4月19日冲刺记录

1.我昨天的成就

完成了调用第三方库

2.遇到什么困难

调用很顺利，调用的是百度的第三方接口，百度提供了详细的使用教程

3.今天的任务

测试动物识别api

4.代码/截屏

package com.teamwork.demo.util;

import com.google.gson.Gson;

import com.teamwork.demo.entity.*;
import okhttp3.*;
import org.json.JSONObject;


import java.io.IOException;
import java.net.URLEncoder;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Base64;
import java.util.List;

public class BaiduApi {

    public static final String API_KEY = "TKTcVUT5Y9nB";
    public static final String SECRET_KEY = "KWNrT56xanoLUDLax";

    static final OkHttpClient HTTP_CLIENT = new OkHttpClient().newBuilder().build();

    public static Result<List<Fish>> test(String image) throws IOException {
        MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
        // image 可以通过 getFileContentAsBase64("C:\fakepath\下载.jpg") 方法获取,如果Content-Type是application/x-www-form-urlencoded时,第二个参数传true

        //String image = getFileContentAsBase64("D:\\QQdate\\1501597302\\FileRecv\\下载.jpg",true);

        RequestBody body = RequestBody.create(mediaType, "image="+image);
        Request request = new Request.Builder()
                .url("https://aip.baidubce.com/rest/2.0/image-classify/v1/animal?access_token=" + getAccessToken())
                .method("POST", body)
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .addHeader("Accept", "application/json")
                .build();
        Response response = HTTP_CLIENT.newCall(request).execute();
        assert response.body() != null;
        Result<List<Fish>> result = new Gson().fromJson(response.body().string(),Result.class);
        return result;

    }

    /**
     * 获取文件base64编码
     *
     * @param path      文件路径
     * @param urlEncode 如果Content-Type是application/x-www-form-urlencoded时,传true
     * @return base64编码信息，不带文件头
     * @throws IOException IO异常
     */
    static String getFileContentAsBase64(String path, boolean urlEncode) throws IOException {
        byte[] b = Files.readAllBytes(Paths.get(path));
        String base64 = Base64.getEncoder().encodeToString(b);
        if (urlEncode) {
            base64 = URLEncoder.encode(base64, "utf-8");
        }
        return base64;
    }


    /**
     * 从用户的AK，SK生成鉴权签名（Access Token）
     *
     * @return 鉴权签名（Access Token）
     * @throws IOException IO异常
     */
    static String getAccessToken() throws IOException {
        MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
        RequestBody body = RequestBody.create(mediaType, "grant_type=client_credentials&client_id=" + API_KEY
                + "&client_secret=" + SECRET_KEY);
        Request request = new Request.Builder()
                .url("https://aip.baidubce.com/oauth/2.0/token")
                .method("POST", body)
                .addHeader("Content-Type", "application/x-www-form-urlencoded")
                .build();
        Response response = HTTP_CLIENT.newCall(request).execute();
        return new JSONObject(response.body().string()).getString("access_token");
    }

}