Question

我有一个小问题，我不知道如何导入我的程序读取的xml文档，然后验证字符串（true / false），如果是真的保存它们。该程序由程序类，paymentImporter类和接口类组成。我知道我只需要更改paymentImporter类来实现这一点。代码如下：

paymentImporter类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WsPreInterviewTest
{

    public class XmlPaymentImporter : IPaymentImporter
    {
        public XmlPaymentImporter(IDatabaseProvider service_provider)
        {
            //import file

            throw new NotImplementedException();
        }

        public bool ReadFile(string file_path, List<string> errs)
        {

            //read file for validation

            throw new NotImplementedException();
        }

        public bool SaveAll()
        {
            //save if validation ok

            throw new NotImplementedException();
        }
    }
}

Interface Class:




public class Person
{
    public int Recno { get; set; }
    public string Name {get;set;}        
}

public class Payment
{
    public int PersonRecno { get; set; }
    public string Currency { get; set; }
    public decimal Amount { get; set; }
    public string Narrative { get; set; }

}

interface IPaymentImporter
{
    bool ReadFile(string file_path, List<string> errs);
    bool SaveAll();
}

public interface IDatabaseProvider
{
    DatabaseRepository GetDataRepository();
}

public abstract class DatabaseRepository
{
    public DatabaseRepository()
    {

    }


    /// <summary>
    /// returns null if person is not known
    /// </summary>
    /// <param name="name"></param>
    /// <returns></returns>
    public abstract Person FindPerson(string name);

    public abstract bool SavePayment(Payment payment);


}

}

程序类：

class Program
{
    static void Main(string[] args)
    {
        IDatabaseProvider _service_provider = null;
        string example_file = "ExampleFile.xml";
        XmlPaymentImporter importer = new XmlPaymentImporter(_service_provider);
        List<string> errors = new List<string>();
        if (importer.ReadFile(example_file, errors))
        {
            if (!importer.SaveAll())
                Console.WriteLine("Problem saving records");
        }
        else
        {
            Console.WriteLine("Problem With File");
            foreach (string s in errors)
                Console.WriteLine(s);
        }

Answer 1

使用Person和相应的xml类型装饰器装饰您的Payment和[Serializable()]类。然后只需将xml文档反序列化为这些类并捕获异常。 How to Deserialize XML document

我看到的唯一问题是Person课程中没有Payment字段。您尚未提供要反序列化的xml，但如果您将person元素作为付款子级，则具有相同的类结构将使您更容易。您可以调用Deserialize（）并获取完整的数据结构。

导入XML并验证文件

1 个答案: