angular5.x拦截器 给get post请求添加参数user_token

export class Interceptor implements HttpInterceptor {
public myAppListService;
constructor(private message: NzMessageService, private injector: Injector) {
}

public intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
this.myAppListService = this.injector.get(MyAppListService);
this.myAppListService.selectedUserToken = getQueryString('user_token') || sessionStorage.getItem('user_token');
 
if (this.myAppListService.selectedUserToken !== 'null') {
let newParams;
let newBody;
if (req.method === 'GET') {
let userToken = this.myAppListService.selectedUserToken;
if (userToken) {
newParams = req.params.set('user_token', userToken);
const comReq = req.clone({
params: newParams,
body: newBody
});
return next.handle(comReq).do((res) => {
this.handleResponse(res);
});
}
} else if (req.method === 'POST' && req.headers.get('content-type').indexOf('application/x-www-form-urlencoded;') > -1) {
// if (req.body.indexOf('user_token=')) {
let userToken = this.myAppListService.selectedUserToken;
if (userToken) {
if (req.body.match(/(^|&)user_token=([^&]*)(&|$)/)) {
newBody = req.body.replace(req.body.match(/(^|&)user_token=([^&]*)(&|$)/)[0], '');
newBody = newBody + '&user_token=' + userToken;
} else {
newBody = '&user_token=' + userToken;
}
const comReq = req.clone({
params: newParams,
body: newBody
});
return next.handle(comReq).do((res) => {
this.handleResponse(res);
});
}
// }
}

}
const comReq = req.clone();
return next.handle(comReq).do((res) => {
this.handleResponse(res);
});
}
public handleResponse(res) {
if (res instanceof HttpResponse) {
const data = res.body;
if (data.status && data.status === 2) {
this.message.error(data.data);
location.href = '/index.php?r=Login/Ulogin';
}
if (data.status && data.status === 1 && data.data === '应用不存在,或者您不是应用管理者') {
location.href = '/index.php?r=Login/Ulogin';
return;
}
}
}
}

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转载自www.cnblogs.com/aisiqi-love/p/10151284.html