{"id":35277,"date":"2024-11-26T14:29:43","date_gmt":"2024-11-26T06:29:43","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35277\/"},"modified":"2024-11-26T14:29:43","modified_gmt":"2024-11-26T06:29:43","slug":"java%e9%9b%86%e5%90%88%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e6%8e%a5io%e6%b5%81%e7%99%bb%e5%bd%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35277\/","title":{"rendered":"Java\u96c6\u5408\u6570\u7ec4\u600e\u4e48\u63a5io\u6d41\u767b\u5f55"},"content":{"rendered":"

\n \u901a\u8fc7\u7ec4\u5408\u96c6\u5408\u6570\u7ec4\u548c io \u6d41\uff0c\u53ef\u4ee5\u5728 java \u4e2d\u5b9e\u73b0\u5bf9\u96c6\u5408\u6570\u7ec4\u5143\u7d20\u7684 io \u6d41\u64cd\u4f5c\uff0c\u5177\u4f53\u6b65\u9aa4\u5305\u62ec\uff1a\u521b\u5efa\u96c6\u5408\u6570\u7ec4\u5e76\u6dfb\u52a0\u5143\u7d20\u3002\u521b\u5efa\u8f93\u5165\u6216\u8f93\u51fa\u6d41\u5e76\u5173\u8054\u5230\u76ee\u6807\u6587\u4ef6\u3002\u904d\u5386\u96c6\u5408\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528 io \u6d41\u65b9\u6cd5\u9010\u4e00\u8bfb\u53d6\u6216\u5199\u5165\u6570\u636e\u3002\n<\/p><\/blockquote>\n

\"Java\u96c6\u5408\u6570\u7ec4\u600e\u4e48\u63a5io\u6d41\u767b\u5f55\u63d2\u56fe\"<\/p>\n

Java \u96c6\u5408\u6570\u7ec4\u63a5\u5165 IO \u6d41\u767b\u5f55<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u901a\u8fc7\u7ec4\u5408\u96c6\u5408\u6570\u7ec4\u548c IO \u6d41\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u96c6\u5408\u6570\u7ec4\u5143\u7d20\u9010\u4e00\u8fdb\u884c IO \u6d41\u64cd\u4f5c\uff0c\u5b9e\u73b0\u6570\u636e\u5904\u7406\u548c\u5b58\u50a8\u3002<\/p>\n

\u5b9e\u73b0\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \n

    \u521b\u5efa\u96c6\u5408\u6570\u7ec4\uff1a<\/strong><\/p>\n

    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

      \n
    • \u5b9a\u4e49\u4e00\u4e2a\u96c6\u5408\u7c7b\uff0c\u4f8b\u5982 List \u6216 Set\uff0c\u4ee5\u5bb9\u7eb3\u8981\u5904\u7406\u7684\u5143\u7d20\u3002<\/li>\n
    • \u4f7f\u7528\u96c6\u5408 API \u6dfb\u52a0\u8981\u5904\u7406\u7684\u5143\u7d20\u5230\u96c6\u5408\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n

      \u521b\u5efa IO \u6d41\uff1a<\/strong><\/p>\n

        \n
      • \u6839\u636e\u9700\u8981\u521b\u5efa\u8f93\u5165\u6d41\u6216\u8f93\u51fa\u6d41\uff0c\u4f8b\u5982 FileInputStream \u6216 FileOutputStream\u3002<\/li>\n
      • \u5c06 IO \u6d41\u4e0e\u8981\u5b58\u50a8\u6216\u8bfb\u53d6\u6570\u636e\u7684\u76ee\u6807\u6587\u4ef6\u6216\u8d44\u6e90\u76f8\u5173\u8054\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n

        \u904d\u5386\u96c6\u5408\u6570\u7ec4\uff1a<\/strong><\/p>\n

          \n
        • \u4f7f\u7528\u96c6\u5408\u7684\u8fed\u4ee3\u5668\u6216\u5faa\u73af\u8bed\u53e5\u904d\u5386\u96c6\u5408\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \n

          \u5e94\u7528 IO \u6d41\u64cd\u4f5c\uff1a<\/strong><\/p>\n

            \n
          • \u5728\u904d\u5386\u6bcf\u4e2a\u5143\u7d20\u65f6\uff0c\u4f7f\u7528 IO \u6d41\u65b9\u6cd5\u8bfb\u53d6\u6216\u5199\u5165\u6570\u636e\u3002<\/li>\n
          • \u4f8b\u5982\uff0c\u5bf9\u4e8e\u8f93\u5165\u6d41\uff0c\u4f7f\u7528 read() \u65b9\u6cd5\u8bfb\u53d6\u6570\u636e\uff1b\u5bf9\u4e8e\u8f93\u51fa\u6d41\uff0c\u4f7f\u7528 write() \u65b9\u6cd5\u5199\u5165\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

