{"id":202859,"date":"2025-05-22T10:55:34","date_gmt":"2025-05-22T02:55:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202859\/"},"modified":"2025-05-22T10:55:34","modified_gmt":"2025-05-22T02:55:34","slug":"java-%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%b8%ad%e9%80%92%e5%bd%92%e7%9a%84%e5%bc%82%e6%ad%a5%e5%a4%84%e7%90%86%e4%b8%8e%e4%bc%98%e5%8c%96%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202859\/","title":{"rendered":"Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406\u4e0e\u4f18\u5316\u65b9\u6cd5"},"content":{"rendered":"

<\/b> <\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406\u4e0e\u4f18\u5316\u65b9\u6cd5<\/h1>\n

\u4f60\u5728\u5b66\u4e60\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406\u4e0e\u4f18\u5316\u65b9\u6cd5\u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<\/span>\uff0c\u5982\u679c\u4f60\u60f3\u63d0\u5347\u81ea\u5df1\u7684\u5f00\u53d1\u80fd\u529b\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5927\u5bb6\u8981\u77e5\u9053\u7f16\u7a0b\u7406\u8bba\u57fa\u7840\u548c\u5b9e\u6218\u64cd\u4f5c\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u54e6\uff01<\/p>\n

\u5728 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\uff0c\u9012\u5f52\u5f02\u6b65\u5904\u7406\u53ef\u7528\u4e8e\u9ad8\u6548\u6267\u884c\u590d\u6742\u7684\u5f02\u6b65\u6d41\u7a0b\uff0c\u4f46\u9700\u8981\u4f18\u5316\u4ee5\u907f\u514d\u5806\u6808\u6ea2\u51fa\u3002\u901a\u8fc7\u5c3e\u9012\u5f52\u4f18\u5316\uff0c\u53ef\u4ee5\u907f\u514d\u5728\u5806\u6808\u4e0a\u7d2f\u79ef\u8c03\u7528\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u4f18\u5316\uff0c\u53ef\u4ee5\u4f7f\u7528\u5806\u6808\u5e27\u5f02\u6b65\u5316\u6280\u672f\uff0c\u5c06\u5c3e\u9012\u5f52\u8c03\u7528\u5c01\u88c5\u5728\u5355\u72ec\u7684 CompletableFuture \u4e2d\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406\u4e0e\u4f18\u5316\u65b9\u6cd5<\/strong><\/p>\n

\u5728 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\uff0c\u9012\u5f52\u5f02\u6b65\u5904\u7406\u53ef\u7528\u4e8e\u5f02\u6b65\u6267\u884c\u4ee3\u7801\u5757\uff0c\u901a\u8fc7\u7ed3\u5408\u9012\u5f52\u548c\u5f02\u6b65\u7f16\u7a0b\uff0c\u53ef\u4ee5\u5b9e\u73b0\u590d\u6742\u7684\u5f02\u6b65\u6d41\u7a0b\u3002\u4f46\u662f\uff0c\u5982\u679c\u6ca1\u6709\u9002\u5f53\u7684\u4f18\u5316\uff0c\u9012\u5f52\u5f02\u6b65\u5904\u7406\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\u6216\u5176\u4ed6\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

\u8003\u8651\u4ee5\u4e0b\u5f02\u6b65\u5904\u7406\u6587\u4ef6\u5217\u8868\u5e76\u5c06\u5b83\u4eec\u7684\u5185\u5bb9\u8ffd\u52a0\u5230\u4e00\u4e2a\u5355\u4e2a\u6587\u4ef6\u7684\u573a\u666f\uff1a<\/p>\n

List<File> fileList = getListOfFiles();\nfor (File file : fileList) {\n  readFileAsync(file).thenApply(content -> appendToFile(content));\n}<\/pre>\n
\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u540c\u6b65\u5904\u7406\uff0c\u5b83\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\uff0c\u76f4\u5230\u6240\u6709\u6587\u4ef6\u7684\u5185\u5bb9\u90fd\u8ffd\u52a0\u5230\u76ee\u6807\u6587\u4ef6\u4e2d\u3002\u4e3a\u4e86\u4f7f\u6b64\u8fc7\u7a0b\u5f02\u6b65\u5316\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 CompletableFuture<\/code>\uff1a<\/p>\n
List<CompletableFuture<Void>> futures = new ArrayList<>();\nfor (File file : fileList) {\n  futures.add(readFileAsync(file).thenApply(content -> appendToFile(content)));\n}\nCompletableFuture.allOf(futures.toArray(new CompletableFuture[0])).join();<\/pre>\n
\u8fd9\u5c06\u5e76\u884c\u5904\u7406\u6587\u4ef6\uff0c\u4f46\u4ecd\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\uff0c\u76f4\u5230\u6240\u6709\u6587\u4ef6\u90fd\u5f97\u5230\u5904\u7406\u3002<\/p>\n
\u9012\u5f52\u5f02\u6b65\u5904\u7406\u7684\u4f18\u5316<\/strong><\/p>\n
\u4e3a\u4e86\u907f\u514d\u5806\u6808\u6ea2\u51fa\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5c3e\u9012\u5f52\u4f18\u5316\uff1a<\/p>\n
public CompletableFuture<Void> handleNextFile(List<File> fileList) {\n  if (fileList.isEmpty()) {\n    return CompletableFuture.completedFuture(null);\n  }\n\n  File nextFile = fileList.get(0);\n  return readFileAsync(nextFile)\n    .thenApply(content -> appendToFile(content))\n    .thenCompose(aVoid -> handleNextFile(fileList.subList(1, fileList.size())));\n}<\/pre>\n
\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528\u9012\u5f52\u8c03\u7528\u6765\u5904\u7406\u4e0b\u4e00\u4e2a\u6587\u4ef6\uff0c\u540c\u65f6\u907f\u514d\u5728\u5806\u6808\u4e0a\u7d2f\u79ef\u8c03\u7528\u3002<\/p>\n
\u4f18\u5316\u5c3e\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406<\/strong><\/p>\n
\u9664\u4e86\u5c3e\u9012\u5f52\u4f18\u5316\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5806\u6808\u5e27\u5f02\u6b65\u5316\u6280\u672f\u8fdb\u4e00\u6b65\u4f18\u5316\u5f02\u6b65\u5904\u7406\u3002\u8fd9\u6d89\u53ca\u5c06\u5c3e\u9012\u5f52\u8c03\u7528\u5305\u88c5\u5728\u5355\u72ec\u7684 CompletableFuture<\/code> \u4e2d\uff0c\u4ee5\u907f\u514d\u5728\u5806\u6808\u4e0a\u7d2f\u79ef\u8c03\u7528\u3002<\/p>\n
public CompletableFuture<Void> handleNextFileWithStackFrameOptimization(List<File> fileList) {\n  if (fileList.isEmpty()) {\n    return CompletableFuture.completedFuture(null);\n  }\n\n  File nextFile = fileList.get(0);\n  return CompletableFuture.supplyAsync(() -> {\n    readFileAsync(nextFile);\n    return handleNextFileWithStackFrameOptimization(fileList.subList(1, fileList.size()));\n  });\n}<\/pre>\n
\u8fd9\u79cd\u4f18\u5316\u901a\u8fc7\u907f\u514d\u5728\u5806\u6808\u4e0a\u7d2f\u79ef\u989d\u5916\u7684\u8c03\u7528\u5e27\u6765\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8ejava,\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65\u5904\u7406\u4e0e\u4f18\u5316\u65b9\u6cd5\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u9012\u5f52\u7684\u5f02\u6b65...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202859","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202859"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202859\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}