org.voovan.tools.reflect.TReflect Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of voovan-common Show documentation
Show all versions of voovan-common Show documentation
Voovan is a java framwork and it not depends on any third-party framework.
package org.voovan.tools.reflect;
import org.voovan.tools.TDateTime;
import org.voovan.tools.TObject;
import org.voovan.tools.TString;
import org.voovan.tools.TUnsafe;
import org.voovan.tools.json.JSON;
import org.voovan.tools.json.annotation.NotJSON;
import org.voovan.tools.reflect.annotation.NotSerialization;
import sun.reflect.generics.reflectiveObjects.TypeVariableImpl;
import java.lang.reflect.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.Map.Entry;
/**
* 反射工具类
*
* @author helyho
*
* Voovan Framework.
* WebSite: https://github.com/helyho/Voovan
* Licence: Apache v2 License
*/
public class TReflect {
private static Map fields = new HashMap();
private static Map methods = new HashMap();
private static Map fieldArrays = new HashMap();
private static Map methodArrays = new HashMap();
/**
* 获得类所有的Field
*
* @param clazz 类对象
* @return Field数组
*/
public static Field[] getFields(Class clazz) {
String mark = clazz.getCanonicalName();
Field[] fields = null;
if(fieldArrays.containsKey(mark)){
fields = fieldArrays.get(mark);
}else {
ArrayList fieldArray = new ArrayList();
for (; clazz!=null && clazz != Object.class; clazz = clazz.getSuperclass()) {
Field[] tmpFields = clazz.getDeclaredFields();
fieldArray.addAll(Arrays.asList(tmpFields));
}
fields = fieldArray.toArray(new Field[]{});
fieldArrays.put(mark, fields);
fieldArray.clear();
}
return fields;
}
/**
* 查找类特定的Field
*
* @param clazz 类对象
* @param fieldName field 名称
* @return field 对象
* @throws NoSuchFieldException 无 Field 异常
* @throws SecurityException 安全性异常
*/
public static Field findField(Class clazz, String fieldName)
throws ReflectiveOperationException {
String mark = clazz.getCanonicalName()+"#"+fieldName;
if(fields.containsKey(mark)){
return fields.get(mark);
}else {
Field field = null;
for (; clazz!=null && clazz != Object.class; clazz = clazz.getSuperclass()) {
try {
field = clazz.getDeclaredField(fieldName);
break;
}catch(ReflectiveOperationException e){
field = null;
}
}
fields.put(mark, field);
return field;
}
}
/**
* 查找类特定的Field
* 不区分大小写,并且替换掉特殊字符
* @param clazz 类对象
* @param fieldName Field 名称
* @return Field 对象
* @throws ReflectiveOperationException 反射异常
*/
public static Field findFieldIgnoreCase(Class clazz, String fieldName)
throws ReflectiveOperationException{
String mark = clazz.getCanonicalName()+"#"+fieldName;
if(fields.containsKey(mark)){
return fields.get(mark);
}else {
for (Field field : getFields(clazz)) {
if (field.getName().equalsIgnoreCase(fieldName)) {
fields.put(mark, field);
return field;
}
}
}
return null;
}
/**
* 获取范型类型
* @param type 类型对象
* @return Class 对象
* @throws ClassNotFoundException 类找不到异常
*/
public static Class[] getGenericClass(ParameterizedType type) throws ClassNotFoundException{
Class[] result = null;
Type[] actualType = type.getActualTypeArguments();
result = new Class[actualType.length];
for(int i=0;i", "");
result[i] = Class.forName(classStr);
}
}
return result;
}
/**
* 获取 Field 的范型类型
* @param field field 对象
* @return 返回范型类型数组
* @throws ClassNotFoundException 类找不到异常
*/
public static Class[] getFieldGenericType(Field field) throws ClassNotFoundException {
