后端接收json参数，出现java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to java.util.List

java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to java.util.List
	at org.nutz.mapl.impl.convert.ObjConvertImpl.injectArray(ObjConvertImpl.java:91)
	at org.nutz.mapl.impl.convert.ObjConvertImpl.inject(ObjConvertImpl.java:79)
	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:255)
	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:202)
	at com.cloudmap.csmc.CMNutFilter.doFilter(SourceFile:70)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)

参数类型为json，格式为
{
workList:{
customerId: "10000"
openMode: 1
securityServicePkId: "1"
totalDays: "22"
type: 1
}
}

wendal

1楼•1976天前

方法贴一下

changechenhao

2楼•1976天前

 @At("/add")
    @POST
    @AdaptBy(type = JsonAdaptor.class)
    @Log(isEnabled=false)
    public JSONObject saveWorkList(@Param("workList")SecurityServiceWorkList workList, long[] serviceInstanceIds){
        return operationSecurityServiceWorkListService.insert(workList, serviceInstanceIds);
    }

wendal

3楼•1976天前

SecurityServiceWorkList是怎样的

wendal

4楼•1976天前

后面的serviceInstanceIds是什么鬼

changechenhao

5楼•1976天前

serviceInstanceIds是一个id数组，SecurityServiceWorkList是接收workList的实体类

changechenhao

6楼•1976天前

找到问题了，serviceInstanceIds没加@Param注解。但没搞懂原理，后面的注解不加，会影响到前面的参数的解析吗？