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