对接百度OCR

怎么对接百度OCR平台?

对接开放平台首先需要阅读api文档:->百度OCR-API文档地址, 按照文档操作看起来是不是特别的简单了,如果你需要在你的项目中使用的话你需要申请一个app应用才能开展后面的工作,申请app应用的地址:–>百度OCR-申请app应用地址

申请app应用

按照操作指引一步一步的操作,一定要先领取,不然的接口调用的时候会受限制;创建好应用后你会得到appkey和SecretKey这两个保存好.

springboot + OCR

下面我们从项目中具体操作springboot整合OCR实现发票的识别和发票的验真等接口测试;

首先我们引入所需要的依赖

     <!-- 对接百度发票识别接口 --><dependency><groupId>com.baidu.aip</groupId><artifactId>java-sdk</artifactId><version>4.16.5</version></dependency><!--  httpclient  --><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.2</version></dependency><!--  httpcore  --><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpcore</artifactId><version>4.4.5</version></dependency>

编写一个http请求调用的工具类

package com.sq.ws.order.utils;import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;import javax.net.ssl.*;
import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.List;
import java.util.Map;/*** @Author: swang* @Date: 2022/10/11 下午8:16* http请求工具类*/
@Slf4j
public class HttpUtils {private static HttpClient httpClient;static {httpClient = getHttpClient();}public static String post(String requestUrl, String accessToken, String params)throws Exception {String contentType = "application/x-www-form-urlencoded";return HttpUtils.post(requestUrl, accessToken, contentType, params);}public static String post(String requestUrl, String accessToken, String contentType, String params)throws Exception {String encoding = "UTF-8";if (requestUrl.contains("nlp")) {encoding = "GBK";}return HttpUtils.post(requestUrl, accessToken, contentType, params, encoding);}public static String post(String requestUrl, String accessToken, String contentType, String params, String encoding)throws Exception {String url = requestUrl + "?access_token=" + accessToken;return HttpUtils.postGeneralUrl(url, contentType, params, encoding);}public static String postGeneralUrl(String generalUrl, String contentType, String params, String encoding)throws Exception {URL url = new URL(generalUrl);// 打开和URL之间的连接HttpURLConnection connection = (HttpURLConnection) url.openConnection();connection.setRequestMethod("POST");// 设置通用的请求属性connection.setRequestProperty("Content-Type", contentType);connection.setRequestProperty("Connection", "Keep-Alive");connection.setUseCaches(false);connection.setDoOutput(true);connection.setDoInput(true);// 得到请求的输出流对象DataOutputStream out = new DataOutputStream(connection.getOutputStream());out.write(params.getBytes(encoding));out.flush();out.close();// 建立实际的连接connection.connect();// 获取所有响应头字段
//        Map<String, List<String>> headers = connection.getHeaderFields();// 遍历所有的响应头字段
//        for (String key : headers.keySet()) {//            System.err.println(key + "--->" + headers.get(key));
//        }// 定义 BufferedReader输入流来读取URL的响应BufferedReader in = null;in = new BufferedReader(new InputStreamReader(connection.getInputStream(), encoding));String result = "";String getLine;while ((getLine = in.readLine()) != null) {result += getLine;}in.close();return result;}/*** 微信统一下单接口发送post请求** @param url        发送请求的URL* @param requestXml map转换xml的报文* @return 所代表远程资源的响应结果*/public static String doPost(String url, String requestXml) {CloseableHttpClient httpClient;CloseableHttpResponse httpResponse;// 创建httpClient连接对象httpClient = HttpClients.createDefault();// 创建post请求连接对象HttpPost httpPost = new HttpPost(url);// 创建连接请求对象,并设置连接参数RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(15000)   // 连接服务区主机超时时间.setConnectionRequestTimeout(60000) // 连接请求超时时间.setSocketTimeout(60000).build(); // 设置读取响应数据超时时间// 为httppost请求设置参数httpPost.setConfig(requestConfig);// 将上传参数放到entity属性中httpPost.setEntity(new StringEntity(requestXml, "UTF-8"));// 添加头信息httpPost.addHeader("Content-type", "text/xml");String result = "";try {// 发送请求httpResponse = httpClient.execute(httpPost);// 从相应对象中获取返回内容HttpEntity entity = httpResponse.getEntity();result = EntityUtils.toString(entity, "UTF-8");} catch (IOException e) {e.printStackTrace();}return result;}/*** 向指定 URL 发送GET方法的请求** @param url   发送请求的 URL* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return 所代表远程资源的响应结果*/public static String sendGet(String url, String param) {return sendGet(url, param, "UTF-8");}/*** 向指定 URL 发送GET方法的请求** @param