- \n
- 1\u3001wait，notify \u548c notifyAll \u5fc5\u987b\u914d\u5408 Object Monitor \u4e00\u8d77\u4f7f\u7528，\u800c park，unpark \u4e0d\u5fc5\u3002<\/li>\n
- 2\u3001park & unpark \u662f\u4ee5\u7ebf\u7a0b\u4e3a\u5355\u4f4d\u6765\u3010\u963b\u585e\u3011\u548c\u3010\u5524\u9192\u3011\u7ebf\u7a0b，\u800c notify \u53ea\u80fd\u968f\u673a\u5524\u9192\u4e00\u4e2a\u7b49\u5f85\u7ebf\u7a0b，notifyAll\u662f\u5524\u9192\u6240\u6709\u7b49\u5f85\u7ebf\u7a0b，\u4f46\u4e0d\u90a3\u4e48\u3010\u7cbe\u786e\u3011\u3002<\/li>\n
- 3\u3001park & unpark \u53ef\u4ee5\u5148 unpark，\u800c wait & notify \u4e0d\u80fd\u5148 notify\u3002<\/li>\n<\/ul>\n
\u56e0\u4e3a\u5b83\u4eec\u672c\u8eab\u7684\u5b9e\u73b0\u673a\u5236\u4e0d\u4e00\u6837，\u6240\u4ee5\u5b83\u4eec\u4e4b\u95f4\u6ca1\u6709\u4ea4\u96c6，\u4e5f\u5c31\u662f\u8bf4LockSupport\u963b\u585e\u7684\u7ebf\u7a0b，notify\/notifyAll\u6ca1\u6cd5\u5524\u9192\u3002 \u867d\u7136\u4e24\u8005\u7528\u6cd5\u4e0d\u540c，\u4f46\u662f\u6709\u4e00\u70b9， LockSupport \u7684park\u548cObject\u7684wait\u4e00\u6837\u4e5f\u80fd\u54cd\u5e94\u4e2d\u65ad\u3002<\/p>\n
public class LockSupportTest {
\n public static void main(String[] args) throws InterruptedException {
\n Thread t = new Thread(() -> {
\n LockSupport.park();
\n System.out.println("thread:"+Thread.currentThread().getName()+"awake");
\n },"t1");
\n t.start();
\n Thread.sleep(2000);
\n \/\/\u4e2d\u65ad
\n t.interrupt();
\n }
\n} <\/p>\n\u4e8c\u3001LockSupport park & unpark\u539f\u7406<\/h3>\n
\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u4f1a\u5173\u8054\u4e00\u4e2a Parker \u5bf9\u8c61，\u6bcf\u4e2a Parker \u5bf9\u8c61\u90fd\u5404\u81ea\u7ef4\u62a4\u4e86\u4e09\u4e2a\u89d2\u8272：_counter(\u8ba1\u6570\u5668)\u3001\u00a0_mutex(\u4e92\u65a5\u91cf)\u3001_cond(\u6761\u4ef6\u53d8\u91cf)\u3002\u00a0<\/p>\n
2.1\u3001\u60c5\u51b5\u4e00，\u5148\u8c03\u7528park，\u518d\u8c03\u7528unpark<\/h5>\n<\/p>\n
park \u64cd\u4f5c<\/h6>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730125653-688a16953afdb.png\")
<\/p>\n - \u5f53\u524d\u7ebf\u7a0b\u8c03\u7528\u00a0Unsafe.park()\u00a0\u65b9\u6cd5<\/li>\n
- \u68c0\u67e5\u00a0_counter\u00a0，\u672c\u60c5\u51b5\u4e3a 0，\u8fd9\u65f6，\u83b7\u5f97\u00a0_mutex\u00a0\u4e92\u65a5\u9501<\/li>\n
- \u7ebf\u7a0b\u8fdb\u5165\u00a0_cond\u00a0\u6761\u4ef6\u53d8\u91cf\u963b\u585e<\/li>\n
- \n
\u8bbe\u7f6e\u00a0_counter = 0\u00a0<\/p>\n
unpark \u64cd\u4f5c<\/h6>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730125654-688a169617e6d.png\")
<\/li>\n - \n
\u8c03\u7528\u00a0Unsafe.unpark(Thread_0)\u00a0\u65b9\u6cd5，\u8bbe\u7f6e\u00a0_counter\u00a0\u4e3a 1<\/p>\n<\/li>\n
- \u5524\u9192\u00a0_cond\u00a0\u6761\u4ef6\u53d8\u91cf\u4e2d\u7684\u00a0Thread_0<\/li>\n
- Thread_0\u00a0\u6062\u590d\u8fd0\u884c<\/li>\n
- \n
\u8bbe\u7f6e\u00a0_counter\u00a0\u4e3a 0\u00a0<\/p>\n
2.2\u3001\u60c5\u51b5\u4e8c，\u5148\u8c03\u7528unpark，\u518d\u8c03\u7528park<\/h5>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730125654-688a169696d97.png\")
<\/li>\n - \n
\u8c03\u7528\u00a0Unsafe.unpark(Thread_0)\u00a0\u65b9\u6cd5，\u8bbe\u7f6e\u00a0_counter\u00a0\u4e3a 1<\/p>\n<\/li>\n
- \u5f53\u524d\u7ebf\u7a0b\u8c03\u7528\u00a0Unsafe.park()\u00a0\u65b9\u6cd5<\/li>\n
