需求：从steam官网获取英雄数据，即为Json数据，并导入到本地数据库
Json数据是这样的
{ "result": { "heroes": [ { "name": "npc_dota_hero_antimage", "id": 1, "localized_name": "Anti-Mage" }, { "name": "npc_dota_hero_axe", "id": 2, "localized_name": "Axe" }, { "name": "npc_dota_hero_bane", "id": 3, "localized_name": "Bane" }, { "name": "npc_dota_hero_bloodseeker", "id": 4, "localized_name": "Bloodseeker" }, { "name": "npc_dota_hero_crystal_maiden", "id": 5, "localized_name": "Crystal Maiden" }, { "name": "npc_dota_hero_drow_ranger", "id": 6, "localized_name": "Drow Ranger" }, { "name": "npc_dota_hero_earthshaker", "id": 7, "localized_name": "Earthshaker" }, { "name": "npc_dota_hero_juggernaut", "id": 8, "localized_name": "Juggernaut" }, { "name": "npc_dota_hero_mirana", "id": 9, "localized_name": "Mirana" }, { "name": "npc_dota_hero_nevermore", "id": 11, "localized_name": "Shadow Fiend" }, { "name": "npc_dota_hero_morphling", "id": 10, "localized_name": "Morphling" }, { "name": "npc_dota_hero_phantom_lancer", "id": 12, "localized_name": "Phantom Lancer" }, { "name": "npc_dota_hero_puck", "id": 13, "localized_name": "Puck" }, { "name": "npc_dota_hero_pudge", "id": 14, "localized_name": "Pudge" }, { "name": "npc_dota_hero_razor", "id": 15, "localized_name": "Razor" }, { "name": "npc_dota_hero_sand_king", "id": 16, "localized_name": "Sand King" }, { "name": "npc_dota_hero_storm_spirit", "id": 17, "localized_name": "Storm Spirit" }, { "name": "npc_dota_hero_sven", "id": 18, "localized_name": "Sven" }, { "name": "npc_dota_hero_tiny", "id": 19, "localized_name": "Tiny" }, { "name": "npc_dota_hero_vengefulspirit", "id": 20, "localized_name": "Vengeful Spirit" }, { "name": "npc_dota_hero_windrunner", "id": 21, "localized_name": "Windranger" }, { "name": "npc_dota_hero_zuus", "id": 22, "localized_name": "Zeus" }, { "name": "npc_dota_hero_kunkka", "id": 23, "localized_name": "Kunkka" }, { "name": "npc_dota_hero_lina", "id": 25, "localized_name": "Lina" }, { "name": "npc_dota_hero_lich", "id": 31, "localized_name": "Lich" }, { "name": "npc_dota_hero_lion", "id": 26, "localized_name": "Lion" }, { "name": "npc_dota_hero_shadow_shaman", "id": 27, "localized_name": "Shadow Shaman" }, { "name": "npc_dota_hero_slardar", "id": 28, "localized_name": "Slardar" }, { "name": "npc_dota_hero_tidehunter", "id": 29, "localized_name": "Tidehunter" }, { "name": "npc_dota_hero_witch_doctor", "id": 30, "localized_name": "Witch Doctor" }, { "name": "npc_dota_hero_riki", "id": 32, "localized_name": "Riki" }, { "name": "npc_dota_hero_enigma", "id": 33, "localized_name": "Enigma" }, { "name": "npc_dota_hero_tinker", "id": 34, "localized_name": "Tinker" }, { "name": "npc_dota_hero_sniper", "id": 35, "localized_name": "Sniper" }, { "name": "npc_dota_hero_necrolyte", "id": 36, "localized_name": "Necrophos" }, { "name": "npc_dota_hero_warlock", "id": 37, "localized_name": "Warlock" }, { "name": "npc_dota_hero_beastmaster", "id": 38, "localized_name": "Beastmaster" }, { "name": "npc_dota_hero_queenofpain", "id": 39, "localized_name": "Queen of Pain" }, { "name": "npc_dota_hero_venomancer", "id": 40, "localized_name": "Venomancer" }, { "name": "npc_dota_hero_faceless_void", "id": 41, "localized_name": "Faceless Void" }, { "name": "npc_dota_hero_skeleton_king", "id": 42, "localized_name": "Wraith King" }, { "name": "npc_dota_hero_death_prophet", "id": 43, "localized_name": "Death Prophet" }, { "name": "npc_dota_hero_phantom_assassin", "id": 44, "localized_name": "Phantom Assassin" }, { "name": "npc_dota_hero_pugna", "id": 45, "localized_name": "Pugna" }, { "name": "npc_dota_hero_templar_assassin", "id": 46, "localized_name": "Templar