\u00a0 \u00a0 \u00a0 \u00a0 String\u3001StringBUffer\u3001StringBffer\u90fd\u662fjava\u4e2d\u7684\u5904\u7406\u5b57\u7b26\u4e32\u7684\u7c7b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 String\u5185\u90e8\u7684\u5b57\u7b26\u6570\u7ec4\u90fd\u4f1a\u7528 final \u5173\u952e\u5b57\u8fdb\u884c\u4fee\u9970，\u6bcf\u5f53\u5bf9 String \u5bf9\u8c61\u8fdb\u884c\u4fee\u6539\u7684\u65f6\u5019，\u90fd\u4f1a\u5728\u5185\u5b58\u4e2d\u65b0\u5f00\u8f9f\u51fa\u7a7a\u95f4\u521b\u5efa\u51fa\u65b0\u7684\u5bf9\u8c61，\u65e7\u7684 String \u5bf9\u8c61\u5c31\u4f1a\u9891\u7e41\u7684\u88ab JVM \u56de\u6536，\u9891\u7e41\u89e6\u53d1\u5783\u573e\u56de\u6536，\u5bb9\u6613\u5f15\u8d77\u5185\u5b58\u6296\u52a8\u73b0\u8c61\u3002StringBuffer \u548c StringBuilder \u90fd\u5141\u8bb8\u5bf9\u8c61\u88ab\u4fee\u6539，\u5728\u62fc\u63a5\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u8fc7\u7a0b\u4e2d，\u901a\u5e38\u4e0d\u4f1a\u50cf String \u90a3\u6837\u6bcf\u6b21\u4ea7\u751f\u65b0\u5bf9\u8c61，\u53ea\u5728\u6269\u5bb9\u548c\u6700\u7ec8 toString() \u65f6\u521b\u5efa\u65b0\u5bf9\u8c61\u3002\u6240\u4ee5\u5982\u679c\u9700\u8981\u9891\u7e41\u7684\u62fc\u63a5，\u5220\u9664\u5b57\u7b26\u4e32，StringBuffer \u548c StringBuilder \u7684\u6027\u80fd\u8981\u9ad8\u4e8e String ，\u56e0\u4e3a\u524d\u8005\u4e0d\u9700\u8981\u9891\u7e41\u7684\u521b\u5efa\u65b0\u5bf9\u8c61\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 String\u7531\u4e8e\u662f\u4e0d\u53ef\u53d8\u7684，\u6240\u4ee5\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002StringBuffer\u4e2d\u7684\u65b9\u6cd5\u4f7f\u7528 synchronized\u00a0\u5173\u952e\u5b57\u4fee\u9970，\u6240\u4ee5\u4e5f\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u800cStringBuilder\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 String\u9002\u5408\u5728\u4e0d\u9700\u8981\u7ecf\u5e38\u53d8\u6362\u7684\u573a\u666f\u4e2d\u4f7f\u7528，\u4f8b\u5982\u5e38\u91cf\u7684\u58f0\u660e\u3001\u5c11\u91cf\u7684\u53d8\u91cf\u8fd0\u7b97\u3002StringBuffer \u9002\u5408\u8fd0\u884c\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d，\u56e0\u4e3a StringBuffer\u00a0\u00a0\u5728\u65b9\u6cd5\u4e0a\u52a0\u4e86 synchronized\u00a0\u9501\u3002\u4f8b\u5982 XML\u00a0\u89e3\u6790\u3001HTTP\u00a0\u53c2\u6570\u89e3\u6790\u548c\u5c01\u88c5\u3002StringBuilder \u9002\u5408\u7528\u5728\u5355\u7ebf\u7a0b\u7684\u73af\u5883\u4e2d，\u5982SQL\u8bed\u53e5\u7684\u62fc\u88c5\u3001JSON\u5c01\u88c5\u7b49\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u63a5\u53e3\u662f\u4e00\u4e2a\u62bd\u8c61\u7684\u7c7b\u578b，\u5b83\u5b9a\u4e49\u4e86\u9759\u6001\u5e38\u91cf，\u4e0d\u80fd\u5305\u542b\u6210\u5458\u53d8\u91cf\u3002\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u9ed8\u8ba4\u662f\u62bd\u8c61\u7684\u3002\u63a5\u53e3\u4e2d\u53ef\u5305\u542b\u62bd\u8c61\u65b9\u6cd5\u3001\u9ed8\u8ba4\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\u3002\u63a5\u53e3\u7684\u62bd\u8c61\u65b9\u6cd5\u662f\u6ca1\u6709\u5177\u4f53\u7684\u5b9e\u73b0\u7684，\u4f46\u662f\u9ed8\u8ba4\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\u662f\u53ef\u4ee5\u6709\u5177\u4f53\u7684\u5b9e\u73b0\u7684\u3002
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u62bd\u8c61\u7c7b\u662f\u4e00\u4e2a\u7c7b，\u53ef\u4ee5\u5305\u542b\u62bd\u8c61\u65b9\u6cd5\u548c\u5177\u4f53\u65b9\u6cd5，\u53ef\u4ee5\u5305\u542b\u5e38\u91cf\u548c\u53d8\u91cf\u3002\u62bd\u8c61\u7c7b\u4e2d\u7684\u62bd\u8c61\u65b9\u6cd5\u662f\u6ca1\u6709\u5177\u4f53\u5b9e\u73b0\u7684\u65b9\u6cd5，\u800c\u5177\u4f53\u65b9\u6cd5\u662f\u6709\u5177\u4f53\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002\u62bd\u8c61\u7c7b\u4e0d\u80fd\u5b9e\u4f8b\u5316，\u9700\u8981\u901a\u8fc7\u5b50\u7c7b\u7ee7\u627f\u6765\u5b9e\u73b0\u7c7b\u4e2d\u7684\u62bd\u8c61\u65b9\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u63a5\u53e3\u652f\u6301\u591a\u7ee7\u627f，\u4e00\u4e2a\u7c7b\u53ef\u4ee5\u7ee7\u627f\u591a\u4e2a\u63a5\u53e3\u3002\u4f46\u662f\u4e00\u4e2a\u7c7b\u53ea\u80fd\u7ee7\u627f\u4e00\u4e2a\u62bd\u8c61\u7c7b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u63a5\u53e3\u4e0d\u80fd\u5305\u542b\u6784\u9020\u5668，\u56e0\u4e3a\u63a5\u53e3\u4e0d\u80fd\u88ab\u5b9e\u4f8b\u5316，\u53ea\u80fd\u88ab\u7ee7\u627f\u3002\u4e00\u4e2a\u7c7b\u7ee7\u627f\u4e00\u4e2a\u63a5\u53e3，\u5c31\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684\u6240\u6709\u7684\u62bd\u8c61\u65b9\u6cd5\u3002\u62bd\u8c61\u7c7b\u53ef\u4ee5\u5305\u542b\u6784\u9020\u5668，\u7528\u6765\u521d\u59cb\u5316\u5b50\u7c7b\u5b9e\u4f8b，\u4e00\u4e2a\u7c7b\u7ee7\u627f\u4e86\u62bd\u8c61\u7c7b，\u90a3\u5c31\u5fc5\u987b\u5b9e\u73b0\u62bd\u8c61\u7c7b\u4e2d\u7684\u5168\u90e8\u7684\u62bd\u8c61\u65b9\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u9ed8\u8ba4\u662f public astract \u7684，\u63a5\u53e3\u4e2d\u7684\u53d8\u91cf\u9ed8\u8ba4\u662f public static final \u7684\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 java\u4e2d\u7684\u5f02\u5e38\u90fd\u662f\u7ee7\u627f\u81ea Throwable \u7c7b\u3002\u5f02\u5e38\u53c8\u5206\u4e3a RuntimeException \u548c \u5176\u4ed6\u5f02\u5e38\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u8fd0\u884c\u65f6\u5f02\u5e38 RuntimeException \u662f\u7a0b\u5e8f\u8fd0\u884c\u7684\u65f6\u5019\u624d\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38，\u6bd4\u5982\u6570\u7ec4\u8d8a\u754c\u00a0ArrayIndexOutOfBoundsException\u3001\u7a7a\u6307\u9488\u5f02\u5e38\u00a0NullPointException\u3001\u7c7b\u578b\u8f6c\u6362\u9519\u8bef\u00a0ClassCastException\u3001\u96640\u5f02\u5e38\u7b49\u7b49\u3002\u8fd9\u4e9b\u5f02\u5e38\u90fd\u662f\u7531\u4e8e\u7a0b\u5e8f\u7684\u903b\u8f91\u6709\u95ee\u9898，\u662f\u7531\u7a0b\u5e8f\u81ea\u8eab\u7684\u95ee\u9898\u5bfc\u81f4\u7684\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5176\u4ed6\u5f02\u5e38\u5305\u62ec\u9664\u4e86\u8fd0\u884c\u65f6\u5f02\u5e38\u4e4b\u5916\u7684\u5f02\u5e38，\u901a\u5e38\u4e5f\u88ab\u53eb\u505a\u7f16\u8bd1\u65f6\u5f02\u5e38\u3002\u901a\u5e38\u662f\u56e0\u4e3a\u5916\u90e8\u73af\u5883\u5bfc\u81f4\u7684，\u6bd4\u5982\u6253\u5f00\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u6587\u4ef6\u3002\u7f16\u8bd1\u5668\u8981\u6c42 java \u7a0b\u5e8f\u5fc5\u987b\u6355\u83b7\u6216\u58f0\u660e\u6240\u6709\u7684\u7f16\u8bd1\u65f6\u5f02\u5e38，\u5f3a\u5236\u4e3a\u53ef\u80fd\u51fa\u73b0\u7684\u5f02\u5e38\u505a\u4fdd\u969c\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 java \u9762\u5411\u5bf9\u8c61\u7684\u4e09\u5927\u7279\u5f81\u5206\u522b\u662f\u5c01\u88c5\u3001\u7ee7\u627f\u548c\u591a\u6001\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5c01\u88c5\u662f\u628a\u4e00\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u884c\u4e3a\u5c01\u88c5\u5230\u4e00\u8d77，\u5bf9\u5916\u53ea\u66b4\u6f0f\u4e00\u4e9b\u53ef\u7528\u7684\u63a5\u53e3\u3002\u901a\u5e38\u7528\u00a0 public\u3001protected \u548c private \u8fdb\u884c\u4fee\u9970\u5b9a\u4e49\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u7ee7\u627f\u662f\u6307\u4e00\u4e2a\u5b50\u7c7b\u53ef\u4ee5\u7ee7\u627f\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u673a\u5236\u3002\u5b50\u7c7b\u53ef\u4ee5\u6dfb\u52a0\u65b0\u7684\u5c5e\u6027\u548c\u65b9\u6cd5，\u4e5f\u53ef\u4ee5\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\u3002\u63d0\u9ad8\u4e86\u53ef\u91cd\u7528\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002java \u53ea\u652f\u6301\u5355\u7ee7\u627f，\u4e00\u4e2a\u5b50\u7c7b\u53ea\u80fd\u7ee7\u627f\u4e00\u4e2a\u7236\u7c7b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u591a\u6001\u6709\u4e24\u79cd\u5f62\u5f0f，\u9759\u6001\u591a\u6001（\u7f16\u8bd1\u65f6\u591a\u6001）\u548c\u52a8\u6001\u591a\u6001（\u8fd0\u884c\u65f6\u591a\u6001），\u7f16\u8bd1\u65f6\u591a\u6001\u4e3b\u8981\u901a\u8fc7\u91cd\u8f7d\u6765\u5b9e\u73b0\u3002\u8fd0\u884c\u65f6\u591a\u6001\u662f\u7236\u7c7b\u6307\u9488\u6307\u5411\u5b50\u7c7b\u5bf9\u8c61，\u8fd0\u884c\u65f6\u8c03\u7528\u8fd9\u4e2a\u5f15\u7528\u53d8\u91cf\u7684\u65b9\u6cd5\u7684\u65f6\u5019，\u65b9\u6cd5\u7684\u884c\u4e3a\u8868\u73b0\u51fa\u5b50\u7c7b\u65b9\u6cd5\u7684\u7279\u5f81，\u5c31\u8fd9\u4f1a\u51fa\u73b0\u76f8\u540c\u7c7b\u578b\u7684\u53d8\u91cf\u8c03\u7528\u540c\u4e00\u4e2a\u65b9\u6cd5\u7684\u65f6\u5019，\u4f1a\u4ea7\u751f\u4e0d\u540c\u7684\u6548\u679c，\u901a\u5e38\u901a\u8fc7\u91cd\u5199\u6765\u5b9e\u73b0\u3002<\/p>\n
\/\/ \u7236\u7c7b
\nclass Animal {
\n void speak() {
\n System.out.println("\u52a8\u7269\u53d1\u51fa\u58f0\u97f3");
\n }
\n}<\/p>\n
\/\/ \u5b50\u7c7b
\nclass Dog extends Animal {
\n @Override
\n void speak() {
\n System.out.println("\u6c6a\u6c6a\u6c6a");
\n }
\n}<\/p>\n
class Cat extends Animal {
\n @Override
\n void speak() {
