快速接入

前提条件

在安装和使用保利威互动学堂Java SDK功能前，确保B端已经具备如下环境：

  • 安装Java环境。

    保利威互动学堂Java SDK支持1.8或更高版本。

  • 注册保利威账号并获取访问密钥信息（UserId 、 AppId 、 AppSecret）。

    image-20200928151641632
    image-20201023101627393

1.添加Maven依赖

  将如下依赖加入到项目的POM文件中：

注意：受 Maven 中央仓库网络限制，阿里云云效 Maven 中央代理仓库可能会出现依赖查找不到的情况，建议使用中央仓库：https://repo1.maven.org/maven2/

<dependency>
  <groupId>net.polyv</groupId>
  <artifactId>polyv-java-vclass-sdk</artifactId>
  <version>2.1.9</version>
</dependency>

注意：为了消除Java的冗长代码 ,SDK使用了jdk1.8的最新特性lombok，请在IntelliJ或者Eclipse 中配置对lombok的支持 

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.10</version>
</dependency>

2.初始化系统

  在执行测试代码之前，需要B端先初始化系统配置，包括UserId \ AppId \ AppSecret , 如没有以上信息，请参考本文前提条件部分获取，初始化示例代码如下，任选一种：

   /**
     * 初始化配置,请配置自己的账号信息
     */
    public static void initPolyvLive(){
        String userId = "xxx";
        String appId = "xxx";
        String appSecret = "xxx";
        VClassGlobalConfig.init(appId, userId, appSecret);
        log.debug("--初始化完成--");
    }
 	/**
     * 初始化配置并初始化 HTTP CLIENT 连接池超时时间和最大连接数配置,请配置自己的账号信息
     */
    public static void initPolyvLive(){
        String userId = "xxx";
        String appId = "xxx";
        String appSecret = "xxx";        
        Integer timeOut = 20000;  //HTTP CLIENT 连接池超时时间
        Integer maxClientNum = 100;  //HTTP CLIENT 最大连接数      
        VClassGlobalConfig.init(  appId,  userId,  appSecret,  timeOut ,  maxClientNum);
        log.debug("--初始化完成--");
    }

  以上代码一般配置于随系统启动执行一次的全局初始化中，如用spring框架，可以参考如下：

package net.polyv.live.config;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import lombok.extern.slf4j.Slf4j;

/**
 * 默认启动配置类
 * @author: thomas
 **/
@Slf4j
@Component
public class StartupListener implements ApplicationContextAware {
    
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        String userId = "xxx";
        String appId = "xxx";
        String appSecret = "xxx"; 
        VClassGlobalConfig.init(appId,userId,appSecret);
        log.debug("--初始化完成--");
    }
    
    
}

3.执行测试代码

  测试创建一个课节，单元测试代码如下：

import java.text.SimpleDateFormat;

import org.junit.Assert;

import com.alibaba.fastjson.JSON;

import lombok.extern.slf4j.Slf4j;
import net.polyv.common.v1.exception.PloyvSdkException;
import net.polyv.vclass.v1.config.VClassGlobalConfig;
import net.polyv.vclass.v1.constant.VClassConstant;
import net.polyv.vclass.v1.entity.lesson.VClassAddLessonRequest;
import net.polyv.vclass.v1.entity.lesson.VClassAddLessonResponse;
import net.polyv.vclass.v1.service.lesson.impl.VClassLessonServiceImpl;

