Playframework 从Play 2.0中调用webservice

在play 2.0应用程序中调用Web服务时遇到问题。下面是我的代码的外观

Future<Object> promise = WS.url("http://myurl").get().map(testFunc1, null);
 Function1 testFunc1 = new Function1(){
    public void $init$() {}
    public Object apply(Object v1) {
        System.out.println("apply");
        return "";
    }
    public Function1 andThen(Function1 g) { return null; }
    public Function1 compose(Function1 g) {return null;}
};

很明显，我似乎遗漏了一些东西。谁能告诉我是什么吗。或者我甚至需要用Function1映射promise对象吗

谢谢

---

Karthik

您的代码看起来像Java，但您使用的是Scala库。 包

play.api

是针对Scala api的

使用

而不是

import play.api.libs.ws.WS;
import scala.Function1;

范例

//checkout https://github.com/schleichardt/stackoverflow-answers/tree/so18491305
package controllers;

import play.libs.F.Function;
import play.libs.F.Promise;
import play.mvc.*;
import play.libs.WS;

public class Application extends Controller {
    /**
     * This action serves as proxy for the Google start page
     */
    public static Result index() {
        //Phase 1 get promise of the webservice request
        final Promise<WS.Response> responsePromise = WS.url("http://google.de").get();
        //phase 2 extract the usable data from the response
        final Promise<String> bodyPromise = responsePromise.map(new Function<WS.Response, String>() {
            @Override
            public String apply(WS.Response response) throws Throwable {
                final int statusCode = response.getStatus();
                return response.getBody();//assumed you checked the response code for 200
            }
        });
        //phase 3 transform the promise into a result/HTTP answer
        return async(
                bodyPromise.map(
                        new Function<String,Result>() {
                            public Result apply(String s) {
                                return ok(s).as("text/html");
                            }
                        }
                )
        );
    }
}

//签出https://github.com/schleichardt/stackoverflow-answers/tree/so18491305
包装控制器；
导入play.libs.F.函数；
导入play.libs.F.Promise；
导入play.mvc.*；
导入play.libs.WS；
公共类应用程序扩展控制器{
/**
*此操作充当Google起始页的代理
*/
公共静态结果索引（）{
//阶段1获得webservice请求的承诺
最终承诺响应Promise=WS.url（“http://google.de）.get（）；
//阶段2从响应中提取可用数据
final Promise bodyPromise=responsePromise.map（新函数（）{
@凌驾
公共字符串apply（WS.Response-Response）抛出可丢弃的{
final int statusCode=response.getStatus（）；
return response.getBody（）；//假设您检查了200的响应代码
}
});
//阶段3：将承诺转换为结果/HTTP答案
异步返回(
bodyPromise.map(
新函数（）{
公共结果应用（字符串s）{
将ok（s.）返回为（“文本/html”）；
}
}
)
);
}
}

import play.libs.WS;
import play.libs.F.Function

import play.api.libs.ws.WS;
import scala.Function1;

//checkout https://github.com/schleichardt/stackoverflow-answers/tree/so18491305
package controllers;

import play.libs.F.Function;
import play.libs.F.Promise;
import play.mvc.*;
import play.libs.WS;

public class Application extends Controller {
    /**
     * This action serves as proxy for the Google start page
     */
    public static Result index() {
        //Phase 1 get promise of the webservice request
        final Promise<WS.Response> responsePromise = WS.url("http://google.de").get();
        //phase 2 extract the usable data from the response
        final Promise<String> bodyPromise = responsePromise.map(new Function<WS.Response, String>() {
            @Override
            public String apply(WS.Response response) throws Throwable {
                final int statusCode = response.getStatus();
                return response.getBody();//assumed you checked the response code for 200
            }
        });
        //phase 3 transform the promise into a result/HTTP answer
        return async(
                bodyPromise.map(
                        new Function<String,Result>() {
                            public Result apply(String s) {
                                return ok(s).as("text/html");
                            }
                        }
                )
        );
    }
}