2.2 KiB
2.2 KiB
手动测试问题
页面(pages/tool/ai-nutritionist)
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- 请求后页面显示:"未能获取到有效回复。" fetch("http://127.0.0.1:20822/api/front/coze/chat/stream", { "headers": { "accept": "/", "authori-zation": "6f6767b2edc64949b0e4888c199ac0bb", "content-type": "application/json", "sec-fetch-dest": "empty", "sec-fetch-mode": "cors", "sec-fetch-site": "same-site" }, "referrer": "https://servicewechat.com/wx7ecf3e3699353c69/devtools/page-frame.html", "referrerPolicy": "strict-origin-when-cross-origin", "body": "{"botId":"7591133240535449654","userId":11,"additionalMessages":[{"role":"user","content":"透析患者可以喝牛奶吗?","content_type":"text"}],"stream":true,"autoSaveHistory":true}", "method": "POST", "mode": "cors", "credentials": "omit" });
修复记录
问题 1 修复:流式对话显示"未能获取到有效回复"
根因分析:两个问题导致前端无法正确接收流式数据:
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Delta 事件过滤条件过严 —
ai-nutritionist.vue中sendToAIStream()对conversation.message.delta事件要求evt.role === 'assistant' && evt.type === 'answer'。但 Coze SDK 在流式增量事件中可能不返回role和type字段(后端发送的精简 JSON 仅在字段非 null 时才包含),导致所有增量内容被静默丢弃。 -
未处理非分块响应降级 —
cozeChatStream()中success回调未处理响应体。在微信开发者工具或某些不支持onChunkReceived的环境下,流式数据仅在res.data中一次性返回,但被完全忽略。
修复内容:
ai-nutritionist.vue:将 delta 过滤改为const role = evt.role || 'assistant',缺失字段时默认为预期值。models-api.js:增加_gotChunks标记,当onChunkReceived未触发时,在success回调中解析res.data作为降级处理;增加responseType: 'text'确保响应体为字符串。
参考文档
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- /Users/a123/msh-system/.cursor/plans/optimize_ai_nutritionist_speed_b6e9a618.plan.md
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- /Users/a123/msh-system/docs/测试问题分析报告_2026-03-22.md
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- /Users/a123/msh-system/docs/功能开发详细设计_2026-03-25.md