First, specify the XML format, and the XML format I specify is as follows:
<?XML version= ' 1.0 ' encoding= ' utf-8 ' standalone= ' yes '?><message> <SMS> <Body>Airbnb 0</Body> <Date>1462162910995</Date> <Address>1380</Address> <type>1</type> </SMS><message>
I. Using an XML serializer to generate an XML file
//To generate an XML file using an XML serializer//1. Get the Serializer objectXmlSerializer xs =Xml.newserializer (); //2. InitializeFile File =NewFile (Environment.getexternalstoragedirectory (), "Sms2.xml"); Try{FileOutputStream fos=Newfileoutputstream (file); //encoding: Specifies what encoding to use to generate the XML fileXs.setoutput (FOS, "Utf-8"); //3. Start generating XML files//Encoding: Specifies the value of the encoding property in the head node//Standalone: Whether the XML file is independentXs.startdocument ("Utf-8",true); Xs.starttag (NULL, "message");//Start Node for(Message msg:list) {Xs.starttag (NULL, "SMS"); Xs.starttag (NULL, "Body"); Xs.text (Msg.getbody ()); Xs.endtag (NULL, "Body"); Xs.starttag (NULL, "Date"); Xs.text (Msg.getdate ()); Xs.endtag (NULL, "Date"); Xs.starttag (NULL, "Address"); Xs.text (Msg.getaddress ()); Xs.endtag (NULL, "Address"); Xs.starttag (NULL, "type"); Xs.text (Msg.gettype ()); Xs.endtag (NULL, "type"); Xs.endtag (NULL, "SMS"); } Xs.endtag (NULL, "message");//End Node//tell the serializer that the build is completexs.enddocument (); } Catch(Exception e) {e.printstacktrace (); }
Ii. using pull to parse an XML file
File File =NewFile (Environment.getexternalstoragedirectory (), "Sms2.xml"); Try{FileInputStream fis=Newfileinputstream (file); //get the Pull parser objectXmlpullparser XP =Xml.newpullparser (); //InitializeXp.setinput (FIS, "Utf-8"); //gets the event type of the current node, through the event type, we can know what node the current node is,//so that we can determine what we should do. intType =Xp.geteventtype (); Message msg=NULL; while(Type! =xmlpullparser.end_document) { //depending on the type of node, different operations are performed Switch(type) { CaseXmlpullparser.start_tag://gets the name of the current node. if("Message". Equals (Xp.getname ())) { //Create a Message collection ObjectList =NewArraylist<message>(); }Else if("SMS". Equals (Xp.getname ())) { //Create a message JavaBeanmsg =NewMessage (); }Else if("Body". Equals (Xp.getname ())) { //gets the text of the next node of the current node (that is, Airbnb 0)Msg.setbody (Xp.nexttext ()); }Else if("Date". Equals (Xp.getname ())) { //gets the text of the next node of the current node (that is, Airbnb 0)msg.setdate (Xp.nexttext ()); }Else if("Address". Equals (Xp.getname ())) { //gets the text of the next node of the current node (that is, Airbnb 0)msg.setaddress (Xp.nexttext ()); }Else if("Type". Equals (Xp.getname ())) { //gets the text of the next node of the current node (that is, Airbnb 0)Msg.settype (Xp.nexttext ()); } Break; CaseXmlpullparser.end_tag:if("SMS". Equals (Xp.getname ())) {List.add (msg); } Break; default: Break; } //move the pointer to the next node and return the event type for that nodeType =Xp.next (); } for(Message message:list) {System.out.println (message); } } Catch(FileNotFoundException e) {e.printstacktrace (); } Catch(xmlpullparserexception e) {e.printstacktrace (); } Catch(IOException e) {e.printstacktrace (); }
Generating an XML file using an XML serializer and parsing an XML file with pull
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