SpringBoot+线程池实现高频调用http接口并多线程解析json数据

场景

Springboot+FastJson实现解析第三方http接口json数据为实体类(时间格式化转换、字段包含中文)：

Springboot+FastJson实现解析第三方http接口json数据为实体类(时间格式化转换、字段包含中文)-CSDN博客

Java中ExecutorService线程池的使用(Runnable和Callable多线程实现)：

Java中ExecutorService线程池的使用(Runnable和Callable多线程实现)_executorservice executorservice = executors.newfix-CSDN博客

Java中创建线程的方式以及线程池创建的方式、推荐使用ThreadPoolExecutor以及示例：

Java中创建线程的方式以及线程池创建的方式、推荐使用ThreadPoolExecutor以及示例_threadpoolexecutor创建线程-CSDN博客

在上面的基础上，需要使用定时任务高频调用典第三方http接口并解析返回的json数据为java的list，需要对

list的每个数据进行处理，这里需要用到自定义线程池对每个java对象分别进行处理。

注：

博客：
霸道流氓气质_C#,架构之路,SpringBoot-CSDN博客

实现

1、首先在配置文件中添加第三方接口的url

这里是yml文件

?
test:
? #测试多线程请求http接口并解析数据
? http-request-executor:
??? url: http://127.0.0.1:4523/m1/2858210-0-default/testFastJson

?

2、新建定时任务类

使用@PostConstruct注解初始化需要的数据，比如获取配置文件中的接口的url以及初始化线程池

??? @PostConstruct
??? public void initData() {
??????? HttpRequestExecutorTestHandler.newFixedThreadPool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() / 2);
??????? url = Objects.requireNonNull(environment.getProperty("test.http-request-executor.url"));
??? }

这里读取配置文件需要引入

??? @Resource
??? private Environment environment;

然后新建定时任务调用接口，并解析接口返回的json数据，将响应的data字段传给

具体处理数据的类

?
??? @Scheduled(fixedRateString = "1000")
??? public void taskGetData() {
??????? String body = "";
??????? try {
??????????? body = HttpRequest
??????????????????? .get("http://127.0.0.1:4523/m1/2858210-0-default/testFastJson")
??????????????????? .timeout(20000)
??????????????????? .execute()
??????????????????? .body();
??????????? UserResDTO userResDTO = JSON.parseObject(body, UserResDTO.class);
??????????? if (userResDTO.getCode() != null && 200!=userResDTO.getCode()) {
??????????????? //错误处理
??????????? }else {
??????????????? JSONArray data = userResDTO.getData();
??????????????? if (StringUtils.isEmpty(data)) {
??????????????????? return;
??????????????? }
??????????????? handler.handleData(data);
??????????? }
??????? } catch (Exception e) {

??????? }
??? }

?

定时任务类完整实例代码

?
import cn.hutool.http.HttpRequest;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.system.domain.test.dto.UserResDTO;
import com.ruoyi.web.handle.HttpRequestExecutorTestHandler;
import org.springframework.core.env.Environment;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import java.util.Objects;
import java.util.concurrent.Executors;

@Component("HttpRequestExecutorTestTask")
@EnableScheduling
public class HttpRequestExecutorTestTask {

??? private String url;

??? @Resource
??? private Environment environment;

??? @Resource
??? private HttpRequestExecutorTestHandler handler;

??? /**
???? * 初始化URL数据
???? */
??? @PostConstruct
??? public void initData() {
??????? HttpRequestExecutorTestHandler.newFixedThreadPool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() / 2);
??????? url = Objects.requireNonNull(environment.getProperty("test.http-request-executor.url"));
??? }

??? @Scheduled(fixedRateString = "1000")
??? public void taskGetData() {
??????? String body = "";
??????? try {
??????????? body = HttpRequest
??????????????????? .get("http://127.0.0.1:4523/m1/2858210-0-default/testFastJson")
??????????????????? .timeout(20000)
??????????????????? .execute()
??????????????????? .body();
??????????? UserResDTO userResDTO = JSON.parseObject(body, UserResDTO.class);
??????????? if (userResDTO.getCode() != null && 200!=userResDTO.getCode()) {
??????????????? //错误处理
??????????? }else {
??????????????? JSONArray data = userResDTO.getData();
??????????????? if (StringUtils.isEmpty(data)) {
??????????????????? return;
??????????????? }
??????????????? handler.handleData(data);
??????????? }
??????? } catch (Exception e) {

??????? }
??? }
}

?

3、上面具体进行业务处理的类

import com.alibaba.fastjson.JSONArray;
import com.ruoyi.system.domain.test.dto.UserDTO;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.concurrent.ExecutorService;

@Component
public class HttpRequestExecutorTestHandler {

??? public static ExecutorService newFixedThreadPool;

??? public void handleData(JSONArray data) {
??????? List<UserDTO> userDTOS = data.toJavaList(UserDTO.class);
??????? for (UserDTO userDTO:userDTOS) {
??????????? newFixedThreadPool.execute(() -> mapperApiData(userDTO));
??????? }
??? }

??? //具体业务处理
??? private void mapperApiData(UserDTO userDTO){
??????? System.out.println(userDTO);
??? }

}

将接收到的data字段解析成java的list,然后遍历list，每个对象用一个线程具体去处理。

附接口示例数据

{
??? "code": "200",
??? "data": [
??????? {
??????????? "id": "63",
??????????? "name": "学指约思但",
??????????? "time_cur": "2009-07-23 02:14:52",
??????????? "地址": "minim sint commodo nisi"
??????? },
??????? {
??????????? "id": "19",
??????????? "name": "下农前清时相",
??????????? "time_cur": "2013-10-16 17:32:09",
??????????? "地址": "ullamco aliqua"
??????? },
??????? {
??????????? "id": "57",
??????????? "name": "米见放层张圆",
??????????? "time_cur": "2015-10-20 18:40:42",
??????????? "地址": "dolor minim et qui"
??????? }
??? ]
}

4、运行效果