{"id":2329,"date":"2022-12-09T14:46:06","date_gmt":"2022-12-09T06:46:06","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2329"},"modified":"2022-12-19T20:43:53","modified_gmt":"2022-12-19T12:43:53","slug":"%e6%96%87%e4%bb%b6%e4%b8%8b%e8%bd%bd-%e6%96%87%e4%bb%b6%e4%b8%8b%e8%bd%bd%e7%9a%84%e5%ae%9e%e7%8e%b0%e3%80%81%e6%96%87%e4%bb%b6%e4%b8%8b%e8%bd%bd-%e4%bd%bf%e7%94%a8urlencoder%e8%a7%a3%e5%86%b3","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2329","title":{"rendered":"\u6587\u4ef6\u4e0b\u8f7d-\u6587\u4ef6\u4e0b\u8f7d\u7684\u5b9e\u73b0\u3001\u4f7f\u7528URLEncoder\u89e3\u51b3\u8c37\u6b4c\u548cIE\u6d4f\u89c8\u5668\u4e2d\u6587\u4e0b\u8f7d\u540d\u4e71\u7801\u95ee\u9898\u3001Base64\u7f16\u89e3\u7801\u64cd\u4f5c\u3001\u4f7f\u7528Base64\u7f16\u89e3\u7801\u89e3\u51b3\u706b\u72d0\u6d4f\u89c8\u5668\u9644\u4ef6\u4e2d\u6587\u4e71\u7801\u95ee\u9898\u3001\u4f7f\u7528User-Agent\u8bf7\u6c42\u5934\u5224\u65ad\uff0c\u52a8\u6001\u5207\u6362\u4e0d\u540c\u7684\u65b9\u6848\u89e3\u51b3\u6240\u6709\u6d4f\u89c8\u5668\u9644\u4ef6\u4e2d\u6587\u4e71\u7801\u95ee\u9898"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u6587\u4ef6\u4e0b\u8f7d<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e0b\u8f7d\u7684\u5e38\u7528 API \u8bf4\u660e\uff1a\nresponse.getOutputStream();\nservletContext.getResourceAsStream();\nservletContext.getMimeType();\nresponse.setContentType();<\/code><\/pre>\n\n\n\n<p>response.setHeader(&#8220;Content-Disposition&#8221;, &#8220;attachment; fileName=1.jpg&#8221;);<br>\u8fd9\u4e2a\u54cd\u5e94\u5934\u544a\u8bc9\u6d4f\u89c8\u5668\u3002\u8fd9\u662f\u9700\u8981\u4e0b\u8f7d\u7684\u3002\u800c attachment \u8868\u793a\u9644\u4ef6\uff0c\u4e5f\u5c31\u662f\u4e0b\u8f7d\u7684\u4e00\u4e2a\u6587\u4ef6\u3002fileName=\u540e\u9762\uff0c\u8868\u793a\u4e0b\u8f7d\u7684\u6587\u4ef6\u540d\u3002<\/p>\n\n\n\n<p>\u5b8c\u6210\u4e0a\u9762\u7684\u4e24\u4e2a\u6b65\u9aa4\uff0c\u4e0b\u8f7d\u6587\u4ef6\u662f\u6ca1\u95ee\u9898\u4e86\u3002\u4f46\u662f\u5982\u679c\u6211\u4eec\u8981\u4e0b\u8f7d\u7684\u6587\u4ef6\u662f\u4e2d\u6587\u540d\u7684\u8bdd\u3002\u4f60\u4f1a\u53d1\u73b0\uff0c\u4e0b\u8f7d\u65e0\u6cd5\u6b63\u786e\u663e\u793a\u51fa\u6b63\u786e\u7684\u4e2d\u6587\u540d\u3002<br>\u539f\u56e0\u662f\u5728\u54cd\u5e94\u5934\u4e2d\uff0c\u4e0d\u80fd\u5305\u542b\u6709\u4e2d\u6587\u5b57\u7b26\uff0c\u53ea\u80fd\u5305\u542b ASCII \u7801\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u6587\u4ef6\u4e0b\u8f7d\u793a\u4f8b\uff1a\n\n@Override\nprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,\nIOException {\n\/\/\n1\u3001\u83b7\u53d6\u8981\u4e0b\u8f7d\u7684\u6587\u4ef6\u540d\nString downloadFileName = \"2.jpg\";\n\/\/\n2\u3001\u8bfb\u53d6\u8981\u4e0b\u8f7d\u7684\u6587\u4ef6\u5185\u5bb9 (\u901a\u8fc7 ServletContext \u5bf9\u8c61\u53ef\u4ee5\u8bfb\u53d6)\nServletContext servletContext = getServletContext();\n\/\/ \u83b7\u53d6\u8981\u4e0b\u8f7d\u7684\u6587\u4ef6\u7c7b\u578b\nString mimeType = servletContext.getMimeType(\"\/file\/\" + downloadFileName);\nSystem.out.println(\"\u4e0b\u8f7d\u7684\u6587\u4ef6\u7c7b\u578b\uff1a\" + mimeType);\n\/\/\n4\u3001\u5728\u56de\u4f20\u524d\uff0c\u901a\u8fc7\u54cd\u5e94\u5934\u544a\u8bc9\u5ba2\u6237\u7aef\u8fd4\u56de\u7684\u6570\u636e\u7c7b\u578b\nresp.setContentType(mimeType);\n\/\/\n5\u3001\u8fd8\u8981\u544a\u8bc9\u5ba2\u6237\u7aef\u6536\u5230\u7684\u6570\u636e\u662f\u7528\u4e8e\u4e0b\u8f7d\u4f7f\u7528\uff08\u8fd8\u662f\u4f7f\u7528\u54cd\u5e94\u5934\uff09\n\/\/ Content-Disposition \u54cd\u5e94\u5934\uff0c\u8868\u793a\u6536\u5230\u7684\u6570\u636e\u600e\u4e48\u5904\u7406\n\/\/ attachment \u8868\u793a\u9644\u4ef6\uff0c\u8868\u793a\u4e0b\u8f7d\u4f7f\u7528\n\/\/ filename= \u8868\u793a\u6307\u5b9a\u4e0b\u8f7d\u7684\u6587\u4ef6\u540d\nresp.setHeader(\"Content-Disposition\", \"attachment; 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