\n System.out.println("\u55b5\u55b5\u55b5");
\n }
\n}<\/p>\n
Animal a1 = new Dog(); \/\/ \u7236\u7c7b\u5f15\u7528 \u2192 \u5b50\u7c7b\u5bf9\u8c61
\nAnimal a2 = new Cat();<\/p>\n
a1.speak(); \/\/ \u8f93\u51fa：\u6c6a\u6c6a\u6c6a \u2190 \u8868\u73b0\u7684\u662f Dog \u7684\u884c\u4e3a
\na2.speak(); \/\/ \u8f93\u51fa：\u55b5\u55b5\u55b5 \u2190 \u8868\u73b0\u7684\u662f Cat \u7684\u884c\u4e3a<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u65b9\u6cd5\u7684\u91cd\u8f7d\u662f\u7f16\u8bd1\u65f6\u591a\u6001，\u662f\u6307\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d，\u53ef\u4ee5\u6709\u591a\u4e2a\u65b9\u6cd5\u5177\u6709\u76f8\u540c\u7684\u540d\u79f0，\u4f46\u662f\u4ed6\u4eec\u7684\u53c2\u6570\u5217\u8868\u4e92\u4e0d\u76f8\u540c\u3002\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u8fd4\u56de\u503c\u7c7b\u578b，\u4f46\u662f\u53ea\u6709\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u540c\u7684\u4e24\u4e2a\u65b9\u6cd5\u4e0d\u6784\u6210\u91cd\u8f7d\u3002\u7f16\u8bd1\u5668\u5728\u7f16\u8bd1\u65f6\u6839\u636e\u53c2\u6570\u7684\u7c7b\u578b\u51b3\u5b9a\u8c03\u7528\u54ea\u4e00\u4e2a\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u65b9\u6cd5\u7684\u91cd\u5199\u662f\u8fd0\u884c\u65f6\u591a\u6001，\u662f\u6307\u5728\u5b50\u7c7b\u4e2d\u91cd\u65b0\u5b9a\u4e49\u7236\u7c7b\u4e2d\u7684\u65b9\u6cd5，\u65b9\u6cd5\u540d\u3001\u53c2\u6570\u5217\u8868\u548c\u8fd4\u56de\u503c\u90fd\u5fc5\u987b\u548c\u7236\u7c7b\u4e2d\u7684\u76f8\u540c\u3002\u7a0b\u5e8f\u8fd0\u884c\u65f6\u6839\u636e\u5bf9\u8c61\u7684\u7c7b\u578b\u51b3\u5b9a\u8c03\u7528\u54ea\u4e00\u4e2a\u3002\u8fd0\u884c\u65f6\u8c03\u7528\u8fd9\u4e2a\u5f15\u7528\u53d8\u91cf\u7684\u65b9\u6cd5\u7684\u65f6\u5019，\u65b9\u6cd5\u7684\u884c\u4e3a\u8868\u73b0\u51fa\u5b50\u7c7b\u65b9\u6cd5\u7684\u7279\u5f81，\u5c31\u8fd9\u4f1a\u51fa\u73b0\u76f8\u540c\u7c7b\u578b\u7684\u53d8\u91cf\u8c03\u7528\u540c\u4e00\u4e2a\u65b9\u6cd5\u7684\u65f6\u5019，\u4f1a\u4ea7\u751f\u4e0d\u540c\u7684\u6548\u679c<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0final \u5173\u952e\u5b57\u5c31\u662f\u4e0d\u53ef\u53d8\u7684\u610f\u601d，\u53ef\u4ee5\u7528\u6765\u4fee\u9970\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u7c7b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 final \u4fee\u9970\u7c7b\u8868\u793a\u8fd9\u4e2a\u7c7b\u662f\u6700\u7ec8\u7c7b，\u4e0d\u53ef\u4ee5\u88ab\u7ee7\u627f\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 final \u4fee\u9970\u65b9\u6cd5\u8868\u793a\u8be5\u65b9\u6cd5\u4e0d\u80fd\u5728\u5b50\u7c7b\u4e2d\u88ab\u91cd\u5199，\u4e5f\u5c31\u662f\u8bf4\u65b9\u6cd5\u7684\u884c\u4e3a\u662f\u4e0d\u53d8\u7684\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 final \u4fee\u9970\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u53d8\u91cf\u8868\u793a\u8be5\u53d8\u91cf\u5728\u4e00\u6b21\u521d\u59cb\u5316\u4e4b\u540e\u7684\u6570\u503c\u5c31\u4e0d\u80fd\u88ab\u66f4\u6539\u3002\u4fee\u9970\u5f15\u7528\u7c7b\u578b\u7684\u53d8\u91cf\u8868\u793a\u5728\u8fd9\u4e2a\u5f15\u7528\u7c7b\u578b\u7684\u53d8\u91cf\u521d\u59cb\u5316\u4e4b\u540e\u5c31\u4e0d\u80fd\u6307\u5411\u53e6\u4e00\u4e2a\u5bf9\u8c61，\u4f46\u662f\u53ef\u4ee5\u4fee\u6539\u5b83\u6307\u5411\u7684\u5f15\u7528\u7c7b\u578b\u5bf9\u8c61\u7684\u5185\u5bb9\u3002<\/p>\n
final List<String> list = new ArrayList<>();
\nlist.add("hello"); \/\/ \u53ef\u4ee5,\u4fee\u6539\u5bf9\u8c61\u5185\u5bb9
\nlist = new ArrayList<>(); \/\/ \u7f16\u8bd1\u9519\u8bef,\u4e0d\u80fd\u6539\u6307\u5411<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 == \u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b，\u6bd4\u8f83\u7684\u662f\u4e24\u8005\u7684\u503c\u662f\u5426\u76f8\u7b49；\u5bf9\u4e8e\u5f15\u7528\u6570\u636e\u7c7b\u578b，\u6bd4\u8f83\u7684\u662f\u4e24\u8005\u6307\u5411\u7684\u662f\u4e0d\u662f\u5185\u5b58\u4e2d\u7684\u540c\u4e00\u4e2a\u4f4d\u7f6e，\u4e5f\u5c31\u662f\u662f\u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 equal \u662f\u4e00\u4e2a\u65b9\u6cd5，\u5b9a\u4e49\u5728 Object \u7c7b\u4e2d\u3002\u5728\u9ed8\u8ba4\u7684\u60c5\u51b5\u4e0b，\u6bd4\u8f83\u7684\u4e5f\u662f\u5bf9\u8c61\u7684\u5f15\u7528，\u4f46\u662f\u5728\u5b50\u7c7b\u4e2d\u901a\u5e38\u4f1a\u88ab\u91cd\u5199，\u6bd4\u5982\u5728 Integer，String \u4e2d\u90fd\u5df2\u7ecf\u5b8c\u6210\u91cd\u5199，\u7528\u6765\u6bd4\u8f83\u5bf9\u8c61\u7684\u5185\u5bb9\u662f\u5426\u76f8\u7b49\u3002\u5728\u91cd\u5199 equals \u65b9\u6cd5\u7684\u65f6\u5019，\u9700\u8981\u91cd\u5199 hashCode \u65b9\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 java \u4e2d\u7684\u63a5\u53e3\u4e3b\u8981\u7531 Collection\u00a0\u548c Map \u4e24\u4e2a\u63a5\u53e3\u6d3e\u751f\u3002\u5176\u4e2d Collection \u63a5\u53e3\u53c8\u6d3e\u751f\u51fa\u4e09\u4e2a\u63a5\u53e3，\u5206\u522b\u662f Set\u3001List \u548c Queue\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 List\u63a5\u53e3：\u6709\u5e8f\u96c6\u5408，\u5141\u8bb8\u91cd\u590d\u5143\u7d20\u3002\u5e38\u89c1\u7684\u5b9e\u73b0\u7c7b\u6709 LinkedList \u548c ArrayList\u3002
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Set\u63a5\u53e3：\u4e0d\u5141\u8bb8\u6709\u91cd\u590d\u7684\u5143\u7d20\u3002\u5e38\u89c1\u7684\u5b9e\u73b0\u7c7b\u6709 HashSet，LinkedHashSet，TreeSet
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Queue\u63a5\u53e3：\u8868\u793a\u961f\u5217\u7684\u6570\u636e\u7ed3\u6784\u3002\u5e38\u89c1\u7684\u5b9e\u73b0\u7c7b\u6709 LinkedList，PriorityQueue\u3002
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Map\u63a5\u53e3：\u8868\u793a\u952e\u503c\u5bf9\u7684\u96c6\u5408\u3002\u5e38\u89c1\u7684\u5b9e\u73b0\u7c7b\u6709 HashMap，LinkedHashMap，TreeMap\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0LinkedList\u3001ArrayList\u3001HashSet\u3001HashMap \u8fd9\u4e9b\u96c6\u5408\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u96c6\u5408\u3002\u5728\u591a\u7ebf\u7a0b\u7684\u73af\u5883\u4e2d，\u9700\u8981\u9002\u5f53\u7684\u540c\u6b65\u63aa\u65bd\u3002TreeSet \u548c\u00a0TreeMap \u4e5f\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u96c6\u5408\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 vector \u7c7b\u4f3c\u4e8e ArrayList，\u4f46\u662f vector\u662f\u7ebf\u7a0b\u5b89\u5168\u7684，\u5176\u4e2d\u7684\u6bcf\u4e2a\u516c\u5f00\u7684\u65b9\u6cd5\u90fd\u7528\u4e86synchronized \u5173\u952e\u5b57\u8fdb\u884c\u4fee\u9970\u3002\u56e0\u6b64\u5728\u6027\u80fd\u65b9\u9762\u4e0d\u5982 ArrayList，\u66f4\u63a8\u8350\u4f7f\u7528\u00a0ArrayList\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 HashTable \u7c7b\u4f3c\u4e8e HashMap，\u4f46\u662f\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u5176\u4e2d\u7684\u6bcf\u4e2a\u516c\u5f00\u7684\u65b9\u6cd5\u90fd\u7528\u4e86synchronized \u5173\u952e\u5b57\u8fdb\u884c\u4fee\u9970\u3002\u662f\u9501\u4f4f\u6574\u5f20\u8868，\u56e0\u6b64\u6027\u80fd\u5f88\u4f4e\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 ConcurrentHashmap \u63d0\u4f9b\u66f4\u597d\u7684\u5e76\u53d1\u6027\u80fd，\u5728 jdk1.7 \u4e4b\u524d\u901a\u8fc7\u9501\u5206\u79bb\u6280\u672f\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168，jdk1.8 \u5df2\u7ecf\u5b9e\u73b0\u4e86 CAS + synchronized \u9501\u5355\u4e2a\u6876\u8282\u70b9\u3002<\/p>\n
ArrayList \u548c Array\u7684\u533a\u522b<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 ArrayList \u662f\u52a8\u6001\u6570\u7ec4\u5b9e\u73b0\u7684，Array \u662f\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u7ec4\u5b9e\u73b0\u7684；
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ArrayList \u63d0\u4f9b\u4e86\u591a\u79cd\u529f\u80fd，\u6bd4\u5982\u81ea\u52a8\u6269\u5bb9\u673a\u5236\u3001\u589e\u52a0\u548c\u5220\u9664\u5143\u7d20\u7b49，Array \u6ca1\u6709\u8fd9\u4e9b\u529f\u80fd；
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Array \u53ef\u4ee5\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7c7b\u578b\u548c\u5bf9\u8c61，ArrayList \u53ea\u80fd\u5b58\u50a8\u5bf9\u8c61，\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b，\u9700\u8981\u4f7f\u7528\u5305\u88c5\u7c7b\u3002<\/p>\n
ArrayList \u548c LinkedList \u7684\u533a\u522b<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 ArrayList \u57fa\u4e8e\u52a8\u6001\u6570\u7ec4，LinkedList \u57fa\u4e8e\u53cc\u5411\u94fe\u8868\u3002ArrayList \u5728\u968f\u673a\u8bbf\u95ee\u7684\u65f6\u5019\u6027\u80fd\u8f83\u597d，\u4f46\u662f LinkedList \u5728\u968f\u673a\u8bbf\u95ee\u7684\u65f6\u5019\u9700\u8981\u904d\u5386\u6574\u4e2a\u94fe\u8868，\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n)；
