From cee572f237cb293e4a9070ef458356bc6daa2105 Mon Sep 17 00:00:00 2001 From: RuoYi <yzz_ivy@163.com> Date: 星期日, 19 七月 2020 10:25:40 +0800 Subject: [PATCH] 若依 3.0 --- ruoyi-common/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java | 812 +++++++++++++++++++++++++++++----------------------------- 1 files changed, 406 insertions(+), 406 deletions(-) diff --git a/ruoyi/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java similarity index 99% rename from ruoyi/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java rename to ruoyi-common/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java index b78e53e..5241101 100644 --- a/ruoyi/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/reflect/ReflectUtils.java @@ -1,406 +1,406 @@ -package com.ruoyi.common.utils.reflect; - -import java.lang.reflect.Field; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.lang.reflect.Modifier; -import java.lang.reflect.ParameterizedType; -import java.lang.reflect.Type; -import java.util.Date; -import org.apache.commons.lang3.StringUtils; -import org.apache.commons.lang3.Validate; -import org.apache.poi.ss.usermodel.DateUtil; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; -import com.ruoyi.common.core.text.Convert; -import com.ruoyi.common.utils.DateUtils; - -/** - * 反射工具类. 提供调用getter/setter方法, 访问私有变量, 调用私有方法, 获取泛型类型Class, 被AOP过的真实类等工具函数. - * - * @author ruoyi - */ -@SuppressWarnings("rawtypes") -public class ReflectUtils -{ - private static final String SETTER_PREFIX = "set"; - - private static final String GETTER_PREFIX = "get"; - - private static final String CGLIB_CLASS_SEPARATOR = "$$"; - - private static Logger logger = LoggerFactory.getLogger(ReflectUtils.class); - - /** - * 调用Getter方法. - * 支持多级,如:对象名.对象名.方法 - */ - @SuppressWarnings("unchecked") - public static <E> E invokeGetter(Object obj, String propertyName) - { - Object object = obj; - for (String name : StringUtils.split(propertyName, ".")) - { - String getterMethodName = GETTER_PREFIX + StringUtils.capitalize(name); - object = invokeMethod(object, getterMethodName, new Class[] {}, new Object[] {}); - } - return (E) object; - } - - /** - * 调用Setter方法, 仅匹配方法名。 - * 支持多级,如:对象名.对象名.方法 - */ - public static <E> void invokeSetter(Object obj, String propertyName, E value) - { - Object object = obj; - String[] names = StringUtils.split(propertyName, "."); - for (int i = 0; i < names.length; i++) - { - if (i < names.length - 1) - { - String getterMethodName = GETTER_PREFIX + StringUtils.capitalize(names[i]); - object = invokeMethod(object, getterMethodName, new Class[] {}, new Object[] {}); - } - else - { - String setterMethodName = SETTER_PREFIX + StringUtils.capitalize(names[i]); - invokeMethodByName(object, setterMethodName, new Object[] { value }); - } - } - } - - /** - * 直接读取对象属性值, 无视private/protected修饰符, 不经过getter函数. - */ - @SuppressWarnings("unchecked") - public static <E> E getFieldValue(final Object obj, final String fieldName) - { - Field field = getAccessibleField(obj, fieldName); - if (field == null) - { - logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); - return null; - } - E result = null; - try - { - result = (E) field.get(obj); - } - catch (IllegalAccessException e) - { - logger.error("不可能抛出的异常{}", e.getMessage()); - } - return result; - } - - /** - * 直接设置对象属性值, 无视private/protected修饰符, 不经过setter函数. - */ - public static <E> void setFieldValue(final Object obj, final String fieldName, final E value) - { - Field field = getAccessibleField(obj, fieldName); - if (field == null) - { - // throw new IllegalArgumentException("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); - logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); - return; - } - try - { - field.set(obj, value); - } - catch (IllegalAccessException e) - { - logger.error("不可能抛出的异常: {}", e.getMessage()); - } - } - - /** - * 直接调用对象方法, 无视private/protected修饰符. - * 用于一次性调用的情况,否则应使用getAccessibleMethod()函数获得Method后反复调用. - * 同时匹配方法名+参数类型, - */ - @SuppressWarnings("unchecked") - public static <E> E invokeMethod(final Object obj, final String methodName, final Class<?