介绍 public & lt; T>, T registerBean(名称、String Class, clazz,,对象…,args), {
,,BeanDefinitionBuilder BeanDefinitionBuilder =, BeanDefinitionBuilder.genericBeanDefinition (clazz);
,,if (args.length 祝辞,0),{
,,,,for (Object arg : args), {
,,,,,,beanDefinitionBuilder.addConstructorArgValue (arg);
,,,,}
,,}
,,BeanDefinition BeanDefinition =, beanDefinitionBuilder.getRawBeanDefinition ();
,
,,BeanDefinitionRegistry beanFactory =, (BeanDefinitionRegistry), applicationContext.getBeanFactory ();
,,beanFactory.registerBeanDefinition(名称,beanDefinition);
,,return applicationContext.getBean(名字,,clazz);
} import com.github.hui.story.quickstory.server.VisitService;
import lombok.ToString;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.stereotype.Component;
@ component
public class BeanHolder {
private 才能final ConfigurableApplicationContext applicationContext;
public 才能;BeanHolder (ConfigurableApplicationContext applicationContext), {
,,,this.applicationContext =, applicationContext;
,,,init ();
,,}
public 才能;void init (), {
,,,InrSer ser =, registerBean (“test",, InrSer.class);
,,,ser.name =,“一灰“;
,,,ser.uid =, 22;
,,,System.out.println (ser);
,,,InrSer ser2 =, registerBean (“test2",, InrSer.class,,“一灰灰Blog",, 20);
,,,System.out.println (ser2);
,,}
@ToString才能
public 才能static class InrSer {
,,,private String 名称;
,,,private Integer uid;
,,@ autowired
,,,private VisitService visitService;
,,,public InrSer (), {
,,,}
,,,public InrSer(名称、String Integer uid), {
,,,,,this.name =,名称;
,,,,,this.uid =, uid;
,,,}
,,}
private 才能;& lt; T>, T registerBean(名称、String Class, clazz,,对象…,args), {
,,,BeanDefinitionBuilder BeanDefinitionBuilder =, BeanDefinitionBuilder.genericBeanDefinition (clazz);
,,,if (args.length 祝辞,0),{
,,,,,for (Object arg : args), {
,,,,,,,beanDefinitionBuilder.addConstructorArgValue (arg);
,,,,,}
,,,}
,,,BeanDefinition BeanDefinition =, beanDefinitionBuilder.getRawBeanDefinition ();
,,,BeanDefinitionRegistry beanFactory =, (BeanDefinitionRegistry), applicationContext.getBeanFactory ();
,,,beanFactory.registerBeanDefinition(名称,beanDefinition);
,,,return applicationContext.getBean(名字,,clazz);
,,}
}
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<强>我。主动注册Bean支持
借助BeanDefinition来实现Bean的定义,从最终的使用来看,代码比较少,几行而已
测试如下
输出如下
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