Assassin" }, { "name": "npc_dota_hero_viper", "id": 47, "localized_name": "Viper" }, { "name": "npc_dota_hero_luna", "id": 48, "localized_name": "Luna" }, { "name": "npc_dota_hero_dragon_knight", "id": 49, "localized_name": "Dragon Knight" }, { "name": "npc_dota_hero_dazzle", "id": 50, "localized_name": "Dazzle" }, { "name": "npc_dota_hero_rattletrap", "id": 51, "localized_name": "Clockwerk" }, { "name": "npc_dota_hero_leshrac", "id": 52, "localized_name": "Leshrac" }, { "name": "npc_dota_hero_furion", "id": 53, "localized_name": "Nature's Prophet" }, { "name": "npc_dota_hero_life_stealer", "id": 54, "localized_name": "Lifestealer" }, { "name": "npc_dota_hero_dark_seer", "id": 55, "localized_name": "Dark Seer" }, { "name": "npc_dota_hero_clinkz", "id": 56, "localized_name": "Clinkz" }, { "name": "npc_dota_hero_omniknight", "id": 57, "localized_name": "Omniknight" }, { "name": "npc_dota_hero_enchantress", "id": 58, "localized_name": "Enchantress" }, { "name": "npc_dota_hero_huskar", "id": 59, "localized_name": "Huskar" }, { "name": "npc_dota_hero_night_stalker", "id": 60, "localized_name": "Night Stalker" }, { "name": "npc_dota_hero_broodmother", "id": 61, "localized_name": "Broodmother" }, { "name": "npc_dota_hero_bounty_hunter", "id": 62, "localized_name": "Bounty Hunter" }, { "name": "npc_dota_hero_weaver", "id": 63, "localized_name": "Weaver" }, { "name": "npc_dota_hero_jakiro", "id": 64, "localized_name": "Jakiro" }, { "name": "npc_dota_hero_batrider", "id": 65, "localized_name": "Batrider" }, { "name": "npc_dota_hero_chen", "id": 66, "localized_name": "Chen" }, { "name": "npc_dota_hero_spectre", "id": 67, "localized_name": "Spectre" }, { "name": "npc_dota_hero_doom_bringer", "id": 69, "localized_name": "Doom" }, { "name": "npc_dota_hero_ancient_apparition", "id": 68, "localized_name": "Ancient Apparition" }, { "name": "npc_dota_hero_ursa", "id": 70, "localized_name": "Ursa" }, { "name": "npc_dota_hero_spirit_breaker", "id": 71, "localized_name": "Spirit Breaker" }, { "name": "npc_dota_hero_gyrocopter", "id": 72, "localized_name": "Gyrocopter" }, { "name": "npc_dota_hero_alchemist", "id": 73, "localized_name": "Alchemist" }, { "name": "npc_dota_hero_invoker", "id": 74, "localized_name": "Invoker" }, { "name": "npc_dota_hero_silencer", "id": 75, "localized_name": "Silencer" }, { "name": "npc_dota_hero_obsidian_destroyer", "id": 76, "localized_name": "Outworld Devourer" }, { "name": "npc_dota_hero_lycan", "id": 77, "localized_name": "Lycan" }, { "name": "npc_dota_hero_brewmaster", "id": 78, "localized_name": "Brewmaster" }, { "name": "npc_dota_hero_shadow_demon", "id": 79, "localized_name": "Shadow Demon" }, { "name": "npc_dota_hero_lone_druid", "id": 80, "localized_name": "Lone Druid" }, { "name": "npc_dota_hero_chaos_knight", "id": 81, "localized_name": "Chaos Knight" }, { "name": "npc_dota_hero_meepo", "id": 82, "localized_name": "Meepo" }, { "name": "npc_dota_hero_treant", "id": 83, "localized_name": "Treant Protector" }, { "name": "npc_dota_hero_ogre_magi", "id": 84, "localized_name": "Ogre Magi" }, { "name": "npc_dota_hero_undying", "id": 85, "localized_name": "Undying" }, { "name": "npc_dota_hero_rubick", "id": 86, "localized_name": "Rubick" }, { "name": "npc_dota_hero_disruptor", "id": 87, "localized_name": "Disruptor" }, { "name": "npc_dota_hero_nyx_assassin", "id": 88, "localized_name": "Nyx Assassin" }, { "name": "npc_dota_hero_naga_siren", "id": 89, "localized_name": "Naga Siren" }, { "name": "npc_dota_hero_keeper_of_the_light", "id": 90, "localized_name": "Keeper of the Light" }, { "name": "npc_dota_hero_wisp", "id": 