Struts 1和Struts 2之间的区别？

Question

我一直在使用struts 2,但由于一些原因,我正在转移(返回)Struts 1.我想知道它们之间的主要差异,比如程序可用性和一般流程.

Answer 1

让我们看看struts 1.x和struts 2.x之间的组件和功能差异

 In struts 1.x front controller is ActionServlet
    In 2.x front controller is FilterDispatcher

In struts 1.x we have RequestProcessor class
    In 2.x we have Interceptors instead RequestProcessor will see about this concept later just remember as of now

In struts 1.x we have multiple tag libraries like, html, logic, bean..etc
    In 2.x we do not have multiple libraries, instead we have single library which includes all tags

In struts 1.x the configuration fine name can be [any name].xml and we used to place in web-inf folder
    In 2.x the configuration file must be struts.xml only and this must be in classes folder

In struts 1.x we have form beans and Action classes separately
    In 2.x form bean, Action classes are combinedly given as Action class only, of course we can take separately if we want ;)

In struts 1.x properties file must be configured in struts-config.xml
    But in 2.x we need to configure our resource bundle(s) in struts.properties file

In struts 1.x we have programmatic and declarative validations only
    In 2.x we have annotations support too along with programmatic and declarative validations

功能差异

In struts 1.x declarative validations are done by using validation frame work
    In 2.x, declarative validations are done by using xwork2 frame work by webwork the reason being, its support valuations through Annotations

In struts 1.x an Action class is a single ton class, so Action class object is not a thread safe, as a programmer we need to make it as thread safe by applying synchronization
    In 2.x an Action class object will be created for each request, so it is by default thread safe, so we no need to take care about safety issues here

In struts 1.x we have only jsp as a view technology
    In 2.x we have support of multiple view technologies like velocity, Freemarker, jasper reports, jsp bla bla

In struts 1.x Action class is having servlet dependency, because in execute() method accepts req, res parameter right ! so.
    In 2.x Action class doesn’t have any servlet dependency, because its execute() method doesn’t accepts any parameters, however we can access all servlet objects with dependency injection

Answer 2

在 http://www.java-samples.com 中，您可以找到快速而完整的答案。换句话说，如果可以的话，忘记 Struts 并只使用 Struts2 ......

这是上面提到的编程教程站点的比较表：

End-Of-Life Struts 1 版本于 2008 年 12 月推出，版本为 1.3.10。您仍然可以获得它并且仍然可以工作，但是没有支持或进一步的开发。你一个人在那里。