zoukankan html css js c++ java

构建配置文件实体映射

首先在配置文件web.config或者app.config中定义配置段：

<configSections>
　　<section name="Country" type="Demo.CountrySection, Demo"/>
</configSections>

在configuration配置节中配置Country：

<configuration>
    <Country CountryID="0001">
		<Province ProID="100001">
			<City Cid="01">
				<Contry Id="001" ShortName="BJ"/>
			</City>
		</Province>
		<Province ProID="100002">	
    		        <City Cid="02">
				<Contry Id="02" ShortName="SH"/>
				<Contry Id="03" ShortName="GD"/>
			</City>
		</Province>
	</Country>
</configuration>

定义CountrySection类：

  1     public class CountrySection : ConfigurationSection
  2     {
  3         [ConfigurationProperty("CountryID", IsRequired = true)]
  4         public string CompanyID
  5         {
  6             get
  7             {
  8                 return (string)base["CountryID"];
  9             }
 10             set
 11             {
 12                 base["CountryID"] = value;
 13             }
 14         }
 15 
 16         [ConfigurationProperty("", IsDefaultCollection = true)]
 17         public ProvinceElementCollection Province
 18         {
 19             get
 20             {
 21                 return (ProvinceElementCollection)base[""];
 22             }
 23         }
 24     }
 25     public class ProvinceElementCollection : ConfigurationElementCollection
 26     {
 27         protected override ConfigurationElement CreateNewElement()
 28         {
 29             return new ProvinceElement();
 30         }
 31 
 32         protected override object GetElementKey(ConfigurationElement element)
 33         {
 34             return ((ProvinceElement)element).ProID;
 35         }
 36 
 37         public override ConfigurationElementCollectionType CollectionType
 38         {
 39             get
 40             {
 41                 return ConfigurationElementCollectionType.BasicMap;
 42             }
 43         }
 44 
 45         protected override string ElementName
 46         {
 47             get
 48             {
 49                 return "Province";
 50             }
 51         }
 52 
 53         public ProvinceElement this[int index]
 54         {
 55             get
 56             {
 57                 return (ProvinceElement)BaseGet(index);
 58             }
 59             set
 60             {
 61                 if (BaseGet(index) != null)
 62                 {
 63                     BaseRemoveAt(index);
 64                 }
 65                 BaseAdd(index, value);
 66             }
 67         }
 68     }
 69     public class ProvinceElement : ConfigurationElement
 70     {
 71         [ConfigurationProperty("ProID", IsRequired = true)]
 72         public string ProID
 73         {
 74             get
 75             {
 76                 return (string)base["ProID"];
 77             }
 78             set
 79             {
 80                 base["ProID"] = value;
 81             }
 82         }
 83 
 84         [ConfigurationProperty("City", IsDefaultCollection = true)]
 85         public CityElementCollection City
 86         {
 87             get
 88             {
 89                 return (CityElementCollection)base["City"];
 90             }
 91         }
 92     }
 93     public class CityElementCollection : ConfigurationElementCollection
 94     {
 95         [ConfigurationProperty("Cid", IsRequired = true)]
 96         public string CID
 97         {
 98             get
 99             {
100                 return (string)base["Cid"];
101             }
102             set
103             {
104                 base["Cid"] = value;
105             }
106         }
107         protected override ConfigurationElement CreateNewElement()
108         {
109             return new ContryElement();
110         }
111 
112         protected override object GetElementKey(ConfigurationElement element)
113         {
114             return ((ContryElement)element).Id;
115         }
116 
117         public override ConfigurationElementCollectionType CollectionType
118         {
119             get
120             {
121                 return ConfigurationElementCollectionType.BasicMap;
122             }
123         }
124 
125         protected override string ElementName
126         {
127             get
128             {
129                 return "Contry";
130             }
131         }
132 
133         public ContryElement this[int index]
134         {
135             get
136             {
137                 return (ContryElement)BaseGet(index);
138             }
139             set
140             {
141                 if (BaseGet(index) != null)
142                 {
143                     BaseRemoveAt(index);
144                 }
145                 BaseAdd(index, value);
146             }
147         }
148     }
149     public class ContryElement : ConfigurationElement
150     {
151         [ConfigurationProperty("Id", IsRequired = true)]
152         public string Id
153         {
154             get
155             {
156                 return (string)base["Id"];
157             }
158             set
159             {
160                 base["Id"] = value;
161             }
162         }
163 
164         [ConfigurationProperty("ShortName", IsRequired = true)]
165         public string ShortName
166         {
167             get
168             {
169                 return (string)base["ShortName"];
170             }
171             set
172             {
173                 base["ShortName"] = value;
174             }
175         }
176     }

CountrySection

如果要配置组，需要定义如下：

<configSections>
		<sectionGroup name="Countries">
			<section name="China" type="Demo.ChinaSection, Demo" allowDefinition="Everywhere" allowLocation="true"/>
		</sectionGroup>
</configSections>

在configuration配置节中配置China：

    <configuration>
        <Countries>
		<China Number="1">
			<Province ShortName="JS"></Province>
		</China>
	</Countries>
    </configuration>

定义类如下：

 1         public class ChinaSection : ConfigurationSection
 2     {
 3         [ConfigurationProperty("Number", DefaultValue = "", IsRequired = true)]
 4         public string Number
 5         {
 6             get { return (string)this["Number"]; }
 7             set { this["Number"] = value; }
 8         }
 9 
10         [ConfigurationProperty("Province")]
11         public Province Province
12         {
13             get { return (Province)this["Province"]; }
14             set { this["Province"] = value; }
15         }
16     }
17     public class Province : ConfigurationElement
18     {
19         [ConfigurationProperty("ShortName", DefaultValue = "", IsRequired = true)]
20         public string ShortName
21         {
22             get { return (string)this["ShortName"]; }
23         }
24     }

View Code

调用：

CountrySection section1 = ConfigurationManager.GetSection("Country") as CountrySection;	
ChinaSection sec = (ChinaSection)ConfigurationManager.GetSection("Countries/China");

本文只是简要的介绍了如何去做相应的映射，更具体的内容需要依据项目实际需要而定。

查看全文

相关阅读:
排序算法说明
 easyExcel 读写excel表格
 POI 读写excel表格
 JVM虚拟机详解
 SSM相关的配置文件模板
 SSM 统一异常处理
 ssm框架实现发送邮件
 springboot发送邮件
 SpringBoot Ajax请求Json数据
 协程（Coroutine）（二）

原文地址：https://www.cnblogs.com/ziranquliu/p/4766020.html