{"id":97092,"date":"2024-10-20T14:56:17","date_gmt":"2024-10-20T06:56:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97092\/"},"modified":"2024-10-20T14:56:18","modified_gmt":"2024-10-20T06:56:18","slug":"p%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%87%e4%bb%b6%e4%b8%8a%e5%82%b3-jsp%e5%9f%ba%e6%96%bc%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%a6%e4%b8%8a%e5%82%b3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97092\/","title":{"rendered":"P\u5be6\u73fe\u6578\u64da\u5eab\u6587\u4ef6\u4e0a\u50b3 (jsp\u57fa\u65bc\u6578\u64da\u5eab\u5be6\u4e0a\u50b3)"},"content":{"rendered":"<h1 id=\"p%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e6%96%87%e4%bb%b6%e4%b8%8a%e5%82%b3-jsp%e5%9f%ba%e6%96%bc%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%a6%e4%b8%8a%e5%82%b3-LDfNrflVxs\">P\u5be6\u73fe\u6578\u64da\u5eab\u6587\u4ef6\u4e0a\u50b3 (jsp\u57fa\u65bc\u6578\u64da\u5eab\u5be6\u4e0a\u50b3)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6587\u4ef6\u4e0a\u50b3\u529f\u80fd\u5df2\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u57fa\u672c\u9700\u6c42\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528Java Server Pages (JSP)\u7684Web\u61c9\u7528\u4e2d\uff0c\u5be6\u73fe\u6578\u64da\u5eab\u6587\u4ef6\u4e0a\u50b3\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7528\u6236\u9ad4\u9a57\uff0c\u9084\u80fd\u6709\u6548\u7ba1\u7406\u548c\u5b58\u5132\u7528\u6236\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728JSP\u4e2d\u5be6\u73fe\u57fa\u65bc\u6578\u64da\u5eab\u7684\u6587\u4ef6\u4e0a\u50b3\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e6%96%87%e4%bb%b6%e4%b8%8a%e5%82%b3%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-LDfNrflVxs\">\u6587\u4ef6\u4e0a\u50b3\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6587\u4ef6\u4e0a\u50b3\u662f\u6307\u7528\u6236\u5c07\u672c\u5730\u6587\u4ef6\u50b3\u8f38\u5230\u670d\u52d9\u5668\u7684\u904e\u7a0b\u3002\u5728JSP\u4e2d\uff0c\u9019\u901a\u5e38\u6d89\u53ca\u5230HTML\u8868\u55ae\u7684\u4f7f\u7528\uff0c\u4e26\u901a\u904eServlet\u4f86\u8655\u7406\u4e0a\u50b3\u7684\u6587\u4ef6\u3002\u4e0a\u50b3\u7684\u6587\u4ef6\u53ef\u4ee5\u5b58\u5132\u5728\u670d\u52d9\u5668\u7684\u6587\u4ef6\u7cfb\u7d71\u4e2d\uff0c\u6216\u76f4\u63a5\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002\u9078\u64c7\u54ea\u7a2e\u65b9\u5f0f\u53d6\u6c7a\u65bc\u61c9\u7528\u7684\u9700\u6c42\u548c\u8a2d\u8a08\u8003\u91cf\u3002<\/p>\n<h2 id=\"%e7%92%b0%e5%a2%83%e8%a8%ad%e7%bd%ae-LDfNrflVxs\">\u74b0\u5883\u8a2d\u7f6e<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u78ba\u4fdd\u4f60\u7684\u958b\u767c\u74b0\u5883\u5df2\u7d93\u8a2d\u7f6e\u597d\uff0c\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u8981\u7d20\uff1a<\/p>\n<ul>\n<li>Java Development Kit (JDK)<\/li>\n<li>Apache Tomcat \u6216\u5176\u4ed6\u652f\u6301JSP\u7684Web\u4f3a\u670d\u5668<\/li>\n<li>MySQL\u6216\u5176\u4ed6\u95dc\u4fc2\u578b\u6578\u64da\u5eab<\/li>\n<li>Apache Commons FileUpload\u5eab\uff08\u7528\u65bc\u8655\u7406\u6587\u4ef6\u4e0a\u50b3\uff09<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e7%8f%be%e6%ad%a5%e9%a9%9f-LDfNrflVxs\">\u5be6\u73fe\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e5%89%b5%e5%bb%bahtml%e8%a1%a8%e5%96%ae-LDfNrflVxs\">1. \u5275\u5efaHTML\u8868\u55ae<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u4e00\u500bHTML\u8868\u55ae\u4f86\u8b93\u7528\u6236\u9078\u64c7\u8981\u4e0a\u50b3\u7684\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u8868\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>&lt;form action=\"upload\" method=\"post\" enctype=\"multipart\/form-data\"&gt;\n    &lt;input type=\"file\" name=\"file\"&gt;\n    &lt;input type=\"submit\" value=\"\u4e0a\u50b3\"&gt;\n&lt;\/form&gt;<\/code><\/pre>\n<h3 id=\"2-%e5%89%b5%e5%bb%baservlet%e4%be%86%e8%99%95%e7%90%86%e4%b8%8a%e5%82%b3-LDfNrflVxs\">2. \u5275\u5efaServlet\u4f86\u8655\u7406\u4e0a\u50b3<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5275\u5efa\u4e00\u500bServlet\u4f86\u8655\u7406\u6587\u4ef6\u4e0a\u50b3\u3002\u4ee5\u4e0b\u662fServlet\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n<pre><code>import java.io.