package com.22pig.util;<\/p>\n
import java.lang.reflect.Field;
\nimport java.lang.reflect.InvocationTargetException;
\nimport java.lang.reflect.Method;
\nimport java.lang.reflect.Modifier;
\nimport java.lang.reflect.ParameterizedType;
\nimport java.lang.reflect.Type;<\/p>\n
import org.apache.commons.lang3.StringUtils;
\nimport org.apache.commons.lang3.Validate;
\nimport org.slf4j.Logger;
\nimport org.slf4j.LoggerFactory;<\/p>\n
\/**
\n* ClassName: Reflections
\n* @Description: \u53cd\u5c04\u5de5\u5177\u7c7b.\u63d0\u4f9b\u8c03\u7528getter\/setter\u65b9\u6cd5, \u8bbf\u95ee\u79c1\u6709\u53d8\u91cf, \u8c03\u7528\u79c1\u6709\u65b9\u6cd5, \u83b7\u53d6\u6cdb\u578b\u7c7b\u578bClass,\u88abAOP\u8fc7\u7684\u771f\u5b9e\u7c7b\u7b49\u5de5\u5177\u51fd\u6570.
\n* @author
\n* @date 2015\u5e749\u67089\u65e5 \u4e0b\u53481:02:26
\n*\/
\npublic class Reflections {
\nprivate static final String SETTER_PREFIX = “set”;<\/p>\n
private static final String GETTER_PREFIX = “get”;<\/p>\n
private static final String CGLIB_CLASS_SEPARATOR = “$$”;<\/p>\n
private static Logger logger = LoggerFactory.getLogger(Reflections.class);<\/p>\n
\/**
\n* @Description: \u8c03\u7528Getter\u65b9\u6cd5.
\n* @param obj
\n* @param propertyName
\n* @return
\n* @return Object
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:55:46
\n*\/
\npublic static Object invokeGetter(Object obj, String propertyName) {
\nString getterMethodName = GETTER_PREFIX + StringUtils.capitalize(propertyName);
\nreturn invokeMethod(obj, getterMethodName, new Class[] {}, new Object[] {});
\n}<\/p>\n
\/**
\n* @Description: \u8c03\u7528Setter\u65b9\u6cd5, \u4ec5\u5339\u914d\u65b9\u6cd5\u540d\u3002
\n* @param obj
\n* @param propertyName
\n* @param value
\n* @return void
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:55:59
\n*\/
\npublic static void invokeSetter(Object obj, String propertyName, Object value) {
\nString setterMethodName = SETTER_PREFIX + StringUtils.capitalize(propertyName);
\ninvokeMethodByName(obj, setterMethodName, new Object[] { value });
\n}<\/p>\n
\/**
\n* @Description: \u76f4\u63a5\u8bfb\u53d6\u5bf9\u8c61\u5c5e\u6027\u503c, \u65e0\u89c6private\/protected\u4fee\u9970\u7b26, \u4e0d\u7ecf\u8fc7getter\u51fd\u6570.
\n* @param obj
\n* @param fieldName
\n* @return
\n* @return Object
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:56:13
\n*\/
\npublic static Object getFieldValue(final Object obj, final String fieldName) {
\nField field = getAccessibleField(obj, fieldName);<\/p>\n
if (field == null) {
\nthrow new IllegalArgumentException(“Could not find field [” + fieldName + “] on target [” + obj + “]”);
\n}<\/p>\n
Object result = null;
\ntry {
\nresult = field.get(obj);
\n} catch (IllegalAccessException e) {
\nlogger.error(“\u4e0d\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38{}”, e.getMessage());
\n}
\nreturn result;
\n}<\/p>\n
\/**
\n* @Description: \u76f4\u63a5\u8bbe\u7f6e\u5bf9\u8c61\u5c5e\u6027\u503c, \u65e0\u89c6private\/protected\u4fee\u9970\u7b26, \u4e0d\u7ecf\u8fc7setter\u51fd\u6570.