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728\u6dfb\u52a0\u5143\u7d20\u7684\u65f6\u5019，ArrayList \u901a\u5e38\u5728\u672b\u5c3e\u6dfb\u52a0\u5143\u7d20\u7684\u65f6\u5019\u5f88\u5feb，\u4f46\u662f\u5728\u4e2d\u95f4\u6dfb\u52a0\u5143\u7d20\u7684\u65f6\u5019\u9700\u8981\u79fb\u52a8\u5176\u540e\u9762\u7684\u5143\u7d20，\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n)，\u4f46\u662f LinkedList \u5728\u6dfb\u52a0\u5143\u7d20\u7684\u65f6\u5019\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(1)；
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ArrayList \u6709\u6269\u5bb9\u673a\u5236，\u5f53\u5bb9\u91cf\u4e0d\u8db3\u7684\u65f6\u5019，ArrayList \u4f1a\u8fdb\u884c\u6269\u5bb9，\u4f1a\u6d89\u53ca\u5230\u521b\u5efa\u65b0\u6570\u7ec4\u548c\u590d\u7f6e\u65e7\u6570\u7ec4\u3002\u00a0\u5f53\u9700\u8981\u9891\u7e41\u7684\u968f\u673a\u8bbf\u95ee\u67d0\u4e00\u4e2a\u503c\u7684\u65f6\u5019，\u53ef\u4ee5\u4f7f\u7528 ArrayList；\u5f53\u7ecf\u5e38\u9700\u8981\u8fdb\u884c\u5220\u9664\u548c\u63d2\u5165\u7684\u64cd\u4f5c\u7684\u65f6\u5019，\u66f4\u9002\u5408\u4f7f\u7528 LinkedList\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u521b\u5efa\u4e00\u4e2a ArrayList \u7684\u65f6\u5019，\u4f1a\u5206\u914d\u4e00\u4e2a\u521d\u59cb\u5bb9\u91cf，\u9ed8\u8ba4\u4e3a10\u3002\u5f53 ArrayList \u4e2d\u7684\u5bb9\u91cf\u8fbe\u5230\u4e8610\u4e4b\u540e\u3002ArrayList \u6269\u5bb9\u7684\u8ba1\u7b97\u662f\u5728 grow() \u65b9\u6cd5\u91cc\u3002grow()\u65b9\u6cd5\u5c1d\u8bd5\u5148\u5c06\u6570\u7ec4\u7684\u5927\u5c0f\u6269\u5927\u4e3a1.5\u500d\u3002\u5982\u679c\u65b0\u7684\u6570\u7ec4\u7684\u5bb9\u91cf\u6ee1\u8db3\u9700\u6c42，\u4f1a\u8c03\u7528\u4e00\u4e2a Arrays.copyof() \u65b9\u6cd5，\u5c06\u6240\u6709\u7684\u5143\u7d20\u4ece\u65e7\u7684\u6570\u7ec4\u4e2d\u79fb\u5230\u65b0\u7684\u6570\u7ec4\u4e2d，\u8fd9\u4e2a\u65b9\u6cd5\u662f\u771f\u6b63\u7684\u5b9e\u73b0\u6269\u5bb9\u7684\u65b9\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5728 jdk1.8\u4e4b\u524d，HashMap \u662f\u7531\u6570\u7ec4\u548c\u94fe\u8868\u7ec4\u6210\u7684，\u5f53\u53d1\u751f\u54c8\u5e0c\u51b2\u7a81\u7684\u65f6\u5019，\u591a\u7684\u5143\u7d20\u4f1a\u4ee5\u94fe\u8868\u7684\u5f62\u5f0f\u6302\u5728\u6570\u7ec4\u7684\u540c\u4e00\u4e2a\u4f4d\u7f6e\u3002\u5728 jdk1.8 \u4e4b\u540e\u5f15\u5165\u4e86\u7ea2\u9ed1\u6811，\u5f53\u94fe\u8868\u957f\u5ea6\u8d85\u8fc7\u4e00\u5b9a\u7684\u9608\u503c（\u9ed8\u8ba4\u4e3a8）\u7684\u65f6\u5019，\u94fe\u8868\u4f1a\u8f6c\u6362\u6210\u7ea2\u9ed1\u6811\u3002\u7ea2\u9ed1\u6811\u5728\u5b9e\u73b0\u7684\u65f6\u5019\u4e0d\u8981\u6c42\u7edd\u5bf9\u7684\u5e73\u8861，\u53ef\u4ee5\u5141\u8bb8\u5c40\u90e8\u7684\u4e0d\u5e73\u8861，\u76f8\u8f83\u4e8e AVL \u6811\u6765\u8bf4\u51cf\u5c11\u4e86\u6027\u80fd\u7684\u5f00\u9500\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6700\u4f73\u60c5\u51b5：\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(1)，\u5143\u7d20\u5206\u5e03\u5747\u5300\u7684\u60c5\u51b5\u4e0b，\u901a\u8fc7 key \u7684\u54c8\u5e0c\u503c\u76f4\u63a5\u5b9a\u4f4d\u5230\u6570\u7ec4\u4e2d\u7684\u67d0\u4e00\u4e2a\u4f4d\u7f6e，\u6ca1\u6709\u53d1\u751f\u54c8\u5e0c\u51b2\u7a81\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6700\u574f\u60c5\u51b5：\u94fe\u8868\u5b9e\u73b0\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n)，\u7ea2\u9ed1\u6811\u5b9e\u73b0\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(logn)<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u89e3\u51b3\u54c8\u5e0c\u51b2\u7a81\u7684\u65b9\u6cd5\u6709\u94fe\u5730\u5740\u6cd5\u548c\u5f00\u653e\u5bfb\u5740\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u94fe\u5730\u5740\u6cd5：\u5f53\u53d1\u751f\u54c8\u5e0c\u51b2\u7a81\u7684\u65f6\u5019，\u5728\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u540e\u9762\u7ef4\u62a4\u4e00\u4e2a\u94fe\u8868，\u628a\u65b0\u6765\u7684\u5143\u7d20\u6302\u5728\u94fe\u8868\u7684\u5c3e\u90e8\u3002JAVA \u4e2d\u7684 HashMap \u4f7f\u7528\u94fe\u5730\u5740\u6cd5\u6765\u89e3\u51b3\u54c8\u5e0c\u51b2\u7a81\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5f00\u653e\u5bfb\u5740\u6cd5：\u5f53\u53d1\u751f\u54c8\u5e0c\u51b2\u7a81\u7684\u65f6\u5019，\u91c7\u7528\u67d0\u79cd\u53c2\u6d4b\u65b9\u6cd5\u5728\u6570\u7ec4\u4e2d\u5bfb\u627e\u5230\u7a7a\u95f2\u7684\u4f4d\u7f6e\u6765\u5b58\u50a8\u5143\u7d20\u3002\u5e38\u89c1\u7684\u63a2\u6d4b\u65b9\u6cd5\u6709\u7ebf\u6027\u63a2\u6d4b\u3001\u4e8c\u6b21\u63a2\u6d4b\u548c\u53cc\u91cd\u54c8\u5e0c\u6cd5\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u4e00：\u5224\u65ad\u6574\u4e2a\u6570\u7ec4\u662f\u4e0d\u662f\u7a7a\u7684，\u5982\u679c\u662f\u7684\u8bdd，\u9700\u8981\u8fdb\u884c\u6570\u7ec4\u6269\u5bb9\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u4e8c：\u901a\u8fc7 key \u7b97\u51fa\u5e94\u8be5\u63d2\u5165\u7684\u6570\u7ec4\u7684\u7d22\u5f15，\u5982\u679c\u7d22\u5f15\u4f4d\u7f6e\u6ca1\u6709\u5143\u7d20，\u90a3\u4e48\u76f4\u63a5\u628a\u5143\u7d20\u63d2\u5165\u5230\u6570\u7ec4，\u7136\u540e\u8f6c\u5230\u6b65\u9aa4\u516d，\u68c0\u67e5\u662f\u5426\u6570\u7ec4\u6ee1\u4e86\u3002\u5982\u679c\u7d22\u5f15\u4f4d\u7f6e\u6709\u5143\u7d20，\u8f6c\u5230\u6b65\u9aa4\u4e09\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u4e09：\u5224\u65ad\u6570\u7ec4\u76f8\u540c\u7d22\u5f15\u4f4d\u7f6e\u5df2\u7ecf\u5b58\u5728\u7684\u5143\u7d20\u7684 key \u662f\u5426\u4e0e\u8be5\u5373\u5c06\u88ab\u63d2\u5165\u7684\u5143\u7d20\u7684 key \u76f8\u540c，\u5982\u679c\u76f8\u540c\u76f4\u63a5\u8986\u76d6\u539f value，\u5426\u5219\u8f6c\u5230\u6b65\u9aa4\u56db\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u56db：\u5224\u65ad\u8282\u70b9\u4f4d\u7f6e\u662f\u4e0d\u662f\u4e00\u68f5\u7ea2\u9ed1\u6811\u8282\u70b9（TreeNode），\u5982\u679c\u662f，\u5c31\u76f4\u63a5\u5728\u7ea2\u9ed1\u6811\u4e2d\u63d2\u5165\u952e\u503c\u5bf9，\u7136\u540e\u8f6c\u5230\u6b65\u9aa4\u516d；\u5982\u679c\u4e0d\u662f\u7ea2\u9ed1\u6811\u8282\u70b9，\u8f6c\u5230\u6b65\u9aa4\u4e94\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u4e94：\u904d\u5386\u6570\u7ec4\u8be5\u4f4d\u7f6e\u7684\u94fe\u8868，\u5982\u679c\u5df2\u7ecf\u53d1\u73b0\u8fd9\u4e2a\u76f8\u540c\u7684 key，\u76f4\u63a5\u8986\u76d6，\u904d\u5386\u5230\u6700\u540e\u6ca1\u6709\u53d1\u73b0\u76f8\u540c key，\u76f4\u63a5\u63d2\u5165\u5230\u94fe\u8868\u7684\u5c3e\u90e8\u3002\u7136\u540e\u5224\u65ad\u94fe\u8868\u7684\u957f\u5ea6\u662f\u5426\u5927\u4e8e\u7b49\u4e8e 8，\u5982\u679c\u5927\u4e8e 8，\u5c06\u94fe\u8868\u8f6c\u4e3a\u7ea2\u9ed1\u6811（treeifyBin()），\u5426\u5219\u7ee7\u7eed\u4fdd\u6301\u94fe\u8868\u7684\u5f62\u72b6\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u6b65\u9aa4\u516d：\u63d2\u5165\u6210\u529f\u540e，\u5224\u65ad\u5df2\u7ecf\u63d2\u5165\u7684\u6570\u91cf\u662f\u5426\u5927\u4e8e\u6700\u5927\u5bb9\u91cf\u9608\u503c，\u8d85\u8fc7\u7684\u60c5\u51b5\u4e0b\u9700\u8981\u8fdb\u884c\u6269\u5bb9\u64cd\u4f5c\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0jdk1.7 \u7248\u672c，\u9996\u5148\u751f\u6210\u65b0\u6570\u7ec4\u3002\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u4f4d\u7f6e\u4e0a\u7684\u94fe\u8868\u7684\u6bcf\u4e2a\u5143\u7d20，\u83b7\u53d6\u6bcf\u4e2a\u5143\u7d20\u7684 key \u503c，\u5e76\u4e14\u57fa\u4e8e\u65b0\u7684\u6570\u7ec4\u7684\u957f\u5ea6，\u7b97\u51fa\u6bcf\u4e00\u4e2a key \u5728\u65b0\u7684\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e，\u5c06\u5143\u7d20\u6dfb\u52a0\u7684\u65b0\u7684\u6570\u7ec4\u4e2d\u53bb，\u6700\u540e\u5c06\u65b0\u7684\u6570\u7ec4\u8d4b\u503c\u7ed9\u539f HashMap \u5bf9\u8c61\u7684 table \u5c5e\u6027\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 jdk1.8 \u7248\u672c，\u904d\u5386\u6574\u4e2a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e00\u4e2a\u4f4d\u7f6e\u4e0a\u7684\u94fe\u8868\u6216\u8005\u7ea2\u9ed1\u6811\u3002\u5982\u679c\u662f\u94fe\u8868，\u5c31\u904d\u5386\u94fe\u8868\u4e0a\u7684\u5168\u90e8\u7684\u5143\u7d20，\u7136\u540e\u91cd\u65b0\u8ba1\u7b97 key \u503c\u5728\u65b0\u7684\u6570\u7ec4\u7684\u4f4d\u7f6e，\u5e76\u6dfb\u52a0\u5230\u6570\u7ec4\u4e2d\u53bb\u3002\u5982\u679c\u662f\u7ea2\u9ed1\u6811，\u5148\u8ba1\u7b97\u51fa\u6bcf\u4e00\u4e2a\u5143\u7d20\u5728\u65b0\u7684\u6570\u7ec4\u4e2d\u7684\u4f4d\u7f6e，\u7edf\u8ba1\u6bcf\u4e2a\u6570\u7ec4\u4f4d\u7f6e\u4e0b\u6807\u4e0a\u7684\u5143\u7d20\u4e2a\u6570\u3002\u5982\u679c\u5143\u7d20\u4e2a\u6570\u5c0f\u4e8e \u6216\u7b49\u4e8e 8，\u5c31\u751f\u6210\u4e00\u4e2a\u94fe\u8868，\u7136\u540e\u628a\u94fe\u8868\u7684\u5934\u8282\u70b9\u653e\u5230\u6570\u7ec4\u8be5\u4f4d\u7f6e\u7684\u5143\u7d20\u4e2d\u53bb\u3002\u5982\u679c\u5143\u7d20\u4e2a\u6570\u8d85\u8fc7\u4e86 8，\u90a3\u5c31\u751f\u6210\u7ea2\u9ed1\u6811，\u5e76\u5c06\u6839\u8282\u70b9\u6dfb\u52a0\u5230\u6570\u7ec4\u4e2d\u7684\u5bf9\u5e94\u4f4d\u7f6e\u4e0a\u53bb\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u4e3b\u8981\u662f\u56e0\u4e3a\u4ed6\u7684\u64cd\u4f5c\u4e0d\u662f\u539f\u5b50\u6027\u7684，\u5f53\u4e24\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\u8bfb\u5199\u64cd\u4f5c\u65f6，\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u5199\u64cd\u4f5c，\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u8bfb\u64cd\u4f5c，\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u3002\u5f53\u5728\u591a\u7ebf\u7a0b\u7684\u60c5\u51b5\u4e0b，\u68c0\u67e5\u518d\u5199\u5165\u8fd9\u79cd\u64cd\u4f5c\u5b58\u5728\u7ade\u4e89\u6761\u4ef6，\u53ef\u80fd\u88ab\u5176\u4ed6\u7ebf\u7a0b\u63d2\u5165，\u5bfc\u81f4\u91cd\u590d put \u6216\u6570\u636e\u8986\u76d6\u3002<\/p>\n
