{"id":162,"date":"2015-04-10T19:31:18","date_gmt":"2015-04-10T11:31:18","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=162"},"modified":"2026-08-18T12:09:28","modified_gmt":"2026-08-18T04:09:28","slug":"java%e5%a4%9a%e7%ba%bf%e7%a8%8b%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=162","title":{"rendered":"Java\u591a\u7ebf\u7a0b\u673a\u5236"},"content":{"rendered":"
\n

\u7ebf\u7a0b\u662f\u4e00\u4e2a\u7a0b\u5e8f\u5185\u90e8\u7684\u987a\u5e8f\u63a7\u5236\u6d41\uff1a\u4e00\u4e2a\u8fdb\u7a0b\u76f8\u5f53\u4e8e\u4e00\u4e2a\u4efb\u52a1\uff0c\u4e00\u6761\u7ebf\u7a0b\u76f8\u5f53\u4e8e\u8fd9\u4e2a\u4efb\u52a1\u91cc\u7684\u4e00\u6761\u6267\u884c\u8def\u5f84\u3002\u591a\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u540c\u65f6\u8dd1\u591a\u4e2a\u7a0b\u5e8f\uff1b\u591a\u7ebf\u7a0b<\/strong>\u662f\u540c\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u91cc\u6709\u591a\u6761\u987a\u5e8f\u6d41\u540c\u65f6\u6267\u884c\u3002Java \u7684\u7ebf\u7a0b\u901a\u8fc7 java.lang.Thread<\/code> \u5b9e\u73b0\u3002<\/p>\n

<\/p>\n

JVM \u542f\u52a8\u65f6\u4f1a\u6709\u4e00\u4e2a\u7531 public static void main()<\/code> \u5b9a\u4e49\u7684\u7ebf\u7a0b\u3002\u53ef\u4ee5 new Thread \u5b9e\u4f8b\u6765\u521b\u5efa\u65b0\u7ebf\u7a0b\uff1b\u6bcf\u4e2a\u7ebf\u7a0b\u9760\u5bf9\u5e94\u5bf9\u8c61\u7684 run()<\/code> \u5b8c\u6210\u5de5\u4f5c\uff08\u7ebf\u7a0b\u4f53\uff09\uff0c\u8c03\u7528 start()<\/code> \u624d\u4f1a\u771f\u6b63\u542f\u52a8\u3002<\/p>\n\n\n\n\n\n\n
\u65b9\u5f0f<\/th>\n\u600e\u4e48\u505a<\/th>\n\u7279\u70b9<\/th>\n<\/tr>\n<\/thead>\n
\u5b9e\u73b0 Runnable<\/td>\nnew Thread(target)\uff0ctarget \u662f Runnable<\/td>\n\u591a\u4e2a\u7ebf\u7a0b\u53ef\u5171\u4eab\u540c\u4e00\u4efd\u6570\u636e<\/td>\n<\/tr>\n
\u7ee7\u627f Thread<\/td>\n\u5b50\u7c7b\u91cd\u5199 run()\uff0c\u518d new \u5b50\u7c7b\u5bf9\u8c61<\/td>\n\u5360\u7528\u4e86\u552f\u4e00\u7684\u7ee7\u627f\u540d\u989d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e00\u3001\u521b\u5efa\u548c\u542f\u52a8<\/h2>\n

\u7b2c\u4e00\u79cd\uff1a\u5b9a\u4e49\u7c7b\u5b9e\u73b0 Runnable\uff1bRunnable<\/code> \u53ea\u6709\u4e00\u4e2a\u65b9\u6cd5 public void run()<\/code>\uff0c\u7528\u6765\u5199\u7ebf\u7a0b\u4f53\u3002run \u91cc\u53ef\u7528 Thread.currentThread()<\/code> \u62ff\u5230\u5f53\u524d\u7ebf\u7a0b\u5f15\u7528\u3002<\/p>\n

\u7b2c\u4e8c\u79cd\uff1a\u5b9a\u4e49 Thread \u7684\u5b50\u7c7b\u5e76\u91cd\u5199 run\uff1a<\/p>\n

