【java毕业设计】springboot《计算机基础》网上考试系统(springboot+vue+mysql+说明文档).zip

package com.cl.utils; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.HashMap; import java.util.List; import java.util.Map; import org.json.JSONArray; import org.json.JSONObject; import com.baidu.aip.ocr.AipOcr; import com.baidu.aip.imageclassify.AipImageClassify; /** * 类说明 : */ public class BaiduUtil { /** * 根据经纬度获得省市区信息 * @param lon 纬度 * @param lat 经度 * @param coordtype 经纬度坐标系 * @return */ public static Map<String, String> getCityByLonLat(String key, String lng, String lat) { String location = lat + "," + lng; try { //拼装url String url = "http://api.map.baidu.com/reverse_geocoding/v3/?ak="+key+"&output=json&coordtype=wgs84ll&location="+location; String result = HttpClientUtils.doGet(url); JSONObject o = new JSONObject(result); Map<String, String> area = new HashMap<>(); area.put("province", o.getJSONObject("result").getJSONObject("addressComponent").getString("province")); area.put("city", o.getJSONObject("result").getJSONObject("addressComponent").getString("city")); area.put("district", o.getJSONObject("result").getJSONObject("addressComponent").getString("district")); area.put("street", o.getJSONObject("result").getJSONObject("addressComponent").getString("street")); return area; }catch (Exception e) { e.printStackTrace(); } return null; } /** * 获取API访问token * 该token有一定的有效期，需要自行管理，当失效时需重新获取. * @param ak - 百度云官网获取的 API Key * @param sk - 百度云官网获取的 Securet Key * @return assess_token */ public static String getAuth(String ak, String sk) { // 获取token地址 String authHost = "https://aip.baidubce.com/oauth/2.0/token?"; String getAccessTokenUrl = authHost // 1. grant_type为固定参数 + "grant_type=client_credentials" // 2. 官网获取的 API Key + "&client_id=" + ak // 3. 官网获取的 Secret Key + "&client_secret=" + sk; try { URL realUrl = new URL(getAccessTokenUrl); // 打开和URL之间的连接 HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection(); connection.setRequestMethod("GET"); connection.connect(); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.err.println(key + "--->" + map.get(key)); } // 定义 BufferedReader输入流来读取URL的响应 BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream())); String result = ""; String line; while ((line = in.readLine()) != null) { result += line; } /** * 返回结果示例 */ System.err.println("result:" + result); org.json.JSONObject jsonObject = new org.json.JSONObject(result); String access_token = jsonObject.getString("access_token"); return access_token; } catch (Exception e) { System.err.printf("获取token失败！"); e.printStackTrace(System.err); } return null; } //设置APPID/AK/SK public static final String APP_ID = "40927715"; public static final String API_KEY = "DPinK7BkM3yI4Qptnr0eFZNH"; public static final String SECRET_KEY = "wmZbglKccAGMBwzZCyn9IVQfK2ObRAtc"; private static AipOcr ocrClient = null; /** * 识别图片上的文本内容，转成文字字符串返回 * @param imagePath 图片文件的路径 */ public static String generalString(String imagePath, boolean isNewline){ try{ HashMap<String, String> options = new HashMap<String, String>(); options.put("language_type", "CHN_ENG"); //CHN_ENG:中英文混合， ENG:英文 options.put("detect_direction", "true"); //是否检测图像朝向，默认不检测，即：false options.put("detect_language", "true"); //是否检测语言，默认不检测。 options.put("probability", "false"); //是否返回识别结果中每一行的置信度 //通用文字识别 if(ocrClient==null) { ocrClient = new AipOcr(APP_ID, API_KEY, SECRET_KEY); ocrClient.setConnectionTimeoutInMillis(5000); ocrClient.setSocketTimeoutInMillis(60000); } JSONObject jsonObject = ocrClient.basicAccurateGeneral(imagePath, options); String result = mergeString(jsonObject, isNewline); return result; }catch(Exception ex){ ex.printStackTrace(); } return null; } private static String mergeString(JSONObject jsonObject, boolean isNewline){ if(jsonObject == null){ return ""; } if(jsonObject.has("words_result") && jsonObject.has("words_result_num")){ int wordsResultNum = jsonObject.getInt("words_result_num"); if(wordsResultNum > 0){ StringBuilder sb = new StringBuilder(); JSONArray jsonArray = jsonObject.getJSONArray("words_result"); int len = jsonArray.length(); for(int i=0;i<len;i++) { JSONObject obj = (JSONObject)jsonArray.get(i); if(isNewline){ sb.append(obj.get("words") + "\n"); }else{ sb.append(obj.get("words")); } } return sb.toString(); } }else{ return jsonObject.toString(); } return null; } public static JSONObject animalDetect(String imgPath) { //初始化 AipImageClassify aic = new AipImageClassify(APP_ID, API_KEY, SECRET_KEY); //返回JSON格式的数据 HashMap<String, String> params = new HashMap<String, String>(); params.put("baike_num", "1"); JSONObject res = aic.animalDetect(imgPath, params); System.out.println(res.toString(2)); return res; } public static JSONObject dishDetect(String imgPath) { //初始化 AipImageClassify aic = new AipImageClassify(APP_ID, API_KEY, SECRET_KEY); //返回JSON格式的数据 HashMap<String, String> params = new HashMap<String, String>(); params.put("baike_num", "1"); JSONObject res = aic.dishDetect(imgPath, params); System.out.println(res.toString(2)); return res; } public static JSONObject plantDetect(String imgPath) { //初始化 AipImageClassify aic = new AipImageClassify(APP_ID, API_KEY, SECRET_KEY); //返回JSON格式的数据 HashMap<String, String> params = new HashMap<String, String>(); params.put("baike_num", "1"); JSONObject res = aic.plantDetect(imgPath, params); System.out.println(res.toString(2)); return res; } public static JSONObject advancedGeneral(String imgPath) { //初始化 AipImageClassify aic = new AipImageClassify(APP_ID, API_KEY, SECRET_KEY); //返回JSON格式的数据 HashMap<String, String> params = new HashMap<String, String>();