Question

Struts 项目报错，Error setting expression 'upgrade.upgradeVersionCode' 怎么解决？

14:01:11,294 ERROR ParametersInterceptor:34 - Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'upgrade.upgradeVersionCode' on 'class action.UpgradeAction: Error setting expression 'upgrade.upgradeVersionCode' with value '[Ljava.lang.String;@3fd4ccb2'
14:01:11,295 ERROR ParametersInterceptor:34 - Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'version' on 'class action.UpgradeAction: Error setting expression 'version' with value ['V1.0.0', ]
14:01:11,342 ERROR Dispatcher:38 - Could not find action or result
/InnovationProj/upgradeAction!updateUpgrade?upgrade.upgradeName=%E7%94%A8%E6%88%B7%E7%89%88APPV1.0.0%E9%85%8D%E7%BD%AE&upgrade.upgradeVersion=V1.0.0&upgrade.upgradeVersionCode=undefined&upgrade.upgradeUrl=http://112.124.59.126:8080/youboxapia/app/download?type=0&version=V1.0.0&upgrade.upgradeSize=4.91&upgrade.upgradeContent=%E7%94%A8%E6%88%B7%E7%89%88APP%20V1.0.0&upgrade.upgradeStatus=0&upgrade.upgradeType=0
No result defined for action action.UpgradeAction and result input
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:373)

upgrade实体类中，upgradeVersionCode为int类型.

Answer 1

&upgrade.upgradeVersionCode=undefined，类型不匹配，传的是字符串，而本身是int