Serialization generation and parsing of XML files in Android

First, I put the entity class of person

Package net.loonggg.test;      public class Person {private int id;      Private String age;      private String name;      Private String sex;        Private String address;      public int getId () {return id;      } public void setId (int id) {this.id = ID;      } public String Getage () {return age;      public void Setage (String age) {this.age = age;      } public String GetName () {return name;      } public void SetName (String name) {this.name = name;      } public String Getsex () {return sex;      public void Setsex (String sex) {this.sex = sex;      } public String getaddress () {return address;      The public void setaddress (String address) {this.address = address;                  } @Override Public String toString () {return ' person [id= + ID + ', age= "+ Age +", name= "+ Name + ", sex= "+ Sex +", address= "+ address +"] ";   }    }

Second: The method for generating the XML file is as follows:

/** * Generates XML */private void Createxml () {XmlSerializer serializer = Xml.newserializer ();//XML File Raw          Generator file = new file (Environment.getexternalstoragedirectory (), "person.xml");          FileOutputStream fos = null;              try {fos = new FileOutputStream (file); Serializer.setoutput (FOS, "utf-8");//Set output stream and character encoding for XML generator serializer.startdocument ("Utf-8", true);//Start document. The parameters are character encoding and whether to maintain independent serializer.starttag (NULL, "persons");                  Start tags, which are: namespace and label name for (person person:list) {Serializer.starttag (null, "man");                    Serializer.attribute (NULL, "id", Person.getid () + ""); Serializer.starttag (NULL, "name");//start Tag Serializer.text (Person.getname ());//text content Seri                  Alizer.endtag (NULL, "name");//end tag Serializer.starttag (null, "sex"); Serializer.text (Person.getsex ());                    Serializer.endtag (null, "sex");                  Serializer.starttag (NULL, "age");                  Serializer.text (Person.getage ());                    Serializer.endtag (NULL, "age");                  Serializer.starttag (NULL, "address");                  Serializer.text (Person.getaddress ());                    Serializer.endtag (NULL, "address");                Serializer.endtag (null, "person"); } Serializer.endtag (NULL, "persons");//end tag serializer.enddocument ();//end XML document to Ast.maketext (Getapplicationcontext (), "Build succeeded.          ", Toast.length_short); } catch (Exception e) {toast.maketext (Getapplicationcontext (), "Build failed!
", Toast.length_short);          E.printstacktrace ();              } finally {try {fos.close ();              } catch (IOException e) {e.printstacktrace (); }          }        }

Then there is the way to parse the XML file:

/** * Parse XML file */private list<person> Pullxml () {try {File file = new file (En              Vironment.getexternalstoragedirectory (), "person.xml");              FileInputStream fis = new FileInputStream (file);              list<person> persons = NULL;              person person = null;              Xmlpullparser parser = Xml.newpullparser ();//Get XML parser parser.setinput (FIS, "utf-8");//input stream and character encoding, respectively              int type = Parser.geteventtype (); while (type! = xmlpullparser.end_document) {//Assuming the event is not equal to the document end event, continue looping the switch (type) {case X MlPullParser.START_TAG:if ("Persons". Equals (Parser.getname ())) {persons =                      New Arraylist<person> ();                          } else if (' person '. Equals (Parser.getname ())) {person = new person ();           String id = parser.getattributevalue (0);               Person.setid (Integer.parseint (id));                      } else if ("name". Equals (Parser.getname ())) {Person.setname (Parser.nexttext ());                      } else if ("Sex". Equals (Parser.getname ())) {Person.setsex (Parser.nexttext ());                      } else if ("Address". Equals (Parser.getname ())) {person.setaddress (Parser.nexttext ()); } else if ("Age". Equals (Parser.getname ())) {Person.setage (Parser.nexttext ()                      );                  } break; Case XmlPullParser.END_TAG:if ("person". Equals (Parser.getname ())) {persons                          . Add (person);                      person = null;                  } break;          } type = Parser.next ();//Continue next event} return persons; } catch (NumberformatexCeption e) {e.printstacktrace ();          } catch (FileNotFoundException e) {e.printstacktrace ();          } catch (Xmlpullparserexception e) {e.printstacktrace ();          } catch (IOException e) {e.printstacktrace ();      } return null;   }

again is part of the code called in Mainactivity:

public class Mainactivity extends Activity {private Button btn_create = null;      Private Button btn_pull = null;      Private TextView tv_show;        Private list<person> List = null;          @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);          Setcontentview (R.layout.activity_main);          Btn_create = (Button) Findviewbyid (r.id.createxml);          Btn_pull = (Button) Findviewbyid (r.id.pullxml);          Tv_show = (TextView) Findviewbyid (r.id.tvshow);          List = new arraylist<person> ();              for (int i = 0; i < 5; i++) {Person person = new person ();              Person.setage (i + 20 + "");              Person.setid (i);              Person.setname ("LOONGGG" + i);              Person.setsex ("male");              Person.setaddress ("Zhongnanhai" + i + 1 + "Main Street");          List.add (person);                } btn_create.setonclicklistener (New View.onclicklistener () {@Override public void OnClick (View v) {createxml ();            }          });  Btn_pull.setonclicklistener (New View.onclicklistener () {@Override public void OnClick (View v)              {Tv_show.settext (Pullxml (). toString ());      }          });   }  }

Serialization generation and parsing of XML files in Android