Question

我在Grails 2.3.5应用程序中设置了Restful Controller。通过PUT将对象发送到我的端点时，对象将不会更新。我的println没有显示更新的数据，但显示原始数据。我不明白为什么。

Restful controller ：

import grails.rest.RestfulController

class PluginSettingController extends RestfulController {
    static responseFormats = ['json', 'xml']

    PluginSettingController() {
        super(PluginSetting)
    }

    @Override
    def update(PluginSetting setting){
        println(setting.name)
        // This prints out the old name: "Old name"
    }

域类：

class PluginSetting {
    String name
    String value

    static constraints = {
        name(nullable:false, blank:false, unique: true)
        value(nullable:false, blank:false)
    }
}

卷曲请求：

curl -i -X PUT -d "{'name':'NEW','value':'my value', 'id':1}" http://localhost:8080/app/pluginSettings/1

旧对象（这是我将GET发送到网址“http://localhost:8080/app/pluginSettings/1”时获得的内容）

{
    "class": "configuration.PluginSetting",
    "id": 1,
    "name": "Old name",
    "value": "my value"
}

Answer 1

这最终对Grails 2.5.4起作用了 - 当使用第二个控制器时，常规方法无法正常工作，这很令人惊讶。

@Transactional(readOnly=false)  // not needed
class EngineController extends RestfulController<PluginSettings> {
    static responseFormats = ['json', 'xml']
    EngineController() {
        super(PluginSettings)
    }
}

class UrlMappings {
    static mappings = {
        "/$controller/$action?/$id?(.$format)?"{
            constraints {
               // apply constraints here
           }
        }

        "/"(view:"/index")
        "500"(view:'/error')
    }
}

#Show
curl -i -X GET -H "Accept: application/json" localhost:8080/app/engine/index
curl -i -X GET -H "Accept: application/json" localhost:8080/app/engine/show/1
#Create
curl -i -X POST -H "Content-Type: application/json" -d '{"name":"Along Came A Spider"}' localhost:8080/app/engine/save
#Update
curl -i -X PUT -H "Content-Type: application/json" -d '{"name":"Along Came A Spider"}' localhost:8080/app/engine/update/1
#Delete
curl -i -X DELETE http://localhost:8080/app/engine/delete/1

但是当我修改urlMappings以包含

时

"/api/engines"(resources:"Engine")

我必须使用

curl -i -X GET -H "Accept: application/json" localhost:8080/app/api/engines/
curl -i -X GET -H "Accept: application/json" localhost:8080/app/api/engines/1
curl -i -X POST -H "Content-Type: application/json" -d '{"name":"Along Came A Spider"}' localhost:8080/app/api/engines/
curl -i -X PUT -H "Content-Type: application/json" -d '{"name":"Along Came A Spider"}' localhost:8080/app/api/engines/1
curl -i -X DELETE http://localhost:8080/app/api/engines/1

Grails Restful Controller UPDATE-Method不从PUT获取更新的数据

1 个答案: