目录

1、先到九天大模型的官网（LLM Studio）上订阅模型的推理服务，得到APIKey，后期需要使用它生成token才能调用模型的推理服务。

2、在SpringBoot项目里面的pom.xml文件中添加九天大模型的相关依赖，后面会使用到其中的一些函数。

3、 在项目中的实体类里面新建一个JiuTian.java文件，用于存储调用模型功能时必须要设置的参数。

4、 在项目的控制层中新建一个JiuTianController.java文件，编写项目的功能接口。九天大模型文生图功能有两类接口，所以我也写了两个接口。

5、 在服务层新建JiuTianService.interface文件，两个项目接口对应的两个服务接口。

6、在工具层新建JiuTianUtil.java文件，里面编写一些功能函数。

7、在服务层中的实现层中新建JiuTianServiceImpl.java文件，把上述两个接口给实现。这里参考了九天大模型官网的调用示例。

 8、在apifox接口软件中调用项目接口测试。

9、查看图片保存结果。图片挺好看的

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1、先到九天大模型的官网（LLM Studio）上订阅模型的推理服务，得到APIKey，后期需要使用它生成token才能调用模型的推理服务。

2、在SpringBoot项目里面的pom.xml文件中添加九天大模型的相关依赖，后面会使用到其中的一些函数。

        <!-- 九天大模型的依赖 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-webflux</artifactId></dependency><dependency><groupId>com.nimbusds</groupId><artifactId>nimbus-jose-jwt</artifactId><version>8.16</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId></dependency><dependency><groupId>com.alibaba.fastjson2</groupId><artifactId>fastjson2</artifactId><version>2.0.26</version></dependency>

3、 在项目中的实体类里面新建一个JiuTian.java文件，用于存储调用模型功能时必须要设置的参数。

public class JiuTian {//调用文生图功能时，给模型的提示语：画一条鱼private String genImgMessage;调用文生图功能时，图像保存的地址private String genImgSavePath;public String getGenImgMessage() {return genImgMessage;}public void setGenImgMessage(String genImgMessage) {this.genImgMessage = genImgMessage;}public String getGenImgSavePath() {return genImgSavePath;}public void setGenImgSavePath(String genImgSavePath) {this.genImgSavePath = genImgSavePath;}
}

4、 在项目的控制层中新建一个JiuTianController.java文件，编写项目的功能接口。九天大模型文生图功能有两类接口，所以我也写了两个接口。

import com.knowledgeBase.entity.JiuTian;
import com.knowledgeBase.permission.PassToken;
import com.knowledgeBase.service.JiuTianService;
import com.nimbusds.jose.JOSEException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;@RestController
@RequestMapping("/JiuTian")
public class JiuTianController {@AutowiredJiuTianService jiuTianService;@PassToken@RequestMapping(value = "/gen_img_cha", method = RequestMethod.POST)public String generate_img_Chat(@RequestBody JiuTian jiuTian) throws JOSEException {return jiuTianService.generate_img_Chat(jiuTian);}@PassToken@RequestMapping(value = "/gen_img_com", method = RequestMethod.POST)public String generate_img_Completions(@RequestBody JiuTian jiuTian) throws JOSEException {return jiuTianService.generate_img_Completions(jiuTian);}
}

5、 在服务层新建JiuTianService.interface文件，两个项目接口对应的两个服务接口。

import com.knowledgeBase.entity.JiuTian;
import com.nimbusds.jose.JOSEException;public interface JiuTianService {String generate_img_Chat(JiuTian jiuTian) throws JOSEException;String generate_img_Completions(JiuTian jiuTian) throws JOSEException;
}