if (!map.containsKey(k)) map.put(k, v);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u4f7f\u7528 Collections.synchronizedMap() \u65b9\u6cd5，\u8be5\u65b9\u6cd5\u521b\u5efa\u51fa\u6765\u4e00\u4e2a\u7ebf\u7a0b\u5b89\u5168\u7684 HashMap，\u901a\u8fc7\u7ed9\u6bcf\u4e2a\u65b9\u6cd5\u52a0 synchronized \u6765\u5b9e\u73b0\u5355\u6b21\u64cd\u4f5c\u7684\u7ebf\u7a0b\u5b89\u5168，\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u540c\u6b65\u7684 Map \u5305\u88c5\u5668，\u4f7f\u5f97\u5bf9\u6240\u6709\u7684 Map \u64cd\u4f5c\u90fd\u662f\u540c\u6b65\u7684\u3002<\/p>\n
HashMap<String, Integer> raw = new HashMap<>();
\nMap<String, Integer> safe = Collections.synchronizedMap(raw);<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u4f7f\u7528 ConcurrentHashMap，\u4e13\u95e8\u4e3a\u4e86\u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u8bbe\u8ba1\u7684\u54c8\u5e0c\u8868\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u9996\u5148\u770b jdk1.7 \u7248\u672c\u4e4b\u524d\u7684\u573a\u666f，\u4e3b\u8981\u662f\u4f7f\u7528\u5206\u6bb5\u9501\u7684\u8bbe\u8ba1\u6765\u5b9e\u73b0\u7684\u3002\u9996\u5148\u5c06\u6574\u4e2a map \u5206\u6210\u82e5\u5e72\u4e2aSegment，\u6bcf\u4e2a segment \u7ee7\u627f\u4e86 ReentrantLock \u5e76\u5185\u90e8\u7ef4\u62a4\u4e00\u4e2a hashentry，\u8fd9\u4e2a hashentry \u5c31\u662f\u771f\u6b63\u7528\u6765\u5b58\u50a8\u952e\u503c\u5bf9\u7684\u5730\u65b9，\u6bcf\u4e00\u4e2a segment \u5171\u4eab\u540c\u4e00\u628a\u9501\u3002\u5728\u5199\u5165\u7684\u65f6\u5019，\u9700\u8981\u5148\u901a\u8fc7\u6bcf\u4e2a key \u7684 hash \u503c\u6765\u5b9a\u4f4d\u5230 segment \u7684\u5177\u4f53\u4f4d\u7f6e，\u7136\u540e\u53ea\u5bf9\u8fd9\u4e2a segment \u52a0\u9501（lock()），\u64cd\u4f5c\u5b8c\u4e86\u4e4b\u540e\u518d\u89e3\u9501（unlock()）\u3002\u5728\u8bfb\u7684\u65f6\u5019\u4e0d\u52a0\u9501，\u56e0\u4e3a\u00a0hashentry \u7684 value \u548c next \u5b57\u6bb5\u9ed8\u8ba4\u6dfb\u52a0\u4e86 volatile \u5b57\u6bb5，\u4fdd\u8bc1\u4e86\u5185\u5b58\u7684\u53ef\u89c1\u6027\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u518d\u4ee5\u00a0jdk1.8 \u4e3a\u4f8b，\u4e3b\u8981\u662f\u7531\u6570\u7ec4\u3001\u94fe\u8868\u548c\u7ea2\u9ed1\u6811\u7ec4\u6210\u7684，\u5e95\u5c42\u4f7f\u7528 CAS \u548c synchronized \u9501\u673a\u5236\u6765\u5b9e\u73b0\u5e76\u53d1\u5b89\u5168\u3002\u5199\u5165\u7684\u65f6\u5019，\u5982\u679c\u8fd9\u4e2a\u6570\u7ec4\u5143\u7d20\u6ca1\u6709\u503c，\u90a3\u4e48\u76f4\u63a5\u7528 CAS\u00a0\u4e50\u89c2\u9501\u6765\u5b9e\u73b0\u5bf9\u6570\u7ec4\u7684\u5199\u5165\u64cd\u4f5c；\u5982\u679c\u6709\u503c，\u90a3\u5c31\u9700\u8981\u901a\u8fc7\u00a0synchronized \u9501\u8fdb\u884c\u540c\u6b65\u64cd\u4f5c，\u9501\u7684\u7c92\u5ea6\u662f\u69fd\u4f4d\u3002\u8bfb\u53d6\u7684\u65f6\u5019，\u4e3b\u8981\u56e0\u4e3a Node \u8282\u70b9\u4e2d\u7684 val \u548c next \u5b57\u6bb5\u524d\u9762\u6dfb\u52a0\u4e86 volatile \u5b9e\u73b0\u4e86\u53ef\u89c1\u6027，\u4e00\u4e2a\u7ebf\u7a0b\u5199\u5165\u540e，\u5176\u4ed6\u7684\u7ebf\u7a0b\u7acb\u523b\u5c31\u53ef\u4ee5\u770b\u5230\u88ab\u5199\u5165\u7684\u6570\u636e，\u63d0\u9ad8\u4e86\u6027\u80fd\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 HashTable \u662f\u540c\u6b65\u7684，\u662f\u901a\u8fc7\u5728\u6bcf\u4e2a\u65b9\u6cd5\u4e0a\u9762\u6dfb\u52a0 synchronized \u5173\u952e\u5b57\u6765\u5b9e\u73b0\u7684，\u53ef\u4ee5\u518d\u591a\u7ebf\u7a0b\u7684\u73af\u5883\u4e0b\u4f7f\u7528，\u4fdd\u8bc1\u5e76\u53d1\u7684\u5b89\u5168\u6027\u3002\u4f46\u662f HashMap \u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684，\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7 Collections.synchronizedMap() \u6765\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u5b89\u5168\u7684 HashMap\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u7531\u4e8e HashTable \u662f\u540c\u6b65\u7684，\u6240\u4ee5\u4ed6\u7684\u6027\u80fd\u6bd4\u8f83\u5dee\u3002\u76f8\u5bf9\u800c\u8a00\u7531\u4e8e HashMap \u662f\u5f02\u6b65\u7684，\u6240\u4ee5\u4ed6\u7684\u6027\u80fd\u5c31\u6bd4\u8f83\u597d，\u514d\u53bb\u4e86\u4e00\u4e9b\u67b7\u9501\u548c\u89e3\u9501\u7684\u64cd\u4f5c\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 HashTable \u4e0d\u5141\u8bb8\u952e\u6216\u503c\u4e3a\u7a7a\u503c，\u4f46\u662f HashMap \u7684\u952e\u548c\u503c\u90fd\u53ef\u4ee5\u4e3a\u7a7a\u503c\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u7ee7\u627f Thread \u7c7b：\u901a\u8fc7\u521b\u5efa Thread \u7c7b\u7684\u5b50\u7c7b，\u7136\u540e\u91cd\u5199\u5176\u4e2d\u7684 run \u65b9\u6cd5\u3002<\/p>\n
class MyThread extends Thread {
\n @Override
\n public void run() {
\n System.out.println("\u7ebf\u7a0b\u8fd0\u884c\u4e2d: " + Thread.currentThread().getName());
\n }
\n}<\/p>\n
new MyThread().start();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5b9e\u73b0 Runnable \u63a5\u53e3：\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0\u4e86 Runnable \u63a5\u53e3\u7684\u7c7b，\u5e76\u5b9e\u73b0\u5176\u4e2d\u7684 run \u65b9\u6cd5\u3002\u7136\u540e\u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b，\u5c06\u5b9e\u4f8b\u4ee5\u53c2\u6570\u7684\u5f62\u5f0f\u4f20\u9012\u7ed9 Thread \u5bf9\u8c61\u3002<\/p>\n
class MyTask implements Runnable {
\n @Override
\n public void run() {
\n System.out.println("\u4efb\u52a1\u8fd0\u884c\u4e2d: " + Thread.currentThread().getName());
\n }
\n}<\/p>\n
new Thread(new MyTask()).start();<\/p>\n
\/\/ \u7b49\u4ef7\u4e8e
\nRunnable task = new MyTask();
\nThread t = new Thread(task);
\nt.start();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u4f7f\u7528 Callable \u548c Future \u63a5\u53e3：\u521b\u5efa\u4e00\u4e2a Callable \u7684\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b，\u5e76\u5b9e\u73b0\u5176\u4e2d\u7684 call \u65b9\u6cd5，\u8be5\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u7ed3\u679c\u548c\u629b\u51fa\u5f02\u5e38\u3002\u901a\u5e38\u4f7f\u7528 FutureTask \u5bf9\u8c61\u6765\u5305\u88c5 Callable，\u7136\u540e\u5c06 FutureTask \u5f53\u4f5c\u53c2\u6570\u4f20\u9012\u5230 Thread \u5bf9\u8c61\u3002<\/p>\n
Callable<Integer> task = () -> {
\n Thread.sleep(1000);
\n return 42;
\n};<\/p>\n
FutureTask<Integer> futureTask = new FutureTask<>(task);
\nnew Thread(futureTask).start();<\/p>\n
Integer result = futureTask.get(); \/\/ \u963b\u585e\u83b7\u53d6\u8fd4\u56de\u503c<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u4f7f\u7528\u7ebf\u7a0b\u6c60\u521b\u5efa\u7ebf\u7a0b：\u901a\u8fc7\u4f7f\u7528 Excutors \u7c7b\u8fdb\u884c\u521b\u5efa\u7ebf\u7a0b\u6c60，\u901a\u8fc7\u7ebf\u7a0b\u6c60\u6765\u7ba1\u7406\u7ebf\u7a0b\u3002<\/p>\n
ExecutorService pool = Executors.newFixedThreadPool(4);<\/p>\n
\/\/ \u63d0\u4ea4\u6ca1\u6709\u8fd4\u56de\u503c\u7684\u4efb\u52a1
\npool.submit(new PrintTask());<\/p>\n
\/\/ \u63d0\u4ea4\u6709\u8fd4\u56de\u503c\u7684\u4efb\u52a1
\nFuture<Integer> future = pool.submit(new ComputeTask());
\nInteger value = future.get();<\/p>\n
