Before Java 1.7, only this one is permitted: ArrayList<String> a = new ArrayList<String>(); 1. And in 1.7, this is added, which is the same but shorter: (all programmers are lazy) ArrayList<String> a = new ArrayList<>(); 1. 在Java 1.7,只有这一个是允许的: ArrayList<String> a = new ArrayList<String>(); 1. 在1.7,这是...
Set<String> processedBeans = new HashSet<>(); if (beanFactory instanceof BeanDefinitionRegistry) { BeanDefinitionRegistry registry = (BeanDefinitionRegistry) beanFactory; List<BeanFactoryPostProcessor> regularPostProcessors = new ArrayList<>(); List<BeanDefinitionRegistryPostProcessor> registryProcessors ...
public class MyInitializingBean implements InitializingBean { private List<String> data; public List<String> getData() { return data; } @Override public void afterPropertiesSet() { // 在此方法中,我们模拟数据加载 data = new ArrayList<>(); data.add("数据1"); data.add("数据2"); data.add(...
二、策略模式示例代码 public interface CalculationStrategy { /** * 计算服务 */ int calculation(int a, int b); /** * 获取计算类型 * @return */ String getCalculationType(); } @Service public class MultiStrategy implements CalculationStrategy { @Override public int calculation(int a, int b) ...
UserFactoryBean.java importorg.springframework.beans.factory.FactoryBean;publicclassUserFactoryBeanimplementsFactoryBean<User> {@OverridepublicUsergetObject()throwsException {Useruser=newUser(); user.setId(1);returnuser; }@OverridepublicClass<?> getObjectType() {returnUser.class; ...
public class MyInitializingBean implements InitializingBean { private List<String> data; public List<String> getData() { return data; } @Override public void afterPropertiesSet() { // 在此方法中,我们模拟数据加载 data = new ArrayList<>(); data.add("数据1"); data.add("数据2"); data.add(...
[Loaded java.util.ArrayList from C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar] [Loaded java.util.Collections from C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar] [Loaded java.util.Set from C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar] [Loaded java.util.AbstractSet...
this.handlerAdapters = new ArrayList<>(matchingBeans.values()); // We keep HandlerAdapters in sorted order. AnnotationAwareOrderComparator.sort(this.handlerAdapters); } } else { try { HandlerAdapter ha = context.getBean(HANDLER_ADAPTER_BEAN_NAME, HandlerAdapter.class); ...