com.alibaba.spring.util

类 BeanUtils

java.lang.Object

com.alibaba.spring.util.BeanUtils

public abstract class BeanUtils
extends Object

Bean Utilities Class

从以下版本开始:

2017.01.13

作者:

Mercy

构造器概要

构造器

构造器和说明
BeanUtils()

方法概要

限定符和类型	方法和说明
static <T> T	getBeanIfAvailable(org.springframework.beans.factory.BeanFactory beanFactory, String beanName, Class<T> beanType) Get the bean via the specified bean name and type if available
static String[]	getBeanNames(org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory, Class<?> beanClass) Get Bean Names from ListableBeanFactory by type.
static String[]	getBeanNames(org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory, Class<?> beanClass, boolean includingAncestors) Get Bean Names from ListableBeanFactory by type.
static String[]	getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?> beanClass) Get Bean Names from ListableBeanFactory by type.
static String[]	getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?> beanClass, boolean includingAncestors) Get Bean Names from ListableBeanFactory by type.
static <T> T	getOptionalBean(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<T> beanClass) Get Optional Bean by Class.
static <T> T	getOptionalBean(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<T> beanClass, boolean includingAncestors) Get Optional Bean by Class including ancestors(BeanFactory).
static <T> List<T>	getSortedBeans(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<T> type) Get all sorted Beans of ListableBeanFactory in specified bean type.
static boolean	isBeanPresent(org.springframework.beans.factory.BeanFactory beanFactory, String beanName, Class<?> beanClass) Is Bean Present or not by the specified name and class
static boolean	isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?> beanClass) Is Bean Present or not?
static boolean	isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory, Class<?> beanClass, boolean includingAncestors) Is Bean Present or not?
static boolean	isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory, String beanClassName) Is Bean Present or not?
static boolean	isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory, String beanClassName, boolean includingAncestors) Is Bean Present or not?
static Class<?>	resolveBeanType(String beanClassName, ClassLoader classLoader) Resolve Bean Type
static <T> Map<String,T>	sort(Map<String,T> beansMap) Sort Beans Map via AnnotationAwareOrderComparator.sort(List) rule

从类继承的方法 java.lang.Object

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

构造器详细资料

BeanUtils

public BeanUtils()

方法详细资料

isBeanPresent

public static boolean isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<?> beanClass)

Is Bean Present or not?

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

返回:

If present , return true , or false

isBeanPresent

public static boolean isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<?> beanClass,
                                    boolean includingAncestors)

Is Bean Present or not?

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

includingAncestors - including ancestors or not

返回:

If present , return true , or false

isBeanPresent

public static boolean isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    String beanClassName,
                                    boolean includingAncestors)

Is Bean Present or not?

参数:

beanFactory - ListableBeanFactory

beanClassName - The name of Class of Bean

includingAncestors - including ancestors or not

返回:

If present , return true , or false

isBeanPresent

public static boolean isBeanPresent(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    String beanClassName)

Is Bean Present or not?

参数:

beanFactory - ListableBeanFactory

beanClassName - The name of Class of Bean

返回:

If present , return true , or false

isBeanPresent

public static boolean isBeanPresent(org.springframework.beans.factory.BeanFactory beanFactory,
                                    String beanName,
                                    Class<?> beanClass)
                             throws NullPointerException

Is Bean Present or not by the specified name and class

参数:

beanFactory - BeanFactory

beanName - The bean name

beanClass - The bean class

返回:

If present , return true , or false

抛出:

NullPointerException

从以下版本开始:

1.0.6

getBeanNames

public static String[] getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<?> beanClass)

Get Bean Names from ListableBeanFactory by type.

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

返回:

If found , return the array of Bean Names , or empty array.

getBeanNames

public static String[] getBeanNames(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<?> beanClass,
                                    boolean includingAncestors)

Get Bean Names from ListableBeanFactory by type.

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

includingAncestors - including ancestors or not

返回:

If found , return the array of Bean Names , or empty array.

getBeanNames

public static String[] getBeanNames(org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory,
                                    Class<?> beanClass)

Get Bean Names from ListableBeanFactory by type.

参数:

beanFactory - ConfigurableListableBeanFactory

beanClass - The Class of Bean

返回:

If found , return the array of Bean Names , or empty array.

getBeanNames

public static String[] getBeanNames(org.springframework.beans.factory.config.ConfigurableListableBeanFactory beanFactory,
                                    Class<?> beanClass,
                                    boolean includingAncestors)

Get Bean Names from ListableBeanFactory by type.

参数:

beanFactory - ConfigurableListableBeanFactory

beanClass - The Class of Bean

includingAncestors - including ancestors or not

返回:

If found , return the array of Bean Names , or empty array.

resolveBeanType

public static Class<?> resolveBeanType(String beanClassName,
                                       ClassLoader classLoader)

Resolve Bean Type

参数:

beanClassName - the class name of Bean

classLoader - ClassLoader

返回:

Bean type if can be resolved , or return null.

getOptionalBean

public static <T> T getOptionalBean(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<T> beanClass,
                                    boolean includingAncestors)
                             throws org.springframework.beans.BeansException

Get Optional Bean by Class including ancestors(BeanFactory).

类型参数:

T - The Class of Bean

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

includingAncestors - including ancestors or not

返回:

Bean object if found , or return null.

抛出:

org.springframework.beans.factory.NoUniqueBeanDefinitionException - if more than one bean of the given type was found

org.springframework.beans.BeansException

另请参阅:

BeanFactoryUtils.beanOfTypeIncludingAncestors(ListableBeanFactory, Class)

getOptionalBean

public static <T> T getOptionalBean(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                    Class<T> beanClass)
                             throws org.springframework.beans.BeansException

Get Optional Bean by Class.

类型参数:

T - The Class of Bean

参数:

beanFactory - ListableBeanFactory

beanClass - The Class of Bean

返回:

Bean object if found , or return null.

抛出:

org.springframework.beans.factory.NoUniqueBeanDefinitionException - if more than one bean of the given type was found

org.springframework.beans.BeansException

getBeanIfAvailable

public static <T> T getBeanIfAvailable(org.springframework.beans.factory.BeanFactory beanFactory,
                                       String beanName,
                                       Class<T> beanType)
                                throws org.springframework.beans.BeansException

Get the bean via the specified bean name and type if available

类型参数:

T - the bean type

参数:

beanFactory - BeanFactory

beanName - the bean name

beanType - the class of bean

返回:

the bean if available, or null

抛出:

org.springframework.beans.BeansException - in case of creation errors

从以下版本开始:

1.0.6

getSortedBeans

public static <T> List<T> getSortedBeans(org.springframework.beans.factory.ListableBeanFactory beanFactory,
                                         Class<T> type)

Get all sorted Beans of ListableBeanFactory in specified bean type.

类型参数:

T - bean type

参数:

beanFactory - ListableBeanFactory

type - bean type

返回:

all sorted Beans

sort

public static <T> Map<String,T> sort(Map<String,T> beansMap)

Sort Beans Map via AnnotationAwareOrderComparator.sort(List) rule

类型参数:

T - the type of Bean

参数:

beansMap - Beans Map

返回:

sorted Beans Map