之前公司开发的Sharepoint 网站使用的是Classic Mode Authentication方式(基于Windows AD方式)，近期的客户需求需要使这个已投入使用的Sharepoint应用不但能支持原有的AD认证方式，并且还要能支持Form方式。
于是问题出来了，一般我们在新创建一个Web Application时，系统会让你决定此Web Application到底是基于哪一种Authentication，如下图:
而一旦你部署了此Web Application，一朝你想要修改它，你在Sharepoint的 Central Administration 界面上就再也找不到重新设定此Web Application认证方式的途径了。
此处，作为一个整体总结，描述具体的操作步骤(有些步骤，尤其是准备步骤，你可以在网上找到不少的参考，在此处只是作为一个整体把它们备注下来)。
1. 创建Form认证需要使用的用户数据库，这里使用AspnetDb。
1.1 在服务器上启动cmd (最好以Administrator方式启动) 并转到目录 C:\Windows\Microsoft.NET\Framework\v2.0.50727下，也可以通过下图操作在此目录下进入cmd命令行模式
1.2 执行 aspnet_regsql.exe命令创建AspnetDb数据库，各步骤见下图:
命令运行后出现如下界面
按默认设置一路Next
完成创建后，可以到服务器上找到创建的AspnetDb数据库。
2. 在AspnetDb数据库上创建用户。
你可以自行在AspnetDb上创建用户，也可以通过工具快速生成用户。
2.1下载 FBA User Management Tool
http://fbamanagementtool.codeplex.com/
http://cks.codeplex.com/releases/view/7450
2.2 解压缩MembershipSeeder.zip并启动release目录下的 MembershipSeeder.exe，分别设置Config，Users和密码，然后点击Create进行创建,如下图:
这个工具将在AspnetDb中创建 user1 … user50等50个用户，密码为!Passw0rd。
可以进入数据库中查看:
3.配置Sharepoint环境下的相关 Web.config
主要是两个Web.Config.(建议在配置任何web.config文件之前先备份原文件，以备操作失误使得SharePoint崩溃时用于恢复)
一是:C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\WebServices\SecurityToken\web.config
< connectionManagement >
< add address ="*" maxconnection ="10000" />
</ connectionManagement >
</ system.net >
< connectionStrings >
< add name ="FBASQLConnectionString"
connectionString ="Data Source=MySQL;Initial Catalog=aspnetdb;
Persist Security Info=True;User ID=MyApp;Password=MyPwd"
providerName ="System.Data.SqlClient" />
</ connectionStrings >
< system .web >
< roleManager enabled ="true" cacheRolesInCookie ="false" >
< providers >
< add name ="SqlRoleProvider"
type ="Microsoft.SharePoint.Administration.Claims.SPClaimsAuthRoleProvider,
Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" />
< add connectionStringName ="FBASQLConnectionString"
applicationName ="/"
description ="Stores and retrieves roles from SQL Server"
name ="FBArole"
type ="System.Web.Security.SqlRoleProvider, System.Web,
Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</ providers >
</ roleManager >
< membership >
< providers >
< add name ="SqlMembershipProvider"
type ="Microsoft.SharePoint.Administration.Claims.SPClaimsAuthMembershipProvider,
Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" />
< add connectionStringName ="FBASQLConnectionString"
passwordAttemptWindow ="5"
enablePasswordRetrieval ="false"
enablePasswordReset ="false"
requiresQuestionAndAnswer ="true"
applicationName ="/"
requiresUniqueEmail ="true"
passwordFormat ="Hashed"
description ="Stores and Retrieves membership data from SQL Server"
name ="FBArole"
type ="System.Web.Security.SqlMembershipProvider, System.Web,
Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</ providers >
</ membership >
< authentication mode ="Windows" />
</ system.web >
二是:修改配置管理中心的web.config
可以通过下图所示跳到管理中心的Web.config所在目录:
A.在<configuration>节点下添加
< connectionManagement >
< add address ="*" maxconnection ="10000" />
</ connectionManagement >
</ system.net >
< connectionStrings >
< add name ="FBASQLConnectionString"
connectionString ="Data Source=YourServer;Initial Catalog=aspnetdb;
Persist Security Info=True;User ID=MyApp;Password=MyPwd"
providerName ="System.Data.SqlClient" />
</ connectionStrings >
B.更新roleManager和 membership 节点：
< providers >
< add name ="SqlRoleProvider"
type ="Microsoft.SharePoint.Administration.Claims.SPClaimsAuthRoleProvider,
Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" />
< add connectionStringName ="FBASQLConnectionString"
applicationName ="/"
description ="Stores and retrieves roles from SQL Server"
name ="FBArole"
type ="System.Web.Security.SqlRoleProvider, System.Web,
Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</ providers >
</ roleManager >
< membership >
< providers >
< add name ="SqlMembershipProvider"
type ="Microsoft.SharePoint.Administration.Claims.SPClaimsAuthMembershipProvider,
Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" />
< add connectionStringName ="FBASQLConnectionString"
passwordAttemptWindow ="5"
enablePasswordRetrieval ="false"
enablePasswordReset ="false"
requiresQuestionAndAnswer ="true"
applicationName ="/"
requiresUniqueEmail ="true"
passwordFormat ="Hashed"
description ="Stores and Retrieves membership data from SQL Server"
name ="FBArole"
type ="System.Web.Security.SqlMembershipProvider, System.Web,
Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</ providers >
</ membership >