6、在工具层新建JiuTianUtil.java文件，里面编写一些功能函数。

import com.alibaba.fastjson2.JSONObject;
import com.nimbusds.jose.*;
import com.nimbusds.jose.crypto.MACSigner;import java.time.LocalDateTime;
import java.util.Date;public class JiuTianUtils {//获取九天大模型的tokenpublic static String generateToken(String apikey,long expSeconds) throws JOSEException {String[] apikeyArr=apikey.split("\\.",2);//kid.secretDate now=new Date();JSONObject payload=new JSONObject();payload.put("api_key",apikeyArr[0]);payload.put("exp",now.getTime()/1000+expSeconds);payload.put("timestamp",now.getTime()/1000);//创建JWS对象JWSObject jwsObject = new JWSObject(new JWSHeader.Builder(JWSAlgorithm.HS256).type(JOSEObjectType.JWT).build(),new Payload(payload.toJSONString()));//签名jwsObject.sign(new MACSigner(apikeyArr[1]));return jwsObject.serialize();}//获取当前时间设置成字符串public static String getNowTime(){LocalDateTime now = LocalDateTime.now();int year = now.getYear();int month = now.getMonthValue();int day = now.getDayOfMonth();int hour = now.getHour();int minute = now.getMinute();int second = now.getSecond();return year + "-" + month + "-" + day + "-" + hour + "-" + minute + "-" + second;}
}

