{"id":502,"date":"2019-03-08T14:06:16","date_gmt":"2019-03-08T06:06:16","guid":{"rendered":"https:\/\/fick707.com\/?p=502"},"modified":"2019-03-08T14:06:33","modified_gmt":"2019-03-08T06:06:33","slug":"java-collection-impls-thread-safe","status":"publish","type":"post","link":"https:\/\/fick707.com\/?p=502","title":{"rendered":"java\u96c6\u5408\u7684\u7ebf\u7a0b\u5b89\u5168\u6027"},"content":{"rendered":"<p>\u8f6c\u8f7d\u81ea\uff1ahttps:\/\/blog.csdn.net\/qq_34302506\/article\/details\/79514920<\/p>\n<div>1\u3001\u96c6\u5408\u548cMap<\/div>\n<div>\u00a0 \u00a0 \u4e0b\u56fe\u662fJava\u96c6\u5408\u7684Collection\u96c6\u5408\u4f53\u7cfb\u7684\u7ee7\u627f\u6811\uff1a<\/div>\n<div><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160122232626698?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/div>\n<div>\u00a0 \u00a0 \u4e0b\u56fe\u662fJava\u7684Map\u4f53\u7cfb\u7684\u7ee7\u627f\u6811\uff1a<\/div>\n<div><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160122232653768?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/div>\n<div><\/div>\n<div><\/div>\n<div>\u00a0 \u00a0 \u5bf9\u4e8eSet\u3001List\u3001Queue\u548cMap\u56db\u79cd\u96c6\u5408\uff0c\u6700\u5e38\u7528\u7684\u662fHashSet\u3001TreeSet\u3001ArrayList\u3001ArrayQueue\u3001LinkedList\u548cHashMap\u3001TreeMap\u7b49\u5b9e\u73b0\u7c7b\u3002<\/div>\n<div>\u00a0 \u00a0\u00a0\u5176\u4e2dVector\u3001HashTable\u3001Properties\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u5176\u4e2dArrayList\u3001LinkedList\u3001HashSet\u3001TreeSet\u3001HashMap\u3001TreeMap\u7b49\u90fd\u662f\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u3002\uff08\u7ebf\u7a0b\u4e0d\u5b89\u5168\u662f\u6307\uff1a\u5f53\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u540c\u4e00\u4e2a\u96c6\u5408\u6216Map\u65f6\uff0c\u5982\u679c\u6709\u8d85\u8fc7\u4e00\u4e2a\u7ebf\u7a0b\u4fee\u6539\u4e86ArrayList\u96c6\u5408\uff0c\u5219\u7a0b\u5e8f\u5fc5\u987b\u624b\u52a8\u4fdd\u8bc1\u8be5\u96c6\u5408\u7684\u540c\u6b65\u6027\u3002\uff09<\/div>\n<div><\/div>\n<div>2\u3001\u5305\u88c5\u7ebf\u7a0b\u4e0d\u5b89\u5168\u7684\u96c6\u5408<\/div>\n<div>\u00a0 \u00a0 \u5f53\u591a\u4e2a\u5e76\u53d1\u5411\u8fd9\u4e9b\u96c6\u5408\u4e2d\u5b58\u3001\u53d6\u5143\u7d20\u65f6\uff0c\u5c31\u53ef\u80fd\u4f1a\u7834\u574f\u8fd9\u4e9b\u96c6\u5408\u7684\u6570\u636e\u5b8c\u6574\u6027\u3002<\/div>\n<div>\u00a0 \u00a0 \u5982\u679c\u7a0b\u5e8f\u4e2d\u6709\u591a\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u8bbf\u95ee\u4ee5\u4e0a\u8fd9\u4e9b\u96c6\u5408\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528Collections\u63d0\u4f9b\u7684\u7c7b\u65b9\u6cd5\u628a\u8fd9\u4e9b\u96c6\u5408\u5305\u88c5\u6210\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\u3002Collections\u63d0\u4f9b\u4e86\u5982\u4e0b\u51e0\u4e2a\u9759\u6001\u65b9\u6cd5\u3002<\/div>\n<div>\n<ul>\n<li>&lt;T&gt; Collection&lt;T&gt; synchronizedCollection(Collection&lt;T&gt; c): \u8fd4\u56de\u6307\u5b9acollection \u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684collection\u3002<\/li>\n<li>static &lt;T&gt; List&lt;T&gt; synchronizedList(List&lt;T&gt; list): \u8fd4\u56de\u6307\u5b9aList\u5bf9\u8c61\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684List \u5bf9\u8c61\u3002<\/li>\n<li>static &lt;K, V&gt; Map&lt;K, V&gt; synchronizedMap(Map&lt;K, V&gt; m): \u8fd4\u56de\u6307\u5b9aMap\u5bf9\u8c61\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684Map\u5bf9\u8c61\u3002<\/li>\n<li>static &lt;T&gt; Set&lt;T&gt; synchronizedSet(Set&lt;T&gt; s): \u8fd4\u56de\u6307\u5b9aSet\u5bf9\u8c61\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684Set\u5bf9\u8c61\u3002<\/li>\n<li>static &lt;K, V&gt; SortedMap&lt;K, V&gt; synchronizedSortedMap(SortedMap&lt;K, V&gt; m): \u8fd4\u56de\u6307\u5b9aSortedMap\u5bf9\u8c61\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684SortedMap\u5bf9\u8c61\u3002<\/li>\n<li>static &lt;T&gt; SortedSet&lt;T&gt; synchronizedSortedSet(SortedSet&lt;T&gt; s): \u8fd4\u56de\u6307\u5b9aSortedSet\u5bf9\u8c61\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5b89\u5168\u7684SortedSet\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<div>\u00a0 \u00a0 \u4f8b\u5982\u9700\u8981\u5728\u591a\u7ebf\u7a0b\u91cc\u4f7f\u7528\u7ebf\u7a0b\u5b89\u5168\u7684HashMap\u5bf9\u8c61(\u5982\u679c\u9700\u8981\u628a\u67d0\u4e2a\u96c6\u5408\u5305\u88c5\u6210\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\uff0c\u5219\u5e94\u8be5\u5728\u521b\u5efa\u4e4b\u540e\u7acb\u5373\u5305\u88c5\uff0c\u5982\u4e0b\u7a0b\u5e8f\u6240\u793a)\uff0c\u5219\u53ef\u4ee5\u91c7\u7528\u5982\u4e0b\u4ee3\u7801\uff1a<\/div>\n<\/div>\n<div>\u00a0 \u00a0 \/\/ \u4f7f\u7528Collections \u7684 synchronizedMap \u65b9\u6cd5\u5c06\u4e00\u4e2a\u666e\u901a\u7684HashMap\u5305\u88c5\u6210\u7ebf\u7a0b\u5b89\u5168\u7684\u7c7b<\/div>\n<div>\u00a0 \u00a0 HashMap m = Collections.synchronizedMap(new HashMap());<\/div>\n<div><\/div>\n<div>3\u3001\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\u7c7b<\/div>\n<div>\u00a0 \u00a0 \u4eceJava 5 \u5f00\u59cb\uff0c\u5728java.util.concurrent \u5305\u4e0b\u63d0\u4f9b\u4e86\u5927\u91cf\u652f\u6301\u9ad8\u6548\u5e76\u53d1\u8bbf\u95ee\u7684\u96c6\u5408\u63a5\u53e3\u548c\u5b9e\u73b0\u7c7b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/div>\n<div><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20160122232720346?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" \/><\/div>\n<div><\/div>\n<div>\u00a0 \u00a0 \u4ece\u4e0a\u56fe\u4e2d\u6240\u793a\u7684\u7c7b\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u8fd9\u4e9b\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\u7c7b\u53ef\u4ee5\u5206\u4e3a\u5982\u4e0b\u4e24\u7c7b\u3002<\/div>\n<div>\n<ul>\n<li>\u4ee5Concurrent \u5f00\u5934\u7684\u96c6\u5408\u7c7b\uff0c\u5982ConcurrentHashMap\u3001ConcurrentSkipListMap\u3001ConcurrentSkipListSet\u3001ConcurrentLinkedQueue \u548c ConcurrentLinkedDeque\u3002<\/li>\n<li>\u4ee5CopyOnWrite \u5f00\u5934\u7684\u96c6\u5408\u7c7b\uff0c\u5982CopyOnWriteArrayList\u3001CopyOnWriteArraySet\u3002<\/li>\n<\/ul>\n<div>\u00a0 \u00a0 \u5176\u4e2d\u4ee5Concurrent \u5f00\u5934\u7684\u96c6\u5408\u7c7b\u4ee3\u8868\u4e86\u652f\u6301\u5e76\u53d1\u8bbf\u95ee\u7684\u96c6\u5408\uff0c\u5b83\u4eec\u53ef\u4ee5\u652f\u6301\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u5199\u5165\u8bbf\u95ee\uff0c\u8fd9\u4e9b\u5199\u5165\u7ebf\u7a0b\u7684\u6240\u6709\u64cd\u4f5c\u90fd\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u4f46\u8bfb\u53d6\u64cd\u4f5c\u4e0d\u5fc5\u9501\u5b9a\u3002\u4ee5Concurrent \u5f00\u5934\u7684\u96c6\u5408\u7c7b\u91c7\u7528\u4e86\u66f4\u590d\u6742\u7684\u7b97\u6cd5\u6765\u4fdd\u8bc1\u6c38\u8fdc\u4e0d\u4f1a\u9501\u4f4f\u6574\u4e2a\u96c6\u5408\uff0c\u56e0\u6b64\u5728\u5e76\u53d1\u5199\u5165\u65f6\u6709\u8f83\u597d\u7684\u6027\u80fd\u3002<\/div>\n<\/div>\n<div>\u00a0 \u00a0 \u5f53\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab\u8bbf\u95ee\u4e00\u4e2a\u516c\u5171\u96c6\u5408\u65f6\uff0cConcurrentLinkedQueue \u662f\u4e00\u4e2a\u6070\u5f53\u7684\u9009\u62e9\u3002ConcurrentLinkedQueue\u96c6\u5408\u65f6\u65e0\u9700\u7b49\u5f85\u3002<\/div>\n<div>\u00a0 \u00a0 \u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cConcurrentHashMap \u652f\u630116\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u5199\u5165\uff0c\u5f53\u6709\u8d85\u8fc716 \u4e2a\u7ebf\u7a0b\u5e76\u53d1\u5411\u8be5Map \u4e2d\u5199\u5165\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u6709\u4e00\u4e9b\u7ebf\u7a0b\u9700\u8981\u7b49\u5f85\u3002\u5b9e\u9645\u4e0a\uff0c\u7a0b\u5e8f\u901a\u8fc7\u8bbe\u7f6econcurrentLevel \u6784\u9020\u53c2\u6570(\u9ed8\u8ba4\u503c\u4e3a16)\u6765\u652f\u6301\u66f4\u591a\u7684\u5e76\u53d1\u5199\u5165\u7ebf\u7a0b\u3002<\/div>\n<div>\u00a0 \u00a0 \u4e0e\u524d\u9762\u4ecb\u7ecd\u7684HashMap \u548c\u666e\u901a\u96c6\u5408\u4e0d\u540c\u7684\u662f\uff0c\u56e0\u4e3aConcurrentLinkedQueue \u548c ConcurrenthashMap \u652f\u6301\u591a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\uff0c\u6240\u4ee5\u5f53\u4f7f\u7528\u8fed\u4ee3\u6765\u904d\u5386\u96c6\u5408\u65f6\uff0c\u8be5\u8fed\u4ee3\u5668\u53ef\u80fd\u4e0d\u80fd\u53cd\u6620\u51fa\u521b\u5efa\u8fed\u4ee3\u5668\u4e4b\u540e\u6240\u505a\u7684\u4fee\u6539\uff0c\u4f46\u7a0b\u5e8f\u4e0d\u4f1a\u629b\u51fa\u4efb\u4f55\u5f02\u5e38\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u8f6c\u8f7d\u81ea\uff1ahttps:\/\/blog.csdn.net\/qq_34302506\/article\/deta &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"series":[],"class_list":["post-502","post","type-post","status-publish","format-standard","hentry","category-programmers"],"_links":{"self":[{"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/posts\/502"}],"collection":[{"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fick707.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=502"}],"version-history":[{"count":1,"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/posts\/502\/revisions"}],"predecessor-version":[{"id":503,"href":"https:\/\/fick707.com\/index.php?rest_route=\/wp\/v2\/posts\/502\/revisions\/503"}],"wp:attachment":[{"href":"https:\/\/fick707.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fick707.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fick707.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=502"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/fick707.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}