Question

struts2.1.8.1升级struts2.3.15.1后参数传递异常，后台警告没有setter方法，但能正常跳转。升级前正常的

异常代码如下：
[ERROR][2013-08-12 12:05:18] com.opensymphony.xwork2.util.logging.commons.CommonsLogger.error(CommonsLogger.java:38) - Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'SelAgtGrps' on 'class cn.com.sandi.agent.web.AgtgroupAction: Error setting expression 'SelAgtGrps' with value ['null', ]
Error setting expression 'SelAgtGrps' with value ['null', ] - [unknown location]
at com.opensymphony.xwork2.ognl.OgnlValueStack.handleRuntimeException(OgnlValueStack.java:197)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:174)
at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:9。。。

Caused by: No object in the CompoundRoot has a publicly accessible property named 'SelAgtGrps' (no setter could be found). - [unknown location]
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:106)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
。。。
求大神帮忙解决

Answer 1

SelAgtGrps 这个没setter呗。

看看他的类型SelAgtGrps。

前端传的是什么。

追问

解决问题了，因为新版本的struts规定所有属性在后台必须有get和set方法，如果没有就会报这个错。真没办法。