@Slf4j
public class VClassLessonDemo {

  /**
   * 调用demo，必须处理PloyvSdkException。
   * <p>
   * 参数合法性校验：SDK采用自定义验证框架对输入参数进行校验，如有参数不合格，将抛出PloyvSdkException异常，exception的message
   * 包括具体校验不通过的字段信息，此异常是运行时异常，必须捕获处理相关业务逻辑；
   * <p>
   * 解析返回数据：解析返回数据，如SDK调用正常成功，将封装响应对象，正常返回，如服务器返回错误信息，SDK将将抛出PloyvSdkException异常，exception的message
   * 包括具体服务器执行错误信息，此异常是运行时异常，必须捕获处理相关业务逻辑；
   * @param args
   */
  public static void main(String[] args) {
    //全局初始化，此处应该全局执行一次
    String userId = "xxx";
    String appId = "xxx";
    String appSecret = "xxx";
    VClassGlobalConfig.init(appId, userId, appSecret);
    log.debug("--初始化完成--");
    try {
      //封装API请求对象
      VClassAddLessonRequest vClassAddLessonRequest = VClassAddLessonRequest.builder()
              .name("测试创建互动学堂课节")
              .startTime(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse("2022-02-28 16:00:00"))
              .duration(30)
              .linkNumber(5)
              .watchCondition(VClassConstant.AuthType.NULL.getCode())
              .build();
      //调用SDK请求保利威服务器
      VClassAddLessonResponse vClassAddLessonResponse = new VClassLessonServiceImpl().addLesson(
              vClassAddLessonRequest);
      Assert.assertNotNull(vClassAddLessonResponse);
      //正常返回做B端正常的业务逻辑
      if (vClassAddLessonResponse != null) {
        //to do something ......
        log.debug("课节创建成功 {}", JSON.toJSONString(vClassAddLessonResponse));
        log.debug(
                "老师上课地址：https://s.vclass.com/live-web-hi-class/teacher/login?lessonId={}， 老师登录账号：{}， 老师登录密码：{}",
                vClassAddLessonResponse.getLessonId(), vClassAddLessonResponse.getTeacherMobile(),
                vClassAddLessonResponse.getTeacherPasswd());
        log.debug("学生上课地址：https://s.vclass.com/live-web-hi-class/student/login?lessonId={}",
                vClassAddLessonResponse.getLessonId());
      }
    } catch (PloyvSdkException e) {
      //参数校验不合格 或者 请求服务器端500错误，错误信息见PloyvSdkException.getMessage()
      log.error(e.getMessage(), e);
      // 异常返回做B端异常的业务逻辑，记录log 或者 上报到ETL 或者回滚事务
    } catch (Exception e) {
      log.error("SDK调用异常", e);
    }
  }
}

  执行代码后，控制台应有如下关键输出，表示整合完成：

[main] DEBUG net.polyv.common.v1.base.HttpUtil - http 请求 url: https://api.polyv.net/hi-class-api/open/lesson/v1/add?requestId=61b9ac58d3114c2683fd4c5342040c43&appId=frlr1zazn3&sign=3DF2B54E330650B4A75F5E157606EC99&timestamp=1644999444305 , 请求参数: {"appId":"frlr1zazn3","duration":30,"linkNumber":5,"name":"测试创建互动学堂课节","requestId":"61b9ac58d3114c2683fd4c5342040c43","sign":"3DF2B54E330650B4A75F5E157606EC99","startTime":1646035200000,"timestamp":"1644999444305","watchCondition":"NULL"}
[main] DEBUG net.polyv.common.v1.base.HttpUtil - http 请求结果: {"code":200,"status":"success","requestId":"58d56000408d4b9792ac93d1412020a1.91.16449994455159077","data":{"lessonId":15551,"lessonCode":"srs04332","name":"测试创建互动学堂课节","status":0,"startTime":1646035200000,"endTime":1646037000000,"duration":30,"watchCondition":"NULL","secretKey":"wpo5tyus97","cover":"//s1.videocc.net/default-img/small-class/default-cover.png","teacherId":"g73qb9mfz5","teacherName":"张老师","courseCount":0,"webStartUrl":"https://s.vclass.com/live-web-hi-class/teacher/login?lessonId=15551","watchStartUrl":"https://s.vclass.com/live-web-hi-class/student/login?lessonId=15551","aloneWatch":"Y","cataId":0,"teacherCode":"+86","teacherMobile":"12000002368","teacherPasswd":"pV6VW7","linkNumber":5,"autoConnectMicroEnabled":"N","autoRecordCourseEnabled":"N","autoAllVisible":"Y","resolution":0,"playResolution":360},"success":true}
[main] DEBUG cn.timelost.spring.VClassLessonDemo - 课节创建成功 {"autoConnectMicroEnabled":"N","autoRecordCourseEnabled":"N","cover":"//s1.videocc.net/default-img/small-class/default-cover.png","duration":30,"endTime":1646037000000,"lessonId":15551,"linkNumber":5,"name":"测试创建互动学堂课节","playResolution":360,"resolution":0,"secretKey":"wpo5tyus97","startTime":1646035200000,"teacherCode":"+86","teacherId":"g73qb9mfz5","teacherMobile":"12000002368","teacherName":"张老师","teacherPasswd":"pV6VW7","watchCondition":"NULL"}

  还可以官网登录验证创建是否成功；

image-20200928163452748

  至此，B端已经完成保利威互动学堂Java SDK安装配置，可以使用互动学堂SDK进行其他功能开发和测试，如B端接入过程有任何问题，直接使用右下角在线客服找到售后技术支持提问 ，请将问题的运行环境、操作步骤、错误反馈信息、联系方式同步反馈，便于问题的快速定位和解决。

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