pool.shutdown();<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 run \u65b9\u6cd5\u662f\u7ebf\u7a0b\u7684\u6267\u884c\u4f53，\u5305\u62ec\u7ebf\u7a0b\u8981\u6267\u884c\u7684\u4ee3\u7801\u3002\u5982\u679c\u76f4\u63a5\u8c03\u7528 run \u65b9\u6cd5，\u90a3\u4e48\u4f1a\u76f4\u63a5\u5728\u672c\u7ebf\u7a0b\u5167\u90e8\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c，\u5e76\u4e0d\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 start \u65b9\u6cd5\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b，run \u65b9\u6cd5\u4e2d\u7684\u5185\u5bb9\u4f1a\u5728\u8fd9\u4e2a\u7ebf\u7a0b\u4e2d\u6267\u884c\u3002\u5f53\u5f00\u59cb\u8c03\u7528\u7684\u65f6\u5019，\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u4e3a\u7ebf\u7a0b\u5206\u914d\u7cfb\u7edf\u8d44\u6e90，\u5e76\u5c06\u7ebf\u7a0b\u7684\u72b6\u6001\u8bbe\u7f6e\u4e3a\u5c31\u7eea\u6001，\u4e0b\u6b21 cpu \u8c03\u5ea6\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u5f00\u59cb\u6267\u884c\u4e86\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u516c\u5e73\u9501\/\u975e\u516c\u5e73\u9501：\u516c\u5e73\u9501\u662f\u6307\u591a\u4e2a\u8fdb\u7a0b\u6309\u7167\u7533\u8bf7\u9501\u7684\u987a\u5e8f\u83b7\u53d6\u9501，\u975e\u516c\u5e73\u9501\u7684\u9501\u7684\u83b7\u53d6\u987a\u5e8f\u548c\u7533\u8bf7\u9501\u7684\u987a\u5e8f\u5e76\u4e0d\u5b8c\u5168\u4e00\u81f4\u3002\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6709\u4e9b\u8fdb\u7a0b\u53d1\u751f\u9965\u997f\u3002ReentrantLock \u9ed8\u8ba4\u5c31\u662f\u975e\u516c\u5e73\u9501，synchronized \u4e5f\u662f\u4e00\u79cd\u975e\u516c\u5e73\u9501\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u53ef\u91cd\u5165\u9501：\u662f\u6307\u5728\u540c\u4e00\u4e2a\u7ebf\u7a0b\u7684\u5916\u5c42\u65b9\u6cd5\u83b7\u53d6\u5230\u4e86\u9501\u4e4b\u540e，\u5185\u5c42\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u83b7\u53d6\u5230\u9501\u3002ReentrantLock \u548c Synchronized \u90fd\u662f\u53ef\u91cd\u5165\u9501\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u72ec\u4eab\u9501\/\u5171\u4eab\u9501：\u72ec\u4eab\u9501\u662f\u6307\u5728\u540c\u4e00\u65f6\u95f4\u53ea\u80fd\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709，\u5171\u4eab\u9501\u662f\u6307\u8be5\u9501\u53ef\u4ee5\u88ab\u591a\u4e2a\u7ebf\u7a0b\u6301\u6709\u3002ReentrantLock \u548c Synchronized \u90fd\u662f\u72ec\u4eab\u9501\u3002Lock \u7684\u5b9e\u73b0\u7c7b\u4e2d ReadwriteLock \u662f\u8bfb\u7684\u65f6\u5019\u5171\u4eab\u9501，\u5199\u7684\u65f6\u5019\u662f\u72ec\u5360\u9501\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u4e50\u89c2\u9501\/\u60b2\u89c2\u9501：\u8fd9\u4e24\u79cd\u9501\u770b\u5f85\u5e76\u53d1\u7684\u89d2\u5ea6\u4e0d\u540c\u3002\u60b2\u89c2\u9501\u4f1a\u8ba4\u4e3a\u5728\u5e76\u53d1\u7684\u573a\u666f\u4e0b，\u5bf9\u540c\u4e00\u4e2a\u8d44\u6e90\u7684\u8bbf\u95ee\u4e00\u5b9a\u4f1a\u53d1\u751f\u4fee\u6539，\u6240\u4ee5\u5728\u5bf9\u8fd9\u4e2a\u8d44\u6e90\u8fdb\u884c\u4fee\u6539\u4e4b\u524d，\u4e00\u5b9a\u8981\u4e0a\u9501\u3002\u4e50\u89c2\u9501\u4f1a\u8ba4\u4e3a\u5728\u8bbf\u95ee\u7684\u65f6\u5019，\u4e00\u822c\u4e0d\u4f1a\u53d1\u751f\u4fee\u6539，\u6240\u4ee5\u53ea\u6709\u5728\u60f3\u8981\u4fee\u6539\u7684\u65f6\u5019，\u68c0\u67e5\u662f\u5426\u53ef\u4ee5\u66f4\u6539，\u5982\u679c\u4e0d\u53ef\u4ee5\u7684\u8bdd\u5c31\u91cd\u8bd5\u3002\u5728\u5bf9\u8d44\u6e90\u7684\u5199\u64cd\u4f5c\u591a\u7684\u65f6\u5019，\u66f4\u9002\u5408\u4f7f\u7528\u60b2\u89c2\u9501\u3002\u5982\u679c\u662f\u8bfb\u64cd\u4f5c\u66f4\u591a\u7684\u573a\u666f\u4e0b，\u4f7f\u7528\u4e50\u89c2\u9501\u6548\u7387\u66f4\u9ad8，\u56e0\u4e3a\u6ca1\u6709\u4e0a\u9501\u548c\u89e3\u9501\u7684\u8d44\u6e90\u5f00\u9500\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u504f\u5411\u9501\/\u8f7b\u91cf\u7ea7\u9501\/\u91cd\u91cf\u7ea7\u9501：\u662f\u9488\u5bf9\u00a0Synchronized \u9501\u7684\u4e09\u79cd\u9501\u7684\u72b6\u6001\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u81ea\u65cb\u9501：\u5728\u5c1d\u8bd5\u83b7\u53d6\u9501\u5931\u8d25\u7684\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u963b\u585e\u7ebf\u7a0b，\u800c\u662f\u4e00\u76f4\u5faa\u73af\u7b49\u5f85\u53d6\u83b7\u53d6，\u51cf\u5c11\u4e0a\u4e0b\u6587\u5207\u6362\u5e26\u6765\u7684\u5f00\u9500，\u4f46\u662f\u4e5f\u4f1a\u6d88\u8017 CPU\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u4e00\u4e2a\u65b9\u6cd5\u6216\u8005\u4ee3\u7801\u5757\u88ab synchronized \u4fee\u9970\u7684\u65f6\u5019，\u8fd9\u90e8\u5206\u4e34\u754c\u533a\u5728\u540c\u4e00\u65f6\u95f4\u53ea\u80fd\u6709\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u884c\u8bbf\u95ee，\u5176\u4ed6\u7ebf\u7a0b\u5fc5\u987b\u7b49\u5f85\u5f53\u524d\u7ebf\u7a0b\u91ca\u653e\u9501\u624d\u80fd\u8bbf\u95ee\u8d44\u6e90\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u00a0synchronized \u4fee\u9970\u5b9e\u4f8b\u65b9\u6cd5\u7684\u65f6\u5019，\u9501\u4f4f\u7684\u662f\u8fd9\u4e2a\u5bf9\u8c61，\u4e0d\u540c\u7684\u5b9e\u4f8b\u4e4b\u95f4\u4e92\u76f8\u4e0d\u5f71\u54cd\u3002\u4fee\u9970\u9759\u6001\u65b9\u6cd5\u7684\u65f6\u5019，\u9501\u7684\u662f Class \u5bf9\u8c61，\u8be5\u5bf9\u8c61\u7684\u6240\u6709\u7684\u5b9e\u4f8b\u5171\u4eab\u540c\u4e00\u628a\u9501\u3002\u4fee\u9970\u4ee3\u7801\u5757\u7684\u65f6\u5019，\u9501\u5bf9\u8c61\u662f\u7531\u6211\u4eec\u81ea\u5df1\u6307\u5b9a\u7684，\u53ef\u4ee5\u9009\u62e9\u6027\u7684\u9501\u4f4f\u4ee3\u7801\u7684\u4e00\u90e8\u5206，\u800c\u4e0d\u662f\u6574\u4e2a\u65b9\u6cd5，\u63d0\u9ad8\u6548\u7387\u3002\u968f\u7740 jdk \u7684\u4e0d\u65ad\u66f4\u65b0，synchronized \u65b9\u6cd5\u4e5f\u4ece\u539f\u6765\u7684\u5fc5\u987b\u8981\u5207\u6362\u56de\u5185\u6838\u6001，\u5347\u7ea7\u5230\u4e86\u73b0\u5728\u7684\u504f\u5411\u9501\u3001\u8f7b\u91cf\u7ea7\u9501\u548c\u91cd\u91cf\u7ea7\u9501\u3002\u51cf\u5c11\u4e86\u8d44\u6e90\u7684\u6d88\u8017\u3002\u9501\u7684\u72b6\u6001\u8bb0\u5f55\u5728\u5bf9\u8c61\u5934\u7684\u4e00\u4e2a\u5b57\u6bb5\u4e2d\u3002\u504f\u5411\u9501\u662f\u6307\u540c\u4e00\u4e2a\u7ebf\u7a0b\u4e00\u76f4\u8bbf\u95ee\u4e00\u6bb5\u540c\u6b65\u4ee3\u7801，\u8be5\u7ebf\u7a0b\u81ea\u52a8\u83b7\u53d6\u9501\u3002\u5f53\u5904\u4e8e\u504f\u5411\u9501\u7684\u65f6\u5019，\u7a81\u7136\u88ab\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee，\u504f\u5411\u9501\u4f1a\u5347\u7ea7\u6210\u8f7b\u91cf\u7ea7\u9501，\u5176\u4ed6\u7684\u7ebf\u7a0b\u4f1a\u4e00\u76f4\u5904\u4e8e\u81ea\u65cb\u7b49\u5f85\u7684\u72b6\u6001\u3002\u5f53\u81ea\u65cb\u8d85\u8fc7\u4e86\u4e00\u5b9a\u7684\u9608\u503c，\u6216\u8005\u53c8\u6709\u5176\u4ed6\u7684\u7ebf\u7a0b\u5230\u8fbe\u7684\u65f6\u5019，\u8f7b\u91cf\u7ea7\u9501\u5c31\u4f1a\u5347\u7ea7\u6210\u91cd\u91cf\u7ea7\u9501\u3002\u8fd9\u4e2a\u65f6\u5019\u6ca1\u6709\u83b7\u53d6\u9501\u7684\u7ebf\u7a0b\u4e0d\u4f1a\u518d\u81ea\u65cb\u7b49\u5f85，\u800c\u662f\u8fdb\u5165\u963b\u585e\u6001，\u7531\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\u8c03\u5ea6\u3002\u4e5f\u5c31\u610f\u5473\u7740\u7ebf\u7a0b\u7531\u7528\u6237\u6001\u8fdb\u5165\u4e86\u6838\u5fc3\u6001，\u5f00\u9500\u8f83\u5927\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u90fd\u662f\u7528\u6765\u5b9e\u73b0\u7ebf\u7a0b\u540c\u6b65\u7684\u624b\u6bb5，synchronized \u662f\u57fa\u4e8e JVM \u7684\u5185\u7f6e\u9501\u5b9e\u73b0\u7684，\u53ef\u4ee5\u4fee\u9970\u65b9\u6cd5\u548c\u4ee3\u7801\u5757，\u4f7f\u7528\u8d77\u6765\u6bd4\u8f83\u7b80\u5355\u76f4\u63a5\u3002\u800c\u00a0ReentrantLock \u662f locks \u5305\u4e0b\u7684\u4e00\u4e2a\u9501\u7684\u5b9e\u73b0，\u9700\u8981\u663e\u793a\u521b\u5efa，\u5e76\u4e14\u9700\u8981\u624b\u52a8\u7684 lock() \u548c unlock() \u8fdb\u884c\u9501\u7684\u83b7\u53d6\u548c\u91ca\u653e\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0synchronized \u7075\u6d3b\u6027\u76f8\u5bf9\u8f83\u4f4e，\u4ed6\u53ea\u80fd\u7528\u6765\u4fee\u9970\u65b9\u6cd5\u548c\u4ee3\u7801\u5757\u3002\u65b9\u6cd5\u4e00\u65e6\u5f00\u59cb\u6267\u884c，\u5728\u7b49\u5f85\u7ebf\u7a0b\u83b7\u53d6\u9501\u7684\u65f6\u5019，\u4e5f\u4e0d\u80fd\u4e2d\u65ad，\u6ca1\u6709\u8d85\u65f6\u673a\u5236，\u4e00\u65e6\u83b7\u53d6\u4e0d\u5230\u9501\u5c31\u4f1a\u4e00\u76f4\u7b49\u5f85，\u7ebf\u7a0b\u8c03\u5ea6\u7531 JVM \u63a7\u5236\u3002synchronized \u53ef\u4ee5\u901a\u8fc7 wait()\u3001notify() \u548c notifyAll() \u4e0e\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\u914d\u5408\u4f7f\u7528\u3002<\/p>\n
private final Object lock = new Object(); \/\/ \u9501\u5bf9\u8c61
\nprivate int stock = 0; \/\/ \u5e93\u5b58，\u5bb9\u91cf 1<\/p>\n
\/\/ \u751f\u4ea7\u8005
\nsynchronized (lock) {
\n while (stock >= 1) lock.wait(); \/\/ \u6ee1\u4e86 \u2192 \u7b49\u5f85（\u5bf9\u5e94 notFull.await()）
\n stock++; \/\/ \u653e\u5165\u5143\u7d20
\n lock.notifyAll(); \/\/ \u5524\u9192\u6d88\u8d39\u8005（\u5bf9\u5e94 notEmpty.signal()）
\n}<\/p>\n
\/\/ \u6d88\u8d39\u8005
\nsynchronized (lock) {
\n while (stock <= 0) lock.wait(); \/\/ \u7a7a\u4e86 \u2192 \u7b49\u5f85（\u5bf9\u5e94 notEmpty.await()）
\n stock–; \/\/ \u53d6\u51fa\u5143\u7d20
\n lock.notifyAll(); \/\/ \u5524\u9192\u751f\u4ea7\u8005（\u5bf9\u5e94 notFull.signal()）
\n}<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ReentrantLock \u652f\u6301\u4e2d\u65ad\u64cd\u4f5c，\u53ef\u4ee5\u5728\u7b49\u5f85\u9501\u7684\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u4e2d\u65ad\u54cd\u5e94\u3002\u652f\u6301\u83b7\u53d6\u6240\u7684\u8fc7\u7a0b\u4e2d\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4，\u53ef\u4ee5\u8bbe\u7f6e\u6210\u516c\u5e73\u9501，\u53ef\u4ee5\u68c0\u67e5\u9501\u7684\u72b6\u6001\u3002ReentrantLock \u53ef\u4ee5\u901a\u8fc7 Condition \u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u6761\u4ef6\u53d8\u91cf\u63a7\u5236：\u4e00\u4e2a Lock \u53ef\u521b\u5efa\u591a\u4e2a Condition，\u6bcf\u4e2a Condition \u6709\u72ec\u7acb\u7b49\u5f85\u961f\u5217，\u53ef\u6309\u6761\u4ef6\u7cbe\u786e\u5524\u9192，\u907f\u514d\u65e0\u6548\u5524\u9192\u3002<\/p>\n