- \u68c0\u67e5\u00a0_counter\u00a0，\u672c\u60c5\u51b5\u4e3a 1，\u8fd9\u65f6\u7ebf\u7a0b\u65e0\u9700\u963b\u585e，\u7ee7\u7eed\u8fd0\u884c<\/li>\n
- \n
\u8bbe\u7f6e\u00a0_counter\u00a0\u4e3a 0\u00a0<\/p>\n
\u4e09\u3001LockSupport Java\u6e90\u7801\u89e3\u6790<\/h3>\n<\/p>\n
3.1 \u53d8\u91cf\u8bf4\u660e<\/h4>\n
public class LockSupport {
\n \/\/ Hotspot implementation via intrinsics API
\n \/\/unsafe\u5e38\u91cf，\u8bbe\u7f6e\u4e3a\u4f7f\u7528Unsafe.compareAndSwapInt\u8fdb\u884c\u66f4\u65b0
\n \/\/UNSAFE\u5b57\u6bb5\u8868\u793asun.misc.Unsafe\u7c7b，\u4e00\u822c\u7a0b\u5e8f\u4e2d\u4e0d\u5141\u8bb8\u76f4\u63a5\u8c03\u7528
\n private static final sun.misc.Unsafe UNSAFE;
\n \/\/\u8868\u793aparkBlocker\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n private static final long parkBlockerOffset;
\n \/\/\u8868\u793athreadLocalRandomSeed\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf，\u6b64\u53d8\u91cf\u7684\u4f5c\u7528\u6682\u65f6\u8fd8\u4e0d\u4e86\u89e3
\n private static final long SEED;
\n \/\/\u8868\u793athreadLocalRandomProbe\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf，\u6b64\u53d8\u91cf\u7684\u4f5c\u7528\u6682\u65f6\u8fd8\u4e0d\u4e86\u89e3
\n private static final long PROBE;
\n \/\/\u8868\u793athreadLocalRandomSecondarySeed\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n \/\/ \u4f5c\u7528\u662f \u53ef\u4ee5\u901a\u8fc7nextSecondarySeed()\u65b9\u6cd5\u6765\u83b7\u53d6\u968f\u673a\u6570
\n private static final long SECONDARY;
\n} <\/p>\n\u53d8\u91cf\u662f\u5982\u4f55\u83b7\u53d6\u5176\u5b9e\u4f8b\u5bf9\u8c61\u7684？<\/h5>\n
public class LockSupport {
\n static {
\n try {
\n \/\/\u5b9e\u4f8b\u5316unsafe\u5bf9\u8c61
\n UNSAFE = sun.misc.Unsafe.getUnsafe();
\n Class<?> tk = Thread.class;
\n \/\/\u5229\u7528unsafe\u5bf9\u8c61\u6765\u83b7\u53d6parkBlocker\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n parkBlockerOffset = UNSAFE.objectFieldOffset(tk.getDeclaredField("parkBlocker"));
\n \/\/\u5229\u7528unsafe\u5bf9\u8c61\u6765\u83b7\u53d6threadLocalRandomSeed\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n SEED = UNSAFE.objectFieldOffset(tk.getDeclaredField("threadLocalRandomSeed"));
\n \/\/\u5229\u7528unsafe\u5bf9\u8c61\u6765\u83b7\u53d6threadLocalRandomProbe\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n PROBE = UNSAFE.objectFieldOffset(tk.getDeclaredField("threadLocalRandomProbe"));
\n \/\/\u5229\u7528unsafe\u5bf9\u8c61\u6765\u83b7\u53d6threadLocalRandomSecondarySeed\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf
\n SECONDARY = UNSAFE.objectFieldOffset(tk.getDeclaredField("threadLocalRandomSecondarySeed"));
\n } catch (Exception ex) { throw new Error(ex); }
\n }
\n} <\/p>\n\u7531\u4e0a\u9762\u4ee3\u7801\u53ef\u77e5\u8fd9\u4e9b\u53d8\u91cf\u662f\u901a\u8fc7static\u4ee3\u7801\u5757\u5728\u7c7b\u52a0\u8f7d\u7684\u65f6\u5019\u5c31\u901a\u8fc7unsafe\u5bf9\u8c61\u83b7\u53d6\u5176\u5728\u5185\u5b58\u5730\u5740\u7684\u504f\u79fb\u91cf\u4e86\u3002\u00a0<\/p>\n
3.2 \u6784\u9020\u65b9\u6cd5<\/h4>\n
public class LockSupport {
\n \/\/LockSupport\u53ea\u6709\u4e00\u4e2a\u79c1\u6709\u6784\u9020\u51fd\u6570，\u65e0\u6cd5\u88ab\u5b9e\u4f8b\u5316\u3002
\n private LockSupport() {} \/\/ Cannot be instantiated.
