java项目web.xml配置文件中的“web-app“标签标红问题的解决方案

原创 已于 2022-04-05 12:13:05 修改 · 1.6k 阅读 · 0 ·
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#java #spring #maven

于 2022-04-05 12:10:13 首次发布
本文档解析了在Java项目中遇到的web.xml配置错误提示，指出错误源于标签顺序不符合web-app_2_3.dtd规范。解决方案是遵循该规范调整标签顺序。了解并遵循正确的配置顺序对于理解Java Web技术至关重要。

在java项目中的web.xml配置文件中出现如上图所示的错误提示时：要小心啦！

错误的原因是：web.xml中所设置的标签顺序不符合web-app头信息的规范。
所谓的web.xml头部配置：

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

web.xml的配置要严格遵守规范的。如上图所示描述了web-app_2_3.dtd的规范引入，所以在配置此web.xml文件的内容时要严格遵守规范，所谓规范就是web.xml中的标签顺序有着严格的设定。需要按照顺序对标签进行引用。

解决方案：

1.按照引入的web-app_2_3.dtd规范文档内容将标签的顺序调整正确吗，问题就会解决。

2.对引入的web-app_2_3.dtd规范文档进行注释掉，这样做的话治标不治本，想多了解jav技术的还是推荐第一种方案。

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return; } // ✅ 将新任务赋值给 pendingRequest[0] pendingRequest[0] = () -> { String keyword = s.toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; String explicitCity = parsed.targetCity; // 如果指定了城市，则不走 suggestHelper if (!explicitCity.isEmpty()) { new Handler(Looper.getMainLooper()).post(() -> searchInput.setAdapter(null)); return; } suggestHelper.setCurrentCity(currentCity); suggestHelper.requestSuggestions(searchKeyword); }; handler.postDelayed(pendingRequest[0], 300); } @Override public void afterTextChanged(Editable s) {} }); // 回车和按钮事件保持不变 searchInput.setOnEditorActionListener((v, actionId, event) -> { if ((actionId & EditorInfo.IME_MASK_ACTION) == EditorInfo.IME_ACTION_SEARCH) { searchBtn.performClick(); return true; } return false; }); searchBtn.setOnClickListener(v -> { String keyword = searchInput.getText().toString().trim(); if (!keyword.isEmpty()) { performSearch(keyword); } else { Toast.makeText(this, "请输入关键词", Toast.LENGTH_SHORT).show(); } }); } private void performSearchWithKeyword(String keyword) { searchInput.setText(keyword); searchInput.clearFocus(); searchBtn.performClick(); } private void performSearch(String keyword) { if (keyword.isEmpty()) return; // 【重置状态】清空缓存数据 nationalResults.clear(); localResults.clear(); nearbyResults.clear(); isNearbyLoaded = false; isInNearbyMode = false; btnToggleMode.setText("📍 附近"); emptyView.setText("🔍 搜索中..."); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); // ✅【核心修改】不再使用正则自动识别，完全由 searchType 控制行为 if (searchType == 1) { // 🔧 进入纯线路模式 doLineModeSearch(keyword); return; // 提前返回，不执行下面的普通搜索逻辑 } // ❌ 原有普通搜索逻辑保持不变（全国+本地合并） CityManager.ParsedQuery parsed = CityManager.parse(keyword); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; String explicitCity = parsed.targetCity; if (!explicitCity.isEmpty()) { PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", explicitCity); query.setPageSize(20); try { PoiSearch search = new PoiSearch(this, query); search.setOnPoiSearchListener(this); search.searchPOIAsyn(); } catch (Exception e) { Toast.makeText(this, "搜索失败", Toast.LENGTH_SHORT).show(); } } else { nationalResults.clear(); localResults.clear(); PoiSearch.Query nationalQuery = new PoiSearch.Query(searchKeyword, "", ""); nationalQuery.setPageSize(20); try { PoiSearch nationalSearch = new PoiSearch(this, nationalQuery); nationalSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null) { nationalResults.clear(); nationalResults.addAll(result.getPois()); } requestLocalSearch(searchKeyword); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); nationalSearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); requestLocalSearch(searchKeyword); } } } /** * ✅【新增】纯线路模式搜索 * 功能： * - 搜索包含“站”字的相关 POI * - 分页加载确保完整性 * - 过滤非站点类结果 * - 排序后绘制线路和站点标记 */ private