{"id":206636,"date":"2023-08-10T15:43:38","date_gmt":"2023-08-10T07:43:38","guid":{"rendered":"https:\/\/www.idc.net\/help\/206636\/"},"modified":"2023-08-10T15:43:38","modified_gmt":"2023-08-10T07:43:38","slug":"android-xml%e8%af%bb%e5%86%99%ef%bc%88%e5%85%ab%ef%bc%89","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/206636\/","title":{"rendered":"Android xml\u8bfb\u5199\uff08\u516b\uff09"},"content":{"rendered":"

java\u4ee3\u7801\uff1a<\/p>\n

\n \n 
    \n  \n  
  1. case<\/span> XmlPullParser.END_TAG: <\/span><\/span><\/li>\n  \n  
  2. name = parser.getName(); <\/span><\/li>\n  \n  
  3. if<\/span> (name.equalsIgnoreCase(ITEM) && <\/span><\/span><\/li>\n  \n  
  4. currentMessage != null<\/span>){ <\/span><\/span><\/li>\n  \n  
  5. messages.add(currentMessage); <\/span><\/li>\n  \n  
  6. } else<\/span> <\/span>if<\/span> (name.equalsIgnoreCase(CHANNEL)){ <\/span><\/span><\/li>\n  \n  
  7. done = true<\/span>; <\/span><\/span><\/li>\n  \n  
  8. } <\/span><\/li>\n  \n  
  9. break<\/span>; <\/span><\/span><\/li>\n  \n  
  10. } <\/span><\/li>\n  \n  
  11. eventType = parser.next(); <\/span><\/li>\n  \n  
  12. } <\/span><\/li>\n  \n  
  13. } catch<\/span> (Exception e) { <\/span><\/span><\/li>\n  \n  
  14. throw<\/span> <\/span>new<\/span> RuntimeException(e); <\/span><\/span><\/li>\n  \n  
  15. } <\/span><\/li>\n  \n  
  16. return<\/span> messages; <\/span><\/span><\/li>\n  \n  
  17. } <\/span><\/li>\n  \n  
  18. } <\/span><\/li>\n \n <\/ol><\/pre>\n
    pull \u89e3\u6790\u5668\u7684\u8fd0\u884c\u65b9\u5f0f\u4e0e SAX \u89e3\u6790\u5668\u76f8\u4f3c\u3002\u5b83\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u7684\u4e8b\u4ef6(\u5f00\u59cb\u5143\u7d20\u548c\u7ed3\u675f\u5143\u7d20)\uff0c\u4f46\u60a8\u9700\u8981\u4f7f\u7528 de >(parser.next()de > \u63d0\u53d6\u5b83\u4eec\u3002\u4e8b\u4ef6\u5c06\u4f5c\u4e3a\u6570\u503c\u4ee3\u7801\u88ab\u53d1\u9001\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u7b80\u5355 case-switch\u3002\u6ce8\u610f\uff0c\u89e3\u6790\u5e76\u672a\u50cf SAX \u89e3\u6790\u90a3\u6837\u76d1\u542c\u5143\u7d20\u7684\u7ed3\u675f\uff0c\u800c\u662f\u5728\u5f00\u59cb\u5904\u5b8c\u6210\u4e86\u5927\u90e8\u5206\u5904\u7406\u3002\u5728 \u6e05\u5355 10 \u7684\u4ee3\u7801\u4e2d\uff0c\u5f53\u67d0\u4e2a\u5143\u7d20\u5f00\u59cb\u65f6\uff0c\u60a8\u53ef\u4ee5\u8c03\u7528 de >parser.nextText()de > \u4ece XML \u6587\u6863\u4e2d\u63d0\u53d6\u6240\u6709\u5b57\u7b26\u6570\u636e\u3002\u8fd8\u9700\u6ce8\u610f\uff0c\u60a8\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u6807\u8bb0(\u5e03\u5c14\u53d8\u91cf de >donede >)\u6765\u786e\u5b9a\u4f55\u65f6\u5230\u8fbe\u611f\u5174\u8da3\u5185\u5bb9\u7684\u7ed3\u675f\u90e8\u5206\u3002\u8fd9\u5141\u8bb8\u60a8\u63d0\u65e9\u505c\u6b62\u8bfb\u53d6 XML \u6587\u6863\uff0c\u56e0\u4e3a\u60a8\u77e5\u9053\u4ee3\u7801\u5c06\u4e0d\u4f1a\u5173\u5fc3\u6587\u6863\u7684\u5176\u4f59\u90e8\u5206\u3002\u8fd9\u6709\u65f6\u975e\u5e38\u5b9e\u7528\uff0c\u7279\u522b\u662f\u5f53\u60a8\u53ea\u9700\u8981\u8bbf\u95ee\u4e00\u5c0f\u90e8\u5206 XML \u6587\u6863\u65f6\u3002\u901a\u8fc7\u5c3d\u5feb\u505c\u6b62\u89e3\u6790\uff0c\u60a8\u53ef\u4ee5\u6781\u5927\u5730\u51cf\u5c11\u89e3\u6790\u65f6\u95f4\u3002\u8fd9\u79cd\u4f18\u5316\u5bf9\u4e8e\u8fde\u63a5\u901f\u5ea6\u8f83\u6162\u7684\u79fb\u52a8\u8bbe\u5907\u5c24\u4e3a\u91cd\u8981\u3002pull \u89e3\u6790\u5668\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e9b\u6027\u80fd\u4f18\u52bf\u4ee5\u53ca\u6613\u7528\u6027\u3002\u5b83\u8fd8\u53ef\u4ee5\u7528\u4e8e\u7f16\u5199 XML\u3002<\/p>\n
    \u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4e00\u76f4\u4e13\u6ce8\u4e8e\u901a\u8fc7 Internet \u89e3\u6790 XML\u3002\u4f46\u662f\uff0c\u6709\u65f6\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u5c06 XML \u53d1\u9001\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u3002\u663e\u7136\uff0c\u60a8\u53ef\u4ee5\u53ea\u4f7f\u7528\u4e00\u4e2a de >StringBuilderde > \u6765\u521b\u5efa XML \u5b57\u7b26\u4e32\u3002\u53e6\u4e00\u79cd\u5907\u9009\u65b9\u6cd5\u6765\u81ea \u6e05\u5355 11 \u4e2d\u7684 Pull \u89e3\u6790\u5668\u3002<\/p>\n
    \u6e05\u5355 11. \u4f7f\u7528 pull \u89e3\u6790\u5668\u7f16\u5199 XML<\/strong><\/p>\n
    \n \n 
      \n  \n  
    1. private<\/span> String writeXml(List< Message > messages){ <\/span><\/span><\/li>\n  \n  
    2. XmlSerializer serializer = Xml.newSerializer(); <\/span><\/li>\n  \n  
    3. StringWriter writer = new<\/span> StringWriter(); <\/span><\/span><\/li>\n  \n  
    4. try<\/span> { <\/span><\/span><\/li>\n  \n  
    5. serializer.setOutput(writer); <\/span><\/li>\n  \n  
    6. serializer.startDocument(\"UTF-8\"<\/span>, <\/span>true<\/span>); <\/span><\/span><\/li>\n  \n  
    7. serializer.startTag(\"\"<\/span>, <\/span>\"messages\"<\/span>); <\/span><\/span><\/li>\n  \n  
    8. serializer.attribute(\"\"<\/span>, <\/span>\"number\"<\/span>, String.valueOf(messages.size())); <\/span><\/span><\/li>\n  \n  
    9. for<\/span> (Message msg: messages){ <\/span><\/span><\/li>\n  \n  
    10. serializer.startTag(\"\"<\/span>, <\/span>\"message\"<\/span>); <\/span><\/span><\/li>\n  \n  
    11. serializer.attribute(\"\"<\/span>, <\/span>\"date\"<\/span>, msg.getDate()); <\/span><\/span><\/li>\n  \n  
    12. serializer.startTag(\"\"<\/span>, <\/span>\"title\"<\/span>); <\/span><\/span><\/li>\n  \n  
    13. serializer.text(msg.getTitle()); <\/span><\/li>\n  \n  
    14. serializer.endTag(\"\"<\/span>, <\/span>\"title\"<\/span>); <\/span><\/span><\/li>\n  \n  
    15. serializer.startTag(\"\"<\/span>, <\/span>\"url\"<\/span>); <\/span><\/span><\/li>\n  \n  
