{"id":202860,"date":"2025-05-22T10:18:23","date_gmt":"2025-05-22T02:18:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202860\/"},"modified":"2025-05-22T10:18:23","modified_gmt":"2025-05-22T02:18:23","slug":"java-%e5%87%bd%e6%95%b0%e7%9a%84%e5%ae%89%e5%85%a8%e6%80%a7%e8%80%83%e8%99%91%e5%9b%a0%e7%b4%a0%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202860\/","title":{"rendered":"Java \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

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

Java \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20\u6709\u54ea\u4e9b\uff1f<\/h1>\n

\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u5c31\u6574\u7406\u5206\u4eab\u300aJava \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20\u6709\u54ea\u4e9b\uff1f\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n

\u8bbe\u8ba1\u548c\u5b9e\u73b0 Java \u51fd\u6570\u65f6\uff0c\u8003\u8651\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\uff0c\u6d89\u53ca\u4ee5\u4e0b\u5173\u952e\u56e0\u7d20\uff1a\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u7684\u6709\u6548\u6027\uff0c\u9632\u6b62\u6ce8\u5165\u653b\u51fb\u548c\u6570\u636e\u64cd\u7eb5\u3002\u7f16\u7801\u8f93\u51fa\uff0c\u9632\u6b62\u8de8\u7ad9\u70b9\u811a\u672c\u653b\u51fb\u3002\u68c0\u67e5\u7528\u6237\u6743\u9650\uff0c\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u8bbf\u95ee\u548c\u6267\u884c\u51fd\u6570\u3002\u8bb0\u5f55\u51fd\u6570\u8c03\u7528\u5e76\u76d1\u63a7\u884c\u4e3a\uff0c\u53ca\u65e9\u53d1\u73b0\u95ee\u9898\u3002\u4e3a\u53ef\u9009\u9879\u8bbe\u7f6e\u5408\u7406\u7684\u9ed8\u8ba4\u503c\uff0c\u9632\u6b62\u653b\u51fb\u8005\u5229\u7528\u65e0\u6548\u503c\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20<\/strong><\/p>\n

\u5728\u8bbe\u8ba1\u548c\u5b9e\u73b0 Java \u51fd\u6570\u65f6\uff0c\u8003\u8651\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u4ee3\u7801\u5229\u7528\u4f60\u7684\u4ee3\u7801\uff0c\u4ece\u800c\u635f\u5bb3\u7cfb\u7edf\u6216\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5173\u952e\u8003\u8651\u56e0\u7d20\uff1a<\/p>\n

1. \u8f93\u5165\u9a8c\u8bc1<\/strong><\/p>\n

\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u662f\u5426\u6709\u6548\u5e76\u7b26\u5408\u9884\u671f\u8303\u56f4\u3002\u901a\u8fc7\u5bf9\u8f93\u5165\u8fdb\u884c\u9002\u5f53\u7684\u9a8c\u8bc1\uff0c\u53ef\u4ee5\u9632\u6b62\u6ce8\u5165\u653b\u51fb\u548c\u6570\u636e\u64cd\u7eb5\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n

