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Add: SpringUtil.getBean(TypeReference<T>)

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添加Spring工具类静态方法，通过类型参考（TypeReference）获取带泛型参数的Bean，同时添加了一个小的单元测试
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dejavuhuh
2020-08-09 20:47:42 +08:00
parent 4669562f72
commit 741c0cfe1a
2 changed files with 45 additions and 0 deletions
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22
hutool-extra/src/main/java/cn/hutool/extra/spring/SpringUtil.java
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@@ -1,10 +1,16 @@
package cn.hutool.extra.spring;
import cn.hutool.core.lang.ParameterizedTypeImpl;
import cn.hutool.core.lang.TypeReference;
import cn.hutool.core.util.ArrayUtil;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.ResolvableType;
import org.springframework.stereotype.Component;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.Map;
/**
@@ -73,6 +79,22 @@ public class SpringUtil implements ApplicationContextAware {
return applicationContext.getBean(name, clazz);
}
/**
* 通过类型参考返回带泛型参数的Bean
*
* @param reference 类型参考，用于持有转换后的泛型类型
* @param <T> Bean类型
* @return 带泛型参数的Bean
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(TypeReference<T> reference) {
ParameterizedType parameterizedType = (ParameterizedType) reference.getType();
Class<T> rawType = (Class<T>) parameterizedType.getRawType();
Class<?>[] genericTypes = Arrays.stream(parameterizedType.getActualTypeArguments()).map(type -> (Class<?>) type).toArray(Class[]::new);
String[] beanNames = applicationContext.getBeanNamesForType(ResolvableType.forClassWithGenerics(rawType, genericTypes));
return applicationContext.getBean(beanNames[0], rawType);
}
/**
* 获取指定类型对应的所有Bean，包括子类
*