            \u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n

            import java.io.FileInputStream;\nimport java.io.FileOutputStream;\nimport java.util.ArrayList;\nimport java.util.List;\n\npublic class CollectionArrayIOStreamLogin {\n\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u96c6\u5408\u6570\u7ec4\n        List<String> usernames = new ArrayList<>();\n        usernames.add(\"user1\");\n        usernames.add(\"user2\");\n        usernames.add(\"user3\");\n\n        try (FileOutputStream fos = new FileOutputStream(\"usernames.txt\")) {\n            \/\/ \u904d\u5386\u96c6\u5408\u6570\u7ec4\u5e76\u5199\u5165\u5230\u6587\u4ef6\n            for (String username : usernames) {\n                fos.write(username.getBytes());\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n\n        try (FileInputStream fis = new FileInputStream(\"usernames.txt\")) {\n            \/\/ \u904d\u5386\u6587\u4ef6\u5e76\u8f93\u51fa\u7528\u6237\u540d\n            byte[] buffer = new byte[1024];\n            int length;\n            while ((length = fis.read(buffer)) > 0) {\n                String username = new String(buffer, 0, length);\n                System.out.println(username);\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/pre>\n
             \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
            \u4ee5\u4e0a\u5c31\u662fJava\u96c6\u5408\u6570\u7ec4\u600e\u4e48\u63a5io\u6d41\u767b\u5f55\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u901a\u8fc7\u7ec4\u5408\u96c6\u5408\u6570\u7ec4\u548c io \u6d41\uff0c\u53ef\u4ee5\u5728 java \u4e2d\u5b9e\u73b0\u5bf9\u96c6\u5408\u6570\u7ec4\u5143\u7d20\u7684 io \u6d41\u64cd\u4f5c\uff0c\u5177\u4f53\u6b65\u9aa4\u5305\u62ec\uff1a\u521b\u5efa\u96c6\u5408\u6570\u7ec4\u5e76\u6dfb\u52a0\u5143\u7d20\u3002\u521b\u5efa\u8f93\u5165\u6216\u8f93\u51fa\u6d41\u5e76\u5173\u8054\u5230\u76ee\u6807\u6587\u4ef6\u3002\u904d\u5386\u96c6\u5408\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528 io \u6d41\u65b9\u6cd5\u9010\u4e00\u8bfb\u53d6\u6216\u5199\u5165\u6570\u636e\u3002 Java \u96c6\u5408\u6570\u7ec4\u63a5\u5165 IO \u6d41\u767b\u5f55 \u5728 Java \u4e2d\uff0c\u901a\u8fc7\u7ec4\u5408\u96c6\u5408\u6570\u7ec4\u548c IO \u6d41\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u96c6\u5408\u6570\u7ec4\u5143\u7d20\u9010\u4e00\u8fdb\u884c IO \u6d41\u64cd\u4f5c\uff0c\u5b9e\u73b0\u6570\u636e\u5904\u7406\u548c\u5b58\u50a8\u3002 \u5b9e\u73b0\u6b65\u9aa4\uff1a \u521b\u5efa\u96c6\u5408\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5b9a\u4e49\u4e00\u4e2a\u96c6\u5408\u7c7b\uff0c\u4f8b\u5982 List \u6216 Set\uff0c\u4ee5\u5bb9\u7eb3\u8981\u5904\u7406\u7684\u5143\u7d20\u3002 \u4f7f\u7528\u96c6\u5408 API \u6dfb\u52a0\u8981\u5904\u7406\u7684\u5143\u7d20\u5230\u96c6\u5408\u4e2d\u3002 \u521b\u5efa IO \u6d41\uff1a \u6839\u636e\u9700\u8981\u521b\u5efa\u8f93\u5165\u6d41\u6216\u8f93\u51fa\u6d41\uff0c\u4f8b\u5982 FileInputStream \u6216 FileOutputStream\u3002 \u5c06 IO \u6d41\u4e0e\u8981\u5b58\u50a8\u6216\u8bfb\u53d6\u6570\u636e\u7684\u76ee\u6807\u6587\u4ef6\u6216\u8d44\u6e90\u76f8\u5173\u8054\u3002 \u904d\u5386\u96c6\u5408\u6570\u7ec4\uff1a \u4f7f\u7528\u96c6\u5408\u7684\u8fed\u4ee3\u5668\u6216\u5faa\u73af\u8bed\u53e5\u904d\u5386\u96c6\u5408\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u3002 \u5e94\u7528 IO \u6d41\u64cd\u4f5c\uff1a \u5728\u904d\u5386\u6bcf\u4e2a\u5143\u7d20\u65f6\uff0c\u4f7f\u7528 IO \u6d41\u65b9\u6cd5\u8bfb\u53d6\u6216\u5199\u5165\u6570\u636e\u3002 \u4f8b\u5982\uff0c\u5bf9\u4e8e\u8f93\u5165\u6d41\uff0c\u4f7f\u7528 read() \u65b9\u6cd5\u8bfb\u53d6\u6570\u636e\uff1b\u5bf9\u4e8e\u8f93\u51fa\u6d41\uff0c\u4f7f\u7528 write() \u65b9\u6cd5\u5199\u5165\u6570\u636e\u3002 \u793a\u4f8b\u4ee3\u7801\uff1a import […]<\/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-35277","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35277","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=35277"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35277\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}