void doLineModeSearch(String keyword) { // ✅ 提取数字作为主关键词（如“4号线”） String numberPart = keyword.replaceAll("[^\\d]", ""); String baseKeyword = numberPart.isEmpty() ? keyword : numberPart + "号线"; // ✅ 判断 POI 类型 String poiType = ""; if (keyword.contains("地铁") || keyword.contains("轨道")) { poiType = "subway"; } else if (keyword.contains("公交")) { poiType = "bus_station"; } else if (keyword.contains("轻轨")) { poiType = "light_rail"; } else if (keyword.contains("云巴")) { poiType = "bus_station"; } // ✅ 构造查询 PoiSearch.Query query = new PoiSearch.Query(baseKeyword, poiType, currentCity); query.setPageSize(50); // 高分页数 query.setPageNum(0); try { PoiSearch search = new PoiSearch(this, query); search.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { private final List<PoiItem> allStations = new ArrayList<>(); @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null) { List<PoiItem> pageItems = result.getPois(); for (PoiItem item : pageItems) { // ✅【严格过滤】只保留标题中含“站”的 POI（排除A出口/B口/便利店等） if (item.getTitle().contains("站")) { allStations.add(item); } } // ✅ 分页加载直到最后一页 if (result.getPageCount() > query.getPageNum() + 1) { query.setPageNum(query.getPageNum() + 1); try { PoiSearch nextSearch = new PoiSearch(SearchResultActivity.this, query); nextSearch.setOnPoiSearchListener(this); nextSearch.searchPOIAsyn(); } catch (Exception e) { finishLineSearch(allStations); } } else { finishLineSearch(allStations); } } else { emptyView.setText("⚠️ 未找到相关线路站点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} // ✅【完成搜索】去重、排序、更新 UI 和地图 private void finishLineSearch(List<PoiItem> stations) { if (stations.isEmpty()) { emptyView.setText("⚠️ 未找到相关站点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); return; } // ✅ 去重：基于 POI ID Set<String> seen = new HashSet<>(); List<PoiItem> uniqueStations = new ArrayList<>(); for (PoiItem item : stations) { if (seen.add(item.getPoiId())) { uniqueStations.add(item); } } // ✅ 按站号排序（尝试提取数字） uniqueStations.sort((a, b) -> { int numA = extractNumber(a.getTitle()); int numB = extractNumber(b.getTitle()); if (numA != -1 && numB != -1) { return Integer.compare(numA, numB); } return a.getTitle().compareTo(b.getTitle()); }); // ✅ 更新列表（仅显示站点） updateResultList(uniqueStations); // ✅ 绘制线路图（重点功能） drawLineRouteOnMap(uniqueStations); } }); search.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); emptyView.setText("⚠️ 线路搜索异常"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } // ✅ 提取字符串中的第一个整数（用于排序） private int extractNumber(String s) { try { return Integer.parseInt(s.replaceAll("\\D+", "")); } catch (NumberFormatException e) { return -1; } } /** * ✅ 使用首尾站发起公交路线请求，绘制线路 + 所有站点打点 */ private void drawLineRouteOnMap(List<PoiItem> stations) { if (stations.isEmpty()) return; // ✅ 清空地图 aMap.clear(); // ✅ 添加所有站点为红色小圆点标记 for (PoiItem station : stations) { LatLonPoint point = station.getLatLonPoint(); if (point == null) continue; aMap.addMarker(new MarkerOptions() .position(new LatLng(point.getLatitude(), point.getLongitude())) .title(station.getTitle()) .icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_station_dot)) // 小红点图标 ); } // ✅ 如果只有一个站，则聚焦即可 if (stations.size() < 2) { PoiItem only = stations.get(0); LatLonPoint p = only.getLatLonPoint(); if (p != null) { aMap.animateCamera(CameraUpdateFactory.newLatLngZoom( new LatLng(p.getLatitude(), p.getLongitude()), 14f)); } return; } // ✅ 取首尾站发起公交路线请求以获取真实路径 PoiItem startStation = stations.get(0); PoiItem endStation = stations.get(stations.size() - 1); LatLonPoint start = startStation.getLatLonPoint(); LatLonPoint