struts2 配置json格式数据（ includeProperties中对list集合的正则配置）

1、listAttachment.*\.realName  和listAttachment.*  效果一样，元素中所有的属性都json化了

 

                   <param name="includeProperties">listAttachment(返回的list名称).*</param>

 

"listAttachment":[{"encodedRealName":"%E8%AE%A1%E5%88%92%E4%BB%BB%E5 %8A%A1%E4%B9%A6%E5%88%97%E8%A1 %A820111223102409.xls","id":"408080b734892f930134896349510003","moduleId":"408080b734892f930134896348570002","moduleName":"inspect","realName":" 计划任务书列表20111223102409.xls","storeName":"13251549125930.xls"}, {"encodedRealName":"%E7%9B%91%E6%8E%A7%E7%82%B9%E6%8A%A5%E5%91%8A%E5%88 %97%E8%A1 %A820111229165330.xls","id":"408080b734892f930134896349710004","moduleId":"408080b734892f930134896348570002","moduleName":"inspect","realName":" 监控点报告列表20111229165330.xls","storeName":"13251549126251.xls"}, {"encodedRealName":"%E9%A1%B9%E7%9B%AE%E5%8F%98%E6%9B%B4%E5%88%97%E8%A1 %A820111228204141.xls","id":"408080b734892f930134896349710005","moduleId":"408080b734892f930134896348570002","moduleName":"inspect","realName":" 项目变更列表20111228204141.xls","storeName":"13251549126252.xls"}, {"encodedRealName":"%E9%AA%8C%E6%94%B6%E8%AE%B0%E5%BD%95%E5%88%97%E8%A1 %A820111228210938.xls","id":"408080b734892f930134896349900006","moduleId":"408080b734892f930134896348570002","moduleName":"inspect","realName":" 验收记录列表20111228210938.xls","storeName":"13251549126403.xls"}, {"encodedRealName":"%E9%AA%8C%E6%94%B6%E7%94%B3%E8%AF%B7%E5%88%97%E8%A1 %A820111228211751.xls","id":"408080b734892f9301348963499f0007","moduleId":"408080b734892f930134896348570002","moduleName":"inspect","realName":" 验收申请列表20111228211751.xls","storeName":"13251549126714.xls"}]

 

 

2、listAttachment\[\d+\]   仅仅是对象，对对象的属性不json化

 

 

 

"listAttachment":[{},{},{},{},{}]

 

 

3、listAttachment\[\d+\]\.realName对指定的对象属性json化

 

 

 

 

"listAttachment":[{"realName":" 计划任务书列表20111223102409.xls"},{"realName":"监控点报告列表20111229165330.xls"}, {"realName":"项目变更列表20111228204141.xls"},{"realName":"验收记录列表 20111228210938.xls"},{"realName":"验收申请列表20111228211751.xls"}]

 

4、listAttachment\.length    集合的length属性不起作用，但json格式数据可以一个数据对象都没有

 

listAttachment":[]

 

 

<param name="includeProperties"> </param> 这个属性表示要包含进JSON数据中的数据。
<param name="excludeProperties"></param> 这个属性表示不要包含进JSON数据中的数据。

<param name="excludeNullProperties">true</param>这个属性表示去除空数据。

<param name="ignoreHierarchy">false</param> ignoreHierarchy 这个属性表示是否忽略等级，也就是继承关系,设置为 false 后会将父类和子类的属性一起返回

 

转载：http://zhouchaofei2010.iteye.com/blog/1329779