Baidu AI Open Platform
Official website preparation
URL
Baidu AI open platform: http://ai.baidu.com/
log in Register
You can register one if you haven't registered a Baidu account.
Open the console
Select image recognition
Create application
Fill in correctly
Get the corresponding API
Code writing
You can refer to the official tutorial document here
Documentation
Documentation
Link: https://ai.baidu.com/ai-doc/IMAGERECOGNITION/Zk3bcxdfr
Code
Code
Use IDEA to create a new project,
where the code is written in the official document
Main category
package com.baidu.ai.aip;
import com.baidu.ai.aip.utils.Base64Util;
import com.baidu.ai.aip.utils.FileUtil;
import com.baidu.ai.aip.utils.HttpUtil;
import java.net.URLEncoder;
/**
* 动物识别
*/
public class Animal {
/**
* 重要提示代码中所需工具类
* FileUtil,Base64Util,HttpUtil,GsonUtils请从
* https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
* https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
* https://ai.baidu.com/file/544D677F5D4E4F17B4122FBD60DB82B3
* https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
* 下载
*/
public static String animal() {
// 请求url
String url = "https://aip.baidubce.com/rest/2.0/image-classify/v1/animal";
try {
// 本地文件路径
String filePath = "[本地文件路径]";
byte[] imgData = FileUtil.readFileByBytes(filePath);
String imgStr = Base64Util.encode(imgData);
String imgParam = URLEncoder.encode(imgStr, "UTF-8");
String param = "image=" + imgParam;
// 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
String accessToken = "[调用鉴权接口获取的token]";
String result = HttpUtil.post(url, accessToken, param);
System.out.println(result);
return result;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
Animal.animal();
}
}
Utils
Utils
Important note The required tools in the code are
FileUtil, Base64Util, HttpUtil, GsonUtils from
https://ai.baidu.com/file/658A35ABAB2D404FBF903F64D47C1F72
https://ai.baidu.com/file/C8D81F3301E24D2892968F09AE1AD6E2
https://ai.baidu .com/file/544D677F5D4E4F17B4122FBD60DB82B3
https://ai.baidu.com/file/470B3ACCA3FE43788B5A963BF0B625F3
download
Acquired token
Reference link: https://ai.baidu.com/ai-doc/REFERENCE/Ck3dwjhhu
Acquired token
Import maven here due to the need for json
<!-- https://mvnrepository.com/artifact/org.json/json -->
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20200518</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.6</version>
</dependency>
import org.json.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;
/**
* 获取token类
*/
public class AuthService {
/**
* 获取权限token
* @return 返回示例：
* {
* "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
* "expires_in": 2592000
* }
*/
public static String getAuth() {
// 官网获取的 API Key 更新为你注册的
String clientId = "百度云应用的AK";
// 官网获取的 Secret Key 更新为你注册的
String clientSecret = "百度云应用的SK";
return getAuth(clientId, clientSecret);
}
/**
* 获取API访问token
* 该token有一定的有效期，需要自行管理，当失效时需重新获取.
* @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"
*/
public 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为固定参数
+ "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();
// 获取所有响应头字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍历所有的响应头字段
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()));
String result = "";
String line;
while ((line = in.readLine()) != null) {
result += line;
}
/**
* 返回结果示例
*/
System.err.println("result:" + result);
JSONObject jsonObject = new JSONObject(result);
String access_token = jsonObject.getString("access_token");
return access_token;
} catch (Exception e) {
System.err.printf("获取token失败！");
e.printStackTrace(System.err);
}
return null;
}
}
test
success
{
"result":[{
"score":"0.429953","name":"金吉拉猫"},
{
"score":"0.2946","name":"喜马拉雅猫"},
{
"score":"0.152587","name":"波斯猫"},
{
"score":"0.0226899","name":"狮子猫"},
{
"score":"0.0184391","name":"英国长毛猫"},
{
"score":"0.0145019","name":"挪威森林猫"}],
"log_id":1376854737713889280}
Code Cloud
The relevant code has been uploaded to Code Cloud
https://gitee.com/huangjialin3344/baidu-ai
to sum up
This is my first attempt, and the result was successful. I will test more api interfaces in the future.