百度api證件,票據識別

springboot項目集成百度api:

                    實現證件及票據識別.

項目結構:

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ssj</groupId>
    <artifactId>baiduapi</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>baiduapi</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.46</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.5</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.12</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.3</version>
        </dependency>

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.6</version>
        </dependency>
        <dependency>
            <groupId>com.auth0</groupId>
            <artifactId>java-jwt</artifactId>
            <version>3.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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：身份證含照片的一面；back：身份證帶國徽的一面
        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","類型傳輸不正確");
            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;
    }


}

工具類

    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" :
                // 身份證
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/idcard?id_card_side="+idCardSide+"&";
                break;
            case "2" :
                // 營業執照
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/business_license?";
                break;
            case "3":
                // 通用票據識別
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/receipt?";
                break;
            case "4":
                // 增值稅發票
                DECS_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/vat_invoice?";
                break;
            case "5":
                // 定額髮票
                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() {
        // 官網獲取的 API Key 更新爲你註冊的apikey
        String clientId = "*****";
        // 官網獲取的 Secret Key 更新爲你註冊的Secret Key
        String clientSecret = "*****";
        return getAuth(clientId, clientSecret);
    }
    /**
     * 獲取API訪問token 該token有一定的有效期，token要自行管理，當失效時需要重新獲取.
     *
     * @param ak
     *            - 百度雲官網獲取的 API Key
     * @param sk
     *            - 百度雲官網獲取的 Securet Key
     * @return assess_token 示例
     *         "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    private static String getAuth(String ak, String sk) {
        // 獲取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type爲固定參敄1¤7
                + "grant_type=client_credentials"
                // 2. 官網獲取的 API Key
                + "&client_id=" + ak
                // 3. 官網獲取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打開和URL之間的連接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 獲取響應頭字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍歷響應頭
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定義 BufferedReader輸入流來讀取URL的響應
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder result = new StringBuilder();
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
            /**
             * 返回結果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = JSONObject.parseObject(result.toString());
            return jsonObject.getString("access_token");
        } catch (Exception e) {
            System.err.printf("獲取token失敗");
            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("未找到圖片");
        }
        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;
    }
}

文字識別同理,修改參數即可