url         发送请求的 URL* @param param       请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @param contentType 编码类型* @return 所代表远程资源的响应结果*/public static String sendGet(String url, String param, String contentType) {StringBuilder result = new StringBuilder();BufferedReader in = null;try {String urlNameString = url + "?" + param;log.info("sendGet - {}", urlNameString);URL realUrl = new URL(urlNameString);URLConnection connection = realUrl.openConnection();connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");connection.connect();in = new BufferedReader(new InputStreamReader(connection.getInputStream(), contentType));String line;while ((line = in.readLine()) != null) {result.append(line);}log.info("recv - {}", result);} catch (ConnectException e) {log.error("调用HttpUtils.sendGet ConnectException, url=" + url + ",param=" + param, e);} catch (SocketTimeoutException e) {log.error("调用HttpUtils.sendGet SocketTimeoutException, url=" + url + ",param=" + param, e);} catch (IOException e) {log.error("调用HttpUtils.sendGet IOException, url=" + url + ",param=" + param, e);} catch (Exception e) {log.error("调用HttpsUtil.sendGet Exception, url=" + url + ",param=" + param, e);} finally {try {if (in != null) {in.close();}} catch (Exception ex) {log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);}}return result.toString();}/*** 向指定 URL 发送POST方法的请求** @param url   发送请求的 URL* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return 所代表远程资源的响应结果*/public static String sendPost(String url, String param) {PrintWriter out = null;BufferedReader in = null;StringBuilder result = new StringBuilder();try {log.info("sendPost - {}", url);URL realUrl = new URL(url);URLConnection conn = realUrl.openConnection();conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");conn.setRequestProperty("Accept-Charset", "utf-8");conn.setRequestProperty("contentType", "utf-8");conn.setDoOutput(true);conn.setDoInput(true);out = new PrintWriter(conn.getOutputStream());out.print(param);out.flush();in = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));String line;while ((line = in.readLine()) != null) {result.append(line);}log.info("recv - {}", result);} catch (ConnectException e) {log.error("调用HttpUtils.sendPost ConnectException, url=" + url + ",param=" + param, e);} catch (SocketTimeoutException e) {log.error("调用HttpUtils.sendPost SocketTimeoutException, url=" + url + ",param=" + param, e);} catch (IOException e) {log.error("调用HttpUtils.sendPost IOException, url=" + url + ",param=" + param, e);} catch (Exception e) {log.error("调用HttpsUtil.sendPost Exception, url=" + url + ",param=" + param, e);} finally {try {if (out != null) {out.close();}if (in != null) {in.close();}} catch (IOException ex) {log.error("调用in.close Exception, url=" + url + ",param=" + param, ex);}}return result.toString();}public static String sendSSLPost(String url, String param) {StringBuilder result = new StringBuilder();String urlNameString = url + "?" + param;try {log.info("sendSSLPost - {}", urlNameString);SSLContext sc = SSLContext.getInstance("SSL");sc.init(null, new TrustManager[]{new TrustAnyTrustManager()}, new java.security.SecureRandom());URL console = new URL(urlNameString);HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");conn.setRequestProperty("Accept-Charset", "utf-8");conn.setRequestProperty("contentType", "utf-8");conn.setDoOutput(true);conn.setDoInput(true);conn.setSSLSocketFactory(sc.getSocketFactory());conn.setHostnameVerifier(new TrustAnyHostnameVerifier());conn.connect();InputStream is = conn.getInputStream();BufferedReader br = new BufferedReader(new InputStreamReader(is));String ret;while ((ret = br.readLine()) != null) {if (!"".equals(ret.trim())) {result.append(new String(ret.getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8));}}log.info("recv - {}", result);conn.disconnect();br.close();} catch (ConnectException e) {log.error("调用HttpUtils.sendSSLPost ConnectException, url=" + url + ",param=" + param, e);} catch (SocketTimeoutException e) {log.error("调用HttpUtils.sendSSLPost SocketTimeoutException, url=" + url + ",param=" + param, e);} catch (IOException e) {log.error("调用HttpUtils.sendSSLPost IOException, url=" + url + ",param=" + param, e);} catch (Exception e) {log.error("调用HttpsUtil.sendSSLPost Exception, url=" + url + ",param=" + param, e);}return result.toString();}/*** Http Get请求 请求地址** @param url    Get参数* @param params 编码* @param encode 返回请求结果*/public static String sendGetRequest(String url, Map<String, String> params, String encode) {String result = null;try {HttpGet httpGet;if (null == params) {httpGet = new HttpGet(url);} else {httpGet = new HttpGet(url + dealGetParams(params, encode));}HttpResponse response = httpClient.execute(httpGet);if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {result = EntityUtils.toString(response.getEntity());}} catch (IOException e) {e.printStackTrace();}return result != null ? result : "";}public static String sendGetRequest(String url, Map<String, String> params) {return sendGetRequest(url, params, "UTF-8");}public static String sendGetRequest(String url) {return sendGetRequest(url, null, "UTF-8");}public static String sendGetRequestGB2312(String url) {return sendGetRequest(url, null, "GB2312");}/*** POST请求 返回请求结果 HashMap键值参数*/@SuppressWarnings({"unchecked"})public static String sendPostRequest(String url, String header, Object params, String encode) throws Exception {String resultStr = null;HttpPost httpPost = new HttpPost(url);if (params != null) {StringEntity entity;if (params instanceof Map) {entity = new StringEntity(dealPostParams((HashMap<String, String>) params, encode));} else if (params instanceof String) {entity = new StringEntity((String) params, encode);} else if (params instanceof List) {entity = new UrlEncodedFormEntity((List<? extends NameValuePair>) params, encode);} else {throw new Exception("参数有误!");}httpPost.setHeader("Content-Type", "application/json");httpPost.setHeader("Client-Sign", header);httpPost.setEntity(entity);}try {HttpResponse response = httpClient.execute(httpPost);if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {resultStr = EntityUtils.toString(response.getEntity());}} catch (IOException e) {e.printStackTrace();}return resultStr;}public static String sendPostRequest(String url, String header) throws Exception {return sendPostRequest(url, header, "");}/*** 键值对请求 默认UTF-8编码*/public static String sendPostRequest(String url, String header, Map<String, String> params) throws Exception {return sendPostRequest(url, header, params, "UTF-8");}/*** String 默认UTF-8编码*/public static String sendPostRequest(String url, String header, String params) throws Exception {return sendPostRequest(url, header, params, "UTF-8");}/*** 键值对请求 默认UTF-8编码*/public static String sendPostRequest(String url, String header, List<NameValuePair> params) throws Exception {return sendPostRequest(url, header, params, "UTF-8");}/*** 处理Get方式请求的URL*/private static String dealGetParams(Map<String, String> params, String enc) throws UnsupportedEncodingException {StringBuffer sb = new StringBuffer();sb.append("?");for (Map.Entry<String, String> entry : params.entrySet()) {// 参数名=参数&参数名=参数sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), enc)).append("&");}// 删除最后一个&sb.deleteCharAt(sb.length() - 1);return sb.toString();}/*** 处理POST请求URL*/private static String dealPostParams(Map<String, String> params, String enc) {StringBuffer sb = new StringBuffer();for (Map.Entry<String, String> entry : params.entrySet()) {try {sb.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), enc)).append("&");} catch (UnsupportedEncodingException e) {e.printStackTrace();}}sb.deleteCharAt(sb.length() - 1);return sb.toString();}/*** 获取HttpClient*/@SuppressWarnings("deprecation")public static synchronized HttpClient getHttpClient() {if (null == httpClient) {httpClient = new DefaultHttpClient();}return httpClient;}private static class TrustAnyTrustManager implements X509TrustManager {@Overridepublic void checkClientTrusted(X509Certificate[] chain, String authType) {}@Overridepublic void checkServerTrusted(X509Certificate[] chain, String authType) {}@Overridepublic X509Certificate[] getAcceptedIssuers() {return new X509Certificate[]{};}}private static class TrustAnyHostnameVerifier implements HostnameVerifier {@Overridepublic boolean verify(String hostname, SSLSession session) {return true;}}}