public boolean isValidInput(String input) {\n    \/\/ \u68c0\u67e5\u8f93\u5165\u4e0d\u4e3a null \u6216\u7a7a\u5b57\u7b26\u4e32\n    if (input == null || input.isEmpty()) {\n        return false;\n    }\n\n    \/\/ \u68c0\u67e5\u8f93\u5165\u4e0d\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u6216\u975e\u6cd5\u5b57\u7b26\n    Pattern pattern = Pattern.compile(\"^[a-zA-Z0-9\\\\s]+$\");\n    Matcher matcher = pattern.matcher(input);\n    if (!matcher.matches()) {\n        return false;\n    }\n\n    \/\/ \u5176\u4ed6\u9a8c\u8bc1\u89c4\u5219\uff0c\u5982\u957f\u5ea6\u9650\u5236\u7b49\n\n    return true;\n}<\/pre>\n
2. \u8f93\u51fa\u7f16\u7801<\/strong><\/p>\n
\u5728\u5c06\u6570\u636e\u663e\u793a\u7ed9\u7528\u6237\u4e4b\u524d\uff0c\u5bf9\u8f93\u51fa\u8fdb\u884c\u7f16\u7801\uff0c\u4ee5\u9632\u6b62\u8de8\u7ad9\u70b9\u811a\u672c\u653b\u51fb (XSS) \u548c\u5176\u4ed6\u6ce8\u5165\u653b\u51fb\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
public String encodeOutput(String output) {\n    \/\/ \u4f7f\u7528 HTML \u5b9e\u4f53\u6216\u5176\u4ed6\u9002\u5f53\u7684\u7f16\u7801\u65b9\u6cd5\u7f16\u7801\u8f93\u51fa\n    String encodedOutput = HtmlEncoder.encode(output);\n    return encodedOutput;\n}<\/pre>\n
3. \u6743\u9650\u68c0\u67e5<\/strong><\/p>\n
\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u624d\u80fd\u8bbf\u95ee\u548c\u6267\u884c\u51fd\u6570\u3002\u6839\u636e\u7528\u6237\u7684\u89d2\u8272\u548c\u6743\u9650\u8fdb\u884c\u68c0\u67e5\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
public boolean hasPermission(User user) {\n    \/\/ \u68c0\u67e5\u7528\u6237\u662f\u5426\u62e5\u6709\u76f8\u5e94\u7684\u6743\u9650\n    if (user.getRole() == Role.ADMIN || user.getRole() == Role.MANAGER) {\n        return true;\n    }\n    return false;\n}<\/pre>\n
4. \u65e5\u5fd7\u8bb0\u5f55\u548c\u76d1\u63a7<\/strong><\/p>\n
\u8bb0\u5f55\u51fd\u6570\u8c03\u7528\u5e76\u76d1\u63a7\u5176\u884c\u4e3a\uff0c\u4ee5\u68c0\u6d4b\u53ef\u7591\u6d3b\u52a8\u6216\u653b\u51fb\u3002\u8fd9\u5c06\u6709\u52a9\u4e8e\u53ca\u65e9\u53d1\u73b0\u95ee\u9898\u5e76\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
public void logFunctionCall(String functionName, String parameters) {\n    \/\/ \u5c06\u51fd\u6570\u8c03\u7528\u65e5\u5fd7\u8bb0\u5f55\u5230\u6587\u4ef6\u6216\u6570\u636e\u5e93\n    logger.info(\"Function '{}' was called with parameters: {}\", functionName, parameters);\n}<\/pre>\n
5. \u5408\u7406\u7684\u9ed8\u8ba4\u503c<\/strong><\/p>\n
\u4e3a\u53ef\u9009\u9879\u8bbe\u7f6e\u5408\u7406\u7684\u9ed8\u8ba4\u503c\u3002\u8fd9\u6837\u53ef\u4ee5\u9632\u6b62\u653b\u51fb\u8005\u5229\u7528\u672a\u8bbe\u7f6e\u6216\u65e0\u6548\u7684\u503c\u8fdb\u884c\u653b\u51fb\u3002<\/p>\n
\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
public int getDefaultPageSize() {\n    \/\/ \u5982\u679c\u672a\u6307\u5b9a\u9875\u5927\u5c0f\uff0c\u5219\u8fd4\u56de\u5408\u7406\u7684\u9ed8\u8ba4\u503c\n    return 10;\n}<\/pre>\n
\u901a\u8fc7\u8003\u8651\u8fd9\u4e9b\u56e0\u7d20\u5e76\u5b9e\u65bd\u9002\u5f53\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f60\u53ef\u4ee5\u63d0\u9ad8 Java \u51fd\u6570\u7684\u5b89\u5168\u6027\uff0c\u5e76\u9632\u6b62\u6076\u610f\u4ee3\u7801\u5229\u7528\u5b83\u4eec\u8fdb\u884c\u653b\u51fb\u3002<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aJava \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20\u6709\u54ea\u4e9b\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u51fd\u6570\u7684\u5b89\u5168\u6027\u8003\u8651\u56e0\u7d20\u6709...<\/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-202860","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202860","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=202860"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202860\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}