7、在服务层中的实现层中新建JiuTianServiceImpl.java文件，把上述两个接口给实现。这里参考了九天大模型官网的调用示例。

import com.alibaba.fastjson2.JSONObject;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.knowledgeBase.entity.JiuTian;
import com.knowledgeBase.service.JiuTianService;
import com.knowledgeBase.utils.JiuTianUtils;
import com.nimbusds.jose.JOSEException;
import org.springframework.stereotype.Service;
import org.springframework.web.reactive.function.client.ExchangeStrategies;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicReference;@Service
public class JiuTianServiceImpl implements JiuTianService {// 九天大模型的apikeyprivate static String apiKey = "到九天大模型官网订阅服务里面复制apikey";// 九天大模型的token，有效期需要设置为项目用户登录token一样的有效期private static String jwt_token = null;// 相关工具类private static JiuTianUtils jiuTianUtils = new JiuTianUtils();// 九天大模型token有效期，两天private static Integer token_time = 60 * 60 * 24 * 2;@Overridepublic String generate_img_Completions(JiuTian jiuTian) throws JOSEException {if(jwt_token == null){jwt_token = "Bearer " + jiuTianUtils.generateToken(apiKey, token_time);System.out.println("九天大模型的token已生成: " + jwt_token);}if(jiuTian.getGenImgMessage().isEmpty()){System.out.println("提示语为空！");return "提示语为空！";}if(jiuTian.getGenImgSavePath().isEmpty()){System.out.println("图片存储路径为空！");return "图片存储路径为空！";}// 构建请求体数据JSONObject obj = new JSONObject();obj.put("model", "StableDiffusion");obj.put("prompt", jiuTian.getGenImgMessage());obj.put("returnImageUrl", false);// 格式转换器ObjectMapper objectMapper = new ObjectMapper();//处理结果AtomicReference<String> dealResult = new AtomicReference<>();// 构造线程池ExecutorService nonBlockingService = Executors.newCachedThreadPool();nonBlockingService.execute(() -> {try {// 设置WebClient处理数据时的内存限制ExchangeStrategies strategies = ExchangeStrategies.builder().codecs(codecs -> codecs.defaultCodecs().maxInMemorySize(Integer.MAX_VALUE)).build();Mono<String> mono = WebClient.builder().baseUrl("https://jiutian.10086.cn/largemodel/api/v2/completions").defaultHeader("Authorization", jwt_token).defaultHeader("Content-Type", "application/json").exchangeStrategies(strategies).build().post().bodyValue(obj)//请求体数据.retrieve()//获取响应体.bodyToMono(String.class);//响应数据类型转换mono.subscribe(result -> {System.out.println("响应报文已转成字符串！下面开始解析：");try {JsonNode responseJson = objectMapper.readTree(result);//字符串转JosnString base64_img = responseJson.get("choices").get(0).get("text").asText();//取图像base64字符串byte[] imageBytes = Base64.getDecoder().decode(base64_img);//解码InputStream in = new ByteArrayInputStream(imageBytes);//把字符数组转换成BufferedImageBufferedImage image = ImageIO.read(in);File outputfile = new File(jiuTian.getGenImgSavePath() + "\\output_img_Completions_" + jiuTianUtils.getNowTime() + ".png");//保存图像ImageIO.write(image, "PNG", outputfile);System.out.println("解析完成，生成的图像存储在" + outputfile.getAbsolutePath());dealResult.set("解析完成，生成的图像存储在" + outputfile.getAbsolutePath());} catch (JsonProcessingException e) {throw new RuntimeException(e);} catch (IOException e) {throw new RuntimeException(e);}},error -> {System.out.println("Error: "+ error);dealResult.set("Error: "+ error);},() -> {System.out.println("Completed!");dealResult.set("Completed!");});} catch (Exception e) {throw new RuntimeException(e);};});return dealResult.get();}@Overridepublic String generate_img_Chat(JiuTian jiuTian) throws JOSEException {if (jwt_token == null) {jwt_token = jiuTianUtils.generateToken(apiKey, token_time);System.out.println("九天大模型的token已生成: " + jwt_token);}if(jiuTian.getGenImgMessage().isEmpty()){System.out.println("提示语为空！");return "提示语为空！";}if(jiuTian.getGenImgSavePath().isEmpty()){System.out.println("图片存储路径为空！");return "图片存储路径为空！";}// 构建请求体数据JSONObject obj = new JSONObject();obj.put("model", "StableDiffusion");JSONObject params1 = new JSONObject();params1.put("role", "system");params1.put("content", "你是一位漫画家");JSONObject params2 = new JSONObject();params2.put("role", "user");params2.put("content", jiuTian.getGenImgMessage());List<JSONObject> messages = new ArrayList<>();messages.add(params1);messages.add(params2);obj.put("messages", messages);obj.put("returnImageUrl", false);// 格式转换器ObjectMapper objectMapper = new ObjectMapper();// 处理结果AtomicReference<String> dealResult = new AtomicReference<>();// 构造线程池ExecutorService nonBlockingService = Executors.newCachedThreadPool();nonBlockingService.execute(() -> {try {// 设置WebClient处理数据时的内存限制ExchangeStrategies strategies = ExchangeStrategies.builder().codecs(codecs -> codecs.defaultCodecs().maxInMemorySize(Integer.MAX_VALUE)).build();Mono<String> mono = WebClient.builder().baseUrl("https://jiutian.10086.cn/largemodel/api/v2/chat/completions").defaultHeader("Authorization", "Bearer " + jwt_token).defaultHeader("Content-Type", "application/json").exchangeStrategies(strategies).build().post().bodyValue(obj)//请求体数据.retrieve()//获取响应体.bodyToMono(String.class);//响应数据类型转换mono.subscribe(result -> {System.out.println("响应报文已转成字符串！下面开始解析：");try {JsonNode responseJson = objectMapper.readTree(result);//字符串转JosnString base64_img = responseJson.get("choices").get(0).get("message").get("content").asText();//取图像base64字符串byte[] imageBytes = Base64.getDecoder().decode(base64_img);//解码InputStream in = new ByteArrayInputStream(imageBytes);//把字符数组转换成BufferedImageBufferedImage image = ImageIO.read(in);File outputfile = new File(jiuTian.getGenImgSavePath() + "\\output_img_Completions_" + jiuTianUtils.getNowTime() + ".png");//保存图像ImageIO.write(image, "PNG", outputfile);System.out.println("解析完成，生成的图像存储在" + outputfile.getAbsolutePath());dealResult.set("解析完成，生成的图像存储在" + outputfile.getAbsolutePath());} catch (JsonProcessingException e) {throw new RuntimeException(e);} catch (IOException e) {throw new RuntimeException(e);}},error -> {System.out.println("Error: "+ error);dealResult.set("Error: "+ error);},() -> {System.out.println("Completed!");dealResult.set("Completed!");});} catch (Exception e) {throw new RuntimeException(e);};});return dealResult.get();}
}

 8、在apifox接口软件中调用项目接口测试。

9、查看图片保存结果。图片挺好看的。