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问答 自定义注解 服务类报NullPointerException
发布于 1926天前 作者 JsckChin 1573 次浏览 复制 上一个帖子 下一个帖子
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@IocBean
public class AccessTokenMethodInterceptor implements MethodInterceptor {

@Inject
private UserService userService;

public void filter(final InterceptorChain chain) throws Throwable {
    Object[] args = chain.getArgs();
    NutMap result = null;
    if(args == null || args[0] == null || ! (args[0] instanceof String) ){
        result = NutMap.NEW().addv("code", 1).addv("error", "缺少Token");
    }else{
        String token = (String) chain.getArgs()[0];
        System.out.println("token::" + token);
        if(!userService.checkToken(token)) {
            result = NutMap.NEW().addv("code", 1).addv("error", "Token不存在或已过期");
        }
    }

    if(result != null) {
        chain.setReturnValue(result);
        return;
    }
    chain.doChain();
}

}

2019-08-08 19:43:25,196 org.nutz.ioc.impl.NutIoc.get(NutIoc.java:166) DEBUG - Get 'userApiController'<class com.yunqi.modules.open.api.UserApiController>
token::789c91b58a644b10a87b970a4d495eb7
2019-08-08 19:43:25,197 com.yunqi.common.processor.LogTimeProcessor.process(LogTimeProcessor.java:24) DEBUG - [ GET]URI=/api/user/t 1ms
2019-08-08 19:43:25,197 org.nutz.mvc.impl.processor.FailProcessor.process(FailProcessor.java:28) WARN  - Error@/api/user/t :
java.lang.NullPointerException
	at com.yunqi.modules.open.token.aop.AccessTokenMethodInterceptor.filter(AccessTokenMethodInterceptor.java:27)
	at org.nutz.aop.InterceptorChain.doChain(InterceptorChain.java:60)
	at com.yunqi.modules.open.api.UserApiController$$NUTZAOP.t(UserApiController.java:1)
	at com.yunqi.modules.open.api.UserApiController$FM$t$cb8a6c0afc054ed6574442af6ebe6487.invoke(UserApiController.java)
	at org.nutz.mvc.impl.processor.MethodInvokeProcessor.process(MethodInvokeProcessor.java:31)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:38)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ActionFiltersProcessor.process(ActionFiltersProcessor.java:58)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.integration.shiro.NutShiroProcessor.process(NutShiroProcessor.java:126)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at com.yunqi.common.processor.NutShiroProcessor.process(NutShiroProcessor.java:52)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.ModuleProcessor.process(ModuleProcessor.java:123)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.EncodingProcessor.process(EncodingProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at org.nutz.mvc.impl.processor.UpdateRequestAttributesProcessor.process(UpdateRequestAttributesProcessor.java:15)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at com.yunqi.common.processor.GlobalsSetProcessor.process(GlobalsSetProcessor.java:27)
	at org.nutz.mvc.impl.processor.AbstractProcessor.doNext(AbstractProcessor.java:44)
	at com.yunqi.common.processor.LogTimeProcessor.process(LogTimeProcessor.java:19)
	at org.nutz.mvc.impl.NutActionChain.doChain(NutActionChain.java:44)
	at org.nutz.mvc.impl.ActionInvoker.invoke(ActionInvoker.java:67)
	at org.nutz.mvc.ActionHandler.handle(ActionHandler.java:31)
	at org.nutz.mvc.NutFilter.doFilter(NutFilter.java:202)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
	at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
	at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
	at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
	at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
	at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
	at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
	at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
	at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1613)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1593)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1239)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1562)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1141)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:118)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:564)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:122)
	at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke(ExecutingExecutionStrategy.java:58)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:201)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:133)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
	at java.lang.Thread.run(Thread.java:745)
10 回复

先搞清楚什么变量是null

声明的userService 这个服务类

aop是如何声明的? js吗? 还是@AOP?

已解决
if (userService == null){
System.out.println("userService null");
userService = ioc.get(UserService.class);
}

aop 是 自定义声明方式

自定义声明方式是啥方式

就是自定义注解

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface AccessToken {
}
这种啦啦啦

继承SimpleAopMaker?

是的

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