1//------------------------------------------------------------------------------
  2// <copyright company="Tunynet">
  3//     Copyright (c) Tunynet Inc.  All rights reserved.
  4// </copyright> 
  5//------------------------------------------------------------------------------
  6
  7
  8
  9using System;
 10using System.Collections.Generic;
 11using System.Text;
 12using System.Web.Services;
 13using SpaceBuilder.Components;
 14using System.Xml;
 15
 16namespace SpaceBuilder.Web.Services
 17...{
 18    /**//// <summary>
 19    ///区域WebService，用于获取相关区域数据
 20    /// </summary>
 21    [WebService(Name = "AreaService", Description = "获取区域数据，用于区域联动下拉框", Namespace = "http://www.spacebuilder.cn")]
 22    public class AreaService : WebService
 23    ...{
 24        /**//// <summary>
 25        /// 构造函数
 26        /// </summary>
 27        public AreaService()
 28        ...{ }
 29
 30        /**//// <summary>
 31        /// 获取所有顶级区域
 32        /// </summary>
 33        /// <returns>xml格式的字符串</returns>
 34        [WebMethod]
 35        public string GetRootAreas()
 36        ...{
 37            List<AreaStatistics> rootAreas = Areas.GetRootAreas();
 38            return ToXml(rootAreas);
 39            //return ToJson(rootAreas);
 40        }
 41
 42        /**//// <summary>
 43        /// 获取下一级子区域
 44        /// </summary>
 45        /// <returns>xml格式的字符串</returns>
 46        [WebMethod]
 47        public string GetChildAreas(int parentAreaID)
 48        ...{
 49            List<AreaStatistics> childAreas = Areas.GetChildAreas(parentAreaID);
 50            return ToXml(childAreas);
 51            //return ToJson(childAreas);
 52        }
 53
 54        /**//// <summary>
 55        /// 把区域数据转换成xml格式
 56        /// </summary>
 57        /// <param name="areas">区域数据集合</param>
 58        /// <returns>xml格式的字符串</returns>
 59        /// <example>
 60        ///&lt;?xml version="1.0" encoding="utf-8"?&gt;
 61        ///&lt;areas&gt;
 62        ///  &lt;area&gt;
 63        ///    &lt;id&gt;2&lt;/id&gt;
 64        ///    &lt;name&gt;北京市&lt;/name&gt;
 65        ///  &lt;/area&gt;
 66        ///  &lt;area&gt;
 67        ///    &lt;id&gt;4&lt;/id&gt;
 68        ///    &lt;name&gt;上海市&lt;/name&gt;
 69        ///  &lt;/area&gt;
 70        ///  &lt;area&gt;
 71        ///    &lt;id&gt;6&lt;/id&gt;
 72        ///    &lt;name&gt;天津市&lt;/name&gt;
 73        ///  &lt;/area&gt;
 74        ///&lt;/areas&gt;
 75        /// </example>
 76        private string ToXml(List<AreaStatistics> areas)
 77        ...{
 78            if (areas == null)
 79                return string.Empty;
 80
 81            StringBuilder areasXml = new StringBuilder();
 82            XmlWriterSettings settings = new XmlWriterSettings();
 83            //settings.Encoding = Encoding.UTF8;
 84            settings.OmitXmlDeclaration = false;
 85            settings.Indent = false;
 86
 87            using (XmlWriter writer = XmlWriter.Create(areasXml, settings))
 88            ...{
 89                writer.WriteRaw("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
 90                writer.WriteStartElement("areas");
 91                foreach (AreaStatistics areaStatistics in areas)
 92                ...{
 93                    writer.WriteStartElement("area");
 94                    writer.WriteElementString("id", areaStatistics.AreaID.ToString());
 95                    writer.WriteElementString("name", areaStatistics.Name);
 96                    writer.WriteEndElement();
 97                }
 98                writer.WriteEndElement();
 99                writer.Flush();
100                writer.Close();
101            }
102
103            string sss = areasXml.ToString();
104            return areasXml.ToString();
105        }
106
107
108        private string ToJson(List<AreaStatistics> areas)
109        ...{
110            if (areas == null)
111                return string.Empty;
112
113            StringBuilder areasJson = new StringBuilder();
114
115            areasJson.Append("[");
116            foreach (AreaStatistics areaStatistics in areas)
117            ...{
118                areasJson.Append("{");
119                areasJson.Append("name:");
120                areasJson.Append("\""+areaStatistics.Name+"\",");
121                areasJson.Append("id:");
122                areasJson.Append("\""+areaStatistics.AreaID+"\"");
123                areasJson.Append("},");
124            }
125            areasJson.Append("]");
126
127
128            return areasJson.ToString();
129        }
130
131    }
132}
133