【五】springAi函数调用

对于springAi的tools功能，我还是那句话，真香。他把我很繁琐的接口调用直接很优雅的实现了

1. 查询天气例子

@RestController
public class ToolController {
    @Resource(name = "QWenChatClient")
    private ChatClient qwenChatClient;
    @GetMapping(value = "/tool", produces = "text/stream;charset=UTF-8")
    public Flux<String> tool_1(@RequestParam("question")String question){
        return qwenChatClient
                .prompt()
                .user(question).stream().content();
    }}

@Configuration
public class ChatClientConfig {
    @Resource
    private ToolService toolService;
    @Bean(name = "QWenChatClient")
    public ChatClient qwenChatClient(DashScopeChatModel dashScopeChatModel) {
        DashScopeChatOptions dashScopeChatOptions = new DashScopeChatOptions();
        dashScopeChatOptions.setModel("qwen-max");
        return ChatClient
                .builder(dashScopeChatModel)
                .defaultOptions(dashScopeChatOptions)
                .defaultTools(toolService)
                .build();
    }}

@Service
public class ToolService {
    private static final String data = "{\"message\":\"success感谢又拍云(upyun.com)提供CDN赞助\",\"status\":200,\"date\":\"20250908\",\"time\":\"2025-09-08 22:16:48\",\"cityInfo\":{\"city\":\"天津市\",\"citykey\":\"101030100\",\"parent\":\"天津\",\"updateTime\":\"20:07\"},\"data\":{\"shidu\":\"59%\",\"pm25\":14,\"pm10\":43,\"quality\":\"优\",\"wendu\":\"27.9\",\"ganmao\":\"各类人群可自由活动\",\"forecast\":[{\"date\":\"08\",\"high\":\"高温 29℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-08\",\"week\":\"星期一\",\"sunrise\":\"05:46\",\"sunset\":\"18:31\",\"aqi\":51,\"fx\":\"东南风\",\"fl\":\"2级\",\"type\":\"多云\",\"notice\":\"阴晴之间，谨防紫外线侵扰\"},{\"date\":\"09\",\"high\":\"高温 30℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-09\",\"week\":\"星期二\",\"sunrise\":\"05:47\",\"sunset\":\"18:30\",\"aqi\":56,\"fx\":\"西南风\",\"fl\":\"3级\",\"type\":\"晴\",\"notice\":\"愿你拥有比阳光明媚的心情\"},{\"date\":\"10\",\"high\":\"高温 30℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-10\",\"week\":\"星期三\",\"sunrise\":\"05:47\",\"sunset\":\"18:28\",\"aqi\":61,\"fx\":\"南风\",\"fl\":\"3级\",\"type\":\"晴\",\"notice\":\"愿你拥有比阳光明媚的心情\"},{\"date\":\"11\",\"high\":\"高温 28℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-11\",\"week\":\"星期四\",\"sunrise\":\"05:48\",\"sunset\":\"18:26\",\"aqi\":54,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"阴\",\"notice\":\"不要被阴云遮挡住好心情\"},{\"date\":\"12\",\"high\":\"高温 26℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-12\",\"week\":\"星期五\",\"sunrise\":\"05:49\",\"sunset\":\"18:25\",\"aqi\":53,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"多云\",\"notice\":\"阴晴之间，谨防紫外线侵扰\"},{\"date\":\"13\",\"high\":\"高温 28℃\",\"low\":\"低温 22℃\",\"ymd\":\"2025-09-13\",\"week\":\"星期六\",\"sunrise\":\"05:50\",\"sunset\":\"18:23\",\"aqi\":54,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"多云\",\"notice\":\"阴晴之间，谨防紫外线侵扰\"},{\"date\":\"14\",\"high\":\"高温 30℃\",\"low\":\"低温 22℃\",\"ymd\":\"2025-09-14\",\"week\":\"星期日\",\"sunrise\":\"05:51\",\"sunset\":\"18:21\",\"aqi\":44,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"阴\",\"notice\":\"不要被阴云遮挡住好心情\"},{\"date\":\"15\",\"high\":\"高温 