ReentrantLock lock = new ReentrantLock(); \/\/ \u4ed3\u5e93\u5927\u95e8\u7684\u552f\u4e00\u94a5\u5319
\nCondition notFull = lock.newCondition(); \/\/ "\u8d27\u67b6\u4e0d\u6ee1"\u7b49\u5019\u5ba4（\u751f\u4ea7\u8005\u7b49\u8fd9）
\nCondition notEmpty = lock.newCondition(); \/\/ "\u8d27\u67b6\u6709\u8d27"\u7b49\u5019\u5ba4（\u6d88\u8d39\u8005\u7b49\u8fd9）<\/p>\n
lock.lock(); \/\/ \u2460 \u62ff\u94a5\u5319\u8fdb\u95e8
\ntry {
\n while (\u8d27\u67b6\u6ee1) { \/\/ \u2461 \u770b\u770b\u8d27\u67b6\u6ee1\u6ca1\u6ee1
\n notFull.await(); \/\/ \u2462 \u6ee1\u4e86 \u2192 \u53bb"\u4e0d\u6ee1"\u7b49\u5019\u5ba4\u7b49，\u540c\u65f6\u628a\u94a5\u5319\u4ea4\u51fa\u53bb
\n }
\n \u653e\u5165\u5143\u7d20; \/\/ \u2463 \u4e0d\u6ee1 \u2192 \u653e\u4e00\u4e2a\u8d27
\n notEmpty.signal(); \/\/ \u2464 \u558a\u9192"\u6709\u8d27"\u7b49\u5019\u5ba4\u91cc\u7684\u4e00\u4e2a\u6d88\u8d39\u8005
\n} finally {
\n lock.unlock(); \/\/ \u2465 \u51fa\u95e8，\u4ea4\u51fa\u94a5\u5319
\n}<\/p>\n
lock.lock(); \/\/ \u2460 \u62ff\u94a5\u5319\u8fdb\u95e8
\ntry {
\n while (\u8d27\u67b6\u7a7a) { \/\/ \u2461 \u770b\u770b\u8d27\u67b6\u7a7a\u6ca1\u7a7a
\n notEmpty.await(); \/\/ \u2462 \u7a7a\u4e86 \u2192 \u53bb"\u6709\u8d27"\u7b49\u5019\u5ba4\u7b49，\u4ea4\u51fa\u94a5\u5319
\n }
\n \u53d6\u51fa\u5143\u7d20; \/\/ \u2463 \u6709\u8d27 \u2192 \u53d6\u4e00\u4e2a
\n notFull.signal(); \/\/ \u2464 \u558a\u9192"\u4e0d\u6ee1"\u7b49\u5019\u5ba4\u91cc\u7684\u4e00\u4e2a\u751f\u4ea7\u8005
\n} finally {
\n lock.unlock(); \/\/ \u2465 \u51fa\u95e8\u4ea4\u94a5\u5319
\n}<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0synchronized \u548c ReentrantLock \u90fd\u80fd\u5b9e\u73b0\u751f\u4ea7\u8005-\u6d88\u8d39\u8005，\u903b\u8f91\u5b8c\u5168\u4e00\u6837，\u6838\u5fc3\u533a\u522b\u5728\u4e8e\u7b49\u5f85\u961f\u5217\u7684\u6570\u91cf：synchronized \u53ea\u6709\u4e00\u4e2a\u7b49\u5f85\u961f\u5217，\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u90fd\u7761\u5728\u4e00\u8d77，\u6ca1\u6cd5\u533a\u5206\u8be5\u5524\u9192\u8c01，\u6240\u4ee5\u53ea\u80fd\u7528 notifyAll() \u628a\u6240\u6709\u4eba\u90fd\u558a\u9192，\u88ab\u8bef\u5524\u9192\u7684\u7ebf\u7a0b\u53d1\u73b0\u6761\u4ef6\u4e0d\u6ee1\u8db3\u53c8\u5f97\u7761\u56de\u53bb，\u4ea7\u751f\u65e0\u6548\u5524\u9192；\u800c ReentrantLock \u53ef\u4ee5\u521b\u5efa\u591a\u4e2a Condition，\u7ed9\u751f\u4ea7\u8005\u3001\u6d88\u8d39\u8005\u5404\u5efa\u4e00\u4e2a\u72ec\u7acb\u961f\u5217，\u653e\u8d27\u53ea signal \u6d88\u8d39\u8005\u3001\u53d6\u8d27\u53ea signal \u751f\u4ea7\u8005，\u7cbe\u51c6\u5524\u9192\u8be5\u9192\u7684\u7ebf\u7a0b，\u6548\u7387\u66f4\u9ad8\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 volatile \u5173\u952e\u5b57\u901a\u5e38\u88ab\u53eb\u505a\u8f7b\u91cf\u7ea7\u7684 synchronized，\u4e0d\u9700\u8981\u83b7\u53d6\u9501\u548c\u91ca\u653e\u9501，\u4f46\u662f\u53ea\u80fd\u4fee\u9970\u53d8\u91cf，\u4e0d\u80fd\u7528\u4e8e\u65b9\u6cd5\u548c\u4ee3\u7801\u5757\u3002\u53ef\u4ee5\u4fdd\u8bc1\u53d8\u91cf\u7684\u5185\u5b58\u53ef\u89c1\u6027\u548c\u9632\u6b62\u6307\u4ee4\u91cd\u6392\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u4fdd\u8bc1\u53ef\u89c1\u6027：\u5f53\u5bf9\u975e volatile \u53d8\u91cf\u8fdb\u884c\u8bfb\u5199\u7684\u65f6\u5019，\u6bcf\u4e2a\u7ebf\u7a0b\u5148\u4ece\u4e3b\u5185\u5b58\u62f7\u8d1d\u4e00\u4efd\u5230\u5de5\u4f5c\u5185\u5b58\u4e2d，\u6bcf\u4e2a\u7ebf\u7a0b\u5185\u5bf9\u8be5\u53d8\u91cf\u7684\u4fee\u6539\u5728\u88ab\u540c\u6b65\u5230\u4e3b\u5185\u5b58\u4e4b\u524d，\u5176\u4ed6\u7684\u7ebf\u7a0b\u662f\u4e0d\u53ef\u89c1\u7684\u3002\u88ab volatile \u4fee\u9970\u4e4b\u540e，\u5e95\u5c42\u662f\u901a\u8fc7\u6c47\u7f16 lock \u524d\u7f00\u6307\u4ee4，\u4f1a\u5c06\u5f53\u524d\u5904\u7406\u5668\u7f13\u5b58\u884c\u7acb\u5373\u5199\u56de\u5230\u4e3b\u5185\u5b58\u4e2d，\u7136\u540e\u8be5\u64cd\u4f5c\u4f1a\u4f7f\u5f97\u5176\u4ed6 CPU \u7f13\u5b58\u4e2d\u7f13\u5b58\u4e86\u8be5\u5185\u5b58\u5730\u5740\u7684\u6570\u636e\u65e0\u6548，\u7136\u540e\u5176\u4ed6 CPU \u518d\u53bb\u4e3b\u5185\u5b58\u4e2d\u53ca\u65f6\u7684\u83b7\u53d6\u6700\u65b0\u503c（\u7f13\u5b58\u4e00\u81f4\u6027\u534f\u8bae）\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u7981\u6b62\u6307\u4ee4\u91cd\u6392：\u6307\u4ee4\u91cd\u6392\u5e8f\u662f JVM \u63d0\u5347\u7a0b\u5e8f\u8fd0\u884c\u6548\u7387，\u5728\u4e0d\u5f71\u54cd\u5355\u7ebf\u7a0b\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c（as-if-serial）\u4ee5\u53ca JMM \u7684\u8de8\u7ebf\u7a0b\u8bed\u4e49\u4e0d\u53d8\u7ea6\u675f（happens-before），\u63d0\u9ad8\u5e76\u884c\u5ea6\u7684\u65b9\u6cd5\u3002volatile \u6307\u4ee4\u4f1a\u7981\u6b62\u6307\u4ee4\u91cd\u6392\u5e8f，\u4f7f\u7528\u6c47\u7f16 lock \u524d\u7f00\u6307\u4ee4，\u5728\u786c\u4ef6\u7ea7\u522b\u5df2\u7ecf\u5b9e\u73b0\u597d\u4e86，\u5728\u8bfb\u5199\u64cd\u4f5c\u6307\u4ee4\u7684\u524d\u540e\u4f1a\u63d2\u5165\u5185\u5b58\u5c4f\u969c，\u4f7f\u5176\u548c\u524d\u540e\u7684\u4ee3\u7801\u4e0d\u80fd\u8fdb\u884c\u91cd\u6392\u5e8f\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 synchronized \u9501\u7528\u6765\u63d0\u4f9b\u7ebf\u7a0b\u7684\u540c\u6b65\u673a\u5236，\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u8fdb\u5165\u4e00\u4e2a\u7531 synchronized \u9501\u4fee\u9970\u7684\u4ee3\u7801\u5757\u6216\u65b9\u6cd5\u7684\u65f6\u5019，\u8fd9\u4e2a\u7ebf\u7a0b\u4f1a\u83b7\u53d6\u5230\u8fd9\u4e2a\u9501\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\u9501（monitor），\u786e\u4fdd\u540c\u4e00\u65f6\u95f4\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u6267\u884c\u8fd9\u6bb5\u4ee3\u7801\u6216\u8005\u65b9\u6cd5，\u5b9e\u73b0\u4e86\u4e00\u81f4\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 volatile \u7528\u6765\u4fee\u9970\u53d8\u91cf，\u53ef\u4ee5\u4fdd\u8bc1\u53d8\u91cf\u7684\u6709\u5e8f\u6027\u548c\u53ef\u89c1\u6027\u3002\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u5bf9\u53d8\u91cf\u8fdb\u884c\u4e86\u4fee\u6539，\u5176\u4f59\u7684\u7ebf\u7a0b\u53ef\u4ee5\u7acb\u523b\u77e5\u9053，\u7136\u540e\u83b7\u53d6\u5230\u4e3b\u5185\u5b58\u4e2d\u53d8\u91cf\u7684\u6700\u65b0\u503c\u3002volatile \u53ef\u4ee5\u9632\u6b62 JVM \u5bf9\u88ab\u4fee\u9970\u6307\u4ee4\u7684\u91cd\u6392\u5e8f\u3002\u4f46\u662f，volatile \u4e0d\u80fd\u4fdd\u8bc1\u539f\u5b50\u6027\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0synchronized \u5173\u952e\u5b57\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u4fee\u9970\u7684\u4ee3\u7801\u5757\u4e2d\u7684\u4ee3\u7801\u7684\u539f\u5b50\u6027，\u4fdd\u8bc1\u5176\u5728\u6267\u884c\u671f\u95f4\u4e0d\u88ab\u5176\u4ed6\u7ebf\u7a0b\u6253\u65ad\u3002volatile \u5173\u952e\u5b57\u53ea\u80fd\u4fdd\u8bc1\u4fee\u9970\u7684\u53d8\u91cf\u5728\u4e0d\u540c\u7ebf\u7a0b\u4e4b\u95f4\u7684\u53ef\u89c1\u6027\u548c\u6709\u5e8f\u6027，\u5bf9\u4e8e\u590d\u5408\u64cd\u4f5c（\u81ea\u589e，\u81ea\u51cf）\u7b49\u4e0d\u80fd\u4fdd\u8bc1\u539f\u5b50\u6027\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0volatile \u8981\u6bd4\u00a0synchronized \u7684\u6027\u80fd\u8981\u597d，\u56e0\u4e3a\u4e0d\u6d89\u53ca\u5e95\u5c42\u7684\u5bf9\u9501\u7684\u83b7\u53d6\u548c\u91ca\u653e\u7684\u64cd\u4f5c，\u4f46\u662f\u4ed6\u7684\u540c\u6b65\u7684\u7ea7\u522b\u4e5f\u6bd4\u8f83\u4f4e\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 lambda \u8868\u8fbe\u5f0f：\u5141\u8bb8\u4ee5\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u7f16\u5199\u533f\u540d\u51fd\u6570\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u65b0\u7684\u65e5\u671f API：\u5f15\u5165\u4e86 java.time\u00a0\u5305，\u63d0\u4f9b\u4e86\u5168\u65b0\u7684\u65e5\u671fAPI，\u6bd4\u5982 LocalDate，LocalDateTime，\u89e3\u51b3\u4e86\u4e4b\u524d\u51fa\u73b0\u7684\u95ee\u9898\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 Stream API：\u63d0\u4f9b\u4e86\u4e00\u79cd\u58f0\u660e\u5f0f\u7684\u65b9\u5f0f\u6765\u5bf9\u96c6\u5408\u8fdb\u884c\u5904\u7406\u7684\u64cd\u4f5c\u3002\u6bd4\u5982\u8fc7\u6ee4\u3001\u6620\u5c04\u7b49\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5728\u591a\u7ebf\u7a0b\u7684\u4efb\u52a1\u4e2d，\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u8981\u5360\u7528\u5185\u5b58\u548c CPU \u8d44\u6e90，\u5982\u679c\u4e0d\u52a0\u4ee5\u9650\u5236，\u4efb\u7531\u7ebf\u7a0b\u65e0\u9650\u7684\u521b\u5efa\u4e0b\u53bb，\u4f1a\u5bfc\u81f4\u5185\u5b58\u8d44\u6e90\u7684\u4e0d\u8db3\u3002\u901a\u8fc7\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u5982\u679c\u6709\u4e9b\u7ebf\u7a0b\u7684\u5b58\u6d3b\u65f6\u95f4\u77ed，\u4f46\u662f\u53c8\u4e0d\u5f97\u4e0d\u521b\u5efa\u8fd9\u4e2a\u7ebf\u7a0b，\u5c31\u53ef\u4ea4\u7ed9\u7ebf\u7a0b\u6c60\u6765\u7ba1\u7406，\u907f\u514d\u4e86\u91cd\u590d\u7684\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u9020\u6210\u7684\u8d44\u6e90\u7684\u6d88\u8017\u3002\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u521b\u5efa\u5e76\u7ba1\u7406\u4e00\u90e8\u5206\u7ebf\u7a0b，\u5f53\u6709\u4efb\u52a1\u5230\u6765\u7684\u65f6\u5019，\u5148\u653e\u5230\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217\u4e2d，\u7531\u7ebf\u7a0b\u6c60\u51b3\u5b9a\u7528\u54ea\u4e2a\u7a7a\u95f2\u7684\u7ebf\u7a0b\u53bb\u6267\u884c\u8fd9\u4e2a\u4efb\u52a1，\u5f53\u7ebf\u7a0b\u4e0d\u591f\u7684\u65f6\u5019，\u521b\u5efa\u4e00\u90e8\u5206\u7ebf\u7a0b\u6765\u6267\u884c\u4efb\u52a1，\u4f46\u662f\u8fd9\u4e2a\u6570\u91cf\u6536\u5230\u6700\u5927\u7ebf\u7a0b\u6570\u7684\u9650\u5236；\u5f53\u7ebf\u7a0b\u5197\u4f59\u7684\u65f6\u5019，\u5c31\u662f\u8d85\u51fa\u4e86\u7a7a\u95f2\u5b58\u6d3b\u65f6\u95f4，\u9500\u6bc1\u4e00\u90e8\u5206\u7ebf\u7a0b\u3002<\/p>\n
