标签库:
非UI标签:
property:输出
set:创建某个变量,并设置变量的范围
bean:创建javabean的实例
param:不能单独使用,一般和bean标签一起使用,表示bean的属性
if elseif else:
iterator:
Object--->String ''
String--->Object %{}
UI标签:
数据校验:
客户端验证:JavaScript
服务器端验证:
服务器端验证:
手动验证: extends ActionSupport
1)校验Action中的与execute方法有相同数字签名的所有方法
重写validate()方法
2)校验Action中的与execute方法有相同数字签名的某个方法
重写validateXxx()方法 Xxx:要校验的方法
基于XML方式验证:(推荐)
1)校验Action中的与execute方法有相同数字签名的所有方法
Action类-validation.xml,与Action类在相同目录下
2)校验Action中的与execute方法有相同数字签名的某个方法
Action类名-action名-validation.xml,与Action类在相同目录下
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