Type fieldType = field.getGenericType();
if(fieldType instanceof ParameterizedType){
return getGenericClass((ParameterizedType)fieldType);
}
return null;
}
/**
* 获取类中指定Field的值
* @param 范型
* @param obj 对象
* @param fieldName Field 名称
* @return Field 的值
* @throws ReflectiveOperationException 反射异常
*/
@SuppressWarnings("unchecked")
static public T getFieldValue(Object obj, String fieldName)
throws ReflectiveOperationException {
Field field = findField(obj.getClass(), fieldName);
field.setAccessible(true);
return (T) field.get(obj);
}
/**
* 更新对象中指定的Field的值
* 注意:对 private 等字段有效
*
* @param obj 对象
* @param fieldName field 名称
* @param fieldValue field 值
* @throws ReflectiveOperationException 反射异常
*/
public static void setFieldValue(Object obj, String fieldName,
Object fieldValue) throws ReflectiveOperationException {
Field field = findField(obj.getClass(), fieldName);
field.setAccessible(true);
field.set(obj, fieldValue);
}
/**
* 将对象中的field和其值组装成Map 静态字段(static修饰的)不包括
*
* @param obj 对象
* @return 所有 field 名称-值拼装的 Map
* @throws ReflectiveOperationException 反射异常
*/
public static Map getFieldValues(Object obj)
throws ReflectiveOperationException {
HashMap result = new HashMap();
Field[] fields = getFields(obj.getClass());
for (Field field : fields) {
if (!Modifier.isStatic(field.getModifiers()) &&
field.getAnnotation(NotJSON.class)==null &&
field.getAnnotation(NotSerialization.class)==null) {
Object value = getFieldValue(obj, field.getName());
result.put(field, value);
}
}
return result;
}
/**
* 查找类中的方法
* @param clazz 类对象
* @param name 方法名
* @param paramTypes 参数类型
* @return 方法对象
* @throws ReflectiveOperationException 反射异常
*/
public static Method findMethod(Class clazz, String name,
Class... paramTypes) throws ReflectiveOperationException {
String mark = clazz.getCanonicalName()+"#"+name;
for(Class paramType : paramTypes){
mark = mark + "$" + paramType.getCanonicalName();
}
if(methods.containsKey(mark)){
return methods.get(mark);
}else {
Method method = null;
for (; clazz!=null && clazz != Object.class; clazz = clazz.getSuperclass()) {
try {
method = clazz.getDeclaredMethod(name, paramTypes);
break;
}catch(ReflectiveOperationException e){
method = null;
}
}
methods.put(mark, method);
return method;
}
}
/**
* 查找类中的方法(使用参数数量)
* @param clazz 类对象
* @param name 方法名
* @param paramCount 参数数量
* @return 方法对象
* @throws ReflectiveOperationException 反射异常
*/
public static Method[] findMethod(Class clazz, String name,
int paramCount) throws ReflectiveOperationException {
Method[] methods = null;
String mark = clazz.getCanonicalName()+"#"+name+"@"+paramCount;
if(methodArrays.containsKey(mark)){
return methodArrays.get(mark);
} else {
ArrayList methodList = new ArrayList();
Method[] allMethods = getMethods(clazz, name);
for (Method method : allMethods) {
if (method.getParameterTypes().length == paramCount) {
methodList.add(method);
}
}
methods = methodList.toArray(new Method[]{});
methodArrays.put(mark,methods);
methodList.clear();
}
return methods;
}
/**
* 获取类的方法集合
* @param clazz 类对象
* @return Method 对象数组
*/
public static Method[] getMethods(Class clazz) {
Method[] methods = null;
String mark = clazz.getCanonicalName();
if(methodArrays.containsKey(mark)){
return methodArrays.get(mark);
} else {
List methodList = new ArrayList();
for (; clazz!=null && clazz != Object.class; clazz = clazz.getSuperclass()) {
Method[] tmpMethods = clazz.getDeclaredMethods();