    16. serializer.text(msg.getLink().toExternalForm()); <\/span><\/li>\n  \n  
    17. serializer.endTag(\"\"<\/span>, <\/span>\"url\"<\/span>); <\/span><\/span><\/li>\n  \n  
    18. serializer.startTag(\"\"<\/span>, <\/span>\"body\"<\/span>); <\/span><\/span><\/li>\n  \n  
    19. serializer.text(msg.getDescription()); <\/span><\/li>\n  \n  
    20. serializer.endTag(\"\"<\/span>, <\/span>\"body\"<\/span>); <\/span><\/span><\/li>\n  \n  
    21. serializer.endTag(\"\"<\/span>, <\/span>\"message\"<\/span>); <\/span><\/span><\/li>\n  \n  
    22. } <\/span><\/li>\n  \n  
    23. serializer.endTag(\"\"<\/span>, <\/span>\"messages\"<\/span>); <\/span><\/span><\/li>\n  \n  
    24. serializer.endDocument(); <\/span><\/li>\n  \n  
    25. return<\/span> writer.toString(); <\/span><\/span><\/li>\n  \n  
    26. } catch<\/span> (Exception e) { <\/span><\/span><\/li>\n  \n  
    27. throw<\/span> <\/span>new<\/span> RuntimeException(e); <\/span><\/span><\/li>\n  \n  
    28. } <\/span><\/li>\n  \n  
    29. } <\/span><\/li>\n \n <\/ol><\/pre>\n
      de >XmlSerializerde > \u7c7b\u662f \u524d\u4e00\u90e8\u5206 \u6240\u4f7f\u7528\u7684 de >XmlPullParserde > \u5305\u7684\u4e00\u90e8\u5206\u3002\u5b83\u6ca1\u6709\u63d0\u53d6\u4e8b\u4ef6\uff0c\u800c\u662f\u5c06\u5b83\u4eec\u63a8\u51fa\u5230\u6570\u636e\u6d41\u6216\u7f16\u5199\u7a0b\u5e8f\u4e2d\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u5b83\u4ec5\u4ec5\u5c06\u4e8b\u4ef6\u63a8\u9001\u5230\u4e86\u4e00\u4e2a de >java.io.StringWriterde > \u5b9e\u4f8b\u4e2d\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u76f4\u89c2\u7684 API\uff0c\u901a\u8fc7\u5404\u79cd\u65b9\u6cd5\u5f00\u59cb\u548c\u7ed3\u675f\u6587\u6863\u3001\u5904\u7406\u5143\u7d20\u4ee5\u53ca\u6dfb\u52a0\u6587\u672c\u6216\u5c5e\u6027\u3002\u8fd9\u662f de >StringBuilderde > \u7684\u4e00\u79cd\u51fa\u8272\u7684\u66ff\u6362\u65b9\u6848\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u66f4\u52a0\u8f7b\u677e\u5730\u786e\u4fdd\u60a8\u7684 XML \u5177\u6709\u826f\u597d\u7ed3\u6784\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      java\u4ee3\u7801\uff1a case XmlPullParser.END_TAG:  name&nbs […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[195111],"tags":[],"class_list":["post-206636","post","type-post","status-publish","format-standard","hentry","category-android"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/206636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=206636"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/206636\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=206636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=206636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=206636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}