{"id":473,"date":"2017-02-09T00:30:30","date_gmt":"2017-02-08T16:30:30","guid":{"rendered":"http:\/\/www.rainweb.site\/?p=473"},"modified":"2023-08-07T20:57:29","modified_gmt":"2023-08-07T12:57:29","slug":"java-article42","status":"publish","type":"post","link":"http:\/\/rain1024.com\/index.php\/2017\/02\/09\/java-article42\/","title":{"rendered":"Java\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d"},"content":{"rendered":"<h2>Java\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\uff1bJava\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\uff1bJava\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\uff1bJava\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\u5982\u56fe<\/h2>\n<p><img decoding=\"async\" src=\"http:\/\/blog-1252406596.costj.myqcloud.com\/blog\/java24.jpg\" alt=\" \" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/blog-1252406596.costj.myqcloud.com\/blog\/java25.jpg\" alt=\" \" \/><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/blog-1252406596.costj.myqcloud.com\/blog\/java26.jpg\" alt=\" \" \/><\/p>\n<pre><code class=\"Java\">package com.rain.get;\nimport java.awt.*;\nimport java.awt.event.*;\nimport java.net.*;\nimport java.io.*;\nimport javax.swing.*;\n\/\/\u4ece\u7f51\u7edc\u53d6\u5f97\u6587\u4ef6\npublic class GetFileDemo extends JFrame{\n    JTextField jtfUrl;  \/\/\u8f93\u5165\u6587\u4ef6\u5730\u5740url\n    JButton jbGetFile;  \/\/\u53d6\u6587\u4ef6\u6309\u94ae\n    JLabel jlInfo; \/\/\u663e\u793a\u63d0\u793a\u4fe1\u606f\n    public GetFileDemo(){\n        super(\"\u4ece\u7f51\u7edc\u53d6\u5f97\u6587\u4ef6\");  \/\/\u8c03\u7528\u7236\u7c7b\u6784\u9020\u51fd\u6570\n        Container container=getContentPane();   \/\/\u5f97\u5230\u5bb9\u5668\n        jtfUrl=new JTextField(18); \/\/\u5b9e\u4f8b\u5316\u5730\u5740\u8f93\u5165\u6846\n        jbGetFile=new JButton(\"\u53d6\u6587\u4ef6\");  \/\/\u5b9e\u4f8b\u5316\u6309\u94ae\n        jlInfo=new JLabel(); \n        JPanel p=new JPanel();  \/\/\u5b9e\u4f8b\u5316\u4e00\u4e2a\u9762\u677f,\u7528\u4e8e\u5bb9\u7eb3\u5730\u5740\u8f93\u5165\u6846\u548c\u53d6\u6587\u4ef6\u6309\u94ae\n        p.add(jtfUrl); \/\/\u589e\u52a0\u7ec4\u4ef6\u5230\u9762\u677f\u4e0a\n        p.add(jbGetFile);\n        container.add(p,BorderLayout.NORTH);  \/\/\u589e\u52a0\u7ec4\u4ef6\u5230\u5bb9\u5668\u4e0a\n        container.add(jlInfo,BorderLayout.CENTER);\n        jbGetFile.addActionListener(new ActionListener(){  \/\/\u6309\u94ae\u4e8b\u4ef6\u5904\u7406\n            public void actionPerformed(ActionEvent ent){\n                try{\n                    jlInfo.setText(\"\u6b63\u5728\u8bfb\u53d6\");\n                    URL url=new URL(jtfUrl.getText());    \/\/\u5f97\u5230\u6587\u4ef6\u7684URL\u5730\u5740\n                    InputStream in=url.openStream();  \/\/\u5f97\u5230\u6587\u4ef6\u8f93\u5165\u6d41\n                    String outFilename=JOptionPane.showInputDialog(GetFileDemo.this,\"\u8f93\u5165\u4fdd\u5b58\u6587\u4ef6\u540d \"); \/\/\u8f93\u5165\u4fdd\u5b58\u7684\u6587\u4ef6\u540d\n                    FileOutputStream out=new FileOutputStream(outFilename);  \/\/\u5f97\u5230\u6587\u4ef6\u8f93\u51fa\u6d41\n                    byte[] buffer=new byte[1024]; \/\/\u7f13\u51b2\u533a\u5927\u5c0f\n                    int length;\n                    while ((length=in.read(buffer))!=-1){  \/\/\u8bfb\u53d6\u6570\u636e\n                        out.write(buffer,0,length);  \/\/\u5199\u5165\u6570\u636e\u5230\u6587\u4ef6\n                    } \n                    out.close(); \/\/\u5173\u95ed\u6587\u4ef6\u8f93\u51fa\u6d41\n                    in.close();  \/\/\u5173\u95ed\u8f93\u5165\u6d41             \n                    jlInfo.setText(\"\u8bfb\u53d6\u6587\u4ef6\u6210\u529f\");  \/\/\u663e\u793a\u63d0\u793a\u4fe1\u606f\n                }\n                catch(Exception ex){\n                    ex.printStackTrace(); \/\/\u8f93\u51fa\u51fa\u9519\u4fe1\u606f\n                    jlInfo.setText(\"\u8bfb\u53d6\u6587\u4ef6\u5931\u8d25\");\n                }\n            }\n        });\n        setSize(320,100);  \/\/\u8bbe\u7f6e\u7a97\u53e3\u5c3a\u5bf8\n        setVisible(true);  \/\/\u8bbe\u7f6e\u7a97\u53e3\u53ef\u89c6\n        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  \/\/\u5173\u95ed\u7a97\u53e3\u65f6\u9000\u51fa\u7a0b\u5e8f\n    }\n    public static void main(String[] args){\n        new GetFileDemo();\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Java\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\uff1bJava\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7f16\u5199\u7a97\u53e3\u5b9e\u73b0\u7f51\u4e0a\u6587\u4ef6\u7684\u4e0b\u8f7d\uff1bJava\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u2026 <span class=\"read-more\"><a href=\"http:\/\/rain1024.com\/index.php\/2017\/02\/09\/java-article42\/\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":472,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"footnotes":""},"categories":[31],"tags":[46],"class_list":["post-473","post","type-post","status-publish","format-aside","has-post-thumbnail","hentry","category-java","tag-java","post_format-post-format-aside"],"_links":{"self":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/comments?post=473"}],"version-history":[{"count":1,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/473\/revisions"}],"predecessor-version":[{"id":1498,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/473\/revisions\/1498"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media\/472"}],"wp:attachment":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media?parent=473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/categories?post=473"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/tags?post=473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}