Extjs动态ComboBo加载List数据

[张某人]

2014-4-21 14:18:25 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [platform] in context with path [/sale-web] threw exception [Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [java.util.List]: Specified class is an interface] with root cause
org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [java.util.List]: Specified class is an interface
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:101)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveModelAttribute(HandlerMethodInvoker.java:762)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:356)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:171)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.shinfotech.platform.base.security.web.RemoteLoginFilter.doFilter(RemoteLoginFilter.java:171)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:550)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
2014-04-21 14:18:25 025 org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:132) DEBUG: - Resolving exception from handler [cn.parcelcube.sale.sp.express.web.ExpressController@5ad7b2]: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [java.util.List]: Specified class is an interface



Java代码
@RequestMapping(value = "findList")
@ResponseBody
public ExtResponse<List<SExpress>> findList(HttpSession session,BaseUser currentUser,List<BaseRoleInfo> roles, String expressId){
ArrayList<SExpress> list = new ArrayList<SExpress>();
try{
list = expressService.findList(currentUser, roles, expressId);
return new ExtResponse<List<SExpress>>(true, list);
}catch(Exception e){
e.printStackTrace();
return new ExtResponse<List<SExpress>>(false, list);
}
}
js代码
var comboStore = new Ext.data.JsonStore({
proxy : new Ext.data.HttpProxy({
url : contextPath + '/parcelcube/sp/express/findList'
}),
//baseParams: {expressId: ''},
//idProperty: 'expressId',
reader : new Ext.data.JsonReader({
root : 'data'//后台查询出来的数据
},[
{ name:'sExpress.expressId'},
{ name:'sExpress.expressName'}
]
)
});
var Column3 = new Ext.Panel({
border:false,
layout:'column',
items:[
new Ext.Panel({
layout:'form',
border:false,
labelWidth:60,
labelAlign:'left',
items:[{
xtype:'combo',
columnWidth:1,
name:'sExpress.expressName',
allowBlank : false,
store:comboStore,
fieldLabel: '快递公司',
valueField: 'sExpress.expressId',
displayField: 'sExpress.expressName',
mode: 'remote',
loadingText: '数据加载中...',
triggerAction: 'all',
emptyText:'请选择'
}]
})
]
});

多谢各位大侠指点迷津！！！！！！！！！！