methodList.addAll(Arrays.asList(tmpMethods));
}
methods = methodList.toArray(new Method[]{});
methodList.clear();
methodArrays.put(mark,methods);
}
return methods;
}
/**
* 获取类的特定方法的集合
* 类中可能存在同名方法
* @param clazz 类对象
* @param name 方法名
* @return Method 对象数组
*/
public static Method[] getMethods(Class clazz,String name) {
Method[] methods = null;
String mark = clazz.getCanonicalName()+"#"+name;
if(methodArrays.containsKey(mark)){
return methodArrays.get(mark);
} else {
ArrayList methodList = new ArrayList();
Method[] allMethods = getMethods(clazz);
for (Method method : allMethods) {
if (method.getName().equals(name))
methodList.add(method);
}
methods = methodList.toArray(new Method[0]);
methodList.clear();
methodArrays.put(mark,methods);
}
return methods;
}
/**
* 获取方法的参数返回值的范型类型
* @param method method 对象
* @param parameterIndex 参数索引(大于0)参数索引位置[第一个参数为0,以此类推], (-1) 返回值
* @return 返回范型类型数组
* @throws ClassNotFoundException 类找不到异常
*/
public static Class[] getMethodParameterGenericType(Method method,int parameterIndex) throws ClassNotFoundException {
Class[] result = null;
Type parameterType;
if(parameterIndex == -1){
parameterType = method.getGenericReturnType();
}else{
parameterType = method.getGenericParameterTypes()[parameterIndex];
}
if(parameterType instanceof ParameterizedType){
return getGenericClass((ParameterizedType)parameterType);
}
return null;
}
/**
* 使用对象执行它的一个方法
* 对对象执行一个指定Method对象的方法
* @param obj 执行方法的对象
* @param method 方法对象
* @param parameters 多个参数
* @return 方法返回结果
* @throws ReflectiveOperationException 反射异常
*/
public static Object invokeMethod(Object obj, Method method, Object... parameters)
throws ReflectiveOperationException {
return method.invoke(obj, parameters);
}
/**
* 使用对象执行方法
* 推荐使用的方法,这个方法会自动寻找参数匹配度最好的方法并执行
* 对对象执行一个通过 方法名和参数列表选择的方法
* @param obj 执行方法的对象,如果调用静态方法直接传 Class 类型的对象
* @param name 执行方法名
* @param args 方法参数
* @return 方法返回结果
* @throws ReflectiveOperationException 反射异常
*/
public static Object invokeMethod(Object obj, String name, Object... args)
throws ReflectiveOperationException {
Class[] parameterTypes = getArrayClasses(args);
Method method = null;
Class objClass = (obj instanceof Class) ? (Class)obj : obj.getClass();
try {
method = findMethod(objClass, name, parameterTypes);
method.setAccessible(true);
return method.invoke(obj, args);
}catch(Exception e){
Exception lastExecption = e;
if(e instanceof NoSuchMethodException || method == null) {
//找到这个名称的所有方法
Method[] methods = findMethod(objClass, name, parameterTypes.length);
for (Method similarMethod : methods) {
Type[] methodParamTypes = similarMethod.getGenericParameterTypes();
//匹配参数数量相等的方法
if (methodParamTypes.length == args.length) {
try {
Object[] convertedParams = new Object[args.length];
for (int i = 0; i < methodParamTypes.length; i++) {
Type parameterType = methodParamTypes[i];
//如果范型类型没有指定则使用 Object 作为默认类型
if(parameterType instanceof TypeVariableImpl){
parameterType = Object.class;
}
//参数类型转换
String value = "";
//这里对参数类型是 Object或者是范型 的提供支持
if (parameterType != Object.class) {
Class argClass = args[i].getClass();
//复杂的对象通过 JSON转换成字符串,再转换成特定类型的对象
if (args[i] instanceof Collection ||
args[i] instanceof Map ||
argClass.isArray() ||
!TReflect.isBasicType(argClass)) {
value = JSON.toJSON(args[i]);
} else {
value = args[i].toString();
}
convertedParams[i] = TString.toObject(value, parameterType);
} else {
convertedParams[i] = args[i];
