{"id":175487,"date":"2024-11-08T06:17:18","date_gmt":"2024-11-07T22:17:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175487\/"},"modified":"2024-11-08T06:17:19","modified_gmt":"2024-11-07T22:17:19","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%absynchronized%e6%8f%90%e9%ab%98%e6%95%b8%e6%93%9a%e4%b8%a6%e7%99%bc%e8%99%95%e7%90%86%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%absynchronized","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175487\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u6578\u64da\u5eabsynchronized\u63d0\u9ad8\u6578\u64da\u4e26\u767c\u8655\u7406\uff1f (\u6578\u64da\u5eabsynchronized)"},"content":{"rendered":"<h1 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id=\"synchronized%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-MXYVPAuxDi\">synchronized\u7684\u5be6\u73fe\u65b9\u5f0f<\/h2>\n<p>\u5728Java\u4e2d\uff0csynchronized\u95dc\u9375\u5b57\u53ef\u4ee5\u7528\u65bc\u65b9\u6cd5\u6216\u4ee3\u78bc\u584a\uff0c\u4ee5\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\u53ea\u6709\u4e00\u500b\u7dda\u7a0b\u53ef\u4ee5\u57f7\u884c\u8a72\u4ee3\u78bc\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>public class DatabaseAccess {\n    private int data;\n\n    public synchronized void updateData(int newData) {\n        this.data = newData;\n    }\n\n    public synchronized int readData() {\n        return this.data;\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cupdateData\u548creadData\u65b9\u6cd5\u90fd\u88ab\u6a19\u8a18\u70basynchronized\uff0c\u9019\u610f\u5473\u8457\u7576\u4e00\u500b\u7dda\u7a0b\u6b63\u5728\u57f7\u884cupdateData\u6642\uff0c\u5176\u4ed6\u7dda\u7a0b\u7121\u6cd5\u540c\u6642\u8a2a\u554f\u9019\u4e9b\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8synchronized%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-MXYVPAuxDi\">\u4f7f\u7528synchronized\u7684\u512a\u7f3a\u9ede<\/h2>\n<h3 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