说明：  dwr.xml说明文档。配置文件init部分声明那些用于建立远程bean和在方法调用中转换bean的类.这部分是可选择性配置的,多数情况下可以不必使用它,如果你想定义一个新的creator或者converter那么就必须在部分中声明,but do double check on the ones that are currently available first.
(dwr.xml documentation. Configuration file init part of the statement to those used to establish a remote method invocation bean and bean-like in the conversion. This part is optional configuration, in most cases do not have to use it, if you want to define a new creator or converter then must be part of the statement, but do double check on the ones that are currently available first.)