commit

backend/example_use_damai_proxy.py

@@ -0,0 +1,200 @@
+"""
+大麦固定代理使用示例
+演示如何在实际项目中使用固定代理IP
+"""
+import asyncio
+import sys
+from browser_pool import get_browser_pool
+from damai_proxy_config import get_proxy_1, get_proxy_2, get_random_proxy
+
+
+async def example1_use_specific_proxy():
+    """示例1: 使用指定的代理IP"""
+    print("\n" + "="*60)
+    print("示例1: 使用指定的代理IP（代理1）")
+    print("="*60)
+    
+    # 获取代理1的配置
+    proxy_config = get_proxy_1()
+    print(f"📌 使用代理: {proxy_config['server']}")
+    
+    # 获取浏览器池
+    pool = get_browser_pool()
+    
+    try:
+        # 获取浏览器实例（带代理）
+        # 注意：需要修改browser_pool以支持带认证的代理
+        browser, context, page = await pool.get_browser(
+            proxy=proxy_config["server"]
+        )
+        
+        # 访问测试页面
+        print("🌐 访问IP检测页面...")
+        await page.goto("http://httpbin.org/ip", timeout=30000)
+        
+        # 获取IP信息
+        ip_info = await page.evaluate("() => document.body.innerText")
+        print(f"✅ 当前IP:\n{ip_info}")
+        
+    except Exception as e:
+        print(f"❌ 错误: {str(e)}")
+
+
+async def example2_use_random_proxy():
+    """示例2: 随机使用一个代理IP"""
+    print("\n" + "="*60)
+    print("示例2: 随机使用一个代理IP")
+    print("="*60)
+    
+    # 随机获取一个代理
+    proxy_config = get_random_proxy()
+    print(f"📌 随机选择代理: {proxy_config['name']}")
+    print(f"   服务器: {proxy_config['server']}")
+    
+    # 后续操作类似示例1
+    print("✅ 代理配置已获取，可以用于浏览器实例化")
+
+
+async def example3_use_with_playwright_directly():
+    """示例3: 直接在Playwright中使用代理（带认证）"""
+    print("\n" + "="*60)
+    print("示例3: 直接在Playwright中使用代理（完整认证）")
+    print("="*60)
+    
+    from playwright.async_api import async_playwright
+    
+    # 获取代理配置
+    proxy_config = get_proxy_2()
+    print(f"📌 使用代理2: {proxy_config['server']}")
+    
+    playwright = None
+    browser = None
+    
+    try:
+        # 启动Playwright
+        playwright = await async_playwright().start()
+        
+        # 配置代理（完整配置，包含认证信息）
+        proxy_settings = {
+            "server": proxy_config["server"],
+            "username": proxy_config["username"],
+            "password": proxy_config["password"]
+        }
+        
+        # 启动浏览器
+        browser = await playwright.chromium.launch(
+            headless=True,
+            proxy=proxy_settings,
+            args=['--disable-blink-features=AutomationControlled']
+        )
+        
+        # 创建上下文和页面
+        context = await browser.new_context()
+        page = await context.new_page()
+        
+        # 访问测试页面
+        print("🌐 访问大麦网...")
+        await page.goto("https://www.damai.cn/", timeout=30000)
+        
+        title = await page.title()
+        print(f"✅ 页面标题: {title}")
+        print(f"   当前URL: {page.url}")
+        
+    except Exception as e:
+        print(f"❌ 错误: {str(e)}")
+        
+    finally:
+        if browser:
+            await browser.close()
+        if playwright:
+            await playwright.stop()
+
+
+async def example4_switch_proxy_on_error():
+    """示例4: 代理失败时自动切换"""
+    print("\n" + "="*60)
+    print("示例4: 代理失败时自动切换到另一个代理")
+    print("="*60)
+    
+    from damai_proxy_config import get_all_enabled_proxies
+    from playwright.async_api import async_playwright
+    
+    proxies = get_all_enabled_proxies()
+    print(f"📊 可用代理数: {len(proxies)}")
+    
+    for i, proxy_config in enumerate(proxies):
+        print(f"\n🔄 尝试代理 {i+1}/{len(proxies)}: {proxy_config['name']}")
+        
+        playwright = None
+        browser = None
+        
+        try:
+            # 启动Playwright
+            playwright = await async_playwright().start()
+            
+            # 配置代理
+            proxy_settings = {
+                "server": proxy_config["server"],
+                "username": proxy_config["username"],
+                "password": proxy_config["password"]
+            }
+            
+            # 启动浏览器
+            browser = await playwright.chromium.launch(
+                headless=True,
+                proxy=proxy_settings
+            )
+            
+            context = await browser.new_context()
+            page = await context.new_page()
+            
+            # 测试访问
+            await page.goto("http://httpbin.org/ip", timeout=15000)
+            ip_info = await page.evaluate("() => document.body.innerText")
+            
+            print(f"✅ {proxy_config['name']} 可用")
+            print(f"   IP信息: {ip_info.strip()}")
+            
+            # 成功则退出循环
+            await browser.close()
+            await playwright.stop()
+            break
+            
+        except Exception as e:
+            print(f"⚠️ {proxy_config['name']} 不可用: {str(e)}")
+            if browser:
+                await browser.close()
+            if playwright:
+                await playwright.stop()
+            
+            # 如果是最后一个代理也失败，则报错
+            if i == len(proxies) - 1:
+                print("❌ 所有代理都不可用！")
+
+
+async def main():
+    """运行所有示例"""
+    # Windows环境下设置事件循环策略
+    if sys.platform == 'win32':
+        asyncio.set_event_loop_policy(asyncio.WindowsProactorEventLoopPolicy())
+    
+    print("\n" + "🎯"*30)
+    print("大麦固定代理IP使用示例集")
+    print("🎯"*30)
+    
+    # 示例2: 随机代理
+    await example2_use_random_proxy()
+    
+    # 示例3: 完整的Playwright代理使用
+    await example3_use_with_playwright_directly()
+    
+    # 示例4: 代理容错切换
+    await example4_switch_proxy_on_error()
+    
+    print("\n" + "="*60)
+    print("🎉 所有示例运行完成！")
+    print("="*60)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())