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feat: 对话聊到的请求优化与解析sse优化

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zoujing
2025-08-08 11:07:55 +08:00
parent 1af6fd2e5f
commit 40b58ebdd5
1 changed files with 199 additions and 166 deletions
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127
request/api/AgentChatStream.js
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@@ -12,25 +12,26 @@ const API = '/agent/assistant/chat';
let requestTask = null;
let isAborted = false; // 添加终止状态标志
let currentPromiseReject = null; // 保存当前Promise的reject函数
let requestId = 0; // 请求ID，用于区分不同的请求
let currentMessageId = null; // 当前请求的messageId
/**
* 终止的请求
*/
const stopAbortTask = () => {
console.log('🛑 开始强制终止请求...');
console.log("🛑 开始强制终止请求... ");
isAborted = true; // 立即设置终止标志
// 立即拒绝当前Promise（最强制的终止）
if (currentPromiseReject) {
console.log('🛑 立即拒绝Promise');
currentPromiseReject(new Error('请求已被用户终止'));
currentPromiseReject = null;
}
if (requestTask) {
// 先取消所有监听器（关键：必须在abort之前）
// 先取消所有监听器
try {
if (requestTask.offChunkReceived) {
requestTask.offChunkReceived();
console.log('🛑 已取消 ChunkReceived 监听');
}
} catch (e) {
console.log('🛑 取消 ChunkReceived 监听失败:', e);
@@ -39,7 +40,6 @@ const stopAbortTask = () => {
try {
if (requestTask.offHeadersReceived) {
requestTask.offHeadersReceived();
console.log('🛑 已取消 HeadersReceived 监听');
}
} catch (e) {
console.log('🛑 取消 HeadersReceived 监听失败:', e);
@@ -49,7 +49,6 @@ const stopAbortTask = () => {
try {
if (requestTask.abort) {
requestTask.abort();
console.log('🛑 已终止网络请求');
}
} catch (e) {
console.log('🛑 终止网络请求失败:', e);
@@ -58,9 +57,8 @@ const stopAbortTask = () => {
requestTask = null;
}
// 递增请求ID，使旧请求的数据无效
requestId++;
console.log('🛑 请求强制终止完成，新请求ID:', requestId);
currentMessageId = null;
console.log('🛑 请求强制终止完成');
}
const agentChatStream = (params, onChunk) => {
@@ -72,9 +70,11 @@ const agentChatStream = (params, onChunk) => {
// 保存当前Promise的reject函数，用于强制终止
currentPromiseReject = reject;
// 为当前请求分配ID
const currentRequestId = ++requestId;
console.log("🚀 发送请求内容: ", params, "请求ID:", currentRequestId)
// 设置当前请求的messageId，用于区分不同请求
const messageId = params.messageId;
currentMessageId = messageId; // 记录当前请求的messageId
console.log("🚀 发送请求内容: ", params)
// #ifdef MP-WEIXIN
requestTask = uni.request({
url: BASE_URL + API, // 替换为你的接口地址
@@ -88,46 +88,56 @@ const agentChatStream = (params, onChunk) => {
},
responseType: 'arraybuffer',
success(res) {
if (!isAborted && requestId === currentRequestId) {
console.log("✅ 请求成功，ID:", currentRequestId);
if (!isAborted && currentMessageId === messageId) {
console.log("✅ 请求成功");
resolve(res.data);
} else if (currentMessageId !== messageId) {
console.log("❌ 请求已过期（messageId不匹配），忽略success回调");
} else {
console.log("❌ 请求已过期或终止，忽略success回调，当前ID:", requestId, "请求ID:", currentRequestId);
console.log("❌ 请求已终止，忽略success回调");
}
},
fail(err) {
if (!isAborted && requestId === currentRequestId) {
console.log("❌ 请求失败，ID:", currentRequestId, "错误:", JSON.stringify(err));
if (!isAborted && currentMessageId === messageId) {
console.log("❌ 请求失败，错误:", JSON.stringify(err));
reject(err);
} else if (currentMessageId !== messageId) {
console.log("❌ 请求已过期（messageId不匹配），忽略fail回调");
} else {
console.log("❌ 请求已过期或终止，忽略fail回调，当前ID:", requestId, "请求ID:", currentRequestId);
console.log("❌ 请求已终止，忽略fail回调");
}
},
complete(res) {
if (!isAborted && requestId === currentRequestId && res.statusCode !== 200) {
console.log("❌ 请求完成但状态错误，ID:", currentRequestId, "状态:", res.statusCode);
if (!isAborted && currentMessageId === messageId && res.statusCode !== 200) {
console.log("❌ 请求完成但状态错误，状态:", res.statusCode);
if (onChunk) {
onChunk({ error: true, message: '服务器错误', detail: res });
}
reject(res);
} else if (requestId !== currentRequestId) {
console.log("❌ 请求已过期或终止，忽略complete回调，当前ID:", requestId, "请求ID:", currentRequestId);