\u00a0 \u00a0 \u00a0 \u00a0 <\/span>corePoolSize \u6838\u5fc3\u7ebf\u7a0b\u6570：\u7ebf\u7a0b\u6c60\u4e2d\u957f\u671f\u5b58\u6d3b\u7684\u7ebf\u7a0b\u6570<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 maximumPoolSize \u6700\u5927\u7ebf\u7a0b\u6570：\u7ebf\u7a0b\u6c60\u4e2d\u5141\u8bb8\u521b\u5efa\u7684\u6700\u5927\u7684\u7ebf\u7a0b\u7684\u6570\u91cf，\u5f53\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u961f\u5217\u6ee1\u4e86\u7684\u6570\u91cf，\u8fd8\u80fd\u521b\u5efa\u591a\u5c11\u7ebf\u7a0b\u3002\u6700\u5927\u7ebf\u7a0b\u6570 = \u6838\u5fc3\u7ebf\u7a0b\u6570 + \u961f\u5217\u6ee1\u4e4b\u540e\u8fd8\u80fd\u989d\u5916\u521b\u5efa\u7684\u975e\u6838\u5fc3\u7ebf\u7a0b\u6570\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 keepAliveTime \u7a7a\u95f2\u7ebf\u7a0b\u5b58\u6237\u65f6\u95f4：\u5f53\u7ebf\u7a0b\u6570\u5927\u4e8e\u00a0corePoolSize \u65f6，\u7a7a\u95f2\u7ebf\u7a0b\u6700\u5927\u7684\u7b49\u5f85\u65b0\u4efb\u52a1\u7684\u5b58\u6d3b\u65f6\u95f4\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 timeUnit：\u4e0e\u00a0keepAliveTime \u4e00\u8d77\u4f7f\u7528，\u6307\u5b9a\u00a0keepAliveTime \u7684\u65f6\u95f4\u5355\u4f4d，\u5982\u79d2\u3001\u5206\u949f\u7b49\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 workQueue \u7ebf\u7a0b\u6c60\u5de5\u4f5c\u961f\u5217：\u7ebf\u7a0b\u6c60\u5b58\u653e\u4efb\u52a1\u7684\u961f\u5217，\u7528\u6765\u5b58\u50a8\u6240\u6709\u7684\u7ebf\u7a0b\u6c60\u7684\u6b63\u5728\u7b49\u5f85\u7684\u4efb\u52a1\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 ThreadFactory \u521b\u5efa\u7ebf\u7a0b\u7684\u5de5\u5382：\u7ebf\u7a0b\u6c60\u521b\u5efa\u7ebf\u7a0b\u7684\u65f6\u5019\u8c03\u7528\u7684\u5de5\u5382\u51fd\u6570，\u53ef\u4ee5\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u4f18\u5148\u7ea7\u3001\u7ebf\u7a0b\u547d\u540d\u89c4\u5219\u548c\u7ebf\u7a0b\u7c7b\u578b（\u5b88\u62a4\/\u975e\u5b88\u62a4）\u7b49\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 RejectExecutionHandler \u62d2\u7edd\u7b56\u7565：\u5f53\u7ebf\u7a0b\u6c60\u7684\u4efb\u52a1\u8d85\u8fc7\u4e86\u6700\u5927\u7ebf\u7a0b\u6570\u7684\u65f6\u5019，\u6267\u884c\u62d2\u7edd\u7684\u7b56\u7565\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 BIO\u3001NIO\u3001AIO \u662f java \u4e2d\u4e0d\u540c\u7684I\/O\u6a21\u5f0f，\u5728\u5904\u7406\u8f93\u5165\u8f93\u51fa\u64cd\u4f5c\u662f\u5bf9\u5e94\u4e0d\u540c\u7684\u52a8\u4f5c\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 BIO：\u963b\u585e\u5f0fI\/O\u6a21\u578b，\u5f53\u7ebf\u7a0b\u6b63\u5728\u6267\u884c\u7684\u65f6\u5019，\u9700\u8981\u8fdb\u884cI\/O\u64cd\u4f5c，\u4f46\u662f\u6570\u636e\u8fd8\u6ca1\u6709\u51c6\u5907\u597d，\u7ebf\u7a0b\u4f1a\u8fdb\u5165\u963b\u585e\u7b49\u5f85\u72b6\u6001，CPU \u8f6c\u53bb\u6267\u884c\u5176\u4ed6\u7684\u7ebf\u7a0b，\u6570\u636e\u51c6\u5907\u597d\u4e4b\u540e，\u786c\u4ef6\u8bbe\u5907\u4f1a\u53d1\u751f\u4e2d\u65ad，CPU\u4f1a\u54cd\u5e94\u8be5\u4e2d\u65ad，\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u5165\u5185\u6838\u6001，\u6267\u884c\u4e2d\u65ad\u5904\u7406\u7a0b\u5e8f，\u5185\u6838\u5904\u7406\u540e\u4f1a\u5524\u9192\u8be5\u7ebf\u7a0b，CPU\u518d\u6765\u7ee7\u7eed\u6267\u884c\u8fd9\u4e2a\u7ebf\u7a0b\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 NIO：\u975e\u963b\u585e\u5f0fI\/O\u6a21\u578b，\u4f7f\u7528\u4e86\u7f13\u51b2\u533a\u548c\u901a\u9053\u6765\u8fdb\u884c\u6570\u636e\u5904\u7406，\u63d0\u9ad8\u4e86I\/O\u64cd\u4f5c\u7684\u6548\u7387\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 AIO：\u5f02\u6b65I\/O\u6a21\u578b，\u7ebf\u7a0b\u53d1\u8d77I\/O\u64cd\u4f5c，\u4e0d\u7b49\u5f85，\u76f4\u63a5\u8fd4\u56de\u3002\u64cd\u4f5c\u7cfb\u7edf\u5728\u540e\u53f0\u5f02\u6b65\u7684\u6267\u884cI\/O\u64cd\u4f5c，\u64cd\u4f5c\u6267\u884c\u7ed3\u675f\u4e4b\u540e，\u518d\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u901a\u77e5\u7ebf\u7a0bI\/O\u64cd\u4f5c\u5df2\u5b8c\u6210\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 BIO \u9002\u5408\u4f4e\u5e76\u53d1\u3001\u8fde\u63a5\u5c11\u7684\u573a\u666f\u3002NIO \u9002\u5408\u9ad8\u5e76\u53d1\u3001\u8fde\u63a5\u91cf\u5927\u7684\u573a\u666f\u3002AIO \u9002\u5408\u6027\u80fd\u9700\u6c42\u6bd4\u8f83\u9ad8\u7684\u573a\u666f\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 spring \u63a7\u5236\u53cd\u8f6c，\u6838\u5fc3\u7684\u601d\u60f3\u662f\u8ba9\u5bf9\u8c61\u7684\u521b\u5efa\u548c\u4f9d\u8d56\u5173\u7cfb\u7531\u5bb9\u5668\u6765\u7ba1\u7406，\u4e0d\u662f\u6211\u4eec\u81ea\u5df1 new \u51fa\u6765\u7684，\u8fd9\u6837\u65b9\u4fbf\u7ba1\u7406\u4e5f\u7b80\u5316\u4e86\u5f00\u53d1\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u8fd9\u4e2a\u5bb9\u5668\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a Map，\u91cc\u9762\u5c01\u88c5\u597d\u4e86\u5404\u79cd\u5bf9\u8c61\u3002\u901a\u8fc7 DI \u4f9d\u8d56\u6ce8\u5165，spring \u5bb9\u5668\u53ef\u4ee5\u52a8\u6001\u7684\u5c06\u8fd9\u4e9b\u4f9d\u8d56\u6ce8\u5165\u5230\u9700\u8981\u4ed6\u4eec\u7684\u5bf9\u8c61\u5f53\u4e2d\u3002\u800c\u4e0d\u9700\u8981\u5bf9\u8c61\u81ea\u5df1\u53bb\u521b\u5efa\u6216\u5bfb\u627e\u4f9d\u8d56\u3002\u6781\u5927\u7a0b\u5ea6\u4e0a\u7b80\u5316\u4e86\u5e94\u7528\u7684\u5f00\u53d1\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u524d\u4e60\u60ef\u7528 springboot \u6ce8\u89e3\u914d\u7f6e\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u4f9d\u8d56\u3002\u4f7f\u7528\u914d\u7f6e\u53ef\u4ee5\u544a\u8bc9 spring \u5bb9\u5668\u5982\u4f55\u521b\u5efa，\u5982\u4f55\u548c\u7ba1\u7406\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u9762\u5411\u5207\u9762\u7f16\u7a0b\u5229\u7528\u4e00\u79cd\u201c\u6a2a\u5207\u201d\u7684\u6280\u672f，\u5c06\u90a3\u4e9b\u5f71\u54cd\u4e86\u591a\u4e2a\u7c7b\u7684\u516c\u5171\u884c\u4e3a\u5c01\u88c5\u5230\u4e00\u4e2a\u5bf9\u8c61\u4e2d，\u5e76\u628a\u8fd9\u4e2a\u5bf9\u8c61\u53eb\u505a\u201c\u5207\u9762\u201d，\u5c06\u90a3\u4e9b\u4e0e\u5177\u4f53\u4e1a\u52a1\u65e0\u5173\u7684\u4fe1\u606f\u62bd\u53d6\u51fa\u6765，\u7edf\u4e00\u7ba1\u7406\u3002\u53ef\u4ee5\u51cf\u5c11\u7cfb\u7edf\u4e2d\u7684\u91cd\u590d\u4ee3\u7801，\u964d\u4f4e\u6a21\u5757\u4e4b\u95f4\u7684\u8026\u5408\u5ea6，\u589e\u52a0\u4e86\u7cfb\u7edf\u7684\u53ef\u64cd\u4f5c\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 spring \u4e2d\u7684 AOP\u52a8\u6001\u4ee3\u7406\u7531 IOC\u5bb9\u5668\u8d1f\u8d23\u521b\u5efa\u548c\u7ba1\u7406\u3002AOP\u52a8\u6001\u4ee3\u7406\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u76ee\u6807\u5bf9\u8c61\u548c\u5207\u9762\u5bf9\u8c61\u6784\u9020\u52a8\u6001\u4ee3\u7406\u3002spring \u5bf9\u8c61\u9ed8\u8ba4\u4f7f\u7528JDK\u52a8\u6001\u4ee3\u7406\u6765\u521b\u5efa\u52a8\u6001\u4ee3\u7406，\u8fd9\u6837\u53ef\u4ee5\u4e3a\u4efb\u610f\u4e00\u4e2a\u63a5\u53e3\u5bf9\u8c61\u5b9e\u4f8b\u521b\u5efa\u52a8\u6001\u4ee3\u7406\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5177\u4f53\u5b9e\u73b0 AOP \u7684\u6b65\u9aa4\u662f：\u9996\u5148\u5b9a\u4e49\u76ee\u6807\u5bf9\u8c61，\u7136\u540e\u5b9a\u4e49\u5207\u5165\u70b9，\u4e00\u4e2a\u5207\u5165\u70b9\u53ef\u4ee5\u6a2a\u5207\u591a\u4e2a\u76ee\u6807\u5bf9\u8c61\u4e2d\u7684\u591a\u4e2a\u65b9\u6cd5\u3002\u6700\u540e\u5b9a\u4e49\u589e\u5f3a\u5904\u7406，\u628a\u8fd9\u4e9b\u903b\u8f91\u7ec7\u5165\u5230\u76ee\u6807\u65b9\u6cd5\u4e2d，\u51b3\u5b9a\u8fd9\u6bb5\u4ee3\u7801\u5728\u76ee\u6807\u65b9\u6cd5\u6267\u884c\u7684\u524d\u3001\u540e\u3001\u6216\u8005\u73af\u7ed5\u65f6\u8fd0\u884c\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5728 spring \u4e2d，\u90a3\u4e9b\u7531 spring \u7ba1\u7406\u7684\u5bf9\u8c61\u79f0\u4e3a bean，bean \u7684\u4f5c\u7528\u57df\u51b3\u5b9a\u4e86\u8fd9\u4e2a bean \u5728\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u751f\u547d\u5468\u671f\u548c\u53ef\u89c1\u8303\u56f4\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5355\u4f8b\u6a21\u5f0f：\u9ed8\u8ba4\u7684\u4f5c\u7528\u57df，\u5f53\u4e00\u4e2a bean \u7684\u4f5c\u7528\u57df\u4e3a singleton \u7684\u65f6\u5019，\u6574\u4e2a IOC \u5bb9\u5668\u4e2d\u53ea\u6709\u4e00\u4e2a bean \u7684\u5b9e\u4f8b，\u6240\u6709\u5bf9 bean \u7684\u8bf7\u6c42，\u53ea\u8981 id \u4e0e\u8be5 bean \u7684\u5b9a\u4e49\u76f8\u5339\u914d，\u90fd\u662f\u4f7f\u7528\u8fd9\u4e00\u4e2a\u5b9e\u4f8b\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u539f\u578b\u6a21\u5f0f：\u5f53\u4e00\u4e2a bean \u7684\u4f5c\u7528\u57df\u4e3a prototype \u7684\u65f6\u5019，\u662f\u539f\u578b\u5b9e\u4f8b，\u8868\u793a\u4e00\u4e2a bean \u5b9a\u4e49\u5bf9\u5e94\u7684\u5b9e\u4f8b\u53ef\u4ee5\u6709\u591a\u4e2a\u5bf9\u8c61\u5b9e\u4f8b\u3002\u6bcf\u6b21\u5bf9\u8be5 bean \u7684\u8bf7\u6c42\u90fd\u4f1a\u8fd4\u56de\u4e0d\u540c\u7684\u5b9e\u4f8b\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u8bf7\u6c42\u6a21\u5f0f：\u4e00\u4e2a HTTP \u8bf7\u6c42\u5bf9\u5e94\u4e00\u4e2a\u4e0d\u540c\u7684 bean \u5b9e\u4f8b，\u8fd9\u4e2a bean \u53ea\u5728\u8bf7\u6c42\u671f\u95f4\u597d\u7528\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u4f1a\u8bdd\u6a21\u5f0f：\u4e00\u4e2a HTTP \u4f1a\u8bdd\u5bf9\u5e94\u4e00\u4e2a bean\u00a0\u7684\u5b9e\u4f8b，\u751f\u547d\u5468\u671f\u548c\u4f1a\u8bdd\u7684\u751f\u547d\u5468\u671f\u76f8\u540c\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 spring bean \u7684\u751f\u547d\u5468\u671f\u5c31\u662f\u4e00\u4e2a bean \u4ece\u521b\u5efa\u5230\u9500\u6bc1\u7684\u5b8c\u6574\u7684\u8fc7\u7a0b\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 1\u3001\u5b9e\u4f8b\u5316 bean：\u8c03\u7528\u9ed8\u8ba4\u6784\u9020\u65b9\u6cd5\u6216\u8005\u5de5\u5382\u65b9\u6cd5\u521b\u5efa\u5b9e\u4f8b\u5316 bean\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 2\u3001\u4f9d\u8d56\u6ce8\u5165：\u5bb9\u5668\u6ce8\u5165 bean \u7684\u5c5e\u6027，\u8fd9\u4e9b\u5c5e\u6027\u53ef\u80fd\u662f\u5176\u4ed6 bean \u7684\u5f15\u7528，\u4e5f\u53ef\u80fd\u662f\u666e\u901a\u7c7b\u578b\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 3\u3001\u68c0\u67e5 Aware \u63a5\u53e3\u5e76\u8bbe\u7f6e\u76f8\u5173\u7684\u4f9d\u8d56：\u5982\u679c\u4e00\u4e2a bean \u5b9e\u73b0\u4e86 BeanNameAware \u6216\u8005 BeanFactoryAware \u63a5\u53e3，\u5bb9\u5668\u4f1a\u8c03\u7528\u76f8\u5173\u7684\u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 4\u3001BeanPostProsscer：\u5728Bean\u7684\u5c5e\u6027\u8bbe\u7f6e\u4e4b\u540e，Spring\u4f1a\u8c03\u7528\u6240\u6709\u5b9e\u73b0 BeanPostProcessor \u63a5\u53e3\u7684 postProcessorBeforeInitialization() \u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0\u00a05\u3001\u5982\u679cBean\u5b9e\u73b0\u4e86 InitialingBean \u63a5\u53e3，\u5bb9\u5668\u4f1a\u8c03\u7528\u5176afterPropertiesSet\u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 6\u3001\u521d\u59cb\u5316Bean：\u5982\u679cBean\u5b9a\u4e49\u4e86 init-method，\u5bb9\u5668\u4e5f\u4f1a\u8c03\u7528\u8fd9\u4e2a\u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 7\u3001BeanPostProcessor\u7684\u7b2c\u4e8c\u6b21\u8c03\u7528：\u5bb9\u5668\u4f1a\u518d\u6b21\u8c03\u7528\u6240\u6709\u6ce8\u518c\u7684 BeanPostProcessor \u7684postProcessorAfterInitialization() \u65b9\u6cd5，\u8fd9\u6b21\u662f\u5728Bean\u521d\u59cb\u5316\u4e4b\u540e\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 8\u3001\u4f7f\u7528Bean：\u6b64\u65f6，Bean\u5df2\u7ecf\u51c6\u5907\u597d\u4e86，\u53ef\u4ee5\u88ab\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u4e86\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 9\u3001\u5904\u7406 DisposableBean ：\u5f53\u5bb9\u5668\u5173\u95ed\u65f6，\u5982\u679cBean\u5b9e\u73b0\u4e86DisposableBean\u63a5\u53e3，\u5bb9\u5668\u4f1a\u8c03\u7528\u5176destroy\u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 10\u3001Bean\u9500\u6bc1：\u6700\u540e，Bean\u88abSpring\u5bb9\u5668\u9500\u6bc1，\u7ed3\u675f\u4e86\u5b83\u7684\u751f\u547d\u5468\u671f\u3002\u5982\u679cBean\u5b9a\u4e49\u4e86destroy-method，\u5bb9\u5668\u4e5f\u4f1a\u8c03\u7528\u8fd9\u4e2a\u65b9\u6cd5\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u4e24\u4e2a\u6216\u4e24\u4e2a\u4ee5\u4e0a\u7684 bean \u4e92\u76f8\u6301\u6709\u5bf9\u65b9\u7684\u4f9d\u8d56\u7684\u65f6\u5019，\u6bd4\u5982 bean A \u4f9d\u8d56\u4e8e bean B，\u540c\u65f6 bean B \u4e5f\u4f9d\u8d56\u4e8e bean A，\u5c31\u4f1a\u5bfc\u81f4\u5faa\u73af\u4f9d\u8d56，\u53ef\u80fd\u5bfc\u81f4\u5bb9\u5668\u521b\u5efa\u5bf9\u8c61\u5931\u8d25\u3002<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u53ef\u4ee5\u7ed9 bean \u6253\u6807\u7b7e\u7528\u6765\u5224\u65ad\u662f\u5426\u53d1\u751f\u4e86\u5faa\u73af\u4f9d\u8d56，\u6bd4\u5982 bean A \u5728\u521b\u5efa\u7684\u65f6\u5019，\u4f9d\u8d56\u4e8e bean B，\u7136\u540e\u53bb\u521b\u5efa B，\u5728\u521b\u5efa B \u7684\u65f6\u5019，\u53d1\u73b0\u53c8\u9700\u8981\u521b\u5efa A，\u4e8e\u662f\u53bb\u521b\u5efa A，\u4f46\u662f\u53d1\u73b0 A \u6b64\u65f6\u6b63\u5728\u88ab\u6807\u8bb0\u521b\u5efa\u4e2d，\u8bf4\u660e\u53d1\u751f\u4e86\u5faa\u73af\u4f9d\u8d56\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u4f7f\u7528\u4e09\u7ea7\u7f13\u5b58\u6765\u89e3\u51b3\u5faa\u73af\u4f9d\u8d56\u95ee\u9898\u3002\u9996\u5148，\u5f53\u4e00\u4e2a bean \u5bf9\u8c61\u5b9e\u4f8b\u5316\u597d\u4e86\u4e4b\u540e，spring \u4f1a\u6ce8\u518c\u4e00\u4e2a singletonFactory \u5230\u4e09\u7ea7\u7f13\u5b58（\u4e0d\u540c\u7684 bean \u5bf9\u5e94\u5404\u81ea\u7684\u81ea\u5df1\u7684 bean \u5de5\u5382），\u4e00\u65e6\u6709\u5176\u4ed6\u7684 bean \u5728\u9700\u8981\u5f53\u524d bean \u7684\u4f9d\u8d56\u7684\u65f6\u5019，\u53ef\u4ee5\u5236\u9020\u8fd8\u6ca1\u6709\u521d\u59cb\u5316\u7684 bean（\u4e0d\u5b8c\u5584\u7684\u4ee3\u7406\u5bf9\u8c61）\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u5f53\u4e3a\u8be5 bean \u586b\u5145\u5c5e\u6027\u7684\u65f6\u5019，\u5982\u679c\u4f9d\u8d56\u5176\u4ed6\u7684bean，\u800c\u90a3\u4e2a bean \u53c8\u4f9d\u8d56\u5f53\u524d\u7684 bean，spring \u5c31\u4f1a\u4ece\u5c1d\u8bd5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u5f53\u524d bean，\u4f18\u5148\u4ece\u4e00\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6，\u53d1\u73b0\u6ca1\u6709，\u5c31\u4ee3\u8868 A\u00a0\u8fd8\u6ca1\u6709\u6210\u54c1\u53ef\u7528，\u4e8e\u662f\u8f6c\u53bb\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6，\u53d1\u73b0\u4e5f\u6ca1\u6709，\u4e8e\u662f\u53bb\u4e09\u7ea7\u7f13\u5b58\u4e2d\u627e\u5230\u7f13\u5b58\u5de5\u5382，\u751f\u6210\u65e9\u671f\u7684\u5f15\u7528\u653e\u5165\u4e8c\u7ea7\u7f13\u5b58，\u4f9b\u5176\u4ed6\u7684 bean \u6ce8\u5165\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u00a0 \u7b49\u5230\u8be5 bean \u7684\u5c5e\u6027\u586b\u5145\u5b8c\u6210，\u521d\u59cb\u5316\u5b8c\u6bd5\u4e4b\u540e，spring \u4f1a\u628a\u8fd9\u4e2a bean \u521b\u5efa\u4ee3\u7406\u5bf9\u8c61\u653e\u5230\u4e00\u7ea7\u7f13\u5b58\u4e2d，\u540c\u65f6\u6e05\u7406\u4e8c\u7ea7\u7f13\u5b58\u548c\u4e09\u7ea7\u7f13\u5b58\u4e2d\u7684\u65e9\u671f\u5f15\u7528\u3002<\/p>\n 1\u3001String\u3001StringBuffer\u3001StringBuilder \u7684\u533a\u522bString\u3001StringBUffer\u3001StringBffer\u90fd\u662fjava\u4e2d\u7684\u5904\u7406\u5b57\u7b26\u4e32\u7684\u7c7b\u3002String\u5185\u90e8\u7684\u5b57\u7b26\u6570\u7ec4\u90fd\u4f1a\u7528 final \u5173\u952e\u5b57\u8fdb\u884c\u4fee\u9970，\u6bcf\u5f53\u5bf9 String \u5bf9\u8c61\u8fdb\u884c\u4fee\u6539\u7684\u65f6\u5019，\u90fd\u4f1a\u5728\u5185\u5b58\u4e2d\u65b0\u5f00\u8f9f\u51fa\u7a7a\u95f4\u521b\u5efa\u51fa\u65b0\u7684\u5bf9\u8c61，\u65e7\u7684 String \u5bf9\u8c61\u5c31\u4f1a\u9891\u7e41\u7684\u88ab JVM \u56de\u6536，\u9891\u7e41\u89e6\u53d1\u5783\u573e\u56de\u6536，\u5bb9\u6613\u5f15\u8d77\u5185\u5b58\u6296\u52a8\u73b0\u8c61\u3002S<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,190],"topic":[],"class_list":["post-120906","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-190"],"yoast_head":"\n28\u3001BIO\u3001NIO\u3001AIO \u7684\u533a\u522b<\/h2>\n
29\u3001JVM \u65b9\u9762\u5148\u8df3\u8fc7<\/h2>\n
30\u3001\u5bf9 Spring \u4e2d IOC \u7684\u7406\u89e3<\/h2>\n
31\u3001\u5bf9 Spring \u4e2d AOP \u7684\u4e86\u89e3<\/h2>\n
32\u3001Bean \u7684\u4f5c\u7528\u57df<\/h2>\n
33\u3001Bean \u7684\u751f\u547d\u5468\u671f<\/h2>\n
34\u3001Spring\u5faa\u73af\u4f9d\u8d56\u662f\u600e\u4e48\u89e3\u51b3\u7684<\/h2>\n
35\u3001Spring \u4e2d\u7528\u5230\u4e86\u90a3\u4e9b\u8bbe\u8ba1\u6a21\u5f0f<\/h2>\n
36\u3001\u63cf\u8ff0\u4e00\u4e0bSpringMVC\u7684\u6267\u884c\u6d41\u7a0b<\/h2>\n
37\u3001SpringBoot Starter\u6709\u4ec0\u4e48\u7528<\/h2>\n
38\u3001SpringBoot\u7684\u5e38\u7528\u6ce8\u89e3<\/h2>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"