1.使用Swift反射将同样类型的obj2中非空字符串属性复制到obj1

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class AegReflectUtils {
    
    /// 使用Swift反射将obj2中非空字符串属性复制到obj1
    /// 注意：要求对象继承自NSObject且属性标记为@objc
    static func copyObj2ToObj1(_ obj1: NSObject, _ obj2: NSObject) {
        let mirror = Mirror(reflecting: obj2)
        
        for child in mirror.children {
            guard let propertyName = child.label else { continue }
            
            // 过滤不需要处理的属性
            if shouldSkip(property: propertyName) {
                continue
            }
            
            // 验证属性类型为String且非空
            guard let stringValue = child.value as? String, !stringValue.isEmpty else {
                continue
            }
            
            // 使用KVC设置属性值，添加异常处理
            obj1.setValue(stringValue, forKey: propertyName)
        }
    }
    
    private static func shouldSkip(property: String) -> Bool {
        // 过滤黑名单属性
        let blacklist = ["Companion", "serialVersionUID"]
        return blacklist.contains(property)
    }
}

2.对象代码

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@objc class AegDevice: NSObject {
    @objc var name: String?
    @objc var room: String?
    @objc var model: String?
    @objc var mac: String?
    @objc var ip: String?
    @objc var version: String?
    @objc var type: String? = nil
    @objc var status: String? = nil

    var desc: String {
        return "name: \(name ?? ""), room: \(room ?? ""), model: \(model ?? ""), mac: \(mac ?? ""), ip: \(ip ?? ""), version: \(version ?? ""), type: \(type ?? ""), status: \(status ?? "")"
    }
}

测试代码

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private func test() {
  let obj2 = AegDevice()
  obj2.name = "test"
  obj2.room = "room"
  obj2.model = "model"

  let obj1 = AegDevice()
  obj1.mac = "mac"
  obj1.ip = "ip"
  obj1.version = "version"
  obj1.type = "type"
  obj1.status = "status"

  AegReflectUtils.copyObj2ToObj1(obj1, obj2)
  ASLog(obj1.desc)
  ASLog(obj2.desc)
}