}
}
method = similarMethod;
method.setAccessible(true);
return method.invoke(obj, convertedParams);
} catch (Exception ex) {
lastExecption = (Exception) ex.getCause();
continue;
}
}
}
}
if ( !(lastExecption instanceof ReflectiveOperationException) ) {
lastExecption = new ReflectiveOperationException(lastExecption);
}
throw (ReflectiveOperationException)lastExecption;
}
}
/**
* 构造新的对象
* 通过参数中的构造参数对象parameters,选择特定的构造方法构造
* @param 范型
* @param clazz 类对象
* @param parameters 构造方法参数
* @return 新的对象
* @throws ReflectiveOperationException 反射异常
*/
public static T newInstance(Class clazz, Object ...parameters)
throws ReflectiveOperationException {
Class[] parameterTypes = getArrayClasses(parameters);
Constructor constructor = null;
try {
if (parameters.length == 0) {
constructor = clazz.getConstructor();
} else {
constructor = clazz.getConstructor(parameterTypes);
}
return constructor.newInstance(parameters);
}catch(Exception e){
Exception lastExecption = e;
if(constructor==null) {
Constructor[] constructors = clazz.getConstructors();
for (Constructor similarConstructor : constructors) {
Class[] methodParamTypes = similarConstructor.getParameterTypes();
//匹配参数数量相等的方法
if (methodParamTypes.length == parameters.length) {
try {
Object[] convertedParams = new Object[parameters.length];
for (int i = 0; i < methodParamTypes.length; i++) {
Class parameterType = methodParamTypes[i];
//参数类型转换
String value = "";
Class parameterClass = parameters[i].getClass();
//复杂的对象通过 JSON转换成字符串,再转换成特定类型的对象
if (parameters[i] instanceof Collection ||
parameters[i] instanceof Map ||
parameterClass.isArray() ||
!TReflect.isBasicType(parameterClass)) {
value = JSON.toJSON(parameters[i]);
} else {
value = parameters[i].toString();
}
convertedParams[i] = TString.toObject(value, parameterType);
}
constructor = similarConstructor;
return constructor.newInstance(convertedParams);
} catch (Exception ex) {
continue;
}
}
}
}
if ( !(lastExecption instanceof ReflectiveOperationException) ) {
lastExecption = new ReflectiveOperationException(lastExecption);
}
//尝试使用 Unsafe 分配
try{
return allocateInstance(clazz);
}catch(Exception ex) {
throw e;
}
}
}
/**
* 构造新的对象
* @param 范型
* @param className 类名称
* @param parameters 构造方法参数
* @return 新的对象
* @throws ReflectiveOperationException 反射异常
*/
public static T newInstance(String className, Object ...parameters) throws ReflectiveOperationException {
@SuppressWarnings("unchecked")
Class clazz = (Class) Class.forName(className);
return newInstance(clazz,parameters);
}
/**
* 采用 Unsafe 构造一个对象,无须参数
* @param clazz 对象类型
* @param 范型
* @return 新的对象
* @throws InstantiationException 实例化异常
*/
public static T allocateInstance(Class clazz) throws InstantiationException {
return (T)TUnsafe.getUnsafe().allocateInstance(clazz);
}
/**
* 将对象数组转换成,对象类型的数组
* @param objs 对象类型数组
* @return 类数组
*/
public static Class[] getArrayClasses(Object[] objs){
Class[] parameterTypes= new Class[objs.length];
for(int i=0;i 范型
* @throws ReflectiveOperationException 反射异常
* @throws ParseException 解析异常
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public static T getObjectFromMap(Type type, Map mapArg, boolean ignoreCase)
throws ReflectiveOperationException, ParseException {
T obj = null;
Class clazz = null;
Class[] genericType = null;
if(type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) type;
clazz = (Class)parameterizedType.getRawType();
try {