>[] parameterTypes, - final Object[] args) - { - if (obj == null || methodName == null) - { - return null; - } - Method method = getAccessibleMethod(obj, methodName, parameterTypes); - if (method == null) - { - logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + methodName + "] 方法 "); - return null; - } - try - { - return (E) method.invoke(obj, args); - } - catch (Exception e) - { - String msg = "method: " + method + ", obj: " + obj + ", args: " + args + ""; - throw convertReflectionExceptionToUnchecked(msg, e); - } - } - - /** - * 直接调用对象方法, 无视private/protected修饰符, - * 用于一次性调用的情况,否则应使用getAccessibleMethodByName()函数获得Method后反复调用. - * 只匹配函数名,如果有多个同名函数调用第一个。 - */ - @SuppressWarnings("unchecked") - public static <E> E invokeMethodByName(final Object obj, final String methodName, final Object[] args) - { - Method method = getAccessibleMethodByName(obj, methodName, args.length); - if (method == null) - { - // 如果为空不报错,直接返回空。 - logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + methodName + "] 方法 "); - return null; - } - try - { - // 类型转换(将参数数据类型转换为目标方法参数类型) - Class<?>[] cs = method.getParameterTypes(); - for (int i = 0; i < cs.length; i++) - { - if (args[i] != null && !args[i].getClass().equals(cs[i])) - { - if (cs[i] == String.class) - { - args[i] = Convert.toStr(args[i]); - if (StringUtils.endsWith((String) args[i], ".0")) - { - args[i] = StringUtils.substringBefore((String) args[i], ".0"); - } - } - else if (cs[i] == Integer.class) - { - args[i] = Convert.toInt(args[i]); - } - else if (cs[i] == Long.class) - { - args[i] = Convert.toLong(args[i]); - } - else if (cs[i] == Double.class) - { - args[i] = Convert.toDouble(args[i]); - } - else if (cs[i] == Float.class) - { - args[i] = Convert.toFloat(args[i]); - } - else if (cs[i] == Date.class) - { - if (args[i] instanceof String) - { - args[i] = DateUtils.parseDate(args[i]); - } - else - { - args[i] = DateUtil.getJavaDate((Double) args[i]); - } - } - } - } - return (E) method.invoke(obj, args); - } - catch (Exception e) - { - String msg = "method: " + method + ", obj: " + obj + ", args: " + args + ""; - throw convertReflectionExceptionToUnchecked(msg, e); - } - } - - /** - * 循环向上转型, 获取对象的DeclaredField, 并强制设置为可访问. - * 如向上转型到Object仍无法找到, 返回null. - */ - public static Field getAccessibleField(final Object obj, final String fieldName) - { - // 为空不报错。直接返回 null - if (obj == null) - { - return null; - } - Validate.notBlank(fieldName, "fieldName can't be blank"); - for (Class<?> superClass = obj.getClass(); superClass != Object.class; superClass = superClass.getSuperclass()) - { - try - { - Field field = superClass.getDeclaredField(fieldName); - makeAccessible(field); - return field; - } - catch (NoSuchFieldException e) - { - continue; - } - } - return null; - } - - /** - * 循环向上转型, 获取对象的DeclaredMethod,并强制设置为可访问. - * 如向上转型到Object仍无法找到, 返回null. - * 匹配函数名+参数类型。 - * 用于方法需要被多次调用的情况. 先使用本函数先取得Method,然后调用Method.invoke(Object obj, Object... args) - */ - public static Method getAccessibleMethod(final Object obj, final String methodName, - final Class<?