百度api证件,票据识别

springboot项目集成百度api:

                    实现证件及票据识别.

项目结构:

pom.xml

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.2.2.RELEASE
         
    
    com.ssj
    baiduapi
    0.0.1-SNAPSHOT
    baiduapi
    Demo project for Spring Boot

    
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter
        
        
        
            com.alibaba
            fastjson
            1.2.46
        
        
        
            org.apache.httpcomponents
            httpclient
            4.5.5
        
        
        
            commons-codec
            commons-codec
            1.12
        
        
            org.apache.commons
            commons-lang3
        
        
            commons-beanutils
            commons-beanutils
            1.9.3
        

        
            commons-io
            commons-io
            2.6
        
        
            com.auth0
            java-jwt
            3.4.0
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        

        
            org.springframework.boot
            spring-boot-starter-freemarker
        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

controller

package com.ssj.baiduapi.xaingmu;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.ssj.baiduapi.xaingmu.config.AuthService;
import com.ssj.baiduapi.xaingmu.config.Currency;
import com.ssj.baiduapi.xaingmu.config.Directional;
import org.apache.commons.lang3.StringUtils;

import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.io.IOException;
import java.net.URISyntaxException;

@RestController
public class BaiDUController {

    @RequestMapping(value = "baiDuApi", method = RequestMethod.POST)
    public JSONObject baiDuApi(@RequestBody String data) throws IOException, URISyntaxException {
        JSONObject json = new JSONObject();
        String path = "";
        String type = "";
        // front：身份证含照片的一面；back：身份证带国徽的一面
        String idCardSide = "";
        if (StringUtils.isNotBlank(data)) {
            JSONObject jsonObject = JSON.parseObject(data);
            path = jsonObject.getString("path");
            type = jsonObject.getString("type");
            idCardSide = jsonObject.getString("idCardSide");
        }

        Directional directional = new Directional();
        String token = directional.takeString(type,idCardSide);
        if (token.equals("")){
            json.put("json","类型传输不正确");
            return json;
        }else {
            AuthService authService = new AuthService();
            String auth = authService.getAuth();
            token+="access_token="+auth;
        }

        Currency currency = new Currency();
        String str = currency.checkFile(path, token);
        json.put("json",str);
        return json;
    }


}

工具类

    Directional

package com.ssj.baiduapi.xaingmu.config;

public class Directional {
    public static String takeString(String tag,String idCardSide){
        String DECS_URL = "";
        switch (tag){
            case "1" :
                // 身份证
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/idcard?id_card_side="+idCardSide+"&";
                break;
            case "2" :
                // 营业执照
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license?";
                break;
            case "3":
                // 通用票据识别
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/receipt?";
                break;
            case "4":
                // 增值税发票
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/vat_invoice?";
                break;
            case "5":
                // 定额发票
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/quota_invoice?";
                break;
            default:
                DECS_URL = "";

        }
        return DECS_URL;
    }

}

AuthService:

package com.ssj.baiduapi.xaingmu.config;

import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

public class AuthService {
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的apikey
        String clientId = "*****";
        // 官网获取的 Secret Key 更新为你注册的Secret Key
        String clientSecret = "*****";
        return getAuth(clientId, clientSecret);
    }
    /**
     * 获取API访问token 该token有一定的有效期，token要自行管理，当失效时需要重新获取.
     *
     * @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 示例
     *         "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    private 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为固定参敄1¤7
                + "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();
            // 获取响应头字段
            Map> map = connection.getHeaderFields();
            // 遍历响应头
            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()));
            StringBuilder result = new StringBuilder();
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = JSONObject.parseObject(result.toString());
            return jsonObject.getString("access_token");
        } catch (Exception e) {
            System.err.printf("获取token失败");
            e.printStackTrace(System.err);
        }
        return null;
    }
}

Currency:

package com.ssj.baiduapi.xaingmu.config;

import com.ssj.baiduapi.config.BaseImg64;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

public class Currency {
    public static String checkFile(String path,String token) throws URISyntaxException, IOException {
        File file = new File(path);
        if (!file.exists()) {
            throw new NullPointerException("未找到图片");
        }
        String image = BaseImg64.getImageStrFromPath(path);
        String param = "image=" + image;
        return post(param,token);
    }


    private static String post(String param,String token) throws URISyntaxException, IOException {
        HttpClient httpClient = new DefaultHttpClient();
        HttpPost post = new HttpPost();
        URI url = new URI(token);
        post.setURI(url);
        post.setHeader("Content-Type", "application/x-www-form-urlencoded");
        StringEntity entity = new StringEntity(param);
        post.setEntity(entity);
        HttpResponse response = httpClient.execute(post);
        System.out.println(response.toString());
        if (response.getStatusLine().getStatusCode() == 200) {
            String str;
            try {
                str = EntityUtils.toString(response.getEntity());
                return str;
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
        return null;
    }
}

文字识别同理,修改参数即可