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问答 JSON流适配数组失败
发布于 2719天前 作者 JimmyZJX 1553 次浏览 复制 上一个帖子 下一个帖子
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使用Json流适配器的单个对象模式没问题,改成适配对象数组(或者List<对象>)都报错:

00:11:35 WARN  FailProcessor:28 - Error@/transaction/create :
java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.util.Map
	at org.nutz.mapl.impl.convert.ObjConvertImpl.injectObj(ObjConvertImpl.java:192)
	at org.nutz.mapl.impl.convert.ObjConvertImpl.inject(ObjConvertImpl.java:81)
	at org.nutz.mapl.impl.convert.ObjConvertImpl.convert(ObjConvertImpl.java:65)
	at org.nutz.mapl.Mapl.maplistToObj(Mapl.java:34)
	at org.nutz.mvc.adaptor.injector.JsonInjector.get(JsonInjector.java:34)
	at org.nutz.mvc.adaptor.AbstractAdaptor.adapt(AbstractAdaptor.java:257)
	at org.nutz.mvc.impl.processor.AdaptorProcessor.process(AdaptorProcessor.java:28)
	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.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.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:198)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)

也顺便贴一下我的代码

	@At("/create")
	@POST
	@AdaptBy(type = JsonAdaptor.class)
	public int create(Transaction transaction, ServletRequest req) {
		transactionService.create(transaction, req);
		return 0;
	}

	@At("/createMulti")
	@POST
	@AdaptBy(type = JsonAdaptor.class)
	public int createMulti(Transaction[] transactions, ServletRequest req) {
		Trans.exec(new Atom() {
			@Override
			public void run() {
				for (Transaction transaction : transactions) {
					transactionService.create(transaction, req);
				}
			}
		});
		return 0;
	}

多谢大神指点!

5 回复

json的内容贴一下

另外,版本号多少

@wendal Json内容

[{eventtime: '2016-08-30', name:'CBus', remark:'Transport', records:[{accountid:3, amount:-4800, categoryid:8}]}]

版本号1.r.58

@jimmyzjx 应该是ServletRequest的问题,换成HttpServletRequest

@wendal 抱歉不是这个问题……是我太困了傻了……一开始用的List不行,然后后来测试数组的URL有typo。抱歉抱歉。ServletRequest和HttpServlet都是可以的。非常感谢

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