Question

我第一次使用XML和配置文件。我正在尝试读取此配置文件以连接到不同的连接字符串。

<?xml version="1.0"?>
<Config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <BDD id="aaa">
        <Connexion>
            <MetaDatas>
              <Data id="SOC">Model</Data>
            </MetaDatas>
            <Provider>
              <Name>System.Data.SqlClient</Name>
              <DataSource>10.198.164.169</DataSource>
              <Catalog>xxx</Catalog>
              <User>sa</User>
              <Password>xxx</Password>
            </Provider>
        </Connexion>
    </BDD>
    <BDD id="bbb">
        <Connexion>
            <MetaDatas>
              <Data id= "SE">eee</Data>
              <Data id="AD">fff</Data>
              <Data id="FR">ggg</Data>
              <Data id="DOC">hhh</Data>
            </MetaDatas>
            <Provider>
              <Name>System.Data.SqlClient</Name>
              <DataSource>10.198.164.169</DataSource>
              <Catalog>yyy</Catalog>
              <User>sa</User>
              <Password>xx</Password>
            </Provider>
        </Connexion>
    </BDD>  
</Config>

使用以下代码结构，

    [XmlRoot("Config")]
        public class XmlConfigBDD : XmlFileConfiguration.IXmlConfiguration
        {
            [XmlArray("Config")]
            [XmlArrayItem(typeof(DataBase), ElementName="BDD")]
            public List<DataBase> BDD { get; set; }

            public XmlFileConfiguration.IXmlConfiguration Default
            {
                get { return new XmlConfigBDD(); }
            }

            public XmlConfigBDD()
            {
                this.BDD = new List<DataBase>();
            }

            public string Path
            {
                get { return SE.Datas.Common.AppPaths.GetBddConfigurationFilePath(); }
            }
        }

        public class DataBase
        {
            [XmlAttribute("id")]
            public string Id { get; set; }

            [XmlElement("Connexion")]
            public ConfigConnection Connexion { get; set; }
            public DataBase()
            {
                this.Connexion = new ConfigConnection();
            }
        }



        public class ConfigConnection
        {
            [XmlArray("MetaDatas")]
            //public ConfigMetaDatas MetaDatas { get; set; }

            public List<ConfigMetaDatas> MetaDatas { get; set; }

            [XmlElement("Provider")]
            public ConfigProvider Provider { get; set; }

            protected static readonly string _Connection_ = @"metadata=res://*/%Metadata%.csdl|res://*/%Metadata%.ssdl|res://*/%Metadata%.msl;provider=%Provider%;provider connection string=""%ProviderConnectionString%""";

            public ConfigConnection()
            {
                this.MetaDatas = new List<ConfigMetaDatas>();
                this.Provider = new ConfigProvider();
            }

protected static readonly string _Metadata_TobeReplace_ = "%Metadata%";
        protected static readonly string _Provider_TobeReplace_ = "%Provider%";

        protected static readonly string _ProviderString_TobeReplace_ = "%ProviderConnectionString%";

        public string getModelConnection()
        {
            return this.getConnectionString(this.MetaDatas.Find(ctx => ctx.Id == "SOC").Value);
        }

           /*...*/
        }


        public class ConfigMetaDatas
        {
            [XmlAttribute("id")]
            public string Id { get; set; }

            [XmlText(Type = typeof(string))]
            public string Value { get; set; }

            public ConfigMetaDatas()
            {
            }
        }


        public class ConfigProvider
        {
            [XmlElement("Name")]
            public string Name { get; set; }

            [XmlElement("DataSource")]
            public string DataSource { get; set; }

            [XmlElement("Catalog")]
            public string Catalog { get; set; }

            [XmlElement("User", IsNullable = true)]
            public string User { get; set; }

            [XmlElement("Password", IsNullable = true)]
            public string Password { get; set; }



            public ConfigProvider()
            {

            }

            /*...*/
        }

它没有用，我尝试了不同的组合。返回的连接字符串为null。

Answer 1

替换：

    [XmlArray("Config")]
    [XmlArrayItem(typeof(DataBase), ElementName="BDD")]
    public List<DataBase> BDD { get; set; }

使用：

    [XmlElement]
    public List<DataBase> BDD { get; set; }

（原始版本表明根<Config>内应该有一个额外的<Config>

而因为元数据具有父/子xml结构，它应该是：

    [XmlArray("MetaDatas")]
    [XmlArrayItem("Data")]
    public List<ConfigMetaDatas> MetaDatas { get; set; }

用于读取XML的C＃结构代码

1 个答案: