fastgpt暴露接口给JAVA程序

### FastGPT与Java程序集成的API调用示例 为了使FastGPT能够与Java程序进行交互，通常可以通过其提供的RESTful API接口完成。以下是基于Java语言的一个简单示例，展示如何利用`HttpURLConnection`类发送HTTP请求并与FastGPT API通信。 #### 使用Java发送GET请求到FastGPT API 下面是一个基本的Java代码片段，用于通过GET方法访问FastGPT的相关资源： ```java import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; public class FastGPTApiExample { public static void main(String[] args) { try { URL url = new URL("https://api.fastgpt.com/v1/resource"); // 替换为目标API地址 HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.setRequestProperty("Authorization", "Bearer YOUR_ACCESS_TOKEN_HERE"); // 设置认证令牌 connection.setRequestProperty("Content-Type", "application/json"); int responseCode = connection.getResponseCode(); System.out.println("Response Code: " + responseCode); BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream())); String inputLine; StringBuilder response = new StringBuilder(); while ((inputLine = in.readLine()) != null) { response.append(inputLine); } in.close(); System.out.println(response.toString()); } catch (Exception e) { e.printStackTrace(); } } } ``` 此代码展示了如何构建一个基础的GET请求，并处理返回的数据流[^2]。 #### 发送POST请求至FastGPT API 如果需要向FastGPT传递数据，则可以采用POST请求的方式。以下是一段完整的Java POST请求示例代码： ```java import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; public class PostRequestToFastGPT { private final static String FAST_GPT_API_URL = "https://api.fastgpt.com/v1/chat/completions"; public static void main(String[] args) throws Exception { URL obj = new URL(FAST_GPT_API_URL); HttpURLConnection con = (HttpURLConnection) obj.openConnection(); // Set request properties con.setRequestMethod("POST"); con.setRequestProperty("Authorization", "Bearer YOUR_ACCESS_TOKEN_HERE"); con.setRequestProperty("Content-Type", "application/json; utf-8"); con.setDoOutput(true); // Enable output to send data String jsonInputString = "{ \"model\": \"your_model\", \"messages\": [{\"role\":\"user\",\"content\":\"Hello!\"},{\"role\":\"assistant\",\"content\":\"Hi there!\"}] }"; try(OutputStream os = con.getOutputStream()) { byte[] input = jsonInputString.getBytes("utf-8"); os.write(input, 0, input.length); } int code = con.getResponseCode(); System.out.println("Response Code : " + code); if(code == HttpURLConnection.HTTP_OK){ BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "utf-8")); StringBuilder response = new StringBuilder(); String responseLine = null; while((responseLine = br.readLine()) != null){ response.append(responseLine.trim()); } System.out.println(response.toString()); }else{ System.err.println("Error occurred during the request."); } con.disconnect(); } } ``` 上述代码实现了向指定URL发起带有JSON负载的POST请求功能。 #### 注意事项 在实际项目中，请确保替换掉占位符（如 `YOUR_ACCESS_TOKEN_HERE`, `your_model`），并依据官方文档调整具体字段名及其含义。此外，在生产环境中还需考虑异常捕获机制以及安全性措施，比如敏感信息加密传输等。