end = endStation.getLatLonPoint(); if (start == null || end == null) return; RouteSearch routeSearch = new RouteSearch(this); RouteSearch.FromAndTo fromAndTo = new RouteSearch.FromAndTo(start, end); RouteSearch.BusRouteQuery query = new RouteSearch.BusRouteQuery(fromAndTo, RouteSearch.BUS_DEFAULT, currentCity, 0); routeSearch.setRouteSearchListener(new RouteSearch.OnRouteSearchListener() { @Override public void onBusRouteSearched(BusRouteResult result, int rCode) { if (rCode == 1000 && result != null && !result.getPaths().isEmpty()) { BusPath path = result.getPaths().get(0); List<LatLng> points = new ArrayList<>(); for (BusStep step : path.getSteps()) { if (step.getBusLines() != null && !step.getBusLines().isEmpty()) { List<LatLonPoint> linePoints = step.getBusLines().get(0).getPolyline(); for (LatLonPoint lp : linePoints) { points.add(new LatLng(lp.getLatitude(), lp.getLongitude())); } } } if (!points.isEmpty()) { PolylineOptions options = new PolylineOptions() .color(0xFFE91E63) // 粉色主线 .width(8f) .addAll(points); aMap.addPolyline(options); } } // ✅ 即使没拿到路线，也聚焦到站点区域 focusMapOnStations(stations); } @Override public void onDriveRouteSearched(com.amap.api.services.route.DriveRouteResult r, int c) {} @Override public void onWalkRouteSearched(com.amap.api.services.route.WalkRouteResult r, int c) {} @Override public void onRideRouteSearched(com.amap.api.services.route.RideRouteResult r, int c) {} }); routeSearch.calculateBusRouteAsyn(query); } /** * 聚焦地图到所有站点范围 */ private void focusMapOnStations(List<PoiItem> stations) { LatLngBounds.Builder builder = new LatLngBounds.Builder(); for (PoiItem s : stations) { LatLonPoint p = s.getLatLonPoint(); if (p != null) { builder.include(new LatLng(p.getLatitude(), p.getLongitude())); } } try { aMap.animateCamera(CameraUpdateFactory.newLatLngBounds(builder.build(), 100)); } catch (Exception e) { // bounds 可能太小或为空 } } private void fallbackToOriginalSearch(String keyword) { // 直接调用原搜索逻辑 CityManager.ParsedQuery parsed = CityManager.parse(keyword); String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; String explicitCity = parsed.targetCity; if (!explicitCity.isEmpty()) { PoiSearch.Query query = new PoiSearch.Query(searchKeyword, "", explicitCity); query.setPageSize(20); try { PoiSearch search = new PoiSearch(this, query); search.setOnPoiSearchListener(SearchResultActivity.this); search.searchPOIAsyn(); } catch (Exception e) { emptyView.setText("⚠️ 未找到相关地点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } else { nationalResults.clear(); localResults.clear(); PoiSearch.Query nationalQuery = new PoiSearch.Query(searchKeyword, "", ""); nationalQuery.setPageSize(20); try { PoiSearch ns = new PoiSearch(this, nationalQuery); ns.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null) { nationalResults.clear(); nationalResults.addAll(result.getPois()); } requestLocalSearch(searchKeyword); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); ns.searchPOIAsyn(); } catch (Exception e) { requestLocalSearch(searchKeyword); } } } private void requestLocalSearch(String keyword) { if (currentCity.isEmpty()) { showCombinedResults(); return; } PoiSearch.Query localQuery = new PoiSearch.Query(keyword, "", currentCity); localQuery.setPageSize(20); try { PoiSearch localSearch = new PoiSearch(this, localQuery); localSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000 && result != null && result.getPois() != null) { localResults.clear(); localResults.addAll(result.getPois()); } showCombinedResults(); } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); localSearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); showCombinedResults(); } } /** * 排序规则： * 1. 