{"id":203403,"date":"2025-05-22T08:48:24","date_gmt":"2025-05-22T00:48:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203403\/"},"modified":"2025-05-22T08:48:24","modified_gmt":"2025-05-22T00:48:24","slug":"try%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e8%b5%84%e6%ba%90%e6%96%87%e4%bb%b6%e5%92%8c%e5%86%85%e5%ad%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203403\/","title":{"rendered":"try\u4e2d\u5982\u4f55\u4f7f\u7528\u8d44\u6e90\u6587\u4ef6\u548c\u5185\u5b58"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>try\u4e2d\u5982\u4f55\u4f7f\u7528\u8d44\u6e90\u6587\u4ef6\u548c\u5185\u5b58<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span>    <\/p>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300atry\u4e2d\u5982\u4f55\u4f7f\u7528\u8d44\u6e90\u6587\u4ef6\u548c\u5185\u5b58\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241107\/1730958885672c5625f1221.jpg\" class=\"aligncenter\"><\/p>\n<p>\u6211\u7f16\u5199\u4e86\u4e00\u5c0f\u6bb5\u4ee3\u7801\u6765\u4f7f\u7528 openpdf \u8fdb\u884c\u4e00\u4e9b pdf \u52a0\u5bc6\uff0c\u800c intellij \u7684 sonarlint \u62b1\u6028\u201c\u8d44\u6e90\u5e94\u8be5\u5173\u95ed\u201d\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\u8bf7\u53c2\u89c1\u8fd9\u91cc<\/p>\n<h2> \u4e0d\u5408\u89c4 <\/h2>\n<p>\u4e0b\u9762\u7684\u793a\u4f8b java \u4ee3\u7801<\/p>\n<pre>\npublic class passwordprotectedpdf {\n    private static final logger logger = logger.getlogger(passwordprotectedpdf.class.getname());\n    static final string user_password = \"111\";\n    static final string owner_password = \"111\";\n\n    public static void main(string[] args) {\n        try {\n            file f = new file(\"1_protected.pdf\");\n            fileoutputstream out = new fileoutputstream(f);\n            file pdffile = new file(\"1.pdf\");\n            pdfreader reader = new pdfreader(pdffile.getpath());\n            pdfstamper stamper = new pdfstamper(reader, out);\n\n            hashmap&lt;string, string&gt; info = new hashmap&lt;&gt;();\n            info.put(\"producer\", \"\");\n            reader.getinfo().foreach((key, value) -&gt; {\n                logger.info(\"key: \" + key + \", value: \" + value);\n            });\n            stamper.setinfodictionary(info);\n            stamper.setencryption(user_password.getbytes(), owner_password.getbytes(), pdfwriter.allow_printing, pdfwriter.encryption_aes_128);\n\n            stamper.close();\n            logger.info(\"password protected pdf created successfully.\");\n        } catch (ioexception e) {\n            logger.severe(\"error creating password protected pdf: \" + e.getmessage());\n        }\n    }\n}\n<\/pre>\n<h2> \u5408\u89c4 <\/h2>\n<pre>public class passwordprotectedpdf {\n    private static final logger logger = logger.getlogger(passwordprotectedpdf.class.getname());\n    static final string user_password = \"111\";\n    static final string owner_password = \"111\";\n\n    public static void main(string[] args) {\n        try (\n                fileoutputstream out = new fileoutputstream(new file(\"1_protected.pdf\"));\n                pdfreader reader = new pdfreader(new file(\"1.pdf\").getpath())\n        ) {\n            pdfstamper stamper = new pdfstamper(reader, out);\n\n            hashmap&lt;string, string&gt; info = new hashmap&lt;&gt;();\n            info.put(\"producer\", \"\");\n            reader.getinfo().foreach((key, value) -&gt; {\n                logger.info(\"key: \" + key + \", value: \" + value);\n            });\n            stamper.setinfodictionary(info);\n            stamper.setencryption(user_password.getbytes(), owner_password.getbytes(), pdfwriter.allow_printing, pdfwriter.encryption_aes_128);\n\n            stamper.close();\n            logger.info(\"password protected pdf created successfully.\");\n        } catch (ioexception e) {\n            logger.severe(\"error creating password protected pdf: \" + e.getmessage());\n        }\n    }\n}\n\n<\/pre>\n<p>\u53ea\u662f\u63d0\u9192\u6211\u4eec\u53ef\u4ee5\u5728 try \u5757\u4e2d\u5b9a\u4e49\u591a\u4e2a\u8d44\u6e90<\/p>\n<pre>try (\n                FileOutputStream out = new FileOutputStream(new File(\"1_protected.pdf\"));\n                PdfReader reader = new PdfReader(new File(\"1.pdf\").getPath())\n        )\n<\/pre>\n<p>\u5728\u8fd9\u91cc\u627e\u5230\u5b8c\u6574\u7684\u5de5\u4f5c\u793a\u4f8b<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300atry\u4e2d\u5982\u4f55\u4f7f\u7528\u8d44\u6e90\u6587\u4ef6\u548c\u5185\u5b58\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n<p>      \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb\u5220\u9664<\/p>\n","protected":false},"excerpt":{"rendered":"<p>try\u4e2d\u5982\u4f55\u4f7f\u7528\u8d44\u6e90\u6587\u4ef6\u548c\u5185\u5b58 &#46;&#46;&#46;<\/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-203403","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203403","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=203403"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203403\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}