!257 删除不必要检测代码

Merge pull request !257 from AppleOfGray/dev

sa-token-doc/more/common-questions.md

@@ -438,6 +438,25 @@ spring.mvc.throw-exception-if-no-handler-found=true
 
 
 
+### Q：开启了懒加载后，启动报“未能获取有效的上下文处理器”
+开启了`lazy-initialization=true`后，启动报异常 `InvalidContextException`: 未能获取有效的上下文处理器, 配置如下:
+``` yaml
+spring:
+  main:
+    lazy-initialization: true
+```
+原因是sa-token自动配置入口类SaTokenContextRegister被延迟加载了，只需要手动指定懒加载排除掉SaTokenContextRegister就可以了,实现代码如下:
+```java
+@Configuration
+class MyConfiguration {
+    @Bean
+    LazyInitializationExcludeFilter integrationLazyInitExcludeFilter() {
+        return LazyInitializationExcludeFilter.forBeanTypes(SaTokenContextRegister.class);
+    }
+}
+```
+[经验来源](https://gitee.com/dromara/sa-token/issues/I7EXIU)
+
 
 <!-- ---------------------------- 常见疑问 ----------------------------- -->
 

sa-token-plugin/sa-token-alone-redis/src/main/java/cn/dev33/satoken/dao/alone/SaAloneRedisInject.java

@@ -74,10 +74,6 @@ public class SaAloneRedisInject implements EnvironmentAware{
 			if(saTokenDao == null || saTokenDao instanceof SaTokenDaoDefaultImpl) {
 				return;
 			}
-			// 如果配置文件不包含相关配置，则不进行任何操作 
-			if(environment.getProperty(ALONE_PREFIX + ".host") == null) {
-				return;
-			}
 			
 			// ------------------- 开始注入