前提條件

• 已在代碼運行環(huán)境設(shè)置環(huán)境變量。具體操作，請參見在Linux、macOS和Windows系統(tǒng)配置環(huán)境變量。

• 已創(chuàng)建實驗。具體操作，請參見新建實驗。

添加依賴項

使用Java編寫客戶端代碼時，在Maven工程中使用A/B實驗SDK，必須在pom.xml文件<dependencies>中添加如下依賴，示例如下所示：

• pai-abtest-sdk

  <dependency>
    <groupId>com.aliyun.openservices.aiservice</groupId>
    <artifactId>pai-abtest-sdk</artifactId>
    <version>1.0.0</version>
  </dependency>

• okhttp

  <dependency>
      <groupId>com.squareup.okhttp3</groupId>
      <artifactId>okhttp</artifactId>
      <version>4.12.0</version>
  </dependency>

使用示例

package com.aliyun.openservices.paiabtest;

import com.aliyun.openservices.paiabtest.api.ApiClient;
import com.aliyun.openservices.paiabtest.api.Configuration;
import com.aliyun.openservices.paiabtest.model.ExperimentContext;
import com.aliyun.openservices.paiabtest.model.ExperimentResult;

import java.util.HashMap;
import java.util.Map;

public class ExperimentTest {
    static ExperimentClient experimentClient;

    public static void main(String[] args) throws Exception {
        // set up experiment client
        String regionId = "cn-beijing";
        String accessId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKey = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
        Configuration configuration = new Configuration(regionId, accessId, accessKey);
        ApiClient apiClient = new ApiClient(configuration);
        experimentClient = new ExperimentClient(apiClient);

        // init load experiment data
        experimentClient.init();

        // set up experiment context
        ExperimentContext experimentContext = new ExperimentContext();
        experimentContext.setRequestId("<req_id>");
        // set uid
        experimentContext.setUid("<uid>");
        // set filter params for condition filter match
        Map<String, Object> filterParams = new HashMap<>();
        filterParams.put("sex", "male");
        experimentContext.setFilterParams(filterParams);

        // match experiment
        ExperimentResult experimentResult =  experimentClient.matchExperiment("<DefaultProject>", experimentContext);

        // print experiment info
        System.out.println(experimentResult.info());
        // print exp id
        System.out.println(experimentResult.getExpId());
        // print exp params
        System.out.println(experimentResult.getExperimentParams().get("recall_v", "not exist"));
        System.out.println(experimentResult.getExperimentParams().get("rank_v", "not exist"));
        System.out.println(experimentResult.getExperimentParams().get("male_v", "not exist"));
    }
}

其中：

• regionId：地域ID，例如華東1（杭州）配置為cn-hangzhou。

• <req_id>：自定義配置請求ID。

• <uid>：實驗分流ID標(biāo)識。可以是用戶側(cè)的UserID，也可以是設(shè)備ID等。

• filterParams.put("sex", "male")：其中sex和male為實驗分流參數(shù)，請根據(jù)實際情況進行修改。

• <DefaultProject>：A/B實驗項目名稱。請前往A/B實驗的項目管理 > 實現(xiàn)項目頁面，查看項目名稱。具體操作，請參見新建實驗項目。