{"id":945,"date":"2018-09-17T18:42:40","date_gmt":"2018-09-17T09:42:40","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=945"},"modified":"2018-12-23T01:52:55","modified_gmt":"2018-12-22T16:52:55","slug":"xmlencoder-writeobject","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/zh\/\u535a\u5ba2\/java\/xmlencoder-writeobject","title":{"rendered":"\u4f7f\u7528 Java XMLEncoder \u4fdd\u5b58\u5bf9\u8c61\u3002"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java <strong>XMLEncoder<\/strong>\u4fdd\u5b58\u5bf9\u8c61\u3001<strong>XMLDecoder.<\/strong>\u4fee\u590d\u8005<\/a><\/h2>\n<p>\n<strong>Java<\/strong>\u5bf9\u8c61\u7684<strong>XML \u683c\u5f0f<\/strong>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u7a0b\u5e8f\uff0c\u5b83\u5c06\u6570\u636e\u4fdd\u5b58\u5728<br \/>\nXML \u8f93\u51fa\u5305\u62ec<strong>java.beans.XMLEncoder<\/strong>\u4f7f\u7528\u3002<br \/>\n\u548c<strong>java.beans.XMLDecoder<\/strong>\u540c\u65f6\u8fd8\u63d0\u4f9b\u4e86\u6062\u590d\u5df2\u4fdd\u5b58\u5bf9\u8c61\u7684\u793a\u4f8b\u7a0b\u5e8f\u3002<\/p>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br \/>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2 class=\"common_title\"><a name=\"1\">\u793a\u4f8b\u7a0b\u5e8f<\/a><\/h2>\n<ul>\n<li>\u58f0\u660e\u4e3a\u79c1\u6709\u7684\u5b57\u6bb5\u4f1a\u5728\u5b9a\u4e49 Getter \u548c Setter \u65b9\u6cd5\u65f6\u4fdd\u5b58\u3002<\/li>\n<li>\u53ea\u6709\u5f53\u53d8\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u624d\u4f1a\u5c06\u5176\u4fdd\u5b58\u5230 XML \u6587\u4ef6\u4e2d\u3002<\/li>\n<li>\u8981\u4fdd\u5b58\u7684\u5bf9\u8c61\u4e5f\u53ef\u4ee5\u6307\u5b9a\u4e3a java.util.HashMap\u3001java.util.ArrayList \u7b49\u3002\u8fd9\u5bf9\u4e8e\u4ee5\u7b80\u5355\u7684\u65b9\u5f0f\u5b58\u50a8\u5bf9\u8c61\u7684\u72b6\u6001\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 400px;\" class=\"src\" onclick=\"this.focus();this.select()\">\/**<br \/>\n * java.beans.XMLEncoder\u3092\u4f7f\u7528\u3057\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8[object]\u3092\u3001<br \/>\n * \u6307\u5b9a\u3057\u305f\u30d1\u30b9[path]\u306b\u3001XML\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002<br \/>\n * \u203b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8[object]\u304cJavaBeans\u306e\u6163\u4f8b\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u5834\u5408\u3001<br \/>\n * \u3000\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30c7\u30fc\u30bf\u3082\u4fdd\u5b58\u3067\u304d\u307e\u3059\u3002<br \/>\n * \u203b\u4fdd\u5b58\u3057\u305fXML\u30d5\u30a1\u30a4\u30eb\u306fjava.beans.XMLDecoder\u3067\u5fa9\u5143\u3059\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n * @param path \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4fdd\u5b58\u3059\u308b\u30d1\u30b9\u3002<br \/>\n *              \u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u53ef\u80fd\u3067\u3042\u308c\u3070\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\n * @param object \u4fdd\u5b58\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<br \/>\n * @throws FileNotFoundException<br \/>\n *                 \u6307\u5b9a\u3055\u308c\u305f\u30d1\u30b9\u540d\u3067\u793a\u3055\u308c\u308b\u30d5\u30a1\u30a4\u30eb\u304c\u958b\u3051\u306a\u304b\u3063\u305f\u5834\u5408<br \/>\n *\/<br \/>\npublic static synchronized void writeXML(String