AutoGenerator 是 MyBatis-Plus 的代码生成器,通过 AutoGenerator 可以快速生成 Entity、Mapper、Mapper XML、Service、Controller 等各个模块的代码,极大的提升了开发效率。 简单来说将你重复的工作封装起来,用的直接直接调用即可生成。 1.添加依赖 MyBatis-Plus 从3.0.3之后移除了代码生成器与模板引擎的默认依赖,需要...
该注解导入了EnableAutoConfigurationImportSelector,其selectImports方法 @OverridepublicString[]selectImports(AnnotationMetadata annotationMetadata){if(!isEnabled(annotationMetadata)){returnNO_IMPORTS;}try{AutoConfigurationMetadata autoConfigurationMetadata=AutoConfigurationMetadataLoader.loadMetadata(this.beanClassLoader);An...
"Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [...
1.使用@Autowried自动注入 1)、默认优先按照类型去容器中找对应的组件:applicationContext.getBean(BookDao.class);找到就赋值 2)、如果找到多个相同类型的组件,再将属性的名称作为组件的id去容器中查找 applicationContext.getBean("bookDao") 3)、@Qualifier("bookDao"):使用@Qualifier指定需要装配的组件的id,而...
System.out.println("Generated UUID: " + uuid); } } 2. 数据库序列或自增ID 利用数据库的序列(如PostgreSQL的SEQUENCE)或自增ID(如MySQL的AUTO_INCREMENT)生成唯一的订单号。数据库序列或自增ID是一种常见的生成唯一标识符的方法,特别是在单体应用或非分布式系统中。
}publicObjectremove(String name){ Map scope = (Map) threadScope.get();returnscope.remove(name); }publicvoidregisterDestructionCallback(String name, Runnable callback){ }publicStringgetConversationId(){// TODO Auto-generated method stubreturnnull; } }...
* */publicclassMyFactoryBeanImplementsimplementsFactoryBean<AirPlane>{/** * 工厂方法,返回创建的对象 * */@OverridepublicAirPlanegetObject()throws Exception{// TODO Auto-generated method stubAirPlane airPlane=newAirPlane();airPlane.setFdj("太行-2");airPlane.setYc("290.2")...
privateint id; private String name; private String sex; private Car car; public Employee() { super(); // TODO Auto-generated constructor stub } public Employee(int id, String name, String sex) { super(); this.id = id; this.name = name; ...
logging.level.org.hibernate.SQL=DEBUGspring.cloud.azure.keyvault.secret.property-sources[0].endpoint=https://<your-keyvault-name>.vault.azure.net/spring.datasource.url=${h2url}spring.jpa.hibernate.ddl-auto=create-dropspring.jpa.database-platform=org.hibernate.dialect.H2...
local seqKey = 'idgenerator_' .. tag .. '_' ..partition;local step =1; localcount;repeatcount= tonumber(redis.call('INCRBY', seqKey, step));untilcount< (1024- step) --counthow many seq are generatedinone millisecondifcount== ...