为什么要使用MVC+REST+CQRS架构

客户端MVC+REST这个架构我很赞同，但是REST连接的应该是服务端预渲染的数据结构，而不是CQRS。
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public class TestController {

    private static DB db = new DB();

    @In
    private RequestBody body;

    @Path("/")
    public Represent index() {
        return new Html("index");
    }

    @Path("/users")
    public Represent get() {
        return Json.create(db.all());
    }

    @Path("post:/users")
    public Represent add(User user) {
        db.add(user);
        return Json.create(new Result(true, "add success"));
    }

    @Path("put:/users/:id")
    public Represent update(int id) {
        db.update(body.json2Object(User.class));
        return Json.create(new Result(true, "update successful"));
    }

    @Path("delete:/users/:id")
    public Represent delete(int id) {
        db.del(id);
        return Json.create(db.all());
    }

    @Path("post:/upload")
    public Represent upload(FormFile formFile) {
        return Json.create(new Result(true, "upload successful"));
    }

}
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get "/" {
 render => index
}

get "/" {
"hello world"
}
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app.get('/api', function (req, res) {
  res.send('Our Sample API is up...');
});