Java百度身份证识别接口实现【配置即用】

第一步：申请百度 OCR 身份证识别 API

注册百度智能云：https://cloud.baidu.com/

开通身份证识别 OCR 服务【直接搜索】

创建应用，获取：

API Key

Secret Key

第二步：Java依赖

java 复制代码

<dependencies>
    <dependency>
        <groupId>com.squareup.okhttp3</groupId>
        <artifactId>okhttp</artifactId>
        <version>4.9.3</version>
    </dependency>
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.10</version>
    </dependency>
</dependencies>

第三步：Java程序

java 复制代码

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import okhttp3.*;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.Base64;

public class IdCardRecognizer {

    private static final String API_KEY = "你的API_KEY";
    private static final String SECRET_KEY = "你的SECRET_KEY";
    private static final String OCR_URL = "https://aip.baidubce.com/rest/2.0/ocr/v1/idcard";

    public static void main(String[] args) throws IOException {
        String accessToken = getAccessToken();
        File imageFile = new File("idcard.jpg"); // 替换为你的图片路径
        String base64Image = Base64.getEncoder().encodeToString(Files.readAllBytes(imageFile.toPath()));

        OkHttpClient client = new OkHttpClient();

        RequestBody body = new FormBody.Builder()
                .add("image", base64Image)
                .add("id_card_side", "front") // "front" 正面，"back" 反面
                .build();

        Request request = new Request.Builder()
                .url(OCR_URL + "?access_token=" + accessToken)
                .post(body)
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();

        Response response = client.newCall(request).execute();
        String json = response.body().string();

        JsonObject result = JsonParser.parseString(json).getAsJsonObject().getAsJsonObject("words_result");
        System.out.println("姓名: " + result.getAsJsonObject("姓名").get("words").getAsString());
        System.out.println("性别: " + result.getAsJsonObject("性别").get("words").getAsString());
        System.out.println("民族: " + result.getAsJsonObject("民族").get("words").getAsString());
        System.out.println("出生: " + result.getAsJsonObject("出生").get("words").getAsString());
        System.out.println("住址: " + result.getAsJsonObject("住址").get("words").getAsString());
        System.out.println("公民身份号码: " + result.getAsJsonObject("公民身份号码").get("words").getAsString());
    }

    // 获取AccessToken（可缓存一天）
    private static String getAccessToken() throws IOException {
        OkHttpClient client = new OkHttpClient();
        String url = "https://aip.baidubce.com/oauth/2.0/token"
                + "?grant_type=client_credentials"
                + "&client_id=" + API_KEY
                + "&client_secret=" + SECRET_KEY;

        Request request = new Request.Builder().url(url).build();
        Response response = client.newCall(request).execute();
        String json = response.body().string();

        JsonObject jsonObject = JsonParser.parseString(json).getAsJsonObject();
        return jsonObject.get("access_token").getAsString();
    }
}