genericType = getGenericClass(parameterizedType);
}catch(ClassNotFoundException e){
genericType = new Class[]{Object.class};
}
}else if(type instanceof Class){
clazz = (Class)type;
}
if(mapArg==null){
return null;
}
Object singleValue = null;
if(!mapArg.isEmpty()){
singleValue = mapArg.values().iterator().next();
}
// java标准对象
if (clazz.isPrimitive() || clazz == Object.class){
if(singleValue.getClass() != clazz) {
obj = TString.toObject(singleValue.toString(), clazz);
} else {
obj = (T)singleValue;
}
}
//java 日期对象
else if(isExtendsByClass(clazz,Date.class)){
//取 Map.Values 里的递第一个值
String value = singleValue==null?null:singleValue.toString();
SimpleDateFormat dateFormat = new SimpleDateFormat(TDateTime.STANDER_DATETIME_TEMPLATE);
Date dateObj = singleValue!=null?dateFormat.parse(value.toString()):null;
obj = (T)TReflect.newInstance(clazz,dateObj.getTime());
}
//Map 类型
else if(isImpByInterface(clazz,Map.class)){
//不可构造的类型使用最常用的类型
if(Modifier.isAbstract(clazz.getModifiers()) && Modifier.isInterface(clazz.getModifiers())){
clazz = HashMap.class;
}
Map mapObject = TObject.cast(newInstance(clazz));
if(genericType!=null) {
Iterator iterator = mapArg.entrySet().iterator();
while (iterator.hasNext()) {
Entry entry = (Entry) iterator.next();
Map keyOfMap = null;
Map valueOfMap = null;
if (entry.getKey() instanceof Map) {
keyOfMap = (Map) entry.getKey();
} else {
keyOfMap = TObject.asMap("value", entry.getKey());
}
if (entry.getValue() instanceof Map) {
valueOfMap = (Map) entry.getValue();
} else {
valueOfMap = TObject.asMap("value", entry.getValue());
}
Object keyObj = getObjectFromMap(genericType[0], keyOfMap, ignoreCase);
Object valueObj = getObjectFromMap(genericType[1], valueOfMap, ignoreCase);
mapObject.put(keyObj, valueObj);
}
}else{
mapObject.putAll(mapArg);
}
obj = (T)mapObject;
}
//Collection 类型
else if(isImpByInterface(clazz,Collection.class)){
//不可构造的类型使用最常用的类型
if(Modifier.isAbstract(clazz.getModifiers()) || Modifier.isInterface(clazz.getModifiers())){
clazz = ArrayList.class;
}
Collection listObject = TObject.cast(newInstance(clazz));
if(singleValue!=null){
if(genericType!=null){
for (Object listItem : (Collection)singleValue) {
Map valueOfMap = null;
if (listItem instanceof Map) {
valueOfMap = (Map) listItem;
} else {
valueOfMap = TObject.asMap("value", listItem);
}
Object item = getObjectFromMap(genericType[0], valueOfMap, ignoreCase);
listObject.add(item);
}
}else{
listObject.addAll((Collection)singleValue);
}
}
obj = (T)listObject;
}
//Array 类型
else if(clazz.isArray()){
Class arrayClass = clazz.getComponentType();
Object tempArrayObj = Array.newInstance(arrayClass, 0);
return (T)((Collection)singleValue).toArray((Object[])tempArrayObj);
}
//java基本对象
else if (TReflect.isBasicType(clazz)) {
//取 Map.Values 里的递第一个值
String value = singleValue==null?null:singleValue.toString();
obj = (T)(singleValue==null?null:newInstance(clazz, value));
}
// 复杂对象
else {
obj = (T)newInstance(clazz);
for(Entry argEntry : mapArg.entrySet()){
String key = argEntry.getKey();
Object value = argEntry.getValue();
Field field = null;
if(ignoreCase) {
//忽略大小写匹配
field = findFieldIgnoreCase(clazz, key);
}else{
//精确匹配属性
field = findField(clazz, key);
}
if(field!=null) {
String fieldName = field.getName();
Class fieldType = field.getType();
Type fieldGenericType = field.getGenericType();
try {
if(value != null) {
