在Web服务中使用ConfigurationManager.GetSection("AppConfig"). [英] using ConfigurationManager.GetSection("AppConfig") in web services.
问题描述
大家好，
我对Web服务和配置文件有疑问.
平台:
.Net Framework，C#背后的代码.
场景:
我有一个Web服务，当我发布该服务时，会创建一个bin文件夹.一切正常.现在，在该bin文件夹中，我有一个dll，它实际上是我的数据访问层，用于数据库的CRUD等.现在，我在此dll中使用ConfigurationManager.GetSection("AppConfig")以获取该DLL带来的数据库连接字符串.从Web服务的web.config文件中.
文件结构:
<我的Web服务文件夹>
->< AppData>
->< bin>
-><我的数据访问层DLL>
->< web.config(包括数据访问层变量)>
在我的开发环境中，使用dll中的ConfigurationManager.GetSection("AppConfig")从我的web.config中取出appconfig部分，然后搜索节点以找到正确的密钥，这就像一个魅力. >
web.config的示例:
< AppConfig>
<配置use ="true">
< add key ="Databases" use ="true"/>
</Configs>
<！-Web服务配置设置->
<数据库>
< ConnectionStrings>
<添加密钥=<我的密钥名称>" providerName ="System.Data.SqlClient"
value =< MY CONNECTION STRING>" />
</ConnectionStrings>
</数据库>
</AppConfig>
到目前为止一切都很好.
现在，我正在虚拟PC上测试此系统的部署.我复制并粘贴c:\ initpub \< mywebservice>文件夹放入虚拟PC的c:\ inetpub.我尝试运行它，但失败了.
在将调试插入代码中以查看失败的地方之后，我发现ConfigurationManager.GetSection("AppConfig")实际上返回的是null，而不是从web.config返回的appconfig部分.有人知道为什么会这样吗?
请原谅帖子的长度，但需要说明情况.
James
Hi all,
I have a question regarding web services and configuration files.
Platform:
.Net Framework , code behind c#.
Scenario:
I have a web service which when i publish, creates a bin folder. All normal. Now, in that bin folder i have a dll which is effectively my data access layer, CRUD for databases etc. Now i use ConfigurationManager.GetSection("AppConfig") within this dll in order to get database connection strings, which the dll brings out from the web service web.config file.
File Structure:
<My Web Service Folder>
--><AppData>
--><bin>
--><My Data Access Layer DLL>
--><web.config(includes data access layer variables)>
Within my development environment, this works like a charm, using ConfigurationManager.GetSection("AppConfig") from my dll to get out the appconfig section from my web.config and then searching the nodes in order to find the right key.
Example of web.config:
<AppConfig>
<Configs use="true">
<add key="Databases" use="true" />
</Configs>
<!-- Web Service Configuration Settings-->
<Databases>
<ConnectionStrings>
<add key="<MY KEY NAME>" providerName="System.Data.SqlClient"
value="<MY CONNECTION STRING>" />
</ConnectionStrings>
</Databases>
</AppConfig>
So far so good.
Now i am testing a deployment of this system on a virtual pc. I copy and paste the c:\initpub\<mywebservice> folder into the c:\inetpub of the virtual pc. I try and run it and it fails.
After inserting debugging into the code to see where it is failing, I find that ConfigurationManager.GetSection("AppConfig") is actually returning null instead of the appconfig section from the web.config. Does anybody know why this is happening ?
Please excuse the length of the post but was needed to explain the situation.
James
推荐答案
除了访问该部分并尝试解析该部分的连接字符串外，您还可以尝试:
Instead of accessing the section and trying to parse the connection sting from that section, can you please try:
string connString = ConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString;
同时，您还可以检查在事件查看器"中看到的内容是否有错误. (就像没有找到访问权限或标记一样)
Meanwhile you can also check what you see in ''Event Viewer'' for if there was an error. (Like access permission or tag not found or anything else)
问题是我创建了一个自定义类来处理配置，并且需要按所述方式进行访问.如果您愿意，我可以向您发送代码文件，但是大约有5个文件
the thing is that i have created a custom class to handle the configuration and need to access it as stated. I could send you the code files if you want, but there are about 5 files
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