Spring Security：autowire ProviderManager [英] Spring Security: autowire ProviderManager

问题描述

我试图使用Spring Security以编程方式验证用户登录/传递，因此我需要访问 ProviderManager 。我希望它被自动注入到 @Controller 中。

我的代码如下所示：

  import org.springframework.security.authentication.ProviderManager; 
 
 // ... 
 
 @Controller 
 public class MyController {
 $ b $ @Autowired 
私有ProviderManager authenticationManager; 
  

但是，当我尝试运行应用程序时，出现以下错误消息：

 没有定义[org.springframework.security.authentication.ProviderManager]类型的唯一bean：
期望单个匹配的bean，但找到2：
 [org.springframework.security.authentication.ProviderManager＃0，org.springframework.security.authenticationManager] 
  

<

我在Spring 3.0.1中使用Spring Security 3.0.0-RC1，而且我还没有解决这个问题。定义了任何 ProviderManager bean。我成功地使用过：

  @Resource 
 private ProviderManager authenticationManager; 
  

在其他项目中，但 javax.annotation.Resource AuthenticationManager 不支持GAE。

s在上下文中：

• org.springframework.security.authenticationManager 填充< authentication-manager>


• org.springframework.security.authentication.ProviderManager中显式声明的身份验证提供程序＃0 填充隐式声明的提供程序（记住我，匿名等），并将身份验证请求委托给 org.springframework.security.authenticationManager 作为后备。

所以，我想你需要

  @Autowired @Qualifier（org.springframework.security.authenticationManager）
  

I am trying to programatically validate a user login/pass using Spring Security, so I need to have access to the ProviderManager. I would like it to be automatically injected into my @Controller.

My code looks like:

import org.springframework.security.authentication.ProviderManager;

// ...

@Controller
public class MyController {

    @Autowired
    private ProviderManager authenticationManager;

But when I try to run the application I get this error message:

No unique bean of type [org.springframework.security.authentication.ProviderManager] is defined: 
expected single matching bean but found 2: 
[org.springframework.security.authentication.ProviderManager#0, org.springframework.security.authenticationManager]

What could be the cause or how could I solve it?

I am using Spring Security 3.0.0-RC1 with Spring 3.0.1, and I've not defined any ProviderManager bean. I've successfully used:

@Resource
private ProviderManager authenticationManager;

in other projects, but javax.annotation.Resource is not supported in GAE.

解决方案

There are two AuthenticationManagers in the context:

• org.springframework.security.authenticationManager is populated with authentication providers explicitly declared in <authentication-manager>
• org.springframework.security.authentication.ProviderManager#0 is populated with implicitly declared providers (remember me, anonymous and so on) and delegates the authentication request to org.springframework.security.authenticationManager as a fallback.

So, I guess you need

@Autowired @Qualifier("org.springframework.security.authenticationManager")

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