//通过 JSON 将,String类型的 value转换,将 String 转换成 Collection, Map 或者 复杂类型 对象作为参数
if( value instanceof String &&
(
isImpByInterface(fieldType, Map.class) ||
isImpByInterface(fieldType, Collection.class) ||
!TReflect.isBasicType(fieldType)
)
){
value = TString.toObject(value.toString(), fieldType);
}
//对于 目标对象类型为 Map 的属性进行处理,查找范型,并转换为范型定义的类型
if (isImpByInterface(fieldType, Map.class) && value instanceof Map) {
value = getObjectFromMap(fieldGenericType, (Map)value, ignoreCase);
}
//对于 目标对象类型为 Collection 的属性进行处理,查找范型,并转换为范型定义的类型
else if (isImpByInterface(fieldType, Collection.class) && value instanceof Collection) {
value = getObjectFromMap(fieldGenericType, TObject.asMap("value", value), ignoreCase);
}
//对于 目标对象类型不是 Map,则认定为复杂类型
else if (!isImpByInterface(fieldType, Map.class)) {
if(value instanceof Map) {
value = getObjectFromMap(fieldType, (Map) value, ignoreCase);
}else{
value = getObjectFromMap(fieldType, TObject.asMap("value", value), ignoreCase);
}
}else{
throw new ReflectiveOperationException("Conver field object error! Exception type: " +
fieldType.getName() +
", Object type: "+
value.getClass().getName());
}
}
setFieldValue(obj, fieldName, value);
}catch(Exception e){
throw new ReflectiveOperationException("Fill object " + obj.getClass().getCanonicalName() +
"#"+fieldName+" failed",e);
}
}
}
}
return obj;
}
/**
* 将对象转换成 Map
* key 对象属性名称
* value 对象属性值
* @param obj 待转换的对象
* @return 转后的 Map
* @throws ReflectiveOperationException 反射异常
*/
public static Map getMapfromObject(Object obj) throws ReflectiveOperationException{
Map mapResult = new HashMap();
//如果是 java 标准类型
if(obj==null || TReflect.isBasicType(obj.getClass())){
mapResult.put(null, obj);
}
//java 日期对象
else if(isExtendsByClass(obj.getClass(),Date.class)){
mapResult.put(null,TDateTime.format((Date) obj, TDateTime.STANDER_DATETIME_TEMPLATE));
}
//对 Collection 类型的处理
else if(obj instanceof Collection){
Collection collection = (Collection) newInstance(obj.getClass());
for(Object collectionItem : (Collection)obj) {
Map item = getMapfromObject(collectionItem);
collection.add( (item.size()==1 && item.containsKey(null)) ? item.get(null) : item);
}
mapResult.put(null, collection);
}
//对 Array 类型的处理
else if(obj.getClass().isArray()){
Class arrayClass = obj.getClass().getComponentType();
Object targetArray = Array.newInstance(arrayClass, Array.getLength(obj));
for(int i=0;i item = getMapfromObject(arrayItem);
Array.set(targetArray, i, (item.size()==1 && item.containsKey(null)) ? item.get(null) : item);
}
mapResult.put(null, targetArray);
}
//对 Map 类型的处理
else if(obj instanceof Map){
Map mapObject = (Map)obj;
Map map = (Map)newInstance(obj.getClass());
Iterator iterator = mapObject.entrySet().iterator();
while(iterator.hasNext()) {
Entry entry = (Entry) iterator.next();
Map keyItem = getMapfromObject(entry.getKey());
Map valueItem = getMapfromObject(entry.getValue());
Object key = (keyItem.size()==1 && keyItem.containsKey(null)) ? keyItem.get(null) : keyItem;
Object value = (valueItem.size()==1 && valueItem.containsKey(null)) ? valueItem.get(null) : valueItem;
map.put(key, value);
}
mapResult.put(null, map);
}
//复杂对象类型
else{
Map fieldValues = TReflect.getFieldValues(obj);
for(Entry entry : fieldValues.entrySet()){
String key = entry.getKey().getName();
Object value = entry.getValue();
if(value == null){
mapResult.put(key, value);
}else if(!key.contains("$")){
Class valueClass = entry.getValue().getClass();
