springboot@ConfigurationProperties注解源码解析(含松散绑定)

private Object bindObject(ConfigurationPropertyName name, Bindable target, BindHandler handler, Context context, boolean allowRecursiveBinding) { //

重点

根据名称获取属性值 ConfigurationProperty property = findProperty(name, context); if (property == null && != 0 && containsNoDescendantOf(rces(), name)) { return null; } AggregateBinder aggregateBinder = getAggregateBinder(target, context); if (aggregateBinder != null) { return bindAggregate(name, target, handler, context, aggregateBinder); } if (property != null) { try { return bindProperty(target, context, property); } catch (ConverterNotFoundException ex) { // We might still be able to bind it using the recursive binders Object instance = bindDataObject(name, target, handler, context, allowRecursiveBinding); if (instance != null) { return instance; } throw ex; } } return bindDataObject(name, target, handler, context, allowRecursiveBinding); }anBinder源码/* * Copyright 2012-2020 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * /licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package ;import pector;import tion;import ;import ;import er;import ;import ator;import HashMap;import ;import umer;import on;import er;import ils;import t;import urationPropertyName;import urationPropertySource;import urationPropertyState;import Parameter;import ableType;

import ableType;/** * {@link DataObjectBinder} for mutable Java Beans. * * @author Phillip Webb * @author Madhura Bhave */class JavaBeanBinder implements DataObjectBinder { static final JavaBeanBinder INSTANCE = new JavaBeanBinder(); @Override public T bind(ConfigurationPropertyName name, Bindable target, Context context, DataObjectPropertyBinder propertyBinder) { boolean hasKnownBindableProperties = ue() != null && hasKnownBindableProperties(name, context); Bean bean = (target, hasKnownBindableProperties); if (bean == null) { return null; } BeanSupplier beanSupplier = plier(target); boolean bound = bind(propertyBinder, bean, beanSupplier, context); return (bound ? () : null); } @Override @SuppressWarnings("unchecked") public T create(Bindable target, Context context) { Class type = (Class) e().resolve(); return (type != null) ? tiateClass(type) : null; } private boolean hasKnownBindableProperties(ConfigurationPropertyName name, Context context) { for (ConfigurationPropertySource source : rces()) { if (nsDescendantOf(name) == T) { return true; } } return false; } private boolean bind(DataObjectPropertyBinder propertyBinder, Bean bean, BeanSupplier beanSupplier, Context context) { boolean bound = false; for (BeanProperty beanProperty : perties().values()) { bound |= bind(beanSupplier, propertyBinder, beanProperty); onfigurationProperty(); } return bound; } private boolean bind(BeanSupplier beanSupplier, DataObjectPropertyBinder propertyBinder, BeanProperty property) { String propertyName = e(); ResolvableType type = e(); Supplier