\n* @param obj
\n* @param fieldName
\n* @param value
\n* @return void
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:56:26
\n*\/
\npublic static void setFieldValue(final Object obj, final String fieldName, final Object value) {
\nField field = getAccessibleField(obj, fieldName);<\/p>\n
if (field == null) {
\nthrow new IllegalArgumentException(“Could not find field [” + fieldName + “] on target [” + obj + “]”);
\n}<\/p>\n
try {
\n\/*if(“false”.equals(value) || “true”.equals(value)){
\nBoolean b = new Boolean(value.toString());
\nboolean b1 = b.booleanValue();
\nfield.set(obj, b1);
\n}else{
\nfield.set(obj, value);
\n}*\/
\nfield.set(obj, value);
\n} catch (IllegalAccessException e) {
\nlogger.error(“\u4e0d\u53ef\u80fd\u629b\u51fa\u7684\u5f02\u5e38:{}”, e.getMessage());
\n}
\n}<\/p>\n
\/**
\n* @Description: \u76f4\u63a5\u8c03\u7528\u5bf9\u8c61\u65b9\u6cd5, \u65e0\u89c6private\/protected\u4fee\u9970\u7b26.
\n* \u7528\u4e8e\u4e00\u6b21\u6027\u8c03\u7528\u7684\u60c5\u51b5\uff0c\u5426\u5219\u5e94\u4f7f\u7528getAccessibleMethod()\u51fd\u6570\u83b7\u5f97Method\u540e\u53cd\u590d\u8c03\u7528. \u540c\u65f6\u5339\u914d\u65b9\u6cd5\u540d+\u53c2\u6570\u7c7b\u578b.
\n* @param obj
\n* @param methodName
\n* @param parameterTypes
\n* @param args
\n* @return
\n* @return Object
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:56:33
\n*\/
\npublic static Object invokeMethod(final Object obj, final String methodName, final Class<?>[] parameterTypes,
\nfinal Object[] args) {
\nMethod method = getAccessibleMethod(obj, methodName, parameterTypes);
\nif (method == null) {
\nthrow new IllegalArgumentException(“Could not find method [” + methodName + “] on target [” + obj + “]”);
\n}<\/p>\n
try {
\nreturn method.invoke(obj, args);
\n} catch (Exception e) {
\nthrow convertReflectionExceptionToUnchecked(e);
\n}
\n}<\/p>\n
\/**
\n* @Description: \u76f4\u63a5\u8c03\u7528\u5bf9\u8c61\u65b9\u6cd5, \u65e0\u89c6private\/protected\u4fee\u9970\u7b26\uff0c
\n* \u7528\u4e8e\u4e00\u6b21\u6027\u8c03\u7528\u7684\u60c5\u51b5\uff0c\u5426\u5219\u5e94\u4f7f\u7528getAccessibleMethodByName()\u51fd\u6570\u83b7\u5f97Method\u540e\u53cd\u590d\u8c03\u7528.
\n* \u53ea\u5339\u914d\u51fd\u6570\u540d\uff0c\u5982\u679c\u6709\u591a\u4e2a\u540c\u540d\u51fd\u6570\u8c03\u7528\u7b2c\u4e00\u4e2a.
\n* @param obj
\n* @param methodName
\n* @param args
\n* @return
\n* @return Object
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:56:57
\n*\/
\npublic static Object invokeMethodByName(final Object obj, final String methodName, final Object[] args) {
\nMethod method = getAccessibleMethodByName(obj, methodName);
\nif (method == null) {
\nthrow new IllegalArgumentException(“Could not find method [” + methodName + “] on target [” + obj + “]”);
\n}<\/p>\n
try {
\nreturn method.invoke(obj, args);
\n} catch (Exception e) {
\nthrow convertReflectionExceptionToUnchecked(e);
\n}
\n}<\/p>\n
\/**
\n* @Description: \u5faa\u73af\u5411\u4e0a\u8f6c\u578b, \u83b7\u53d6\u5bf9\u8c61\u7684DeclaredField, \u5e76\u5f3a\u5236\u8bbe\u7f6e\u4e3a\u53ef\u8bbf\u95ee.
\n* \u5982\u5411\u4e0a\u8f6c\u578b\u5230Object\u4ecd\u65e0\u6cd5\u627e\u5230, \u8fd4\u56denull.