>... parameterTypes) - { - // 为空不报错。直接返回 null - if (obj == null) - { - return null; - } - Validate.notBlank(methodName, "methodName can't be blank"); - for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType.getSuperclass()) - { - try - { - Method method = searchType.getDeclaredMethod(methodName, parameterTypes); - makeAccessible(method); - return method; - } - catch (NoSuchMethodException e) - { - continue; - } - } - return null; - } - - /** - * 循环向上转型, 获取对象的DeclaredMethod,并强制设置为可访问. - * 如向上转型到Object仍无法找到, 返回null. - * 只匹配函数名。 - * 用于方法需要被多次调用的情况. 先使用本函数先取得Method,然后调用Method.invoke(Object obj, Object... args) - */ - public static Method getAccessibleMethodByName(final Object obj, final String methodName, int argsNum) - { - // 为空不报错。直接返回 null - if (obj == null) - { - return null; - } - Validate.notBlank(methodName, "methodName can't be blank"); - for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType.getSuperclass()) - { - Method[] methods = searchType.getDeclaredMethods(); - for (Method method : methods) - { - if (method.getName().equals(methodName) && method.getParameterTypes().length == argsNum) - { - makeAccessible(method); - return method; - } - } - } - return null; - } - - /** - * 改变private/protected的方法为public,尽量不调用实际改动的语句,避免JDK的SecurityManager抱怨。 - */ - public static void makeAccessible(Method method) - { - if ((!Modifier.isPublic(method.getModifiers()) || !Modifier.isPublic(method.getDeclaringClass().getModifiers())) - && !method.isAccessible()) - { - method.setAccessible(true); - } - } - - /** - * 改变private/protected的成员变量为public,尽量不调用实际改动的语句,避免JDK的SecurityManager抱怨。 - */ - public static void makeAccessible(Field field) - { - if ((!Modifier.isPublic(field.getModifiers()) || !Modifier.isPublic(field.getDeclaringClass().getModifiers()) - || Modifier.isFinal(field.getModifiers())) && !field.isAccessible()) - { - field.setAccessible(true); - } - } - - /** - * 通过反射, 获得Class定义中声明的泛型参数的类型, 注意泛型必须定义在父类处 - * 如无法找到, 返回Object.class. - */ - @SuppressWarnings("unchecked") - public static <T> Class<T> getClassGenricType(final Class clazz) - { - return getClassGenricType(clazz, 0); - } - - /** - * 通过反射, 获得Class定义中声明的父类的泛型参数的类型. - * 如无法找到, 返回Object.class. - */ - public static Class getClassGenricType(final Class clazz, final int index) - { - Type genType = clazz.getGenericSuperclass(); - - if (!(genType instanceof ParameterizedType)) - { - logger.debug(clazz.getSimpleName() + "'s superclass not ParameterizedType"); - return Object.class; - } - - Type[] params = ((ParameterizedType) genType).getActualTypeArguments(); - - if (index >= params.length || index < 0) - { - logger.debug("Index: " + index + ", Size of " + clazz.getSimpleName() + "'s Parameterized Type: " - + params.length); - return Object.class; - } - if (!(params[index] instanceof Class)) - { - logger.debug(clazz.getSimpleName() + " not set the actual class on superclass generic parameter"); - return Object.class; - } - - return (Class) params[index]; - } - - public static Class<?> getUserClass(Object instance) - { - if (instance == null) - { - throw new RuntimeException("Instance must not be null"); - } - Class clazz = instance.getClass(); - if (clazz != null && clazz.getName().contains(CGLIB_CLASS_SEPARATOR)) - { - Class<?