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quick_oracle_test.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+快速Oracle连接测试脚本
+用于快速诊断Oracle连接问题
+"""
+
+import oracledb
+import logging
+from config import DatabaseConfig
+
+# 配置日志
+logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
+logger = logging.getLogger(__name__)
+
+def test_oracle_connection():
+    """
+    测试Oracle连接的多种方式
+    """
+    # 获取Oracle配置
+    config = DatabaseConfig.get_config("oracle")
+    
+    print("=" * 60)
+    print("快速Oracle连接测试")
+    print("=" * 60)
+    print(f"配置信息:")
+    print(f"  主机: {config['host']}")
+    print(f"  端口: {config['port']}")
+    print(f"  用户名: {config['username']}")
+    print(f"  服务名: {config['service_name']}")
+    print("=" * 60)
+    
+    # 测试方式列表
+    test_methods = [
+        {
+            'name': '方式1: Easy Connect字符串',
+            'params': {
+                'user': config['username'],
+                'password': config['password'],
+                'dsn': f"{config['host']}:{config['port']}/{config['service_name']}"
+            }
+        },
+        {
+            'name': '方式2: 分离参数 (service_name)',
+            'params': {
+                'user': config['username'],
+                'password': config['password'],
+                'host': config['host'],
+                'port': config['port'],
+                'service_name': config['service_name']
+            }
+        },
+        {
+            'name': '方式3: makedsn (service_name)',
+            'params': {
+                'user': config['username'],
+                'password': config['password'],
+                'dsn': oracledb.makedsn(config['host'], config['port'], service_name=config['service_name'])
+            }
+        },
+        {
+            'name': '方式4: makedsn (SID)',
+            'params': {
+                'user': config['username'],
+                'password': config['password'],
+                'dsn': oracledb.makedsn(config['host'], config['port'], sid=config['service_name'])
+            }
+        }
+    ]
+    
+    success_count = 0
+    
+    for i, method in enumerate(test_methods, 1):
+        print(f"\n🔍 测试 {method['name']}...")
+        
+        try:
+            # 显示连接参数
+            if 'dsn' in method['params']:
+                print(f"   DSN: {method['params']['dsn']}")
+            else:
+                print(f"   Host: {method['params']['host']}:{method['params']['port']}")
+                if 'service_name' in method['params']:
+                    print(f"   Service Name: {method['params']['service_name']}")
+            
+            # 尝试连接
+            connection = oracledb.connect(**method['params'])
+            
+            # 测试查询
+            cursor = connection.cursor()
+            cursor.execute("SELECT 1 FROM DUAL")
+            result = cursor.fetchone()
+            
+            # 获取数据库信息
+            cursor.execute("SELECT BANNER FROM V$VERSION WHERE ROWNUM = 1")
+            version = cursor.fetchone()
+            
+            cursor.close()
+            connection.close()
+            
+            print(f"   ✅ 连接成功!")
+            print(f"   📊 查询结果: {result}")
+            print(f"   🔖 数据库版本: {version[0] if version else 'Unknown'}")
+            
+            success_count += 1
+            
+        except Exception as e:
+            print(f"   ❌ 连接失败: {str(e)}")
+            
+            # 分析常见错误
+            error_str = str(e).lower()
+            if 'ora-12514' in error_str:
+                print(f"   💡 提示: ORA-12514错误通常表示服务名不存在或未注册")
+            elif 'ora-12541' in error_str:
+                print(f"   💡 提示: ORA-12541错误通常表示监听器未运行")
+            elif 'ora-01017' in error_str:
+                print(f"   💡 提示: ORA-01017错误表示用户名或密码无效")
+            elif 'ora-12170' in error_str:
+                print(f"   💡 提示: ORA-12170错误表示连接超时")
+    
+    print("\n" + "=" * 60)
+    print(f"测试结果: {success_count}/{len(test_methods)} 种方式成功")
+    
+    if success_count == 0:
+        print("\n🔧 所有连接方式都失败，可能的解决方案:")
+        print("1. 检查Oracle数据库服务是否正在运行")
+        print("2. 检查监听器状态: lsnrctl status")
+        print("3. 验证服务名是否正确注册")
+        print("4. 检查网络连接和防火墙设置")
+        print("5. 确认用户名和密码正确")
+        print("6. 尝试使用Oracle SQL Developer或其他客户端工具测试连接")
+    elif success_count < len(test_methods):
+        print("\n⚠️  部分连接方式成功，建议使用成功的连接方式")
+    else:
+        print("\n🎉 所有连接方式都成功!")
+    
+    print("=" * 60)
+    
+    return success_count > 0
+
+if __name__ == "__main__":
+    test_oracle_connection()