使用过滤器和动作在play框架中获取请求主体。(在java中)

import akka.stream.Materializer;
import play.mvc.EssentialFilter;
import play.mvc.Filter;
import play.mvc.Http;
import play.mvc.Result;

import javax.inject.Inject;
import java.util.concurrent.CompletionStage;
import java.util.function.Function;

public class RequestBodyFilter extends Filter {

    @Inject
    public RequestBodyFilter(Materializer mat) {
        super(mat);
    }

    @Override
    public CompletionStage<Result> apply(Function<Http.RequestHeader, CompletionStage<Result>> next, Http.RequestHeader requestHeader) {
        // 在请求处理之前对请求进行处理
        // 获取请求主体
        Http.RequestBody requestBody = requestHeader.body();
        // 其他处理逻辑
        // ...

        // 继续处理请求
        return next.apply(requestHeader);
    }
}

play.http.filters = "filters.RequestBodyFilter"

import play.mvc.Controller;
import play.mvc.Result;
import play.mvc.With;

public class MyController extends Controller {

    @With(RequestBodyAction.class)
    public Result index() {
        // 在请求处理期间对请求进行处理
        // 获取请求主体
        Http.RequestBody requestBody = request().body();
        // 其他处理逻辑
        // ...

        return ok("Request processed successfully");
    }
}

import play.mvc.Action;
import play.mvc.Http;
import play.mvc.Result;

import java.util.concurrent.CompletionStage;

public class RequestBodyAction extends Action.Simple {

    @Override
    public CompletionStage<Result> call(Http.Context ctx) {
        // 在请求处理期间对请求进行处理
        // 获取请求主体
        Http.RequestBody requestBody = ctx.request().body();
        // 其他处理逻辑
        // ...

        return delegate.call(ctx);
    }
}