ai.yue.library.base.util

Class ApplicationContextUtils

java.lang.Object

ai.yue.library.base.util.ApplicationContextUtils

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

@Component
public class ApplicationContextUtils
extends Object
implements org.springframework.context.ApplicationContextAware

应用上下文工具类，用于在普通类中获取Spring IOC容器中的bean对象

Since:

2019年8月9日

Author:

ylyue

Constructor Summary

Constructors

Constructor and Description
ApplicationContextUtils()

Method Summary

Modifier and Type	Method and Description
static org.springframework.context.ApplicationContext	getApplicationContext() 获得 applicationContext
static <T> T	getBean(Class<T> clazz) 获取Spring容器中的Bean - 通过Bean类型
static Object	getBean(String name) 获取Spring容器中的Bean - 通过Bean名称
static <T> T	getBean(String name, Class<T> clazz) 获取Spring容器中的Bean - 通过Bean名称与Bean类型精准获取
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ApplicationContextUtils

public ApplicationContextUtils()

Method Detail

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

getApplicationContext

public static org.springframework.context.ApplicationContext getApplicationContext()

获得 applicationContext

Returns:

applicationContext

getBean

public static Object getBean(String name)

获取Spring容器中的Bean - 通过Bean名称

Parameters:

name - Bean名称

Returns:

Object，需要做强制类型转换

getBean

public static <T> T getBean(Class<T> clazz)

获取Spring容器中的Bean - 通过Bean类型

Type Parameters:

T - Bean类型

Parameters:

clazz - 泛型类型，可以是接口或超类

Returns:

返回指定类型的单个bean实例

getBean

public static <T> T getBean(String name,
                            Class<T> clazz)

获取Spring容器中的Bean - 通过Bean名称与Bean类型精准获取

Type Parameters:

T - Bean类型

Parameters:

name - Bean名称

clazz - 泛型类型，可以是接口或超类

Returns:

Bean的实例