if(TReflect.isBasicType(valueClass)){
mapResult.put(key, value);
}else {
//如果是复杂类型则递归调用
Map resultMap = getMapfromObject(value);
if(resultMap.size()==1 && resultMap.containsKey(null)){
mapResult.put(key, resultMap.get(null));
}else{
mapResult.put(key,resultMap);
}
}
}
}
}
return mapResult;
}
/**
* 判断某个类型是否实现了某个接口
* 包括判断其父接口
* @param type 被判断的类型
* @param interfaceClass 检查是否实现了次类的接口
* @return 是否实现某个接口
*/
public static boolean isImpByInterface(Class type,Class interfaceClass){
if(type==interfaceClass){
return true;
}
Class[] interfaces= type.getInterfaces();
for (Class interfaceItem : interfaces) {
if (interfaceItem.equals(interfaceClass)) {
return true;
}
else {
return isImpByInterface(interfaceItem,interfaceClass);
}
}
return false;
}
/**
* 判断某个类型是否继承于某个类
* 包括判断其父类
* @param type 判断的类型
* @param extendsClass 用于判断的父类类型
* @return 是否继承于某个类
*/
public static boolean isExtendsByClass(Class type,Class extendsClass){
if(extendsClass == type){
return true;
}
Class superClass = type;
do{
if(superClass.equals(extendsClass)){
return true;
}
superClass = superClass.getSuperclass();
}while(superClass!=null && Object.class != superClass);
return false;
}
/**
* 获取类的继承树上的所有父类
* @param type 类型 Class
* @return 所有父类
*/
public static Class[] getAllExtendAndInterfaceClass(Class type){
if(type == null){
return null;
}
ArrayList classes = new ArrayList();
Class superClass = type;
do{
superClass = superClass.getSuperclass();
classes.addAll(Arrays.asList(superClass.getInterfaces()));
classes.add(superClass);
}while(superClass!=null && Object.class != superClass);
return classes.toArray(new Class[]{});
}
/**
* 获取类的 json 形式的描述
* @param clazz Class 类型对象
* @return 类的 json 形式的描述
*/
public static String getClazzJSONModel(Class clazz){
StringBuilder jsonStrBuilder = new StringBuilder();
if(TReflect.isBasicType(clazz)){
jsonStrBuilder.append(clazz.getName());
} else if(clazz.isArray()){
String clazzName = clazz.getName();
clazzName = clazzName.substring(clazzName.lastIndexOf(".")+1,clazzName.length()-2)+"[]";
jsonStrBuilder.append(clazzName);
} else {
jsonStrBuilder.append("{");
for (Field field : TReflect.getFields(clazz)) {
jsonStrBuilder.append("\"");
jsonStrBuilder.append(field.getName());
jsonStrBuilder.append("\":");
String filedValueModel = getClazzJSONModel(field.getType());
if(filedValueModel.startsWith("{") && filedValueModel.endsWith("}")) {
jsonStrBuilder.append(filedValueModel);
jsonStrBuilder.append(",");
} else if(filedValueModel.startsWith("[") && filedValueModel.endsWith("]")) {
jsonStrBuilder.append(filedValueModel);
jsonStrBuilder.append(",");
} else {
jsonStrBuilder.append("\"");
jsonStrBuilder.append(filedValueModel);
jsonStrBuilder.append("\",");
}
}
jsonStrBuilder.deleteCharAt(jsonStrBuilder.length()-1);
jsonStrBuilder.append("}");
}
return jsonStrBuilder.toString();
}
/**
* 判读是否是基本类型(null, boolean, byte, char, double, float, int, long, short, string)
* @param clazz Class 对象
* @return true: 是基本类型, false:非基本类型
*/
public static boolean isBasicType(Class clazz){
if(clazz == null ||
clazz.isPrimitive() ||
clazz.getName().startsWith("java.lang")
){
return true;
}else{
return false;
}
}
/**
* 判读是否是 JDK 中定义的类(java包下的所有类)
* @param clazz Class 对象
* @return true: 是基本类型, false:非基本类型
*/
public static boolean isSystemType(Class clazz){
if( clazz.isPrimitive() || clazz.getName().contains("java.")){
return true;
}else{
return false;
}
}
}