\n} <\/p>\n3.3 \u4e24\u4e2a\u7279\u6b8a\u7684\u65b9\u6cd5<\/h4>\n
public class LockSupport {
\n \/\/\u8bbe\u7f6e\u7ebf\u7a0bt\u7684parkBlocker\u5b57\u6bb5\u7684\u503c\u4e3aarg
\n private static void setBlocker(Thread t, Object arg) {
\n \/\/ Even though volatile, hotspot doesn't need a write barrier here.
\n \/\/\u5c3d\u7ba1hotspot\u6613\u53d8，\u4f46\u5728\u8fd9\u91cc\u5e76\u4e0d\u9700\u8981\u5199\u5c4f\u969c\u3002
\n UNSAFE.putObject(t, parkBlockerOffset, arg);
\n }
\n \/\/\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684Blocker\u503c
\n public static Object getBlocker(Thread t) {
\n \/\/\u82e5\u5f53\u524d\u7ebf\u7a0b\u4e3a\u7a7a\u5c31\u629b\u51fa\u5f02\u5e38
\n if (t == null)
\n throw new NullPointerException();
\n \/\/\u5229\u7528unsafe\u5bf9\u8c61\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b\u7684Blocker\u503c
\n return UNSAFE.getObjectVolatile(t, parkBlockerOffset);
\n }
\n} <\/p>\n1\u3001unpark(Thread thread)\u65b9\u6cd5<\/h5>\n
public class LockSupport {
\n \/\/\u91ca\u653e\u8be5\u7ebf\u7a0b\u7684\u963b\u585e\u72b6\u6001，\u5373\u7c7b\u4f3c\u91ca\u653e\u9501，\u53ea\u4e0d\u8fc7\u8fd9\u91cc\u662f\u5c06\u8bb8\u53ef\u8bbe\u7f6e\u4e3a1
\n public static void unpark(Thread thread) {
\n \/\/\u5224\u65ad\u7ebf\u7a0b\u662f\u5426\u4e3a\u7a7a
\n if (thread != null)
\n \/\/\u91ca\u653e\u8be5\u7ebf\u7a0b\u8bb8\u53ef
\n UNSAFE.unpark(thread);
\n }
\n} <\/p>\n2\u3001park(Object blocker)\u65b9\u6cd5 \u548c\u00a0park()\u65b9\u6cd5<\/h5>\n
public class LockSupport {
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0b，\u5e76\u4e14\u5c06\u5f53\u524d\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3ablocker
\n public static void park(Object blocker) {
\n \/\/\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b
\n Thread t = Thread.currentThread();
\n \/\/\u5c06\u5f53\u524d\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3ablocker
\n setBlocker(t, blocker);
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0b，\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793aisAbsolute，\u662f\u5426\u4e3a\u7edd\u5bf9\u65f6\u95f4，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u5c31\u662f\u4ee3\u8868\u65f6\u95f4
\n UNSAFE.park(false, 0L);
\n \/\/\u91cd\u65b0\u53ef\u8fd0\u884c\u540e\u518d\u6b64\u8bbe\u7f6eBlocker
\n setBlocker(t, null);
\n }
\n \/\/\u65e0\u9650\u963b\u585e\u7ebf\u7a0b，\u76f4\u5230\u6709\u5176\u4ed6\u7ebf\u7a0b\u8c03\u7528unpark\u65b9\u6cd5
\n public static void park() {
\n UNSAFE.park(false, 0L);
\n }
\n} <\/p>\n\u8bf4\u660e：<\/p>\n<\/li>\n
- \n
- \n
\u8c03\u7528park\u51fd\u6570\u65f6，\u9996\u5148\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b，\u7136\u540e\u8bbe\u7f6e\u5f53\u524d\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5，\u5373\u8c03\u7528setBlocker\u51fd\u6570， \u4e4b\u540e\u8c03\u7528Unsafe\u7c7b\u7684park\u51fd\u6570，\u4e4b\u540e\u518d\u8c03\u7528setBlocker\u51fd\u6570\u3002\u00a0<\/p>\n
