应该为外部类指定类型参数答案

【问题标题】：Type arguments should be specified for an outer class应该为外部类指定类型参数
【发布时间】：2021-09-11 10:02:01
【问题描述】：

我正在通过创建一个应用程序在我的应用程序中实现 oauth2 安全性配置类，但我不知道我在哪里犯了错误，我得到了关注编译时错误的类型

Type arguments should be specified for an outer class 'ExpressionUrlAuthorizationConfigurer'. Use full class name to specify them

SecurityConfig.kt

package com.main.serviceproduct.config

import org.springframework.context.annotation.Configuration
import org.springframework.security.config.Customizer
import org.springframework.security.config.annotation.web.builders.HttpSecurity
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter
import org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer.ExpressionInterceptUrlRegistry
import org.springframework.security.config.annotation.web.configurers.oauth2.server.resource.OAuth2ResourceServerConfigurer

@Configuration
@EnableWebSecurity
class SecurityConfig : WebSecurityConfigurerAdapter() {
    @Throws(Exception::class)
    override fun configure(security: HttpSecurity){
        security.authorizeRequests(Customizer { authorize: ExpressionInterceptUrlRegistry ->
            authorize.anyRequest().authenticated()
        })
            .oauth2ResourceServer{obj: OAuth2ResourceServerConfigurer<HttpSecurity?>->obj.jwt()}
    }

}

security.authorizeRequests(Customizer { authorize: ExpressionInterceptUrlRegistry ->
            authorize.anyRequest().authenticated()

此时我在上面的行上收到错误授权： ExpressionInterceptUrlRegistry

【问题讨论】：

标签： spring-boot kotlin spring-security spring-security-oauth2

【解决方案1】：

因为ExpressionInterceptUrlRegistry是一个内部（非静态）类，所以它需要外部类ExpressionUrlAuthorizationConfigurer<T>的类型信息，实际上是一个HttpSecurity。

以下应该有效：

@Configuration
@EnableWebSecurity
open class SecurityConfig : WebSecurityConfigurerAdapter() {
    @Throws(Exception::class)
    override fun configure(security: HttpSecurity){
        security.authorizeRequests(Customizer { authorize: ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry ->
            authorize.anyRequest().authenticated()
        })
            .oauth2ResourceServer{obj: OAuth2ResourceServerConfigurer<HttpSecurity?> ->obj.jwt()}
    }

}

【讨论】：