从Angular向服务器发送数据时请求正文为空
从Angular向服务器发送数据时请求正文为空
提问于 2018-05-28 03:01:07
我正在尝试从客户端(在Angular中)获取数据到nodejs服务器。
在Angular中，我声明了一个服务。
export class AddTaskService {
constructor(private http: HttpClient) { }
url = 'http://localhost:3000/tasks';
posttasks(task) {
return this.http.post<string>(this.url, JSON.stringify({ task: task }));
}
}在服务器端，我添加了bodyparser并对其进行了配置
index.js
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());router.js
router
.route("/tasks")
.post(function (req, res) {
var taskModel = new taskSchema();
taskModel.task = req.body.task;
console.log(req.body);
taskModel.save(function (err) {
if (err) {
res.send(err);
}
res.json({
message: "nouvProj created!"
});
});
});将postman与x-www-form-urlencoded配合使用可以工作，但在Angular中当II发送数据req.body为空时
编辑:这里是url网络详细信息：通用
Request URL: http://localhost:3000/tasks
Request Method: POST
Status Code: 200 OK
Remote Address: [::1]:3000
Referrer Policy: no-referrer-when-downgrade响应头
Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept
Access-Control-Allow-Methods: GET, POST, PUT ,DELETE
Access-Control-Allow-Origin: *
Connection: keep-alive
Content-Length: 31
Content-Type: application/json; charset=utf-8
Date: Sun, 27 May 2018 19:24:57 GMT
ETag: W/"1f-NlZ/5EsK7Z/S3Ze5LQN4AonQQ90"
X-Powered-By: Express请求头
Accept: application/json, text/plain, */*
Accept-Encoding: gzip, deflate, br
Accept-Language: fr-FR,fr;q=0.9,ar-TN;q=0.8,ar;q=0.7,en-US;q=0.6,en;q=0.5
Cache-Control: no-cache
Connection: keep-alive
Content-Length: 14
Content-Type: text/plain
DNT: 1
Host: localhost:3000
Origin: http://localhost:4200
Pragma: no-cache
Referer: http://localhost:4200/
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36请求负载
{task: "klj"}
task
:
"klj"回答 3
Stack Overflow用户
发布于 2018-05-28 03:31:34
您可以将HTTP标头作为选项进行传递：
const httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/x-www-form-urlencoded',
})
}
return this.http.post<string>(this.url, task, httpOptions);Stack Overflow用户
发布于 2018-10-19 01:44:23
createTask(task) {
const httpOptions= {headers: new HttpHeaders({'Content-Type':'application/json})};
const json = JSON.stringify(task);
this.http.post(this.url, json, this.httpOptions);
}
Stack Overflow用户
发布于 2018-08-09 01:00:50
就像@Joshua建议的那样，但你必须稍微改变一下
const httpOptions = {
headers: new HttpHeaders({
'Content-Type': 'application/x-www-form-urlencoded',
})
}
return this.http.post<string>(this.url, {task, httpOptions});在您的服务器API中，您必须像这样获取数据
const data = req.body.task 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50555535
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