path, Object object)<br \/>\n        throws IOException {<br \/>\n    XMLEncoder enc = null;<br \/>\n    ByteArrayOutputStream out = new ByteArrayOutputStream();<br \/>\n    FileOutputStream fileStream = null;<br \/>\n    try {<br \/>\n        \/\/ \u5148\u306b\u30e1\u30e2\u30ea\u4e2d\u306bXML\u30c7\u30fc\u30bf\u3092\u51fa\u529b\u3059\u308b<br \/>\n        enc = new XMLEncoder(out);<br \/>\n        enc.writeObject(object);<br \/>\n        enc.close(); \/\/ close()\u306e\u4e2d\u3067flush()\u304c\u547c\u3070\u308c\u308b\u3002<br \/>\n        byte[] xmlbuff = out.toByteArray();<\/p>\n<p>        \/\/ \u8f93\u51fa\u5b57\u8282\u6570\u636e\u5230\u6587\u4ef6<br \/>\n        fileStream = new FileOutputStream(\u8def\u5f84);<br \/>\n        fileStream.write(xmlbuff);<br \/>\n        fileStream.flush();<br \/>\n    } \u6700\u540e {<br \/>\n        if (enc != null) {<br \/>\n            enc.close();<br \/>\n        }<br \/>\n        \u5982\u679c\uff08\u8f93\u51fa\uff01=\u7a7a\uff09{<br \/>\n            \u5173\u95ed();<br \/>\n        }<br \/>\n        if (fileStream != null) {<br \/>\n            \u6587\u4ef6\u6d41.close();<br \/>\n        }<br \/>\n    }<br \/>\n}<br \/>\n\/**<br \/>\n * \u4ece\u6307\u5b9a\u8def\u5f84[path]\u5904\u7684XML\u6587\u4ef6\u6062\u590d\u5bf9\u8c61\u3002<br \/>\n * *XML \u6587\u4ef6\u5fc5\u987b\u4f7f\u7528 java.beans.XMLEncoder \u4fdd\u5b58\u3002<br \/>\n * @param path \u5bf9\u8c61\u5b58\u50a8\u7684\u8def\u5f84\u3002<br \/>\n * @\u629b\u51faFileNotFoundException<br \/>\n * \u5982\u679c\u6307\u5b9a\u8def\u5f84\u540d\u6307\u793a\u7684\u6587\u4ef6\u4e0d\u5b58\u5728<br \/>\n *\/<br \/>\n\u516c\u5171\u9759\u6001\u5bf9\u8c61 readXML\uff08\u5b57\u7b26\u4e32\u8def\u5f84\uff09\u629b\u51fa FileNotFoundException {<br \/>\n    XMLDecoder d = null;<br \/>\n    \u5c1d\u8bd5 {<br \/>\n        d = \u65b0 XMLDecoder(\u65b0 BufferedInputStream(<br \/>\n                \u65b0\u7684 FileInputStream(\u8def\u5f84)));<br \/>\n        \u8fd4\u56de d.readObject();<br \/>\n    } \u6700\u540e {<br \/>\n        \u5982\u679c\uff08d\uff01=\u7a7a\uff09{<br \/>\n            d.close();<br \/>\n        }<br \/>\n    }<br \/>\n}<br \/>\n<\/textarea><\/p>\n<p>*\u4f7f\u7528\u4e0b\u9762\u7684\u7c7b\u4f5c\u4e3a\u8981\u4fdd\u5b58\u7684\u7c7b\u7684\u793a\u4f8b\u3002<br \/>\n<textarea readonly=\"readonly\" style=\"font-size: 13px;height: 250px\" class=\"src\" onclick=\"this.focus();this.select()\">public class FreeSoft {<br \/>\n    private String name;<br \/>\n    private String url;<br \/>\n    public String getName() {<br \/>\n        return name;<br \/>\n    }<br \/>\n    public void setName(String name) {<br \/>\n        this.name = name;<br \/>\n    }<br \/>\n    public String getUrl() {<br \/>\n        return url;<br \/>\n    }<br \/>\n    public void setUrl(String url) {<br \/>\n        this.url = url;<br \/>\n    }<br \/>\n}<br \/>\n<\/textarea><br \/>\n<\/p>\n<h2 class=\"common_title\"><a name=\"2\">\u6267\u884c\u7ed3\u679c<\/a><\/h2>\n<p>\u6267\u884c\u793a\u4f8b<br \/>\n<textarea readonly=\"readonly\" style=\"font-size: 13px;height: 250px\" class=\"src\" onclick=\"this.focus();this.select()\">public static void main(String[] args) {<br \/>\n    try {<br \/>\n        \/\/ FreeSoft\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057XML\u306b\u51fa\u529b<br \/>\n        