\n* @param obj
\n* @param fieldName
\n* @return
\n* @return Field
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:57:39
\n*\/
\npublic static Field getAccessibleField(final Object obj, final String fieldName) {
\nValidate.notNull(obj, “object can’t be null”);
\nValidate.notBlank(fieldName, “fieldName can’t be blank”);
\nfor (Class<?> superClass = obj.getClass(); superClass != Object.class; superClass = superClass
\n.getSuperclass()) {
\ntry {
\nField field = superClass.getDeclaredField(fieldName);
\nmakeAccessible(field);
\nreturn field;
\n} catch (NoSuchFieldException e) {\/\/ NOSONAR
\n\/\/ Field\u4e0d\u5728\u5f53\u524d\u7c7b\u5b9a\u4e49,\u7ee7\u7eed\u5411\u4e0a\u8f6c\u578b
\n}
\n}
\nreturn null;
\n}<\/p>\n
\/**
\n* @Description: \u5faa\u73af\u5411\u4e0a\u8f6c\u578b, \u83b7\u53d6\u5bf9\u8c61\u7684DeclaredMethod,\u5e76\u5f3a\u5236\u8bbe\u7f6e\u4e3a\u53ef\u8bbf\u95ee. \u5982\u5411\u4e0a\u8f6c\u578b\u5230Object\u4ecd\u65e0\u6cd5\u627e\u5230, \u8fd4\u56denull.
\n* \u5339\u914d\u51fd\u6570\u540d+\u53c2\u6570\u7c7b\u578b.
\n* \u7528\u4e8e\u65b9\u6cd5\u9700\u8981\u88ab\u591a\u6b21\u8c03\u7528\u7684\u60c5\u51b5. \u5148\u4f7f\u7528\u672c\u51fd\u6570\u5148\u53d6\u5f97Method,\u7136\u540e\u8c03\u7528Method.invoke(Object obj, Object…args).
\n* @param obj
\n* @param methodName
\n* @param parameterTypes
\n* @return
\n* @return Method
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:57:57
\n*\/
\npublic static Method getAccessibleMethod(final Object obj, final String methodName,
\nfinal Class<?>… parameterTypes) {
\nValidate.notNull(obj, “object can’t be null”);
\nValidate.notBlank(methodName, “methodName can’t be blank”);<\/p>\n
for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType
\n.getSuperclass()) {
\ntry {
\nMethod method = searchType.getDeclaredMethod(methodName, parameterTypes);
\nmakeAccessible(method);
\nreturn method;
\n} catch (NoSuchMethodException e) {
\n\/\/ Method\u4e0d\u5728\u5f53\u524d\u7c7b\u5b9a\u4e49,\u7ee7\u7eed\u5411\u4e0a\u8f6c\u578b
\n}
\n}
\nreturn null;
\n}<\/p>\n
\/**
\n* @Description: \u5faa\u73af\u5411\u4e0a\u8f6c\u578b, \u83b7\u53d6\u5bf9\u8c61\u7684DeclaredMethod,\u5e76\u5f3a\u5236\u8bbe\u7f6e\u4e3a\u53ef\u8bbf\u95ee. \u5982\u5411\u4e0a\u8f6c\u578b\u5230Object\u4ecd\u65e0\u6cd5\u627e\u5230, \u8fd4\u56denull. \u53ea\u5339\u914d\u51fd\u6570\u540d.
