import urllib.request
import json

try:
    req = urllib.request.Request('http://localhost:8000/api/templates')
    with urllib.request.urlopen(req, timeout=5) as resp:
        data = json.loads(resp.read().decode('utf-8'))
        print('总数:', len(data))
        models = sorted(set(t['machine_model'] for t in data))
        print('机型:', models)
        types = sorted(set(t['template_type'] for t in data))
        print('模板类型:', types)
except Exception as e:
    print(f'Error: {e}')