SpringBoot+Dubbo+Shiro 导致dubbo无法注入到Realm的问题解决方案

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问题的原因加载顺序引起的。

方案一:用spring-dubbo配置文件的形式, 这个注入应该没问题

主要说方案二:采用dubbo注解@Reference注入, 在实际情况中, 由于shiro和dubbo加载顺序的原因, 会导致使用@Reference的bean注入到Realm中为null, 故在其他地方可以引用 该dubbo bean, 然后转化为spring bean,再用spring上下文调用即可得到转化后的dubbo bean即可。(配置文件的形式会 先把dubbo bean转化为spring bean, 再采用@Autowired注入在加载顺序上不会和dubbo冲突, 故可以成功注入)

方法:

1. 在Controller上引用该dubbo bean

@Reference(version = “1.0.0”)

IAccountService iAccountService;

@Bean(name = “iAccountService”)

public IAccountService getIAccountService(){


return iAccountService;

}

2.添加上下文工具类

@Component

public class SpringBeanFactoryUtils implements ApplicationContextAware {


private static ApplicationContext context = null;

public static <T> T getBean(Class<T> type) {


return context.getBean(type);

}

public static <T> T getBean(String name, Class<T> type) {


return context.getBean(name, type);

}

@Override

public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {


System.err.println(“SpringBeanFactoryUtils be inited…”);

if (SpringBeanFactoryUtils.context == null) {


SpringBeanFactoryUtils.context = applicationContext;

}

}

}

3.在Realm中引用bean

public class MyShiroRealm extends AuthorizingRealm {

@Override

protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

String userName = (String) token.getPrincipal();

IAccountService iAccountService = SpringBeanFactoryUtils.getBean(“iAccountService”,IAccountService.class);

Account account = iAccountService.selectAccountByLogin(userName, null);

if (account == null) {


throw new UnknownAccountException();// 用户名密码不正确

}



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