1、当我们使用大模型问

请告诉我现在北京时间几点了

回答如下

此时就需要大模型的 function call 的功能，也就是 给大模型加上工具

2、代码如下

获取时间的工具类

package com.alibaba.cloud.ai.example.chat.ollama.tools.time;

import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

/**
 * @author yingzi
 * @date 2025/3/27:10:56
 */
public class TimeUtils {

    public static String getTimeByZoneId(String zoneId) {

        // Get the time zone using ZoneId
        ZoneId zid = ZoneId.of(zoneId);

        // Get the current time in this time zone
        ZonedDateTime zonedDateTime = ZonedDateTime.now(zid);

        // Defining a formatter
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss z");

        // Format ZonedDateTime as a string
        String formattedDateTime = zonedDateTime.format(formatter);

        return formattedDateTime;
    }
}

获取时间的工具

package com.alibaba.cloud.ai.example.chat.ollama.tools.time.method;

import com.alibaba.cloud.ai.example.chat.ollama.tools.time.TimeUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.ai.tool.annotation.Tool;
import org.springframework.ai.tool.annotation.ToolParam;

public class TimeTools {
    private static final Logger logger = LoggerFactory.getLogger(TimeTools.class);

    @Tool(description = "Get the time of a specified city.")
    public String  getCityTimeMethod(@ToolParam(description = "Time zone id, such as Asia/Shanghai") String timeZoneId) {
        logger.info("The current time zone is {}", timeZoneId);
        return String.format("The current time zone is %s and the current time is " + "%s", timeZoneId,
                TimeUtils.getTimeByZoneId(timeZoneId));
    }
}

controller代码如下

package com.alibaba.cloud.ai.example.chat.ollama.controller;

import com.alibaba.cloud.ai.example.chat.ollama.tools.time.method.TimeTools;
import org.springframework.ai.chat.client.ChatClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/time")
public class TimeController {

    private final ChatClient ollamaiChatClient;

    public TimeController(ChatClient.Builder chatClientBuilder) {
        this.ollamaiChatClient = chatClientBuilder.build();
    }

    /**
     * 无工具版
     */
    @GetMapping("/chat")
    public String simpleChat(@RequestParam(value = "query", defaultValue = "请告诉我现在北京时间几点了") String query) {
        return ollamaiChatClient.prompt(query).call().content();
    }

    /**
     * 调用工具版 - function
     */
    @GetMapping("/chat-tool-function")
    public String chatTranslateFunction(@RequestParam(value = "query", defaultValue = "请告诉我现在北京时间几点了") String query) {
        return ollamaiChatClient.prompt(query).tools("getCityTimeFunction").call().content();
    }

    /**
     * 调用工具版 - method
     */
    @GetMapping("/chat-tool-method")
    public String chatTranslateMethod(@RequestParam(value = "query", defaultValue = "请告诉我现在北京时间几点了") String query) {
        return ollamaiChatClient.prompt(query).tools(new TimeTools()).call().content();
    }

}

调用接口  http://127.0.0.1:10005/time/chat-tool-method  如下