Grails中自动生成的controller所实现的CRUD， 基本上是index/create/save/update/delete/show等几个方法，其中create，edit等执行后自动跳转到show， 这一跳转的关键是
8.1.5.1 Extending the RestfulController super class
The easiest way to get started doing so is to create a new controller for your resource that extends the grails.rest.RestfulController super class. For example:
class BookController extends RestfulController {
static responseFormats = ['json', 'xml']
BookController() {
super(Book)
}
}
To customize any logic you can just override the appropriate action. The following table provides the names of the action names and the URIs they map to:
HTTP MethodURIController Action
GET/booksindex
GET/books/createcreate
POST/bookssave
GET/books/${id}show
GET/books/${id}/editedit
PUT/books/${id}update
DELETE/books/${id}delete
update中决定跳转方向的代码是
request.withFormat {
form multipartForm {
flash.message = message(code: 'default.updated.message', args: [message(code: 'QuantityUnit.label', default: 'QuantityUnit'), quantityUnitInstance.id])
redirect (controller: "unitManager", action: "show", params: [id: quantityUnitInstance.id])
}
'*'{ redirect quantityUnitInstance, [status: OK] }
}
下划线部分决定跳转的方向
自动生成的是这样的：
redirect systemRoleInstance
为了自己的需要，被改成了上述样子——关键是改变了控制器。