JavaScript Web服务器接收请求请求
我正在尝试从Angular应用程序中的服务中获取请求，但是由于未定义，我无法从请求的正文中获取数据。这是我的代码。
Angular
setSessionName(sessionId: number, newSessionName: string): Observable<Session> {
const body = {
sessionId: sessionId,
newName: newSessionName
};
return this.httpClient.put<Session>(`${this.baseUrl}/set-session-name`, body);
}
}
服务器
const express = require('express');
const cors = require('cors');
const serverPort = 8080;
const app = express();
app.use(cors({
origin: ['http://localhost:4200']
}));
app.put('/set-session-name', (httpRequest, httpResponse) => {
console.log(httpRequest.body); // Output: undefined
httpResponse.sendStatus(200);
});
app.listen(serverPort, () => {
console.log(`Server running at http://127.0.0.1:${serverPort}`);
})
I'm trying to get PUT requests from a service in my Angular app, but I can't get the data from the request's body because is undefined. Here is my code.
ANGULAR
setSessionName(sessionId: number, newSessionName: string): Observable<Session> {
const body = {
sessionId: sessionId,
newName: newSessionName
};
return this.httpClient.put<Session>(`${this.baseUrl}/set-session-name`, body);
}
}
SERVER
const express = require('express');
const cors = require('cors');
const serverPort = 8080;
const app = express();
app.use(cors({
origin: ['http://localhost:4200']
}));
app.put('/set-session-name', (httpRequest, httpResponse) => {
console.log(httpRequest.body); // Output: undefined
httpResponse.sendStatus(200);
});
app.listen(serverPort, () => {
console.log(`Server running at http://127.0.0.1:${serverPort}`);
})
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您需要添加
app.use（express.json（））;才能在节点服务器中添加支持JSON编码的身体you need to add
app.use(express.json());in order to add support json encoded bodies in your node-server