首先我们先获取授权token,直接上代码;

public class BaiDuApi {private static final Logger logger = LoggerFactory.getLogger(BaiDuApi.class);private static String API_KEY = "你申请的appkey";private static String SECRET_KEY = "你申请的SECRET_KEY";// 这里我简单的测试,你可以将获取的token信息根据返回的过期时间存储到redis中,避免每次请求都调去接口获取token影响效率public static String getAccessToken() {String token_url = "https://aip.baidubce.com/oauth/2.0/token";Map<String, String> params = new HashMap<>();params.put("grant_type", "client_credentials");params.put("client_id", API_KEY);params.put("client_secret", SECRET_KEY);try {String result = HttpUtils.sendGet(token_url, appendParams(params));System.out.println(result);ObjectMapper objectMapper = new ObjectMapper();ResultToken resultToken = objectMapper.readValue(result, ResultToken.class);return resultToken.getAccess_token();}catch (Exception e) {logger.error(" 获取百度OCR授权失败:{} ", e.getMessage());}return null;}
}@Data
class ResultToken{private String refresh_token;private Long expires_in;private String session_key;private String access_token;private String scope;private String session_secret;}

这样就可以获取请求的token了,代码我已经测试过了,可以自行测试;

发票识别接口

// 发票识别public static String invoiceSb() {String invoiceUrl = "https://aip.baidubce.com/rest/2.0/ocr/v1/vat_invoice";try {String filePath = "/Users/wangshuai/img/47.jpeg";byte[] imgData = FileUtil.readFileByBytes(filePath);String imgStr = Base64Util.encode(imgData);String imgParam = URLEncoder.encode(imgStr, "UTF-8");String param = "image=" + imgParam;logger.info(" 请求的url:{} ", invoiceUrl);String result = HttpUtils.sendPost(requestAppendToken(invoiceUrl), param);ObjectMapper objectMapper = new ObjectMapper();Map invoiceResponse = objectMapper.readValue(result, Map.class);logger.info(" 返回的结果信息:{} ", invoiceResponse);}catch (Exception e) {logger.info(e.getMessage());}return null;}// 请求拼接tokenprivate static String requestAppendToken(String reqUrl) {return reqUrl+"?access_token=" + getAccessToken();}

发票验真接口

// 发票验真public static String invoiceCheck(Map<String, String> params) {String checkUrl = "https://aip.baidubce.com/rest/2.0/ocr/v1/vat_invoice_verification";try {String result = HttpUtils.sendPost(requestAppendToken(checkUrl), appendParams(params));ObjectMapper objectMapper = new ObjectMapper();Map readValue = objectMapper.readValue(result, Map.class);logger.info(" 获取发票验证结果:{} ", readValue);}catch (Exception e) {logger.error(" 发票验证异常:{} ", e.getMessage());}return null;}// 请求拼接tokenprivate static String requestAppendToken(String reqUrl) {return reqUrl+"?access_token=" + getAccessToken();}// 参数拼接 name=admin&pwd=123 这种格式private static String appendParams(Map<String, String> params) {StringBuffer str = new StringBuffer();if(params.size() > 0) {for (Map.Entry entry : params.entrySet()) {str.append(entry.getKey()).append("=").append(entry.getValue()).append("&");}str.deleteCharAt(str.length() -1);}System.out.println("请求参数打印 ="+str.toString());return str.toString();}

springboot对接百度OCR分享就到这里了,有什么问题欢迎在评论区留言! 有什么不足的地方希望大家给出宝贵建议!

对接百度OCR发票识别功能相关推荐

Uipath 百度OCR发票识别
学习目标: 了解百度OCR 掌握Uipath 第三方API 请求HttpRequest 掌握Uipath 百度OCR 发票识别如何将发票内容写入Excel 1.了解百度OCR 百度AI人工智能服务平 ...
JAVA实现百度OCR文字识别功能
转自:http://blog.csdn.net/javagirlone/article/details/47807963 闲来无事,发现百度有一个OCR文字识别接口,感觉挺有意思的,拿来研究一下. 百 ...
mac 文字识别软件ocr_Mac平台上一款免费的OCR文字识别功能的屏幕截图软件Screen OCR...
今天小编为大家带来Mac平台上一款免费的OCR文字识别功能的屏幕截图软件Screen OCR for Mac(屏幕截图OCR工具)www.macdown.com .使用这款截图ocr识别工具可以帮助 ...
Java调用百度OCR文字识别API实现图片文字识别软件
java_baidu_ocr Java调用百度OCR文字识别API实现图片文字识别软件这是一款小巧方便,强大的文字识别软件,由Java编写,配上了窗口界面调用了百度ocr文字识别API 识别精度高 ...
UIPATH 调用第三方接口（百度OCR文字识别举例）
业务场景: 使用RPA获取业务系统网站的验证码截图,将截图转base64之后传到百度OCR文字识别接口,获取文字识别结果,将识别结果用作登陆业务系统的验证码凭证.从而解决RPA自动登录系统的问题. 设 ...
百度AI - 对接百度AI 增值税发票识别接口
文章目录百度AI - 对接百度AI 增值税发票识别接口相关内容:Python 实用内容 1.注册应用并获取应用AK,SK 2.编写请求方法 3.上传发票并读取发票内容 4.输出结果百度AI - ...
Unity实现OCR文字识别功能
文章来源: 学习通http://www.bdgxy.com/ 普学网http://www.boxinghulanban.cn/ 智学网http://www.jaxp.net/ 表格制作excel教程h ...
Android百度ocr相机裁剪,百度OCR文字识别案例_android防止akamp;sk;泄漏版本
[实例简介] 百度OCR文字识别,支持手机拍照识别,相册选择识别.网络图片识别等功能.该demo的配文博客为https://blog.csdn.net/pyfysf/article/details/8 ...
java ocr api_Java调用百度OCR文字识别API实现图片文字识别软件
Java调用百度OCR文字识别API实现图片文字识别软件原创isinple 发布于2019-01-06 13:35:59 阅读数 1296 收藏展开 java_baidu_ocr Java调用百度 ...

对接百度OCR发票识别功能

对接百度OCR

怎么对接百度OCR平台?

springboot + OCR

对接百度OCR发票识别功能相关推荐

最新文章

热门文章