91, "localized_name": "Io" }, { "name": "npc_dota_hero_visage", "id": 92, "localized_name": "Visage" }, { "name": "npc_dota_hero_slark", "id": 93, "localized_name": "Slark" }, { "name": "npc_dota_hero_medusa", "id": 94, "localized_name": "Medusa" }, { "name": "npc_dota_hero_troll_warlord", "id": 95, "localized_name": "Troll Warlord" }, { "name": "npc_dota_hero_centaur", "id": 96, "localized_name": "Centaur Warrunner" }, { "name": "npc_dota_hero_magnataur", "id": 97, "localized_name": "Magnus" }, { "name": "npc_dota_hero_shredder", "id": 98, "localized_name": "Timbersaw" }, { "name": "npc_dota_hero_bristleback", "id": 99, "localized_name": "Bristleback" }, { "name": "npc_dota_hero_tusk", "id": 100, "localized_name": "Tusk" }, { "name": "npc_dota_hero_skywrath_mage", "id": 101, "localized_name": "Skywrath Mage" }, { "name": "npc_dota_hero_abaddon", "id": 102, "localized_name": "Abaddon" }, { "name": "npc_dota_hero_elder_titan", "id": 103, "localized_name": "Elder Titan" }, { "name": "npc_dota_hero_legion_commander", "id": 104, "localized_name": "Legion Commander" }, { "name": "npc_dota_hero_ember_spirit", "id": 106, "localized_name": "Ember Spirit" }, { "name": "npc_dota_hero_earth_spirit", "id": 107, "localized_name": "Earth Spirit" }, { "name": "npc_dota_hero_terrorblade", "id": 109, "localized_name": "Terrorblade" }, { "name": "npc_dota_hero_phoenix", "id": 110, "localized_name": "Phoenix" }, { "name": "npc_dota_hero_oracle", "id": 111, "localized_name": "Oracle" }, { "name": "npc_dota_hero_techies", "id": 105, "localized_name": "Techies" }, { "name": "npc_dota_hero_winter_wyvern", "id": 112, "localized_name": "Winter Wyvern" }, { "name": "npc_dota_hero_arc_warden", "id": 113, "localized_name": "Arc Warden" }, { "name": "npc_dota_hero_abyssal_underlord", "id": 108, "localized_name": "Underlord" }, { "name": "npc_dota_hero_monkey_king", "id": 114, "localized_name": "Monkey King" }, { "name": "npc_dota_hero_pangolier", "id": 120, "localized_name": "Pangolier" }, { "name": "npc_dota_hero_dark_willow", "id": 119, "localized_name": "Dark Willow" } ], "status": 200, "count": 115 }}
我们用这个封装方法来解析Json数组
public staticList getObjectList(String jsonString,Class cls){ List list = new ArrayList (); try { Gson gson = new Gson(); JsonArray arry = new JsonParser().parse(jsonString).getAsJsonArray(); for (JsonElement jsonElement : arry) { list.add(gson.fromJson(jsonElement, cls)); } } catch (Exception e) { e.printStackTrace(); } return list; }
用这个方法来对URL进行解析和设置
public static String getUrlForHero(String strURL) throws IOException { URL url = new URL(strURL); HttpURLConnection httpConn = (HttpURLConnection) url.openConnection(); httpConn.setRequestMethod("GET"); httpConn.connect(); BufferedReader reader = new BufferedReader(new InputStreamReader( httpConn.getInputStream())); String line; StringBuffer buffer = new StringBuffer(); while ((line = reader.readLine()) != null) { buffer.append(line); } reader.close(); httpConn.disconnect(); String result = new String(buffer.substring(20,buffer.length()-27));//这里把不用的数据去掉,保留heroes之后的数组，status,count不要。 //JSONArray jsonArray = JSONArray.fromObject(result); return result; }
最后这样调用
private void addHeroFromSteamAPI() throws IOException { String jsonArray = URLUtil.getUrlForHero("https://api.steampowered.com/IEconDOTA2_570/GetHeroes/v1/?key=id&format=json&language=Chinese"); List heroes = GsonUtil.getObjectList(jsonArray,Hero.class); for (Hero hero:heroes){ HeroBean heroBean = new HeroBean(); heroBean.setId(hero.getId()); heroBean.setName(hero.getName()); heroBean.setLocalizedName(hero.getLocalized_name()); heroService.addHeroFromSteamAPI(heroBean); } }