Doubao.py
8.62 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
# AIfeng/2024-12-19
# 豆包大模型API实现
# 基于火山引擎豆包API: https://www.volcengine.com/docs/82379/1494384
import os
import json
import requests
from typing import Dict, List, Any, Optional
from logger import logger
class Doubao:
"""豆包大模型API客户端"""
def __init__(self, config_path: str = "config/doubao_config.json"):
"""初始化豆包模型
Args:
config_path: 配置文件路径
"""
self.config_file = config_path
self.config = self._load_config(config_path)
self.api_key = os.getenv("DOUBAO_API_KEY") or self.config.get("api_key")
self.base_url = self.config.get("base_url", "https://ark.cn-beijing.volces.com/api/v3")
self.model = self.config.get("model", "ep-20241219000000-xxxxx")
self.character_config = self.config.get("character", {})
if not self.api_key:
raise ValueError("豆包API密钥未配置，请设置环境变量DOUBAO_API_KEY或在配置文件中设置api_key")
def _load_config(self, config_path: str) -> Dict[str, Any]:
"""加载配置文件"""
try:
with open(config_path, 'r', encoding='utf-8') as f:
return json.load(f)
except FileNotFoundError:
logger.warning(f"配置文件 {config_path} 不存在，使用默认配置")
return {}
except json.JSONDecodeError as e:
logger.error(f"配置文件格式错误: {e}")
return {}
def _build_system_message(self) -> str:
"""构建系统消息"""
character = self.character_config
system_prompt = character.get("base_prompt", "你是一个AI助手")
# 添加角色设定
if character.get("name"):
system_prompt += f"，你的名字是{character['name']}"
if character.get("personality"):
system_prompt += f"，性格特点：{character['personality']}"
if character.get("background"):
system_prompt += f"，背景设定：{character['background']}"
if character.get("speaking_style"):
system_prompt += f"，说话风格：{character['speaking_style']}"
if character.get("constraints"):
system_prompt += f"，行为约束：{character['constraints']}"
return system_prompt
def chat(self, message: str, history: Optional[List[Dict[str, str]]] = None) -> str:
"""发送聊天请求
Args:
message: 用户消息
history: 对话历史
Returns:
AI回复内容
"""
url = f"{self.base_url}/chat/completions"
headers = {
"Authorization": f"Bearer {self.api_key}",
"Content-Type": "application/json"
}
# 构建消息列表
messages = []
# 添加系统消息
system_message = self._build_system_message()
messages.append({
"role": "system",
"content": system_message
})
# 添加历史对话
if history:
messages.extend(history)
# 添加当前用户消息
messages.append({
"role": "user",
"content": message
})
# 构建请求数据
data = {
"model": self.model,
"messages": messages,
"stream": self.config.get("stream", True),
"max_tokens": self.config.get("max_tokens", 1024),
"temperature": self.config.get("temperature", 0.7),
"top_p": self.config.get("top_p", 0.9)
}
try:
response = requests.post(url, headers=headers, json=data, timeout=30)
response.raise_for_status()
if self.config.get("stream", True):
return self._handle_stream_response(response)
else:
result = response.json()
return result["choices"][0]["message"]["content"]
except requests.exceptions.RequestException as e:
logger.error(f"豆包API请求失败: {e}")
return "抱歉，我现在无法回答您的问题，请稍后再试。"
except Exception as e:
logger.error(f"豆包API处理异常: {e}")
return "抱歉，处理您的请求时出现了问题。"
def _handle_stream_response(self, response) -> str:
"""处理流式响应"""
result = ""
try:
for line in response.iter_lines():
if line:
line = line.decode('utf-8')
if line.startswith('data: '):
data_str = line[6:]
if data_str.strip() == '[DONE]':
break
try:
data = json.loads(data_str)
if 'choices' in data and len(data['choices']) > 0:
delta = data['choices'][0].get('delta', {})
content = delta.get('content', '')
if content:
result += content
except json.JSONDecodeError:
continue
return result
except Exception as e:
logger.error(f"处理流式响应失败: {e}")
return "抱歉，处理响应时出现问题。"
def chat_stream(self, message: str, history: Optional[List[Dict[str, str]]] = None, callback=None):
"""流式聊天，支持回调函数处理每个token
Args:
message: 用户消息
history: 对话历史
callback: 回调函数，接收每个生成的token
"""
url = f"{self.base_url}/chat/completions"
headers = {
"Authorization": f"Bearer {self.api_key}",
"Content-Type": "application/json"
}
# 构建消息列表
messages = []
# 添加系统消息
system_message = self._build_system_message()
messages.append({
"role": "system",
"content": system_message
})
# 添加历史对话
if history:
messages.extend(history)
# 添加当前用户消息
messages.append({
"role": "user",
"content": message
})
# 构建请求数据
data = {
"model": self.model,
"messages": messages,
"stream": True,
"max_tokens": self.config.get("max_tokens", 1024),
"temperature": self.config.get("temperature", 0.7),
"top_p": self.config.get("top_p", 0.9)
}
try:
response = requests.post(url, headers=headers, json=data, stream=True, timeout=30)
response.raise_for_status()
result = ""
for line in response.iter_lines():
if line:
line = line.decode('utf-8')
if line.startswith('data: '):
data_str = line[6:]
if data_str.strip() == '[DONE]':
break
try:
data = json.loads(data_str)
if 'choices' in data and len(data['choices']) > 0:
delta = data['choices'][0].get('delta', {})
content = delta.get('content', '')
if content:
result += content
if callback:
callback(content)
except json.JSONDecodeError:
continue
return result
except Exception as e:
logger.error(f"豆包流式API请求失败: {e}")
if callback:
callback("抱歉，我现在无法回答您的问题，请稍后再试。")
return "抱歉，我现在无法回答您的问题，请稍后再试。"
def test_doubao():
"""测试豆包API"""
try:
doubao = Doubao()
response = doubao.chat("你好，请介绍一下自己")
print(f"豆包回复: {response}")
except Exception as e:
print(f"测试失败: {e}")
if __name__ == "__main__":
test_doubao()