*;\nimport javax.servlet.*;\nimport javax.servlet.http.*;\nimport org.apache.commons.fileupload.*;\nimport org.apache.commons.fileupload.disk.*;\nimport org.apache.commons.fileupload.servlet.*;\n\npublic class FileUploadServlet extends HttpServlet {\n    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\n        if (ServletFileUpload.isMultipartContent(request)) {\n            DiskFileItemFactory factory = new DiskFileItemFactory();\n            ServletFileUpload upload = new ServletFileUpload(factory);\n            try {\n                List&lt;FileItem&gt; items = upload.parseRequest(request);\n                for (FileItem item : items) {\n                    if (!item.isFormField()) {\n                        String fileName = item.getName();\n                        InputStream fileContent = item.getInputStream();\n                        \/\/ \u5c07\u6587\u4ef6\u5167\u5bb9\u5b58\u5132\u5230\u6578\u64da\u5eab\n                        saveFileToDatabase(fileName, fileContent);\n                    }\n                }\n            } catch (Exception e) {\n                e.printStackTrace();\n            }\n        }\n    }\n\n    private void saveFileToDatabase(String fileName, InputStream fileContent) {\n        \/\/ \u6578\u64da\u5eab\u9023\u63a5\u548c\u5b58\u5132\u908f\u8f2f\n    }\n}<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%98%e5%84%b2-LDfNrflVxs\">3. \u6578\u64da\u5eab\u5b58\u5132<\/h3>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9700\u8981\u5be6\u73fe`saveFileToDatabase`\u65b9\u6cd5\u4f86\u5c07\u6587\u4ef6\u5167\u5bb9\u5b58\u5132\u5230\u6578\u64da\u5eab\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u4f7f\u7528JDBC\u5c07\u6587\u4ef6\u5b58\u5132\u5230MySQL\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>private void saveFileToDatabase(String fileName, InputStream fileContent) {\n    String jdbcURL = \"jdbc:mysql:\/\/localhost:3306\/your_database\";\n    String dbUser = \"your_username\";\n    String dbPassword = \"your_password\";\n\n    try (Connection connection = DriverManager.getConnection(jdbcURL, dbUser, dbPassword)) {\n        String sql = \"INSERT INTO files (file_name, file_data) VALUES (?, ?)\";\n        PreparedStatement statement = connection.prepareStatement(sql);\n        statement.setString(1, fileName);\n        statement.setBlob(2, fileContent);\n        statement.executeUpdate();\n    } catch (SQLException e) {\n        e.printStackTrace();\n    }\n}<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LDfNrflVxs\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u6211\u5011\u53ef\u4ee5\u5728JSP\u4e2d\u5be6\u73fe\u57fa\u65bc\u6578\u64da\u5eab\u7684\u6587\u4ef6\u4e0a\u50b3\u529f\u80fd\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7528\u6236\u7684\u4e92\u52d5\u6027\uff0c\u9084\u80fd\u6709\u6548\u5730\u7ba1\u7406\u548c\u5b58\u5132\u7528\u6236\u7684\u6587\u4ef6\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u4f3a\u670d\u5668\u74b0\u5883\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5be6\u73feP\u6578\u64da\u5eab\u6587\u4ef6\u4e0a\u50b3\uff0c\u57fa\u65bcJSP\u6280\u8853\uff0c\u8f15\u9b06\u7ba1\u7406\u548c\u5b58\u5132\u6587\u4ef6\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-97092","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97092","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=97092"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97092\/revisions"}],"predecessor-version":[{"id":97093,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97092\/revisions\/97093"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}