zxk1995的博客

@GetMapping("/upload") public String upload() throws Exception{ // 指定上传路径 String url = "http://xxx:xxx/upload"; // 指定类型为multipart/form-data HttpHeaders headers = new HttpHeaders(); MediaType type = MediaType.pars

@Service public class SchedulerJob { private static final Logger logger = LoggerFactory.getLogger(SchedulerJob.class); private static final int POOL_SIZE = 20; private static final ScheduledExecutorService EXECUTOR = new ScheduledThreadPoolEx

class ThreadLocalTest { private static final Logger logger = LoggerFactory.getLogger(ThreadLocalTest.class); private static final ThreadLocal<DateFormat> format = new ThreadLocal<Da...

import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.concurrent.*; import java.util.concurrent.atomic.AtomicInteger; public class ThreadPoolTest { private static final Logg...

public static void main(String[] args) { // 如:我们需要将byte:10001111 右移2位期望得到的结果:00100011 // 我们知道无符号右移,不论符号位是0还是1,高位统统补0;所以我们可能像下面这样写 byte b = (byte) 0b10001111; System.out.println("原始二进制字符串:" + b...

public class DeadlockTest { Object o1 = new Object(); Object o2 = new Object(); void test01() { synchronized (o1) { try { TimeUnit.SECONDS.sleep(1); } catch (InterruptedException e) {...

// config.properties ResourceBundle bundle = ResourceBundle.getBundle("config"); String fileDir = bundle.getString("file_dir"); System.out.println(fileDir);

private static void compareCreateThread() { //创建一个线程(传统方式) new Thread(new Runnable() { public void run() { System.out.printf("线程[%s]正在运行\n",Thread.currentThread().getName...