物流配送管理系统搭建：从选型到上线，适配业务的数字化工具落地指南

// 路线优化算法示例
public class RouteOptimizer
{
    // 计算最短路径
    public List CalculateShortestPath(List destinations, Location warehouse)
    {
        // 实现Dijkstra算法或A*算法
        // 这里使用简化版的最近邻算法
        var unvisited = new List(destinations);
        var route = new List { warehouse };
        
        Location current = warehouse;
        while (unvisited.Count > 0)
        {
            // 寻找最近的目的地
            Location nearest = null;
            double minDistance = double.MaxValue;
            
            foreach (Location location in unvisited)
            {
                double distance = CalculateDistance(current, location);
                if (distance < minDistance)
                {
                    minDistance = distance;
                    nearest = location;
                }
            }
            
            if (nearest != null)
            {
                route.Add(nearest);
                unvisited.Remove(nearest);
                current = nearest;
            }
        }
        
        route.Add(warehouse); // 返回仓库
        return route;
    }
    
    // 计算两点间距离（简化版）
    private double CalculateDistance(Location loc1, Location loc2)
    {
        return Math.Sqrt(Math.Pow(loc1.X - loc2.X, 2) + Math.Pow(loc1.Y - loc2.Y, 2));
    }
}

-- 创建订单表
CREATE TABLE Orders (
    OrderID INT PRIMARY KEY IDENTITY,
    CustomerID INT NOT NULL,
    OrderDate DATETIME NOT NULL,
    DeliveryAddress NVARCHAR(255) NOT NULL,
    ExpectedDelivery DATETIME,
    Status INT NOT NULL DEFAULT 0,
    CONSTRAINT FK_Orders_Customers FOREIGN KEY (CustomerID) REFERENCES Customers(CustomerID)
);

-- 创建配送路线表
CREATE TABLE DeliveryRoutes (
    RouteID INT PRIMARY KEY IDENTITY,
    DriverID INT NOT NULL,
    VehicleID INT NOT NULL,
    StartTime DATETIME NOT NULL,
    EstimatedEndTime DATETIME,
    ActualEndTime DATETIME,
    Status INT NOT NULL DEFAULT 0,
    CONSTRAINT FK_Routes_Drivers FOREIGN KEY (DriverID) REFERENCES Drivers(DriverID),
    CONSTRAINT FK_Routes_Vehicles FOREIGN KEY (VehicleID) REFERENCES Vehicles(VehicleID)
);

// 前端性能监控示例
class PerformanceMonitor {
  // 记录页面加载时间
  trackPageLoad() {
    window.addEventListener('load', () => {
      const loadTime = performance.now();
      this.sendMetrics('page_load', loadTime);
    });
  }
  
  // 发送性能指标到后端
  sendMetrics(metricName, value) {
    fetch('/api/performance-metrics', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        name: metricName,
        value: value,
        timestamp: new Date().toISOString()
      })
    });
  }
}

// 初始化性能监控
const monitor = new PerformanceMonitor();
monitor.trackPageLoad();