AuthenticationManager无法注入，是要自己实现么

[pengliangs]

@Autowired
private AuthenticationManager authenticationManager;

[pengyand]

Spring 2.x 好像不能注入了，
解决方案：

在WebSecurityConfigurerAdapter的实现类当中，重写authenticationManagerBean方法：

@bean(name = BeanIds.AUTHENTICATION_MANAGER)
@OverRide
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
但是会导致安全配置都失效~~~
提示：{"timestamp":1546938283602,"status":401,"error":"Unauthorized","message":"Unauthorized","path":"/oauth/token"}%

[pengyand]

问题解决了：
@configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

/**
 * Spring 2.0 不会自动注入这个实例了
 * @return
 * @throws Exception
 */
@Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
    return super.authenticationManagerBean();
}

}

[momokanni]

也可以构造器注入

public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter{
       /**
	 * 构造函数注入
	 */
	private AuthenticationManager authenticationManager;
       /**
	 * 注入AuthenticationManager
	 * @param authenticationConfiguration
	 * @throws Exception
	 */
	public AuthorizationServerConfig(AuthenticationConfiguration authenticationConfiguration) throws Exception {

		this.authenticationManager = authenticationConfiguration.getAuthenticationManager();
	}