一、输入文件及申请的Token
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;import org.json.JSONObject;import com.alibaba.fastjson.JSON;
import com.baidu.ai.aip.utils.Base64Util;
import com.baidu.ai.aip.utils.FileUtil;
import com.baidu.ai.aip.utils.HttpUtil;public class BaiduExcel {public static void main(String[] args) throws IOException {String accessToken = getAuth("aI62Wj4bu6ZOF46R7taLstZ8", "OUBy6goyji2IU4yWjlvlbFxXF6dKGgcP");String request_id = requestPic("D:/007.jpg",accessToken);//定时器Timer timer=new Timer(); timer.schedule(new TimerTask(){ public void run(){ String url = getUrl(request_id,accessToken);download download = new download();try {download.downLoadFromUrl(url, "识别文件.xls", "D://", accessToken);System.out.println("识别成功");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}this.cancel();}},50000); //延迟10s进行，否则显示进行中（可根据文件大小调整时间）}/*** @author Ragty* @param 获取请求id* @serialData 2018.8.22* @param filePath* @return*/public static String requestPic(String filePath,String accessToken) {String otherHost = "https://aip.baidubce.com/rest/2.0/solution/v1/form_ocr/request";try {byte[] imgData = FileUtil.readFileByBytes(filePath);String imgStr = Base64Util.encode(imgData);String params = URLEncoder.encode("image", "UTF-8") + "=" + URLEncoder.encode(imgStr, "UTF-8");/*** 线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。*/String result = HttpUtil.post(otherHost, accessToken, params);JsonAnalyze jsonAnalyze = new JsonAnalyze();Map<String, Object> map = jsonAnalyze.json2Map(result);Object a = map.get("result");String zz = jsonAnalyze.object2Json(a);String zz1 = zz.substring(1, zz.length()-1);jsonAnalyze.json2Map(zz1);String result1 = jsonAnalyze.json2Map(zz1).get("request_id").toString();return result1;} catch (Exception e) {e.printStackTrace();}return null;}/*** @author Ragty* @param 获取异步请求到的excel地址* @param 2018.8.22* @param request_id* @return*/public static String getUrl(String request_id,String accessToken) {String otherHost = "https://aip.baidubce.com/rest/2.0/solution/v1/form_ocr/get_request_result";try {String params = URLEncoder.encode("request_id", "UTF-8") + "=" + URLEncoder.encode(request_id, "UTF-8");/*** 线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。*/String result = HttpUtil.post(otherHost, accessToken, params);JsonAnalyze jsonAnalyze = new JsonAnalyze();Map<String, Object> map = jsonAnalyze.json2Map(result);Object a = map.get("result");String zz = jsonAnalyze.object2Json(a);Map<String, Object> map1 = jsonAnalyze.json2Map(zz);String url = map1.get("result_data").toString();return url;} catch (Exception e) {e.printStackTrace();}return null;}/*** @author Ragty* @param 获取当前的token* @serialData 2018.8.22* @param ak* @param sk* @return*/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);JSONObject jsonObject = new 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;}}
二、识别效果
识别前：
识别后：
