动态创办Spring Bean

2012-09-09

动态创建Spring BeanGenericApplicationContext ctx new GenericApplicationContext()BeanDefinitionBu

动态创建Spring Bean
    GenericApplicationContext ctx = new GenericApplicationContext();

    BeanDefinitionBuilder builderA = BeanDefinitionBuilder
       .rootBeanDefinition(BeanA.class)
        .addPropertyValue("name", "Joe");
    ctx.registerBeanDefinition("bean-a", builderA.getBeanDefinition());

    BeanDefinitionBuilder builderB = BeanDefinitionBuilder.rootBeanDefinition(BeanB.class)
       .addPropertyReference("refA", "bean-a");
    ctx.registerBeanDefinition("bean-b", builderB.getBeanDefinition());

    ctx.getBean("bean-b");

上面的例子动态创建了两个 bean 定义，第二个Bean 引用了第一个Bean。