city_citycode" ON "public"."biz_city" USING btree ("city_code" COLLATE "pg_catalog"."default" "pg_catalog"."text_ops" ASC NULLS LAST);
CREATE INDEX "idx_biz_city_pcode" ON "public"."biz_city" USING btree ("province_code" COLLATE "pg_catalog"."default" "pg_catalog"."text_ops" );
COMMENT "public"."biz_city"."id" ;
COMMENT "public"."biz_city"."province_code" ;
COMMENT "public"."biz_city"."province_name" ;
COMMENT "public"."biz_city"."city_code" ;
COMMENT "public"."biz_city"."city_name" ;
COMMENT "public"."biz_city"."type" ;
COMMENT "public"."biz_city"."geom" ;
"public"."biz_geographic_name" (
"pk_id" int8 ,
"name" () "pg_catalog"."default" ,
"pinyin" () "pg_catalog"."default",
"classz" () "pg_catalog"."default",
"bz" () "pg_catalog"."default",
"slx" () "pg_catalog"."default",
"geom" "public"."geometry" ,
"pk_biz_geographic_name" ("pk_id")
);
INDEX "idex_biz_geographic_name_classz" "public"."biz_geographic_name" btree ("classz" "pg_catalog"."default" "pg_catalog"."text_ops" );
INDEX "idx_biz_geographic_name_geom" "public"."biz_geographic_name" gist ("geom" "public"."gist_geometry_ops_2d");
COMMENT "public"."biz_geographic_name"."pk_id" ;
COMMENT "public"."biz_geographic_name"."name" ;
COMMENT "public"."biz_geographic_name"."pinyin" ;
COMMENT "public"."biz_geographic_name"."classz" ;
COMMENT "public"."biz_geographic_name"."bz" ;
COMMENT "public"."biz_geographic_name"."slx" ;
COMMENT "public"."biz_geographic_name"."geom" ;
COMMENT "public"."biz_geographic_name" ;






