百度文心一言 java 支持流式输出，Springboot+ sse的demo

参考：GitHub - mmciel/wenxin-api-java: 百度文心一言Java库，支持问答和对话，支持流式输出和同步输出。提供SpringBoot调用样例。提供拓展能力。

1、依赖

<dependency>
<groupId>com.baidu.aip</groupId>
<artifactId>java-sdk</artifactId>
<version>4.16.18</version>
</dependency>

2、配置apikey和secretkey

3、主要使用的接口

4、返回的json格式 

3、WenxinEventSourceListener  事件监听器

和其他的接口不一样 需要 CompletionsResponse.data  封装下 ，不然前端页面需要兼容非json的格式

@Slf4j
public class WenxinEventSourceListener extends EventSourceListener {

    private long tokens;

    private SseEmitter sseEmitter;

    public WenxinEventSourceListener(SseEmitter sseEmitter) {
        this.sseEmitter = sseEmitter;
    }

    @Override
    public void onOpen(EventSource eventSource, Response response) {
        log.info("建立sse连接...");
    }

    @SneakyThrows
    @Override
    @JsonIgnoreProperties(ignoreUnknown = true)
    public void onEvent(EventSource eventSource, String id, String type, String data) {
        ChatResponse bean = JSONUtil.parseObj(data).toBean(ChatResponse.class);
        log.info("返回数据：{}", data);
        if (bean.getIs_end()) {
            log.info("返回数据结束了");
            sseEmitter.send(SseEmitter.event()
                    .id("[TOKENS]")
                    .data("<br/><br/>tokens：" + tokens())
                    .reconnectTime(3000));
            sseEmitter.send(SseEmitter.event()
                    .id("[DONE]")
                    .data("[DONE]")
                    .reconnectTime(3000));
            // 传输完成后自动关闭sse
            sseEmitter.complete();
            return;
        }
        log.info("OpenAI返回数据：{}", data);
        tokens += 1;
        if (data.equals("[DONE]")) {
            log.info("OpenAI返回数据结束了");
            sseEmitter.send(SseEmitter.event()
                    .id("[TOKENS]")
                    .data("<br/><br/>tokens：" + tokens())
                    .reconnectTime(3000));
            sseEmitter.send(SseEmitter.event()
                    .id("[DONE]")
                    .data("[DONE]")
                    .reconnectTime(3000));
            // 传输完成后自动关闭sse
            sseEmitter.complete();
            return;
        }

        CompletionsResponse completionResponse = new CompletionsResponse();
        CompletionsResponse.Data dataResult = new CompletionsResponse.Data();
        dataResult.setText(bean.getResult());

        completionResponse.setData(dataResult);
        try {
            sseEmitter.send(SseEmitter.event()
                    .id(bean.getId())
                    .data(completionResponse.getData())
                    .reconnectTime(3000));
        } catch (Exception e) {
            log.error("sse信息推送失败！");
            eventSource.cancel();
            e.printStackTrace();
        }
    }

    @Override
    public void onClosed(EventSource eventSource) {
        log.info("关闭sse连接...");
    }

    @SneakyThrows
    @Override
    public void onFailure(EventSource eventSource, Throwable t, Response response) {
        if(Objects.isNull(response)){
            log.error("sse连接异常:{}", t);
            eventSource.cancel();
            return;
        }
        ResponseBody body = response.body();
        if (Objects.nonNull(body)) {
            // 错误处理 {"error_code":110,"error_msg":"Access token invalid or no longer valid"}，异常：{}
            log.error("sse连接异常data：{}，异常：{}", body.string(), t);
        } else {
            log.error("sse连接异常data：{}，异常：{}"