\n* \u7528\u4e8e\u65b9\u6cd5\u9700\u8981\u88ab\u591a\u6b21\u8c03\u7528\u7684\u60c5\u51b5. \u5148\u4f7f\u7528\u672c\u51fd\u6570\u5148\u53d6\u5f97Method,\u7136\u540e\u8c03\u7528Method.invoke(Object obj, Object…args)
\n* @param obj
\n* @param methodName
\n* @return
\n* @return Method
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:58:48
\n*\/
\npublic static Method getAccessibleMethodByName(final Object obj, final String methodName) {
\nValidate.notNull(obj, “object can’t be null”);
\nValidate.notBlank(methodName, “methodName can’t be blank”);<\/p>\n
for (Class<?> searchType = obj.getClass(); searchType != Object.class; searchType = searchType
\n.getSuperclass()) {
\nMethod[] methods = searchType.getDeclaredMethods();
\nfor (Method method : methods) {
\nif (method.getName().equals(methodName)) {
\nmakeAccessible(method);
\nreturn method;
\n}
\n}
\n}
\nreturn null;
\n}<\/p>\n
\/**
\n* @Description: \u6539\u53d8private\/protected\u7684\u65b9\u6cd5\u4e3apublic\uff0c\u5c3d\u91cf\u4e0d\u8c03\u7528\u5b9e\u9645\u6539\u52a8\u7684\u8bed\u53e5\uff0c\u907f\u514dJDK\u7684SecurityManager\u62b1\u6028
\n* @param method
\n* @return void
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:59:24
\n*\/
\npublic static void makeAccessible(Method method) {
\nif ((!Modifier.isPublic(method.getModifiers()) || !Modifier.isPublic(method.getDeclaringClass().getModifiers()))
\n&& !method.isAccessible()) {
\nmethod.setAccessible(true);
\n}
\n}<\/p>\n
\/**
\n* @Description: \u6539\u53d8private\/protected\u7684\u6210\u5458\u53d8\u91cf\u4e3apublic\uff0c\u5c3d\u91cf\u4e0d\u8c03\u7528\u5b9e\u9645\u6539\u52a8\u7684\u8bed\u53e5\uff0c\u907f\u514dJDK\u7684SecurityManager\u62b1\u6028
\n* @param field
\n* @return void
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:59:40
\n*\/
\npublic static void makeAccessible(Field field) {
\nif ((!Modifier.isPublic(field.getModifiers()) || !Modifier.isPublic(field.getDeclaringClass().getModifiers())
\n|| Modifier.isFinal(field.getModifiers())) && !field.isAccessible()) {
\nfield.setAccessible(true);
\n}
\n}<\/p>\n
\/**
\n* @Description: \u901a\u8fc7\u53cd\u5c04, \u83b7\u5f97Class\u5b9a\u4e49\u4e2d\u58f0\u660e\u7684\u6cdb\u578b\u53c2\u6570\u7684\u7c7b\u578b, \u6ce8\u610f\u6cdb\u578b\u5fc5\u987b\u5b9a\u4e49\u5728\u7236\u7c7b\u5904 \u5982\u65e0\u6cd5\u627e\u5230, \u8fd4\u56deObject.class. eg.
\n* @param clazz
\n* @return
\n* @return Class<T>
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53487:59:53
\n*\/
\n@SuppressWarnings({ “unchecked”})
\npublic static <T> Class<T> getClassGenricType(final Class clazz) {
\nreturn getClassGenricType(clazz, 0);
\n}<\/p>\n
\/**
\n* @Description: \u901a\u8fc7\u53cd\u5c04, \u83b7\u5f97Class\u5b9a\u4e49\u4e2d\u58f0\u660e\u7684\u7236\u7c7b\u7684\u6cdb\u578b\u53c2\u6570\u7684\u7c7b\u578b. \u5982\u65e0\u6cd5\u627e\u5230, \u8fd4\u56deObject.class.
\n* @param clazz
\n* @param index
\n* @return
\n* @return Class
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53488:00:07
\n*\/
\n@SuppressWarnings({ “unchecked” })
\npublic static Class getClassGenricType(final Class clazz, final int index) {<\/p>\n
Type genType = clazz.getGenericSuperclass();<\/p>\n
if (!(genType instanceof ParameterizedType)) {
\nlogger.warn(clazz.getSimpleName() + “‘s superclass not ParameterizedType”);
\nreturn Object.class;
\n}<\/p>\n
Type[] params = ((ParameterizedType) genType).getActualTypeArguments();<\/p>\n
if ((index >= params.length) || (index < 0)) {
\nlogger.warn(“Index: ” + index + “, Size of ” + clazz.getSimpleName() + “‘s Parameterized Type: ”
\n+ params.length);
\nreturn Object.class;
\n}
\nif (!(params[index] instanceof Class)) {
\nlogger.warn(clazz.getSimpleName() + ” not set the actual class on superclass generic parameter”);
\nreturn Object.class;
\n}<\/p>\n
return (Class) params[index];
\n}<\/p>\n
\/**
\n* @Description: \u901a\u8fc7\u53cd\u5c04\uff0c\u83b7\u5f97\u5f53\u524d\u5bf9\u8c61\u7c7b\u578b
\n* @param instance
\n* @return
\n* @return Class<?>
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53488:00:29
\n*\/
\n@SuppressWarnings({“unchecked” })
\npublic static Class<?> getUserClass(Object instance) {
\nValidate.notNull(instance, “Instance must not be null”);
\nClass clazz = instance.getClass();
\nif ((clazz != null) && clazz.getName().contains(CGLIB_CLASS_SEPARATOR)) {
\nClass<?> superClass = clazz.getSuperclass();
\nif ((superClass != null) && !Object.class.equals(superClass)) {
\nreturn superClass;
\n}
\n}
\nreturn clazz;<\/p>\n
}<\/p>\n
\/**
\n* @Description: \u5c06\u53cd\u5c04\u65f6\u7684checked exception\u8f6c\u6362\u4e3aunchecked exception.