FreeSoft freeSoft = new FreeSoft();<br \/>\n        freeSoft.setName(&#8220;Chat\uff06Messenger \u30c1\u30e3\u30c3\u30c8\u3082\u30e1\u30c3\u30bb\u30f3\u30b8\u30e3\u30fc\u3082\uff01\uff01&#8221;);<br \/>\n        freeSoft.setUrl(&#8220;https:\/\/chat-messenger.com\/&#8221;);<br \/>\n        writeXML(&#8220;C:\\\\FreeSoft.xml&#8221;,freeSoft);  <\/p>\n<p>        \/\/ \u4ece XML \u6062\u590d FreeSoft \u7c7b\u7684\u5b9e\u4f8b<br \/>\n        FreeSoft freeSoft2 = (FreeSoft)readXML(\u201cC:\\\\FreeSoft.xml\u201d);<br \/>\n        System.out.println(\u201c\u8f6f\u4ef6\u540d\u79f0\uff1a\u201d+freeSoft2.getName());<br \/>\n        System.out.println(\u201cURL:\u201d+freeSoft2.getUrl());<br \/>\n    } catch (\u5f02\u5e38 e) {<br \/>\n        e.printStackTrace();<br \/>\n    }<br \/>\n}<br \/>\n<\/textarea><br \/>\n\u8f93\u51fa\u7ed3\u679c<\/p>\n<pre class=\"console\">\u8f6f\u4ef6\u540d\u79f0\uff1a Chat &amp; Messenger \u804a\u5929\u548c\u4fe1\u4f7f\uff01\r\nURL: https:\/\/chat-messenger.com\/\r\n<\/pre>\n<p>\u25c6C:\\FreeSoft.xml \u5185\u5bb9\u3002<\/p>\n<pre class=\"sample_src\"><object>\r\n  \r\n   Chat &amp; Messenger \u804a\u5929\u548c\u4fe1\u4f7f\uff01&lt;\/string\r\n  &lt;\/void\r\n  \r\n   https:\/\/chat-messenger.com\/&lt;\/string\r\n  &lt;\/void\r\n &lt;\/ \u5bf9\u8c61 \r\n<\/pre>\n<h2 class=\"common_title\"><a name=\"3\">\u4f7f\u7528\u7cfb\u7edf\u65f6\u7684\u6ce8\u610f\u4e8b\u9879<\/a><\/h2>\n<p>\u4f46\u5728 Chat&amp;Messenger \u4e2d\u5b9e\u9645\u4f7f\u7528\u65f6\uff0c\u8fd9\u79cd\u60c5\u51b5\u6781\u4e3a\u7f55\u89c1\uff0c\u4f46\u6211\u4eec\u786e\u8ba4\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u5373\u4f7f\u7528 java.beans.XMLEncoder \u548c java.beans.XMLDecoder \u7c7b\u8f93\u51fa XML \u65f6\uff0c\u6587\u4ef6\u4f1a\u53d8\u6210 0 \u5b57\u8282\u3002XMLEncoder.<br \/>\n\u5982\u679c\u8bfb\u53d6\u7684\u662f 0 \u5b57\u8282\u6587\u4ef6\uff0c\"\u6807\u51c6\u9519\u8bef\u8f93\u51fa \"\u4e2d\u5c06\u8bb0\u5f55 ParseException\u3002<br \/>\n<br \/>\n\u539f\u56e0\u662f\u521b\u5efa FileOutputStream \u5b9e\u4f8b\u65f6\u6587\u4ef6\u53d8\u7a7a\u3002<br \/>\n\u6211\u76f8\u4fe1\u5f53 Java \u8fdb\u7a0b\u5728\u5b9e\u4f8b\u5316 FileOutputStream \u4e4b\u540e\u4f46\u5728\u8f93\u51fa XML \u6570\u636e\u4e4b\u524d\u5173\u95ed\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u3002<br \/>\n<br \/>\n\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cChat&amp;Messenger \u5df2\u521b\u5efa\u4e86\u4e00\u4e2a\u5907\u4efd\u6587\u4ef6\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 Java XMLEncoder \u4fdd\u5b58\u5bf9\u8c61\u5e76\u4f7f\u7528 XMLDecoder \u6062\u590d \u4f7f\u7528 Java XML \u4fdd\u5b58\u5bf9\u8c61 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/posts\/945"}],"collection":[{"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/comments?post=945"}],"version-history":[{"count":4,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/posts\/945\/revisions"}],"predecessor-version":[{"id":1880,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/posts\/945\/revisions\/1880"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/media?parent=945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/categories?post=945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/zh\/wp-json\/wp\/v2\/tags?post=945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}