} else if (currentMessageId !== messageId) {
console.log("❌ 请求已过期（messageId不匹配），忽略complete回调");
} else if (isAborted) {
console.log("❌ 请求已终止，忽略complete回调");
}
}
});
requestTask.onHeadersReceived(res => {
// 检查请求是否已终止或过期
if (isAborted || requestId !== currentRequestId) {
console.log('🚫 Headers已终止或过期，忽略，当前ID:', requestId, '请求ID:', currentRequestId);
// 检查请求是否已终止或过期（messageId不匹配）
if (isAborted || currentMessageId !== messageId) {
if (currentMessageId !== messageId) {
console.log('🚫 Headers已过期（messageId不匹配），忽略');
} else {
console.log('🚫 Headers已终止，忽略');
}
return;
}
console.log('📡 onHeadersReceived，ID:', currentRequestId, res);
console.log('📡 onHeadersReceived，res:', res);
const status = res.statusCode || (res.header && res.header.statusCode);
if (status && status !== 200) {
hasError = true;
if (onChunk && !isAborted && requestId === currentRequestId) {
if (onChunk && !isAborted && currentMessageId === messageId) {
onChunk({ error: true, message: `服务器错误(${status})`, detail: res });
}
if (requestTask && requestTask.abort) {
@@ -137,13 +147,16 @@ const agentChatStream = (params, onChunk) => {
});
requestTask.onChunkReceived(res => {
// 第一道防线：立即检查请求ID和终止状态
if (isAborted || hasError || requestTask === null || requestId !== currentRequestId) {
console.log('🚫 数据块已终止或过期，忽略 - 第一道检查，当前ID:', requestId, '请求ID:', currentRequestId);
// 第一道防线：立即检查终止状态和messageId（防止处理过期请求）
if (isAborted || hasError || requestTask === null || currentMessageId !== messageId) {
if (currentMessageId !== messageId) {
console.log('🚫 数据块已过期（messageId不匹配），忽略 - 第一道检查');
} else {
console.log('🚫 数据块已终止或无效，忽略 - 第一道检查');
}
return;
}
console.log("📦 onChunkReceived，ID:", currentRequestId, res)
const base64 = uni.arrayBufferToBase64(res.data);
let data = '';
try {
@@ -152,21 +165,27 @@ const agentChatStream = (params, onChunk) => {
// 某些平台可能不支持 atob，可以直接用 base64
data = base64;
}
console.log("📦 onChunkReceived，res:", data)
// 第二道防线：解析前再次检查
if (isAborted || hasError || requestTask === null || requestId !== currentRequestId) {
console.log('🚫 数据块已终止或过期，忽略 - 第二道检查，当前ID:', requestId, '请求ID:', currentRequestId);
if (isAborted || hasError || requestTask === null || currentMessageId !== messageId) {
if (currentMessageId !== messageId) {
console.log('🚫 数据块已过期（messageId不匹配），忽略 - 第二道检查');
} else {
console.log('🚫 数据块已终止或无效，忽略 - 第二道检查');
}
return;
}
const messages = parseSSEChunk(data);
messages.forEach(msg => {
// 第三道防线：每个消息处理前都检查
if (onChunk && !isAborted && !hasError && requestTask !== null && requestId === currentRequestId) {
console.log(`parseSSEChunk ${currentRequestId}:`, msg)
// 第三道防线：每个消息处理前都检查（确保只处理当前请求的消息）
if (onChunk && !isAborted && !hasError && requestTask !== null && currentMessageId === messageId) {
onChunk(msg);
} else if (currentMessageId !== messageId) {
console.log('🚫 消息已过期（messageId不匹配），忽略处理');
} else {
console.log('🚫 消息已终止或过期，忽略处理，当前ID:', requestId, '请求ID:', currentRequestId);
console.log('🚫 消息已终止或无效，忽略处理');
}
});
});
@@ -226,22 +245,36 @@ const weAtob = (string) => {
// 解析SSE分段数据
function parseSSEChunk(raw) {
// 拆分为多段
const lines = raw.split('\n\n');
const parseSSEChunk = (raw) => {
const results = [];
lines.forEach(line => {
// 只处理包含 data: 的行
const dataMatch = line.match(/data:(\{.*\})/);
if (dataMatch && dataMatch[1]) {
// 按一个或多个连续换行分段，表示每一个事件块
const chunks = raw.split(/\n\n+/);
for (const chunk of chunks) {
const lines = chunk.split(/\r?\n/);
let dataLines = [];
for (const line of lines) {
if (line.startsWith('data:')) {
// 提取data:后面的内容并去除首尾空格
dataLines.push(line.slice(5).trim());
}
}
if (dataLines.length > 0) {
// 拼接多行数据
const fullData = dataLines.join('\n');
try {
const obj = JSON.parse(dataMatch[1]);
const obj = JSON.parse(fullData);
results.push(obj);
} catch (e) {
console.warn('⚠️ SSE数据解析失败:', e, '原始数据:', fullData);
// 解析失败忽略
}
}
});
}
return results;
}