\n* @param e
\n* @return
\n* @return RuntimeException
\n* @throws
\n* @author Stone
\n* @date 2015\u5e749\u670825\u65e5 \u4e0b\u53488:01:08
\n*\/
\npublic static RuntimeException convertReflectionExceptionToUnchecked(Exception e) {
\nif ((e instanceof IllegalAccessException) || (e instanceof IllegalArgumentException)
\n|| (e instanceof NoSuchMethodException)) {
\nreturn new IllegalArgumentException(e);
\n} else if (e instanceof InvocationTargetException) {
\nreturn new RuntimeException(((InvocationTargetException) e).getTargetException());
\n} else if (e instanceof RuntimeException) {
\nreturn (RuntimeException) e;
\n}
\nreturn new RuntimeException(“Unexpected Checked Exception.”, e);
\n}<\/p>\n
\/**
\n* @Description: \u5faa\u73af\u5411\u4e0a\uff0c\u83b7\u53d6\u5bf9\u8c61\u58f0\u660e\u7684\u5b57\u6bb5
\n* @author xiaopeng.ma
\n* @date 2017\/3\/23 17:03
\n*\/
\n\/\/ public static Map<String, String> getAllDeclaredField(T t) {
\n\/\/ Map<String, String> map = new HashMap<String, String>();
\n\/\/ if (t != null) {
\n\/\/ Class<?> clazz = t.getClass();
\n\/\/ for (; Object.class != clazz; clazz.getSuperclass()) {
\n\/\/ Field[] declaredFields = clazz.getDeclaredFields();
\n\/\/ for (Field declaredField : declaredFields) {
\n\/\/ map.put(declaredField.getName(), declaredField.getClass().getSimpleName());
\n\/\/ }
\n\/\/ }
\n\/\/ }
\n\/\/ return map;
\n\/\/ }<\/p>\n
}<\/p>\n","protected":false},"excerpt":{"rendered":"
package com.22pig.util; 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 org.apache.commons.lang3.StringUtils; import org.apache.commons.lang3.Validate; import org.slf4j.Logger; import org.slf4j.LoggerFactory; \/** * ClassName: Reflections * @Description: \u53cd\u5c04\u5de5\u5177\u7c7b.\u63d0\u4f9b\u8c03\u7528getter\/setter\u65b9\u6cd5, \u8bbf\u95ee\u79c1\u6709\u53d8\u91cf, \u8c03\u7528\u79c1\u6709\u65b9\u6cd5, \u83b7\u53d6\u6cdb\u578b\u7c7b\u578bClass,\u88abAOP\u8fc7\u7684\u771f\u5b9e\u7c7b\u7b49\u5de5\u5177\u51fd\u6570. * @author * @date 2015\u5e749\u67089\u65e5 \u4e0b\u53481:02:26 *\/ public class Reflections { private static final String SETTER_PREFIX = “set”; private static final String GETTER_PREFIX … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"http:\/\/22pig.com\/index.php?rest_route=\/wp\/v2\/posts\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/22pig.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/22pig.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/22pig.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/22pig.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=149"}],"version-history":[{"count":0,"href":"http:\/\/22pig.com\/index.php?rest_route=\/wp\/v2\/posts\/149\/revisions"}],"wp:attachment":[{"href":"http:\/\/22pig.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/22pig.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/22pig.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}