cn.hippo4j.common.toolkit

类 ReflectUtil

java.lang.Object

cn.hippo4j.common.toolkit.ReflectUtil

public class ReflectUtil
extends Object

Reflect util.
Refer to cn.hutool.core.util.ReflectUtil:
this#getFieldsDirectly(Class, boolean)
this#setFieldValue(Object, Field, Object)
this#getDefaultValue(Class)

构造器概要

构造器

构造器和说明
ReflectUtil()

方法概要

限定符和类型	方法和说明
static Object	cast(Class<?> clazz, Object value) Cast the value to the type If a ClassCastException occurs, return null
static Object	createInstance(Class<?> cls) get instance
static Object	getDefaultValue(Class<?> clazz) the default value is obtained if it is a primitive type, and NULL if it is not
static Field	getField(Class<?> beanClass, String name)
static String	getFieldName(Field field)
static Field[]	getFields(Class<?> beanClass)
static Field[]	getFieldsDirectly(Class<?> beanClass, boolean withSuperClassFields)
static Object	getFieldValue(Object obj, Field field)
static Object	getFieldValue(Object obj, String fieldName)
static Method	getMethodByName(Class<?> clazz, String methodName) find the method associated with the method name if find multiple, return the first, parameter is equivocal
static Method	getMethodByName(Class<?> clazz, String methodName, Class<?>... arguments) find the method associated with the method name
static <T> T	invoke(Object obj, Method method, Object... arguments) invoke
static <T extends AccessibleObject> T	setAccessible(T accessibleObject)
static void	setFieldValue(Object obj, Field field, Object value)
static void	setFieldValue(Object obj, String fieldName, Object value)

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

ReflectUtil

public ReflectUtil()

方法详细资料

getFieldValue

public static Object getFieldValue(Object obj,
                                   String fieldName)

getFieldValue

public static Object getFieldValue(Object obj,
                                   Field field)

setAccessible

public static <T extends AccessibleObject> T setAccessible(T accessibleObject)

getField

public static Field getField(Class<?> beanClass,
                             String name)
                      throws SecurityException

抛出:

SecurityException

getFields

public static Field[] getFields(Class<?> beanClass)
                         throws SecurityException

抛出:

SecurityException

getFieldsDirectly

public static Field[] getFieldsDirectly(Class<?> beanClass,
                                        boolean withSuperClassFields)
                                 throws SecurityException

抛出:

SecurityException

getFieldName

public static String getFieldName(Field field)

setFieldValue

public static void setFieldValue(Object obj,
                                 String fieldName,
                                 Object value)
                          throws IllegalException

抛出:

IllegalException

setFieldValue

public static void setFieldValue(Object obj,
                                 Field field,
                                 Object value)
                          throws IllegalException

抛出:

IllegalException

getMethodByName

public static Method getMethodByName(Class<?> clazz,
                                     String methodName)

find the method associated with the method name
if find multiple, return the first, parameter is equivocal

参数:

clazz - the class

methodName - retrieves the method name

返回:

find method

getMethodByName

public static Method getMethodByName(Class<?> clazz,
                                     String methodName,
                                     Class<?>... arguments)

find the method associated with the method name

参数:

clazz - the class

methodName - retrieves the method name

arguments - matched parameters class

返回:

find method

cast

public static Object cast(Class<?> clazz,
                          Object value)

Cast the value to the type
If a ClassCastException occurs, return null

参数:

clazz - Cast class

value - The cast value

返回:

The value after the cast is completed

getDefaultValue

public static Object getDefaultValue(Class<?> clazz)

the default value is obtained if it is a primitive type, and NULL if it is not

参数:

clazz - clazz

返回:

default value

invoke

public static <T> T invoke(Object obj,
                           Method method,
                           Object... arguments)

invoke

参数:

obj - the obj

method - the method

arguments - parameters

返回:

result for zhe method

createInstance

public static Object createInstance(Class<?> cls)

get instance

参数:

cls - the class

返回:

new Instance