核心关键词匹配度最高优先 * 2. 若匹配度相同 → 本市结果优先 * 3. 高匹配度全国结果可排在低匹配度本地结果前 */ private void showCombinedResults() { String keyword = searchInput.getText().toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); final String coreKeyword = (parsed.keyword.isEmpty() ? keyword : parsed.keyword).toLowerCase().trim(); Set<String> seen = new HashSet<>(); List<PoiItem> combined = new ArrayList<>(); // 合并去重 for (PoiItem item : localResults) { if (seen.add(item.getPoiId())) { combined.add(item); } } for (PoiItem item : nationalResults) { if (seen.add(item.getPoiId())) { combined.add(item); } } // ✅ 排序：使用 final 变量，并将评分逻辑封装在局部 final 引用中 final String finalCoreKeyword = coreKeyword; combined.sort((a, b) -> { int scoreA = calculateMatchScore(a.getTitle(), finalCoreKeyword); int scoreB = calculateMatchScore(b.getTitle(), finalCoreKeyword); if (scoreA != scoreB) { return Integer.compare(scoreB, scoreA); // 高分优先 } boolean aIsLocal = isSameCity(getDisplayCity(a), currentCity); boolean bIsLocal = isSameCity(getDisplayCity(b), currentCity); if (aIsLocal && !bIsLocal) return -1; if (!aIsLocal && bIsLocal) return 1; return 0; }); adapter.clearExtraText(); for (PoiItem item : combined) { String city = getDisplayCity(item); adapter.setExtraText(item, " | " + city); } updateResultList(combined); } /** * 计算标题与关键词的核心匹配得分 * 规则： * - 完全包含关键词：+50 * - 开头匹配加分 * - 分词命中加分 */ private int calculateMatchScore(String title, String keyword) { if (title == null || keyword == null || title.isEmpty() || keyword.isEmpty()) { return 0; } title = title.toLowerCase(); int score = 0; // 完整包含关键词 if (title.contains(keyword)) { score += 50; // 越靠前分越高 int index = title.indexOf(keyword); if (index == 0) score += 20; else if (index < 4) score += 10; } // 分词命中（如“北京 大学”拆开都出现） String[] words = keyword.split("\\s+"); int matchCount = 0; for (String word : words) { if (word.length() > 1 && title.contains(word)) { matchCount++; } } if (matchCount == words.length) { score += 30; // 全部命中 } else { score += matchCount * 8; // 部分命中也有分 } return score; } private String getDisplayCity(PoiItem item) { if (item == null) return "未知城市"; String city = item.getCityName(); if (city != null && !city.isEmpty() && !city.equals("[]")) { return city; } String adName = item.getAdName(); if (adName != null && !adName.isEmpty() && !adName.equals("[]")) { return adName; } String province = item.getProvinceName(); if (province != null && !province.isEmpty()) { return province; } return "未知城市"; } private void enterNearbyMode() { if (!isLocationReady) { Toast.makeText(this, "正在获取位置...", Toast.LENGTH_SHORT).show(); return; } String keyword = searchInput.getText().toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); String explicitCity = parsed.targetCity; String searchKeyword = parsed.keyword.isEmpty() ? keyword : parsed.keyword; // 🔴【关键】如果指定城市非当前城市，则禁止 nearby if (!explicitCity.isEmpty() && !isSameCity(explicitCity, currentCity)) { nearbyResults.clear(); localResults.clear(); nationalResults.clear(); poiList.clear(); adapter.notifyDataSetChanged(); emptyView.setText("📍 所选城市非当前所在城市\n无法搜索附近"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); isInNearbyMode = false; return; } // 只有同城才允许加载 nearby if (!isNearbyLoaded) { startNearbySearch(searchKeyword); } else { showNearbyResults(); } isInNearbyMode = true; btnToggleMode.setText("🌐 全范围"); } private