我将 POST 请求中的表单数据从 Angular 应用程序发送到用 java 编写的 azure 函数。
客户端看起来像这样:
@Injectable({
providedIn: 'root'
})
export class SendItemToAzureFunctionsService {
private functionURI: string;
constructor(private http: HttpClient) {
this.functionURI = 'https://newsfunctions.azurewebsites.net/api/HttpTrigger-Java?code=k6e/VlXltNs7CmJBu7lmBbzaY4tlo21lXaLuvfG/tI7m/XXXX';
}
// {responseType: 'text'}
sendItem(item: Item){
let body = new FormData();
body.append('title', item.title);
body.append('description', item.description);
body.append('link', item.link);
return this.http.post(this.functionURI, body)
.pipe(
map((data: string) => {
return data;
}), catchError( error => {
return throwError( 'Something went wrong!' );
})
)
}
}
当项目接收到 azure 函数时。
功能的目的是通过 firebase 将推送通知中的此项发送到 Android 应用程序。
带有 HTTP 触发器的 Azure 函数如下所示:
@FunctionName("HttpTrigger-Java")
public HttpResponseMessage run(@HttpTrigger(name = "req", methods = { HttpMethod.GET,
HttpMethod.POST }, authLevel = AuthorizationLevel.FUNCTION) HttpRequestMessage<Optional<String>> request,
final ExecutionContext context) {
context.getLogger().info("Java HTTP trigger processed a request.");
// Parse query parameter
String itemDetails = request.getBody().get();
if (itemDetails == null) {
return request.createResponseBuilder(HttpStatus.BAD_REQUEST)
.body("Please pass a name on the query string or in the request body").build();
} else {
// ======
String postUrl = "https://fcm.googleapis.com/fcm/send";
HttpClient httpClient = HttpClientBuilder.create().build();
HttpPost post = new HttpPost(postUrl);
post.setHeader("authorization", FIREBAE_AUTH);
post.setHeader("Content-type", "application/json");
JSONObject contentJson = new JSONObject();
contentJson.put("title", "example title");
contentJson.put("description", "example text");
JSONObject pushNotificationJson = new JSONObject();
pushNotificationJson.put("data", contentJson);
pushNotificationJson.put("to", "/topics/newsUpdateTopic");
try {
StringEntity stringEntity = new StringEntity(pushNotificationJson.toString(), "UTF-8");
post.setEntity(stringEntity);
HttpResponse response = httpClient.execute(post);
System.out.println(response.getEntity().getContent().toString());
} catch (IOException var9) {
var9.printStackTrace();
}
// =========
}
return request.createResponseBuilder(HttpStatus.OK)
.body("succeed to send new item in push notification to clients").build();
}
当我运行时String itemDetails = request.getBody().get();
我得到:
------WebKitFormBoundary2gNlxQx5pqyAeDL3 内容处置:表单数据; ....
我很高兴知道如何从中获取数据项?
最佳答案
如果你想用java解析Azure函数中的from-date
类型数据,你可以尝试使用SDKorg.apache.commons中的
来实现它。例如MultipartStream
。 fileupload
- 代码
public HttpResponseMessage run(
@HttpTrigger(name = "req", methods = {HttpMethod.GET, HttpMethod.POST}, authLevel = AuthorizationLevel.ANONYMOUS) HttpRequestMessage<Optional<String>> request,
final ExecutionContext context) throws IOException {
context.getLogger().info("Java HTTP trigger processed a request.");
String contentType = request.getHeaders().get("content-type");
String body = request.getBody().get(); // Get request body
String boundary = contentType.split(";")[1].split("=")[1]; // Get boundary from content-type header
int bufSize = 1024;
InputStream in = new ByteArrayInputStream(body.getBytes()); // Convert body to an input stream
MultipartStream multipartStream = new MultipartStream(in, boundary.getBytes(), bufSize, null); // Using MultipartStream to parse body input stream
boolean nextPart = multipartStream.skipPreamble();
while (nextPart) {
String header = multipartStream.readHeaders();
int start =header.indexOf("name=") + "name=".length()+1;
int end = header.indexOf("\r\n")-1;
String name = header.substring(start, end);
System.out.println(name);
multipartStream.readBodyData(System.out);
System.out.println("");
nextPart = multipartStream.readBoundary();
}
return request.createResponseBuilder(HttpStatus.OK).body("success").build();
}
关于java - 如何从azure函数java中的POST请求中提取数据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60875665/