摘要： 1. 数据传输：OGNL和类型转换OGNL和struts2OGNL:Object-Graph Navigation Language.OGNL是集成进struts框架中比较强大的技术有助于数据传输和类型转换.OGNL由表达式语言和类型转换器组成.内置类型转换器用ognl表达式映射表单字段名到属性private User user;//get/setUser{ private String username; private String password; private String portfolioName; private Double age; private Date birthd 阅读全文