28℃\",\"low\":\"低温 21℃\",\"ymd\":\"2025-09-15\",\"week\":\"星期一\",\"sunrise\":\"05:52\",\"sunset\":\"18:20\",\"aqi\":46,\"fx\":\"南风\",\"fl\":\"2级\",\"type\":\"小雨\",\"notice\":\"雨虽小，注意保暖别感冒\"},{\"date\":\"16\",\"high\":\"高温 24℃\",\"low\":\"低温 19℃\",\"ymd\":\"2025-09-16\",\"week\":\"星期二\",\"sunrise\":\"05:53\",\"sunset\":\"18:18\",\"aqi\":38,\"fx\":\"东北风\",\"fl\":\"2级\",\"type\":\"小雨\",\"notice\":\"雨虽小，注意保暖别感冒\"},{\"date\":\"17\",\"high\":\"高温 19℃\",\"low\":\"低温 16℃\",\"ymd\":\"2025-09-17\",\"week\":\"星期三\",\"sunrise\":\"05:54\",\"sunset\":\"18:17\",\"aqi\":25,\"fx\":\"东北风\",\"fl\":\"2级\",\"type\":\"小雨\",\"notice\":\"雨虽小，注意保暖别感冒\"},{\"date\":\"18\",\"high\":\"高温 21℃\",\"low\":\"低温 16℃\",\"ymd\":\"2025-09-18\",\"week\":\"星期四\",\"sunrise\":\"05:55\",\"sunset\":\"18:15\",\"aqi\":20,\"fx\":\"西北风\",\"fl\":\"2级\",\"type\":\"阴\",\"notice\":\"不要被阴云遮挡住好心情\"},{\"date\":\"19\",\"high\":\"高温 21℃\",\"low\":\"低温 16℃\",\"ymd\":\"2025-09-19\",\"week\":\"星期五\",\"sunrise\":\"05:56\",\"sunset\":\"18:13\",\"aqi\":27,\"fx\":\"西北风\",\"fl\":\"2级\",\"type\":\"阴\",\"notice\":\"不要被阴云遮挡住好心情\"},{\"date\":\"20\",\"high\":\"高温 27℃\",\"low\":\"低温 17℃\",\"ymd\":\"2025-09-20\",\"week\":\"星期六\",\"sunrise\":\"05:56\",\"sunset\":\"18:12\",\"aqi\":40,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"阴\",\"notice\":\"不要被阴云遮挡住好心情\"},{\"date\":\"21\",\"high\":\"高温 25℃\",\"low\":\"低温 17℃\",\"ymd\":\"2025-09-21\",\"week\":\"星期日\",\"sunrise\":\"05:57\",\"sunset\":\"18:10\",\"aqi\":46,\"fx\":\"东风\",\"fl\":\"2级\",\"type\":\"多云\",\"notice\":\"阴晴之间，谨防紫外线侵扰\"},{\"date\":\"22\",\"high\":\"高温 29℃\",\"low\":\"低温 16℃\",\"ymd\":\"2025-09-22\",\"week\":\"星期一\",\"sunrise\":\"05:58\",\"sunset\":\"18:09\",\"aqi\":48,\"fx\":\"西北风\",\"fl\":\"1级\",\"type\":\"小雨\",\"notice\":\"雨虽小，注意保暖别感冒\"}],\"yesterday\":{\"date\":\"07\",\"high\":\"高温 30℃\",\"low\":\"低温 20℃\",\"ymd\":\"2025-09-07\",\"week\":\"星期日\",\"sunrise\":\"05:45\",\"sunset\":\"18:33\",\"aqi\":54,\"fx\":\"西南风\",\"fl\":\"2级\",\"type\":\"晴\",\"notice\":\"愿你拥有比阳光明媚的心情\"}}}";
    /**
     * 查询天气
     */
    @Tool(description = "查询天气")
    public String queryQuestion(
            @ToolParam(description = "地点")String location,
            @ToolParam(description = "时间")String date
    ){
        System.out.println(location);
        System.out.println(date);
        return data;
    }
}

当正常询问时返回值是正确的

当询问天气的时候

然后当我们想要返回函数调用的大模型返回的值的时候，只需要加个系统提示词，并且把tool修改一下就行

  @Tool(description = "查询天气")
    public String queryQuestion(
            @ToolParam(description = "地点")String location,
            @ToolParam(description = "时间")String date
    ){
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("location",location);
        jsonObject.put("date",date);
        return jsonObject.toJSONString();
    }

   @GetMapping(value = "/tool2", produces = "text/stream;charset=UTF-8")
    public Flux<String> tool_2(@RequestParam("question")String question){
        return qwenChatClient
                .prompt()
                .system("你是一个严格的函数调用回声器：当调用工具后，直接将工具返回的内容原样输出，不要添加任何额外文字、解释或格式。")
                .user(question).stream().content();
    }