ROP is the Rest Open Platform ,thus like the TOP(Taobao Open Platform:http://api.taobao.com). ROP base the Spring MVC 3.1 platform,make you easy build a rest service application. The rest url of ROP is thus like the following : 1)http://yourhost?method=rop.user.add¶m1=value1¶m=value2... 2)http://yourhost?method=rop.user.update¶m1=value1¶m=value2... ROP can router the request to the dest handler's api.You can use the @ApiMethod("rop.user.add") annotation to mark the api method in the handler. Handler must be a Spring Bean,In other word ,the handler is marked the @Service or @Component and so on. This is a right handler rest service api method: @Service public class SampleRestService { @ApiMethod("rop.sample.method1") public SampleRopResponse1 method1(SampleRopRequest1 request1) { SampleRopResponse1 response = new SampleRopResponse1(); response.setCreateTime("20120101010101"); response.setUserId("1"); return response; } } The parameter's list of the api method must extends the RopRequest,and the Return parameter must implements the RopResponse. The Rop can marshaller the response to the xml or json format output,you can control the output format by "format" parameter. stame by 2012-3-1 Xiamen China