class MyThread extends Thread {\n    public void run() {\n        \/\/ \u7ebf\u7a0b\u4f53\n    }\n}\nMyThread myThread = new MyThread();<\/code><\/pre>\n
\u4e8c\u3001\u7ebf\u7a0b\u63a7\u5236\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n
    \n
  • \n
    isAlive()<\/code>\uff1a\u7ebf\u7a0b\u662f\u5426\u8fd8\u201c\u6d3b\u201d\u7740\u3002<\/section>\n<\/li>\n
  • \n
    getPriority()<\/code> \/ setPriority()<\/code>\uff1a\u8bfb\u5199\u4f18\u5148\u7ea7\u3002<\/section>\n<\/li>\n
  • \n
    Thread.sleep()<\/code>\uff1a\u5f53\u524d\u7ebf\u7a0b\u7761\u7720\u6307\u5b9a\u6beb\u79d2\u3002<\/section>\n<\/li>\n
  • \n
    join()<\/code>\uff1a\u5f53\u524d\u7ebf\u7a0b\u7b49\u5f85\u8be5\u7ebf\u7a0b\u7ed3\u675f\u518d\u7ee7\u7eed\u3002<\/section>\n<\/li>\n
  • \n
    yield()<\/code>\uff1a\u8ba9\u51fa CPU\uff0c\u8fdb\u5165\u5c31\u7eea\u961f\u5217\u7b49\u5f85\u8c03\u5ea6\u3002<\/section>\n<\/li>\n
  • \n
    wait()<\/code>\uff1a\u5f53\u524d\u7ebf\u7a0b\u8fdb\u5165\u5bf9\u8c61\u7684 wait pool\u3002<\/section>\n<\/li>\n
  • \n
    notify()<\/code> \/ notifyAll()<\/code>\uff1a\u5524\u9192 wait pool \u4e2d\u4e00\u4e2a \/ \u5168\u90e8\u7b49\u5f85\u7ebf\u7a0b\u3002<\/section>\n<\/li>\n<\/ul>\n
    \u4e09\u3001\u7ebf\u7a0b\u95f4\u901a\u4fe1\uff1a\u751f\u4ea7\u8005\u6d88\u8d39\u8005<\/h2>\n
    \u7528\u4ea7\u54c1\u76d2\uff08\u5bb9\u91cf 6\uff09\u8bf4\u660e wait \/ notify\uff1a\u6ee1\u4e86\u751f\u4ea7\u8005 wait\uff0c\u7a7a\u4e86\u6d88\u8d39\u8005 wait\uff1b\u5bf9\u65b9\u64cd\u4f5c\u540e notify\u3002push \/ pop \u90fd\u52a0 synchronized<\/code>\uff0c\u6761\u4ef6\u7528 while \u5224\u65ad\uff0c\u907f\u514d\u88ab\u5524\u9192\u540e\u72b6\u6001\u5df2\u7ecf\u53d8\u4e86\u8fd8\u7ee7\u7eed\u5e72\u3002<\/p>\n
    public class ProducerConsumer {\n    public static void main(String[] args) {\n        ProductBox pb = new ProductBox();\n        Thread pThread = new Thread(new Producer(pb));\n        Thread cThread = new Thread(new Consumer(pb));\n        pThread.setPriority(Thread.MAX_PRIORITY);\n        pThread.start();\n        cThread.start();\n    }\n}\n\nclass Product {\n    int id;\n    public Product(int id) { this.id = id; }\n    public String toString() { return \"Product:\" + id; }\n}\n\nclass ProductBox {\n    Product[] productbox = new Product[6];\n    int index = 0;\n\n    public synchronized void push(Product p) {\n        while (index == productbox.length) {\n            try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); }\n        }\n        this.notify();\n        productbox[index] = p;\n        index++;\n    }\n\n    public synchronized Product pop() {\n        while (index == 0) {\n            try { this.wait(); } catch (InterruptedException e) { e.printStackTrace(); }\n        }\n        this.notify();\n        index--;\n        return productbox[index];\n    }\n}\n\nclass Producer implements Runnable {\n    ProductBox productbox;\n    public Producer(ProductBox productbox) { this.productbox = productbox; }\n    public void run() {\n        for (int i = 0; i < 10; i++) {\n            Product p = new Product(i);\n            productbox.push(p);\n            System.out.println(\"produce:\" + p);\n            try { Thread.sleep((int) (Math.random() * 200)); } catch (InterruptedException e) { e.printStackTrace(); }\n        }\n    }\n}\n\nclass Consumer implements Runnable {\n    ProductBox productbox;\n    public Consumer(ProductBox productbox) { this.productbox = productbox; }\n    public void run() {\n        for (int i = 0; i < 10; i++) {\n            Product p = productbox.pop();\n            System.out.println(\"consume:\" + p);\n            try { Thread.sleep((int) (Math.random() * 1000)); } catch (InterruptedException e) { e.printStackTrace(); }\n        }\n    }\n}<\/code><\/pre>\n
    \n
    \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u7ebf\u7a0b\u662f\u8fdb\u7a0b\u91cc\u7684\u4e00\u6761\u6267\u884c\u8def\u5f84\uff0crun \u662f\u7ebf\u7a0b\u4f53\u3001start \u624d\u542f\u52a8\uff1b\u5171\u4eab\u6570\u636e\u7528 Runnable\uff0c\u534f\u4f5c\u9760 synchronized + wait\/notify\uff0c\u6761\u4ef6\u5224\u65ad\u7528 while\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
    \u7ebf\u7a0b\u662f\u4e00\u4e2a\u7a0b\u5e8f\u5185\u90e8\u7684\u987a\u5e8f\u63a7\u5236\u6d41\uff1a\u4e00\u4e2a\u8fdb\u7a0b\u76f8\u5f53\u4e8e\u4e00\u4e2a\u4efb\u52a1\uff0c\u4e00\u6761\u7ebf\u7a0b\u76f8\u5f53\u4e8e\u8fd9\u4e2a\u4efb\u52a1\u91cc\u7684\u4e00\u6761\u6267\u884c\u8def\u5f84\u3002\u591a\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[19],"tags":[178],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/162"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=162"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/162\/revisions"}],"predecessor-version":[{"id":2128,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/162\/revisions\/2128"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}