{"id":65909,"date":"2025-05-03T11:50:46","date_gmt":"2025-05-03T03:50:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65909\/"},"modified":"2025-05-03T11:50:46","modified_gmt":"2025-05-03T03:50:46","slug":"java%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e6%95%b0%e7%bb%84%e6%98%af%e5%90%a6%e6%9c%89%e7%a9%ba%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65909\/","title":{"rendered":"Java\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u6709\u7a7a\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5224\u65ad java \u6570\u7ec4\u662f\u5426\u5305\u542b\u7a7a\u503c\uff1a\u4f7f\u7528 arrays.stream(array).anymatch(objects::isnull) \u65b9\u6cd5\uff0c\u68c0\u67e5\u6570\u7ec4\u8f6c\u6362\u4e3a stream \u4e2d\u662f\u5426\u5b58\u5728 null \u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111315272812952.jpg\" class=\"aligncenter\" title=\"Java\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u6709\u7a7a\u503c\u63d2\u56fe\" alt=\"Java\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u6709\u7a7a\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5224\u65ad Java \u6570\u7ec4\u662f\u5426\u5305\u542b\u7a7a\u503c<\/strong><\/p>\n<p><strong>\u7b54\u6848\uff1a<\/strong> \u4f7f\u7528 Arrays.stream(array).anyMatch(Objects::isNull) \u65b9\u6cd5\u3002<\/p>\n<p><strong>\u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n<p>\u8981\u5224\u65ad Java \u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ol>\n<li>\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a Stream\uff1a\u4f7f\u7528 Arrays.stream(array) \u65b9\u6cd5\u3002<\/li>\n<li>\u4f7f\u7528 anyMatch() \u65b9\u6cd5\uff1a\u8be5\u65b9\u6cd5\u68c0\u67e5 Stream \u4e2d\u662f\u5426\u5b58\u5728\u6ee1\u8db3\u7ed9\u5b9a\u8c13\u8bcd\u7684\u5143\u7d20\u3002<\/li>\n<li>\u5c06 Objects::isNull \u4f20\u9012\u7ed9 anyMatch() \u4f5c\u4e3a\u8c13\u8bcd\uff1a\u6b64\u8c13\u8bcd\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a null\u3002<\/li>\n<\/ol>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u6b64\u65b9\u6cd5\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3, null, 5};\n\nboolean containsNull = Arrays.stream(numbers).anyMatch(Objects::isNull);\n\nif (containsNull) {\n    System.out.println(\"\u6570\u7ec4\u5305\u542b\u7a7a\u503c\");\n} else {\n    System.out.println(\"\u6570\u7ec4\u4e0d\u5305\u542b\u7a7a\u503c\");\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>\u6570\u7ec4\u5305\u542b\u7a7a\u503c<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJava\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u662f\u5426\u6709\u7a7a\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5224\u65ad java \u6570\u7ec4\u662f\u5426\u5305\u542b\u7a7a\u503c\uff1a\u4f7f\u7528 arrays.stream(array).anymatch(objects::isnull) \u65b9\u6cd5\uff0c\u68c0\u67e5\u6570\u7ec4\u8f6c\u6362\u4e3a stream \u4e2d\u662f\u5426\u5b58\u5728 null \u5143\u7d20\u3002 \u5982\u4f55\u5224\u65ad Java \u6570\u7ec4\u662f\u5426\u5305\u542b\u7a7a\u503c \u7b54\u6848\uff1a \u4f7f\u7528 Arrays.stream(array).anyMatch(Objects::isNull) \u65b9\u6cd5\u3002 \u8be6\u7ec6\u8bf4\u660e\uff1a \u8981\u5224\u65ad Java \u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u7a7a\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a Stream\uff1a\u4f7f\u7528 Arrays.stream(array) \u65b9\u6cd5\u3002 \u4f7f\u7528 anyMatch() \u65b9\u6cd5\uff1a\u8be5\u65b9\u6cd5\u68c0\u67e5 Stream \u4e2d\u662f\u5426\u5b58\u5728\u6ee1\u8db3\u7ed9\u5b9a\u8c13\u8bcd\u7684\u5143\u7d20\u3002 \u5c06 Objects::isNull \u4f20\u9012\u7ed9 anyMatch() \u4f5c\u4e3a\u8c13\u8bcd\uff1a\u6b64\u8c13\u8bcd\u68c0\u67e5\u5143\u7d20\u662f\u5426\u4e3a null\u3002 \u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u6b64\u65b9\u6cd5\uff1a int[] numbers = {1, 2, 3, null, 5}; boolean containsNull = Arrays.stream(numbers).anyMatch(Objects::isNull); if (containsNull) { System.out.println(&#8220;\u6570\u7ec4\u5305\u542b\u7a7a\u503c&#8221;); } else [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65909","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65909"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65909\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}