我在angular service的map方法上遇到此错误,但是我返回的数据似乎不包含任何循环引用,这是我的json对象:
[{"id":14,
"sender":
{"id":20,"email":"p.martelliere@gmail.com","username":"test5","roles":
["ROLE_USER"],"status":"active","note":"0","points":0,
"devices":[],"job":"Caisse","showJob":false,"notificationsActivated":true,
"connected":true,"tokenConfirm":"","birthDate":[]
},"receiver":
{"id":12,"email":"test2@yopmail.com","username":"test2","tokenConfirm":"",
"job":"g\u00e9rant","showJob":false,"note":"0","points":0,
"roles":["ROLE_USER"],"status":"active","notificationsActivated":true,
"connected":true,"devices":[]
},
"myNeed":"Te ster",
"whatICanGive":"1",
"messages":[],
"status":"active"
}]
这是我的chatRequest角度实体:
export class NmChatRequest {
// Raw attributes
id : number;
myNeed : string;
whatICanGive : string;
status : string;
createdAt : Date;
updatedAt : Date;
deletedAt : Date;
// x-to-one
id_receiver: number;
constructor(json? : any) {
if (json != null) {
this.id = json.id;
this.myNeed = json.myNeed;
this.whatICanGive = json.whatICanGive;
this.status = json.status;
this.id_receiver = json.id_receiver;
if (json.createdAt != null) {
this.createdAt = new Date(json.createdAt);
}
if (json.updatedAt != null) {
this.updatedAt = new Date(json.updatedAt);
}
if (json.deletedAt != null) {
this.deletedAt = new Date(json.deletedAt);
}
}
}
}
此实体用于从json获取对象。
这是我的ChatRequestService:
/**
* Create the passed nmChatRequest.
*/
add(nmChatRequest : NmChatRequest, token: string) : Observable<NmChatRequest> {
let body = nmChatRequest;
return this.http.post(this.chatUrl, body, {headers: new HttpHeaders({ 'Content-Type': 'application/json', 'X-Auth-Token': token })})
.pipe(
map(response => new NmChatRequest(response)),
catchError(this.handleError)
);
}
我想念什么?
感谢所有愿意花时间阅读/回答此问题的人。
答案 0 :(得分:1)
我从以上提供的片段中建立了一个堆叠闪电战。如果我将json字符串更改为对象而不是数组,对我来说似乎很好。
因此没有括号:
import cherrypy
import os
from django.core.wsgi import get_wsgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")
application = get_wsgi_application()
WEBAPP = "/app-web/"
CONF_WEBAPP = {'/':
{'tools.staticdir.on': True,
'tools.staticdir.dir': WEBAPP,
'tools.staticdir.index': 'index.html'}}
WEB_ROOT = '/webclient/'
class ServeWebApp(object):
@cherrypy.expose
def index(self):
pass
if __name__ == '__main__':
cherrypy.tree.graft(application, '/')
cherrypy.tree.mount(ServeWebApp(), '/webapp', config=CONF_WEBAPP)
cherrypy.config.update({'error_page.404': os.path.join(WEB_ROOT, "index.html")})
cherrypy.server.socket_host = "0.0.0.0"
cherrypy.server.socket_port = 8000
cherrypy.server.thread_pool = 100
cherrypy.engine.start()
cherrypy.engine.block()
如果确实要获取数组而不是单个对象,则可能需要修改代码以传入数组的第一个元素。像这样:
{"id":14,
"sender":
{"id":20,"email":"p.martelliere@gmail.com","username":"test5","roles":
["ROLE_USER"],"status":"active","note":"0","points":0,
"devices":[],"job":"Caisse","showJob":false,"notificationsActivated":true,
"connected":true,"tokenConfirm":"","birthDate":[]
},"receiver":
{"id":12,"email":"test2@yopmail.com","username":"test2","tokenConfirm":"",
"job":"g\u00e9rant","showJob":false,"note":"0","points":0,
"roles":["ROLE_USER"],"status":"active","notificationsActivated":true,
"connected":true,"devices":[]
},
"myNeed":"Te ster",
"whatICanGive":"1",
"messages":[],
"status":"active"
}
这是堆叠闪电战:https://stackblitz.com/edit/angular-wgunjb?file=src%2Fapp%2Fapp.component.ts