feat(dashscope): 实现流式聊天响应

- 升级 spring-ai-alibaba-bom 版本至1.0.0.4- 修改 /chat 接口支持流式返回
- 使用 Flux<String> 替代 String 返回类型
- 设置 produces 为 TEXT_EVENT_STREAM_VALUE 支持 SSE- 调用 stream() 方法替代 call() 实现流式输出

src/main/java/com/hanserwei/snailsai/controller/DashScopeController.java

@@ -2,10 +2,12 @@ package com.hanserwei.snailsai.controller;
 
 import jakarta.annotation.Resource;
 import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.http.MediaType;
 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;
+import reactor.core.publisher.Flux;
 
 @RequestMapping("/dashscope")
 @RestController
@@ -14,11 +16,11 @@ public class DashScopeController {
     @Resource
     private ChatClient dashScopeChatClient;
 
-    @GetMapping("/chat")
-    public String chat(@RequestParam("userPrompt") String userPrompt) {
+    @GetMapping(value = "/chat",produces = MediaType.TEXT_EVENT_STREAM_VALUE)
+    public Flux<String> chat(@RequestParam("userPrompt") String userPrompt) {
         return dashScopeChatClient.prompt()
                 .user(userPrompt)
-                .call()
+                .stream()
                 .content();
     }
 }