feat(ai): 切换默认模型并新增流式对话接口- 将默认模型从 deepseek-chat 切换为 deepseek-reasoner
- 新增 /ai/generateStream 接口支持流式对话输出 - 新增 /v1/ai/generateStream 接口支持 reasoning 内容流式输出 - 引入 commons-lang3 依赖用于字符串处理- 添加 Flux 支持实现异步流式响应 - 完善 DeepSeekAssistantMessage 处理逻辑,区分推理内容与最终回答
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package com.hanserwei.airobot.controller;
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import jakarta.annotation.Resource;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.ai.chat.messages.UserMessage;
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import org.springframework.ai.chat.prompt.Prompt;
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import org.springframework.ai.deepseek.DeepSeekAssistantMessage;
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import org.springframework.ai.deepseek.DeepSeekChatModel;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import reactor.core.publisher.Flux;
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@RestController
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@RequestMapping("/v1/ai")
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public class DeepSeekR1ChatController {
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@Resource
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private DeepSeekChatModel chatModel;
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/**
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* 流式对话
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* @param message 对话输入内容
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* @return 对话结果
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*/
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@GetMapping(value = "/generateStream", produces = "text/html;charset=utf-8")
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public Flux<String> generateStream(@RequestParam(value = "message", defaultValue = "你是谁?") String message) {
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// 构建提示词
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Prompt prompt = new Prompt(new UserMessage(message));
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// 流式输出
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return chatModel.stream(prompt)
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.mapNotNull(chatResponse -> {
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// 获取响应内容
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DeepSeekAssistantMessage deepSeekAssistantMessage = (DeepSeekAssistantMessage) chatResponse.getResult().getOutput();
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// 推理内容
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String reasoningContent = deepSeekAssistantMessage.getReasoningContent();
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// 推理结束后的正式回答
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String text = deepSeekAssistantMessage.getText();
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// 若推理内容有值,则响应推理内容,否则,说明推理结束了,响应正式回答
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return StringUtils.isNotBlank(reasoningContent) ? reasoningContent : text;
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});
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}
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}
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