阅读目录

• 1.WCF自带的压缩方式进行压缩数据及传输数据
• 2.使用JSON格式的数据进行传输
• 3.通过Json+压缩的方式传输
• 4.通过压缩或Json格式化需要注意什么？
• 5.参考资料

1.当遇到需要传输大量数据时，怎么样传输数据？

2.压缩数据有哪几种常见的方式？

问题1解答：通过压缩来传输数据

问题2解答：

            （1）WCF自带的压缩方式

            （2）自定义WCF binding进行压缩

            （3）将对象序列化为JSON格式

using System;
using System.ServiceModel;
using Jackson0714.WcfServices.Service;
namespace Jackson0714.WcfServices.Hosting
{
    class Program
    {
        static void Main(string[] args)
        {
            ServiceHost getPersonDetailServiceHost = null;
            try
            {
                getPersonDetailServiceHost = new ServiceHost(typeof(GetPersonDetailService));
                getPersonDetailServiceHost.Open();
                Console.WriteLine("GetPersonDetailService Started！");
                Console.ReadKey();
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.StackTrace);
            }
            finally
            {
                getPersonDetailServiceHost.Close();
            }
        }
    }
}

using System;
using System.ServiceModel;
using Jackson0714.WcfServices.Service.Interface;
namespace Jackson0714.WcfServices.Client
{
    class Program
    {
        static void Main(string[] args)
        {
            using (ChannelFactory<IGetPersonDetailService> channelFactory = new ChannelFactory<IGetPersonDetailService>("GetPersonDetailService"))
            {
                IGetPersonDetailService proxy = channelFactory.CreateChannel();
                Console.WriteLine("Person Decription:{0}", proxy.GetPersonDetail("123").Description);
            }
            Console.Read();
        }
    }
}

using Jackson0714.WcfServices.Common;
using System.ServiceModel;
namespace Jackson0714.WcfServices.Service.Interface
{
    [ServiceContract(Name = "GetPersonDetailService", Namespace = "http://www.Jackson0714.com/")]
    public interface IGetPersonDetailService
    {
        [OperationContract]
        Person GetPersonDetail(string name);
    }
}

using Jackson0714.WcfServices.Common;
using Jackson0714.WcfServices.Service.Interface;

namespace Jackson0714.WcfServices.Service
{
    public class GetPersonDetailService : IGetPersonDetailService
    {
        public Person GetPersonDetail(string name)
        {
            Person person = DataAccess.MockQueryPersonDetail(name);
            return person;
        }
    }
}

using Jackson0714.WcfServices.Common;
using System.Text;

namespace Jackson0714.WcfServices.Service
{
    class DataAccess
    {
        public static Person MockQueryPersonDetail(string name)
        { 
            Person person = new Person();
            person.Name = "Jackson0714";
            string testString = "0123456789";
            StringBuilder builder = new StringBuilder();

            for(long i = 0;i<10000;i++)
            {
                builder.Append(testString);
            }
            person.Description = builder.ToString();
            return person;
        }
    }
}

namespace Jackson0714.WcfServices.Common
{
    public class Person
    {
        private string name;
        public string Name
        {
            get
            {
                return this.name;
            }
            set
            {
                name = value;
            }
        }
        private string description;
        public string Description
        {
            get
            {
                return this.description;
            }
            set
            {
                description = value;
            }
        }
    }
}

using Jackson0714.WcfServices.Common;
using System.ServiceModel;
namespace Jackson0714.WcfServices.Service.Interface
{
    [ServiceContract(Name = "GetPersonDetailService", Namespace = "http://www.Jackson0714.com/")]
    public interface IGetPersonDetailService
    {
        [OperationContract]
        string GetPersonDetailWithJson(string name);
    }
}

public string GetPersonDetailWithJson(string name)
{
     Person person = DataAccess.MockQueryPersonDetail(name);
     return JsonConvert.SerializeObject(person);
}

using (ChannelFactory channelFactory = new ChannelFactory("GetPersonDetailService"))
{
      IGetPersonDetailService proxy = channelFactory.CreateChannel();
      Person person = JsonConvert.DeserializeObject(proxy.GetPersonDetailWithJson("123"));

      Console.WriteLine("GetPersonDetailWithJson->Person Decription:{0}", person.Description);
 }

JsonConvert.SerializeObject(person);

Person person = JsonConvert.DeserializeObject<Person>(proxy.GetPersonDetailWithJson("123"));

(1) 压缩或Json格式化需要消耗一定的资源，如果CPU和内存不足时，慎用压缩或Json格式化。

(2) 压缩或Json格式化需要消耗一定的时间，如果数据量很大，那么压缩或Json格式化的时间也很大，对于需要快速响应的系统，慎用压缩或Json格式化。

作　　者： Jackson0714 
出　　处：http://www.cnblogs.com/jackson0714/ 
关于作者：专注于微软平台的项目开发。如有问题或建议，请多多赐教！ 
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