park(Object blocker)\u51fd\u6570\u4e2d\u8981\u8c03\u7528\u4e24\u6b21setBlocker\u51fd\u6570<\/h6>\n<\/li>\n
- \n
1\u3001\u8c03\u7528park\u51fd\u6570\u65f6，\u5f53\u524d\u7ebf\u7a0b\u9996\u5148\u8bbe\u7f6e\u597dparkBlocker\u5b57\u6bb5，\u7136\u540e\u518d\u8c03\u7528\u00a0Unsafe\u7684park\u51fd\u6570，\u6b64\u65f6，\u5f53\u524d\u7ebf\u7a0b\u5c31\u5df2\u7ecf\u963b\u585e\u4e86，\u7b49\u5f85\u8be5\u7ebf\u7a0b\u7684unpark\u51fd\u6570\u88ab\u8c03\u7528，\u6240\u4ee5\u540e\u9762\u7684\u4e00\u4e2a\u00a0setBlocker\u51fd\u6570\u65e0\u6cd5\u8fd0\u884c，unpark\u51fd\u6570\u88ab\u8c03\u7528，\u8be5\u7ebf\u7a0b\u83b7\u5f97\u8bb8\u53ef\u540e，\u5c31\u53ef\u4ee5\u7ee7\u7eed\u8fd0\u884c\u4e86，\u4e5f\u5c31\u8fd0\u884c\u7b2c\u4e8c\u4e2a\u00a0setBlocker，\u628a\u8be5\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3anull，\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u6574\u4e2apark\u51fd\u6570\u7684\u903b\u8f91\u3002<\/p>\n<\/li>\n
- 2\u3001\u5982\u679c\u6ca1\u6709\u7b2c\u4e8c\u4e2a\u00a0setBlocker，\u90a3\u4e48\u4e4b\u540e\u6ca1\u6709\u8c03\u7528park(Object blocker)，\u800c\u76f4\u63a5\u8c03\u7528getBlocker\u51fd\u6570，\u5f97\u5230\u7684\u8fd8\u662f\u524d\u4e00\u4e2a\u00a0park(Object blocker)\u8bbe\u7f6e\u7684blocker，\u663e\u7136\u662f\u4e0d\u7b26\u5408\u903b\u8f91\u7684\u3002\u603b\u4e4b，\u5fc5\u987b\u8981\u4fdd\u8bc1\u5728park(Object blocker)\u6574\u4e2a\u51fd\u6570 \u6267\u884c\u5b8c\u540e，\u8be5\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u53c8\u6062\u590d\u4e3anull\u3002<\/li>\n<\/ul>\n
\u6240\u4ee5，park(Object)\u578b\u51fd\u6570\u91cc\u5fc5\u987b\u8981\u8c03\u7528setBlocker\u51fd\u6570\u4e24\u6b21\u3002\u00a0<\/p>\n
3\u3001parkNanos(Object blocker, long nanos)\u65b9\u6cd5 \u548c\u00a0parkNanos(long nanos)\u65b9\u6cd5<\/h5>\n
public class LockSupport {
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0bnanos\u79d2
\n public static void parkNanos(Object blocker, long nanos) {
\n \/\/\u5148\u5224\u65adnanos\u662f\u5426\u5927\u4e8e0，\u5c0f\u4e8e\u7b49\u4e8e0\u90fd\u4ee3\u8868\u65e0\u9650\u7b49\u5f85
\n if (nanos > 0) {
\n \/\/\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b
\n Thread t = Thread.currentThread();
\n \/\/\u5c06\u5f53\u524d\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3ablocker
\n setBlocker(t, blocker);
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\u73b0\u5bf9\u65f6\u95f4\u7684nanos\u79d2
\n UNSAFE.park(false, nanos);
\n \/\/\u5c06\u5f53\u524d\u7ebf\u7a0b\u7684parkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3anull
\n setBlocker(t, null);
\n }
\n }
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0bnanos\u79d2，\u73b0\u5bf9\u65f6\u95f4
\n public static void parkNanos(long nanos) {
\n if (nanos > 0)
\n UNSAFE.park(false, nanos);
\n }
\n} <\/p>\n4\u3001parkUntil(Object blocker, long deadline)\u65b9\u6cd5 \u548c\u00a0parkUntil(long deadline)\u65b9\u6cd5<\/h5>\n