> superClass = clazz.getSuperclass(); - if (superClass != null && !Object.class.equals(superClass)) - { - return superClass; - } - } - return clazz; - - } - - /** - * 将反射时的checked exception转换为unchecked exception. - */ - public static RuntimeException convertReflectionExceptionToUnchecked(String msg, Exception e) - { - if (e instanceof IllegalAccessException || e instanceof IllegalArgumentException - || e instanceof NoSuchMethodException) - { - return new IllegalArgumentException(msg, e); - } - else if (e instanceof InvocationTargetException) - { - return new RuntimeException(msg, ((InvocationTargetException) e).getTargetException()); - } - return new RuntimeException(msg, e); - } -} +package com.ruoyi.common.utils.reflect; + +import java.lang.reflect.Field; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; +import java.util.Date; +import org.apache.commons.lang3.StringUtils; +import org.apache.commons.lang3.Validate; +import org.apache.poi.ss.usermodel.DateUtil; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import com.ruoyi.common.core.text.Convert; +import com.ruoyi.common.utils.DateUtils; + +/** + * 反射工具类. 提供调用getter/setter方法, 访问私有变量, 调用私有方法, 获取泛型类型Class, 被AOP过的真实类等工具函数. + * + * @author ruoyi + */ +@SuppressWarnings("rawtypes") +public class ReflectUtils +{ + private static final String SETTER_PREFIX = "set"; + + private static final String GETTER_PREFIX = "get"; + + private static final String CGLIB_CLASS_SEPARATOR = "$$"; + + private static Logger logger = LoggerFactory.getLogger(ReflectUtils.class); + + /** + * 调用Getter方法. + * 支持多级,如:对象名.对象名.方法 + */ + @SuppressWarnings("unchecked") + public static <E> E invokeGetter(Object obj, String propertyName) + { + Object object = obj; + for (String name : StringUtils.split(propertyName, ".")) + { + String getterMethodName = GETTER_PREFIX + StringUtils.capitalize(name); + object = invokeMethod(object, getterMethodName, new Class[] {}, new Object[] {}); + } + return (E) object; + } + + /** + * 调用Setter方法, 仅匹配方法名。 + * 支持多级,如:对象名.对象名.方法 + */ + public static <E> void invokeSetter(Object obj, String propertyName, E value) + { + Object object = obj; + String[] names = StringUtils.split(propertyName, "."); + for (int i = 0; i < names.length; i++) + { + if (i < names.length - 1) + { + String getterMethodName = GETTER_PREFIX + StringUtils.capitalize(names[i]); + object = invokeMethod(object, getterMethodName, new Class[] {}, new Object[] {}); + } + else + { + String setterMethodName = SETTER_PREFIX + StringUtils.capitalize(names[i]); + invokeMethodByName(object, setterMethodName, new Object[] { value }); + } + } + } + + /** + * 直接读取对象属性值, 无视private/protected修饰符, 不经过getter函数. + */ + @SuppressWarnings("unchecked") + public static <E> E getFieldValue(final Object obj, final String fieldName) + { + Field field = getAccessibleField(obj, fieldName); + if (field == null) + { + logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); + return null; + } + E result = null; + try + { + result = (E) field.get(obj); + } + catch (IllegalAccessException e) + { + logger.error("不可能抛出的异常{}", e.getMessage()); + } + return result; + } + + /** + * 直接设置对象属性值, 无视private/protected修饰符, 不经过setter函数. + */ + public static <E> void setFieldValue(final Object obj, final String fieldName, final E value) + { + Field field = getAccessibleField(obj, fieldName); + if (field == null) + { + // throw new IllegalArgumentException("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); + logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + fieldName + "] 字段 "); + return; + } + try + { + field.set(obj, value); + } + catch (IllegalAccessException e) + { + logger.error("不可能抛出的异常: {}", e.getMessage()); + } + } + + /** + * 直接调用对象方法, 无视private/protected修饰符. + * 用于一次性调用的情况,否则应使用getAccessibleMethod()函数获得Method后反复调用. + * 同时匹配方法名+参数类型, + */ + @SuppressWarnings("unchecked") + public static <E> E invokeMethod(final Object obj, final String methodName, final Class<?