boolean isSameCity(String city1, String city2) { if (city1 == null || city2 == null) return false; String c1 = city1.endsWith("市") ? city1.substring(0, city1.length() - 1) : city1; String c2 = city2.endsWith("市") ? city2.substring(0, city2.length() - 1) : city2; return c1.equals(c2); } private void exitNearbyMode() { showCombinedResults(); isInNearbyMode = false; btnToggleMode.setText("📍 附近"); } // ✅【重点增强】增加内部防护 private void startNearbySearch(String keyword) { String rawKeyword = searchInput.getText().toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(rawKeyword); String explicitCity = parsed.targetCity; // 🔒 再次检查是否跨城（防御性编程） if (!explicitCity.isEmpty() && !isSameCity(explicitCity, currentCity)) { Log.w("SearchResult", "拒绝发起跨城 nearby 搜索: " + explicitCity); emptyView.setText("📍 所选城市非当前所在城市\n无法搜索附近"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); return; } LatLonPoint center = new LatLonPoint(myCurrentLat, myCurrentLng); PoiSearch.Query query = new PoiSearch.Query(keyword, "", ""); query.setPageSize(20); try { PoiSearch nearbySearch = new PoiSearch(this, query); nearbySearch.setBound(new PoiSearch.SearchBound(center, 3000)); nearbySearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult res, int code) { if (code == 1000 && res != null && res.getPois() != null && !res.getPois().isEmpty()) { nearbyResults.clear(); nearbyResults.addAll(sortByDistance(res.getPois(), myCurrentLat, myCurrentLng)); isNearbyLoaded = true; showNearbyResults(); } else { emptyView.setText("⚠️ 附近未找到地点"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} }); nearbySearch.searchPOIAsyn(); } catch (Exception e) { e.printStackTrace(); emptyView.setText("⚠️ 附近搜索失败"); emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } private void showNearbyResults() { List<PoiItem> list = new ArrayList<>(nearbyResults); adapter.clearExtraText(); LatLng me = new LatLng(myCurrentLat, myCurrentLng); for (PoiItem item : nearbyResults) { double dist = com.amap.api.maps.AMapUtils.calculateLineDistance(toLatLng(item.getLatLonPoint()), me); String distText = dist < 1000 ? ((int) dist) + "m" : String.format("%.1fkm", dist / 1000); adapter.setExtraText(item, " | " + distText); } updateResultList(list); } private void onPoiItemSelected(PoiItem item) { LatLng latLng = new LatLng(item.getLatLonPoint().getLatitude(), item.getLatLonPoint().getLongitude()); if (selectedMarker != null) { selectedMarker.remove(); selectedMarker = null; } selectedMarker = aMap.addMarker(new MarkerOptions() .position(latLng) .title("终点：" + item.getTitle()) .icon(com.amap.api.maps.model.BitmapDescriptorFactory.defaultMarker( com.amap.api.maps.model.BitmapDescriptorFactory.HUE_RED))); aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 14f)); goToBtn.setEnabled(true); } private LatLng toLatLng(LatLonPoint point) { if (point == null) return null; return new LatLng(point.getLatitude(), point.getLongitude()); } private List<PoiItem> sortByDistance(List<PoiItem> list, double lat, double lng) { LatLng me = new LatLng(lat, lng); return list.stream() .sorted((a, b) -> { double da = com.amap.api.maps.AMapUtils.calculateLineDistance(toLatLng(a.getLatLonPoint()), me); double db = com.amap.api.maps.AMapUtils.calculateLineDistance(toLatLng(b.getLatLonPoint()), me); return Double.compare(da, db); }) .collect(java.util.stream.Collectors.toList()); } @Override public void onPoiSearched(PoiResult result, int rCode) { String keyword = searchInput.getText().toString().trim(); CityManager.ParsedQuery parsed = CityManager.parse(keyword); if (parsed.targetCity.isEmpty()) return; if (rCode == 1000 && result != null && result.getPois() != null && !result.getPois().isEmpty()) { updateResultList(result.getPois()); } else { if (rCode == 1000) { emptyView.setText("⚠️ 未找到相关地点"); } else { // 是 API 错误 handleSearchError(rCode); emptyView.setText("⚠️ 未找到相关地点"); } emptyView.setVisibility(View.VISIBLE); resultListView.setVisibility(View.GONE); } } private void updateResultList(List<PoiItem> list) { poiList.clear(); poiList.addAll(list); adapter.notifyDataSetChanged(); resultListView.scrollToPosition(0); emptyView.setVisibility(list.isEmpty() ? View.VISIBLE : View.GONE); resultListView.setVisibility(list.isEmpty() ? View.GONE : View.VISIBLE); // 清理 ResultAdapter 中的附加文本（避免显示“ | 北京市”） adapter.clearExtraText(); if (!list.isEmpty()) { adapter.setSelected(0); onPoiItemSelected(list.get(0)); } } @Override public void onPoiItemSearched(PoiItem item, int rCode) {} @Override public void onRegeocodeSearched(RegeocodeResult result, int rCode) { if (result == null || result.getRegeocodeQuery() == null) return; LatLonPoint point = result.getRegeocodeQuery().getPoint(); if (rCode == 1000 && result.getRegeocodeAddress() != null) { String city = result.getRegeocodeAddress().getCity(); String updatedCity = (city != null && !city.isEmpty()) ? city : result.getRegeocodeAddress().getProvince(); if (Math.abs(point.getLatitude() - myCurrentLat) < 0.0001 && Math.abs(point.getLongitude() - myCurrentLng) < 0.0001) { currentCity = updatedCity; if (suggestHelper != null) { suggestHelper.setCurrentCity(currentCity); } Log.d("SearchResultActivity", "🎯 currentCity 已更新为: " + currentCity); } } else { Log.e("SearchResultActivity", "❌ 反编译失败: rCode=" + rCode); } } private void handleSearchError(int rCode) { String msg; switch (rCode) { case 12: msg = "API Key 错误"; break; case 27: msg = "网络连接失败"; break; case 30: msg = "SHA1 或包名错误"; break; case 33: msg = "请求频繁"; break; default: msg = "搜索失败: " + rCode; break; } Toast.makeText(this, msg, Toast.LENGTH_SHORT).show(); } @Override public void onGeocodeSearched(com.amap.api.services.geocoder.GeocodeResult geocodeResult, int i) {} @Override protected void onResume() { super.onResume(); mapView.onResume(); setupSearchSuggestion(); } @Override protected void onPause() { super.onPause(); mapView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); mapView.onDestroy(); geocodeSearch = null; } @Override protected void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } @Override public boolean onSupportNavigateUp() { onBackPressed(); return true; } } 报错：Cannot resolve symbol 'BitmapDescriptorFactory'、Cannot resolve symbol 'RouteSearch'、Cannot resolve method 'setRouteSearchListener(RouteSearch.OnRouteSearchListener)'、Cannot resolve symbol 'BusRouteResult'、Cannot resolve method 'getPaths()'、Cannot resolve symbol 'BusPath'、Cannot resolve method 'getBusLines()'、Cannot resolve symbol 'PolylineOptions'、'addPolyline(com.amap.api.maps.model.PolylineOptions)' in 'com.amap.api.maps.AMap' cannot be applied to '(PolylineOptions)'、Cannot resolve method 'calculateBusRouteAsyn(BusRouteQuery)'、Cannot resolve symbol 'LatLngBounds'、Cannot resolve method 'include(LatLng)'、Cannot resolve method 'build()'、
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出现这种情况的大多数原因是使用者没有按照规范创建web.xml，导致配置文件加载路径没有配置完全。我们都是直接手动创建的 换句话说也就是facets中Deployment Desciptors（项目部署）和Web Resouce Directories（web资源目录）没有同步（文件路径不一致或者其中之一没有配置）。 ...
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