ASP. NET connects LDAP data and extracts relevant data from LDAP (1)

Asp. NET connection to the LDAP database

The function of obtaining user information encapsulated in the DAL layer

<summary>

Find user information by user ID

</summary>

<param name= "UserId" ></param>

<returns></returns>

Publicdirectoryentry GetUser (string username)

{

String path = system.configuration.configurationmanager.connectionstrings["path"]. ConnectionString;

string pname = system.configuration.configurationmanager.connectionstrings["PName"]. ConnectionString;

string pwd = system.configuration.configurationmanager.connectionstrings["pwd"]. ConnectionString;

3 Connection database information is written in the configuration file

DirectoryEntry Deuser; Defining variables

Try

{

DirectoryEntry de = newdirectoryentry (path, pname, PWD, authenticationtypes.secure);

DirectorySearcher desearch = Newdirectorysearcher (DE); Connecting to the LDAP database

Desearch.filter = "(& (Objectclass=userinfo) (loginname=" + username + "))"; Filter the comparison

The above sentence is modified to: Mysearcher.filter = "(& (Objectclass=userinfo) (& (loginname=" + Txtuserid.text + ") (loginpassword=" + Txtuserpwd.text + ")))";//As login is User account and password authentication

Desearch.searchscope = Searchscope.subtree;

SearchResult result = Desearch.findone (); A result of the filter comparison, stored in result

if (result! = NULL)

{

Deuser = result. Getdirectoryentry (); Get the filtered results and assign them to the Deuser

return deuser;

}

Else

{

Returnnull;

}

}

catch (Exception ex)

{

Logmanage.saveinfo (ex. ToString ());

Returnnull;

}

Ii. configuration file Information

<connectionStrings>

<add name= "Path"

connectionstring= "Ldap://192.168.1.1/ou=123,dc=123,dc=com"/>

<add name= "PName"

connectionstring= "123"/>

<add name= "pwd"

connectionstring= "123"/>

</connectionStrings>

Third, the realization layer

1. Page Information

User id: (textbox box)

User name: (textbox box)
User password: (textbox box)
E-mail: (textbox box)
Buttonid= "Butquchu" (Read Data button)

2. Event function code

Protectedvoid Butquchu_click (object sender, EventArgs e)

{

Ldapdao ld= Newldapdao ();

String username = session["LOGINNAME"]. ToString (); Get the user account based on the login information on the previous page, stored in the session.

Labname. Text = Username;

DirectoryEntry de = ld. GetUser (username); Call the Get user information function in Ldapdao

if (de! = null)

{

if (de! = null)

{

if (DE. properties["USERID"]. Value = null)

{

Txtuserid. Text = de. properties["USERID"]. Value.tostring ();

}

if (DE. properties["LOGINNAME"]. Value = null)

{

txtUserName. Text = de. properties["LOGINNAME"]. Value.tostring ();

}

if (DE. properties["Loginpassword"]. Value = null)

{

Txtpwd. Text = de. properties["Loginpassword"]. Value.tostring ();

}

if (DE. properties["EMAIL"]. Value = null)

{

Txtmail. Text = de. properties["EMAIL"]. Value.tostring ();

}

}