public class LockSupport {
\n \/\/\u5c06\u5f53\u524d\u7ebf\u7a0b\u963b\u585e\u7edd\u5bf9\u65f6\u95f4\u7684deadline\u79d2，\u5e76\u4e14\u5c06\u5f53\u524d\u7ebf\u7a0b\u7684parkBlockerOffset\u8bbe\u7f6e\u4e3ablocker
\n public static void parkUntil(Object blocker, long deadline) {
\n \/\/\u83b7\u53d6\u5f53\u524d\u7ebf\u7a0b
\n Thread t = Thread.currentThread();
\n \/\/\u8bbe\u7f6e\u5f53\u524d\u7ebf\u7a0bparkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3ablocker
\n setBlocker(t, blocker);
\n \/\/\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\u7edd\u5bf9\u65f6\u95f4\u7684deadline\u79d2
\n UNSAFE.park(true, deadline);
\n \/\/\u5f53\u524d\u7ebf\u7a0bparkBlocker\u5b57\u6bb5\u8bbe\u7f6e\u4e3anull
\n setBlocker(t, null);
\n }
\n \/\/\u5c06\u5f53\u524d\u7ebf\u7a0b\u963b\u585e\u7edd\u5bf9\u65f6\u95f4\u7684deadline\u79d2
\n public static void parkUntil(long deadline) {
\n UNSAFE.park(true, deadline);
\n }
\n} <\/p>\n\u603b\u7ed3：<\/h3>\n
LockSupport \u548c CAS \u662fJava\u5e76\u53d1\u5305\u4e2d\u5f88\u591a\u5e76\u53d1\u5de5\u5177\u63a7\u5236\u673a\u5236\u7684\u57fa\u7840，\u5b83\u4eec\u5e95\u5c42\u5176\u5b9e\u90fd\u662f\u4f9d\u8d56Unsafe\u5b9e\u73b0\u3002\u5f88\u591a\u9501\u7684\u7c7b\u90fd\u662f\u57fa\u4e8eLockSupport\u7684park\u548cunpark\u6765\u5b9e\u73b0\u7684，\u6240\u4ee5\u4e86\u89e3LockSupport\u7c7b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<\/p>\n
\u5982\u679c\u5c0f\u5047\u7684\u5185\u5bb9\u5bf9\u4f60\u6709\u5e2e\u52a9，\u8bf7\u70b9\u8d5e<\/span>，\u8bc4\u8bba<\/span>，\u6536\u85cf<\/span>\u3002\u521b\u4f5c\u4e0d\u6613，\u5927\u5bb6\u7684\u652f\u6301\u5c31\u662f\u6211\u575a\u6301\u4e0b\u53bb\u7684\u52a8\u529b！<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730125655-688a16970fa2d.jpg\")
<\/p>\n","protected":false},"excerpt":{"rendered":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1w\u6b21\uff0c\u70b9\u8d5e156\u6b21\uff0c\u6536\u85cf88\u6b21\u3002LockSupport \u548c CAS \u662fJava\u5e76\u53d1\u5305\u4e2d\u5f88\u591a\u5e76\u53d1\u5de5\u5177\u63a7\u5236\u673a\u5236\u7684\u57fa\u7840\uff0c\u5b83\u4eec\u5e95\u5c42\u5176\u5b9e\u90fd\u662f\u4f9d\u8d56Unsafe\u5b9e\u73b0\u3002\u5f88\u591a\u9501\u7684\u7c7b\u90fd\u662f\u57fa\u4e8eLockSupport\u7684park\u548cunpark\u6765\u5b9e\u73b0\u7684\uff0c\u6240\u4ee5\u4e86\u89e3LockSupport\u7c7b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u5c0f\u5047\u7684\u5185\u5bb9\u5bf9\u4f60\u6709\u5e2e\u52a9\uff0c\u8bf7\u8bc4\u8bba\u3002\u521b\u4f5c\u4e0d\u6613\uff0c\u5927\u5bb6\u7684\u652f\u6301\u5c31\u662f\u6211\u575a\u6301\u4e0b\u53bb\u7684\u52a8\u529b\uff01_java park unpark<\/p>\n","protected":false},"author":2,"featured_media":50037,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,4869,190],"topic":[],"class_list":["post-50041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-java-","tag-190"],"yoast_head":"\n
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