>[] parameterTypes, + final Object[] args) + { + if (obj == null || methodName == null) + { + return null; + } + Method method = getAccessibleMethod(obj, methodName, parameterTypes); + if (method == null) + { + logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + methodName + "] 方法 "); + return null; + } + try + { + return (E) method.invoke(obj, args); + } + catch (Exception e) + { + String msg = "method: " + method + ", obj: " + obj + ", args: " + args + ""; + throw convertReflectionExceptionToUnchecked(msg, e); + } + } + + /** + * 直接调用对象方法, 无视private/protected修饰符, + * 用于一次性调用的情况,否则应使用getAccessibleMethodByName()函数获得Method后反复调用. + * 只匹配函数名,如果有多个同名函数调用第一个。 + */ + @SuppressWarnings("unchecked") + public static <E> E invokeMethodByName(final Object obj, final String methodName, final Object[] args) + { + Method method = getAccessibleMethodByName(obj, methodName, args.length); + if (method == null) + { + // 如果为空不报错,直接返回空。 + logger.debug("在 [" + obj.getClass() + "] 中,没有找到 [" + methodName + "] 方法 "); + return null; + } + try + { + // 类型转换(将参数数据类型转换为目标方法参数类型) + Class<?>[] cs = method.getParameterTypes(); + for (int i = 0; i < cs.length; i++) + { + if (args[i] != null && !args[i].getClass().equals(cs[i])) + { + if (cs[i] == String.class) + { + args[i] = Convert.toStr(args[i]); + if (StringUtils.endsWith((String) args[i], ".0")) + { + args[i] = StringUtils.substringBefore((String) args[i], ".0"); + } + } + else if (cs[i] == Integer.class) + { + args[i] = Convert.toInt(args[i]); + } + else if (cs[i] == Long.class) + { + args[i] = Convert.toLong(args[i]); + } + else if (cs[i] == Double.class) + { + args[i] = Convert.toDouble(args[i]); + } + else if (cs[i] == Float.class) + { + args[i] = Convert.toFloat(args[i]); + } + else if (cs[i] == Date.class) + { + if (args[i] instanceof String) + { + args[i] = DateUtils.parseDate(args[i]); + } + else + { + args[i] = DateUtil.getJavaDate((Double) args[i]); + } + } + } + } + return (E) method.invoke(obj, args); + } + catch (Exception e) + { + String msg = "method: " + method + ", obj: " + obj + ", args: " + args + ""; + throw convertReflectionExceptionToUnchecked(msg, e); + } + } + + /** + * 循环向上转型, 获取对象的DeclaredField, 并强制设置为可访问. + * 如向上转型到Object仍无法找到, 返回null. + */ + public static Field getAccessibleField(final Object obj, final String fieldName) + { + // 为空不报错。直接返回 null + if (obj == null) + { + return null; + } + Validate.notBlank(fieldName, "fieldName can't be blank"); + for (Class<?> superClass = obj.getClass(); superClass != Object.class; superClass = superClass.getSuperclass()) + { + try + { + Field field = superClass.getDeclaredField(fieldName); + makeAccessible(field); + return field; + } + catch (NoSuchFieldException e) + { + continue; + } + } + return null; + } + + /** + * 循环向上转型, 获取对象的DeclaredMethod,并强制设置为可访问. + * 如向上转型到Object仍无法找到, 返回null. + * 匹配函数名+参数类型。 + * 用于方法需要被多次调用的情况. 先使用本函数先取得Method,然后调用Method.invoke(Object obj, Object... args) + */ + public static Method getAccessibleMethod(final Object obj, final String methodName, + final Class<?>... parameterTypes) + { + // 为空不报错。直接返回 null + if (obj == null) + { + return null; + } + Validate.notBlank(methodName, "methodName can't be blank"); + for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType.getSuperclass()) + { + try + { + Method method = searchType.getDeclaredMethod(methodName, parameterTypes); + makeAccessible(method); + return method; + } + catch (NoSuchMethodException e) + { + continue; + } + } + return null; + } + + /** + * 循环向上转型, 获取对象的DeclaredMethod,并强制设置为可访问. + * 如向上转型到Object仍无法找到, 返回null. + * 只匹配函数名。 + * 用于方法需要被多次调用的情况. 先使用本函数先取得Method,然后调用Method.invoke(Object obj, Object... args) + */ + public static Method getAccessibleMethodByName(final Object obj, final String methodName, int argsNum) + { + // 为空不报错。直接返回 null + if (obj == null) + { + return null; + } + Validate.notBlank(methodName, "methodName can't be blank"); + for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType.getSuperclass()) + { + Method[] methods = searchType.getDeclaredMethods(); + for (Method method : methods) + { + if (method.getName().equals(methodName) && method.getParameterTypes().length == argsNum) + { + makeAccessible(method); + return method; + } + } + } + return null; + } + + /** + * 改变private/protected的方法为public,尽量不调用实际改动的语句,避免JDK的SecurityManager抱怨。 + */ + public static void makeAccessible(Method method) + { + if ((!Modifier.isPublic(method.getModifiers()) || !Modifier.isPublic(method.getDeclaringClass().getModifiers())) + && !method.isAccessible()) + { + method.setAccessible(true); + } + } + + /** + * 改变private/protected的成员变量为public,尽量不调用实际改动的语句,避免JDK的SecurityManager抱怨。 + */ + public static void makeAccessible(Field field) + { + if ((!Modifier.isPublic(field.getModifiers()) || !Modifier.isPublic(field.getDeclaringClass().getModifiers()) + || Modifier.isFinal(field.getModifiers())) && !field.isAccessible()) + { + field.setAccessible(true); + } + } + + /** + * 通过反射, 获得Class定义中声明的泛型参数的类型, 注意泛型必须定义在父类处 + * 如无法找到, 返回Object.class. + */ + @SuppressWarnings("unchecked") + public static <T> Class<T> getClassGenricType(final Class clazz) + { + return getClassGenricType(clazz, 0); + } + + /** + * 通过反射, 获得Class定义中声明的父类的泛型参数的类型. + * 如无法找到, 返回Object.class. + */ + public static Class getClassGenricType(final Class clazz, final int index) + { + Type genType = clazz.getGenericSuperclass(); + + if (!(genType instanceof ParameterizedType)) + { + logger.debug(clazz.getSimpleName() + "'s superclass not ParameterizedType"); + return Object.class; + } + + Type[] params = ((ParameterizedType) genType).getActualTypeArguments(); + + if (index >= params.length || index < 0) + { + logger.debug("Index: " + index + ", Size of " + clazz.getSimpleName() + "'s Parameterized Type: " + + params.length); + return Object.class; + } + if (!(params[index] instanceof Class)) + { + logger.debug(clazz.getSimpleName() + " not set the actual class on superclass generic parameter"); + return Object.class; + } + + return (Class) params[index]; + } + + public static Class<?> getUserClass(Object instance) + { + if (instance == null) + { + throw new RuntimeException("Instance must not be null"); + } + Class clazz = instance.getClass(); + if (clazz != null && clazz.getName().contains(CGLIB_CLASS_SEPARATOR)) + { + Class<?> superClass = clazz.getSuperclass(); + if (superClass != null && !Object.class.equals(superClass)) + { + return superClass; + } + } + return clazz; + + } + + /** + * 将反射时的checked exception转换为unchecked exception. + */ + public static RuntimeException convertReflectionExceptionToUnchecked(String msg, Exception e) + { + if (e instanceof IllegalAccessException || e instanceof IllegalArgumentException + || e instanceof NoSuchMethodException) + { + return new IllegalArgumentException(msg, e); + } + else if (e instanceof InvocationTargetException) + { + return new RuntimeException(msg, ((InvocationTargetException) e).getTargetException()); + } + return new RuntimeException(msg, e); + } +} -- Gitblit v1.9.2