parsing XML files with dom4j in Java

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Note: To use dom4j development, download dom4j corresponding jar file

title: The backend uses dom4j to parse the Student.xml file and return to the List<student> collection

XML to parse:

<?XML version= "1.0" encoding= "UTF-8"?><Classes>    <classname= "ST01">        <StudentID= "10001">User1</Student>        <StudentID= "10002">User2</Student>        <StudentID= "10003">User3</Student>    </class>    <classname= "ST02">        <StudentID= "10004">User4</Student>        <StudentID= "10005">User5</Student>        <StudentID= "10006">User6</Student>    </class>    <classname= "ST03">        <StudentID= "10007">User7</Student>        <StudentID= "10008">User8</Student>        <StudentID= "10009">User9</Student>    </class>    <classname= "ST04">        <StudentID= "10010">User10</Student>        <StudentID= "10011">User12</Student>        <StudentID= "10012">User13</Student>    </class>    <classname= "ST05">        <StudentID= "10013">User14</Student>        <StudentID= "10014">User15</Student>        <StudentID= "10015">User16</Student>    </class></Classes>

Java Parsing XML code:

/** * @authorhh*/ Public classXmlutil {/*** Read XML student list information *@return     */     PublicList<student>liststudent () {//Create a Saxreader objectSaxreader reader=NewSaxreader (); Document Document=NULL; Try {            //read a file into a Document object by using the Read methodDocument = Reader.read (NewFile ("/users/mac/documents/students.xml")); } Catch(documentexception e) {e.printstacktrace (); }        //gets the root node element objectElement node =document.getrootelement (); returnElementmethod (node); }    /*** Get information from a node *@paramnode *@return     */    PrivateList<student>Elementmethod (Element node) {List<Student> list =NewArraylist<student>(); //get all class nodeslist<element> Elementclass = node.elements ("Class");  for(Element aclass:elementclass) {//get all student nodesList<element> elelmentstu=aclass.elements ("Student");  for(Element element:elelmentstu) {//Create student ObjectsStudent stu =NewStudent (); //the value of name in the class nodeStu.setsclazz (Aclass.attribute ("name"). GetValue ()); //the value of the ID in the student nodeStu.setsid (Element.attribute ("id"). GetValue ()); //string value in the student nodeStu.setsname (Element.getstringvalue ());            List.add (Stu); }        }        returnlist; }}

Entity class:

/** * @authorhh*/ Public classStudent {PrivateString sname; PrivateString SID; PrivateString Sclazz;  PublicString Getsname () {returnsname; }     Public voidsetsname (String sname) { This. sname =sname; }     PublicString GetSID () {returnSID; }     Public voidSetsid (String sid) { This. Sid =SID; }     PublicString Getsclazz () {returnSclazz; }     Public voidSetsclazz (String sclazz) { This. Sclazz =Sclazz; } @Override PublicString toString () {return"student{" + "sname=" + sname + "\" + ", sid= '" + sid + "\" + ", sclazz= '" + sclazz + ' + ' + '} '; }}

View Code

@Test Code:

 Public class studentdaotest {    @Test    publicvoid  testliststudent () {        ListNew  Xmlutil (). Liststudent ();          for (Student student:list) {            System.out.println (Student);     }}}

View Code

Operation Result:

parsing XML files with dom4j in Java