OpenAI API调用实践

目录

一、环境准备

二、获取OpenAI的API keys

1.登录OpenAI账号进入生成API Keys页面

2.添加支付方式并和持卡信息对应

3.ChatGPT根据不同模型可Token数获取产生价格资费标准

4.完成付费

三、调用OpenAI API示例

1.OpenAI官方参考接入文档

2.通过Java测试例子调用OpenAI API

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一、环境准备

二、获取OpenAI的API keys

1.登录OpenAI账号进入生成API Keys页面

https://platform.openai.com/api-keys

​

2.添加支付方式并和持卡信息对应

https://platform.openai.com/account/billing/payment-methods

​

3.ChatGPT根据不同模型可Token数获取产生价格资费标准

https://openai.com/pricing

4.完成付费

https://platform.openai.com/account/billing/overview

三、调用OpenAI API示例

1.OpenAI官方参考接入文档

https://platform.openai.com/docs/libraries/community-libraries

2.通过Java测试例子调用OpenAI API

import java.io.*;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
 
public class ChatGPTAPIExample {
 
    public static String chatGPT(String prompt) {
        String url = "https://api.openai.com/v1/chat/completions";
        String apiKey = "sk-***********************************";
        String model = "gpt-3.5-turbo";
        try {
            URL obj = new URL(url);
            // 结合VPN设置代理IP和Port
            Proxy proxy = new Proxy(java.net.Proxy.Type.HTTP,new InetSocketAddress("127.0.0.1", Integer.valueOf(7890)));
            HttpURLConnection connection = (HttpURLConnection) obj.openConnection(proxy);
            connection.setRequestMethod("POST");
            connection.setRequestProperty("Authorization", "Bearer " + apiKey);
            connection.setRequestProperty("Content-Type", "application/json");
            // body
            String body = "{\"model\": \"" + model + "\", \"messages\": [{\"role\": \"user\", \"content\": \"" + prompt + "\"}]}";
            connection.setDoOutput(true);
            OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
            writer.write(body);
            writer.flush();
            writer.close();
            // 生成回复内容
            BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuffer response = new StringBuffer();
            while ((line = br.readLine()) != null) {
                response.append(line);
            }
            br.close();
            return extractMessageFromJSONResponse(response.toString());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    public static String extractMessageFromJSONResponse(String response) {
        int start = response.indexOf("content")+ 11;
        int end = response.indexOf("\"", start);
        return response.substring(start, end);
    }
 
    public static void main(String[] args) {
        System.out.println(chatGPT("Java有哪些特性请用20以内字数描述"));
    }
}

调用OpenAI API时候请设置VPN代理的IP和端口

语言后续推荐使用Python调用。或者https://github.com/TheoKanning/openai-java/tree/main