Parse XML files

Package com.cn. javase. dom4j; import Java. io. file; import Java. io. filewriter; import Java. io. ioexception; import Java. SQL. connection; import Java. SQL. preparedstatement; import Java. SQL. resultset; import Java. SQL. sqlexception; import Java. SQL. statement; import Java. util. date; import Java. util. iterator; import Java. util. list; import Org. dom4j. document; import Org. dom4j. extends entexception; import Org. dom4j. documenthe Lper; import Org. dom4j. element; import Org. dom4j. node; import Org. dom4j. io. outputformat; import Org. dom4j. io. saxreader; import Org. dom4j. io. xmlwriter; public class writexml extends basedao {/*** @ Param ARGs * @ throws sqlexception * @ throws classnotfoundexception * @ throws ioexception */private connection conn; public static void main (string [] ARGs) throws sqlexception, classnotfoundexception {// todo auto-G Enerated method stub // new writexml (). writexmlfile ("D: // person. XML "); New writexml (). readxmlfile ("D: // person. XML ");}/*** @ return defines a method for reading data from the database and saving the dataset to the XML file; * @ throws classnotfoundexception * @ throws sqlexception */Public int writexmlfile (string file) throws classnotfoundexception, sqlexception {conn = This. getconn (); statement ST = NULL; try {ST = Conn. createstatement ();} catch (sqlexcepti On E1) {// todo auto-generated Catch Block e1.printstacktrace ();} string SQL = "select * From person"; resultset rs = st.exe cutequery (SQL ); document document = incluenthelper. createdocument (); // format file output; document. setxmlencoding ("gb2312"); Date = new date (); string S = date. tolocalestring (); int value = 0; // mark whether the file is successfully written; // Add a comment for XML; document. addcomment ("reads data from the table" person "in the Database" meemei "to" person. XM L file! Modified on: "+ S); element root = document. addelement ("meemei"); outputformat format = outputformat. createprettyprint (); format. setencoding ("gb2312"); While (RS. next () {// read data from the database integer id = Rs. getint (1); string user = Rs. getstring (2); float salary = Rs. getfloat (3); integer age = Rs. getint (4); string dept1 = Rs. getstring (5); system. out. println (ID + User); element = root. addelement ("person "); Element id = element. addelement ("ID"); element pname = element. addelement ("pname"); element psalary = element. addelement ("psalary"); element page = element. addelement ("page"); element dept = element. addelement ("Dept"); // put the data read from the database into XML; id. addtext (string. valueof (ID); pname. addtext (User); psalary. addtext (string. valueof (salary); page. addtext (string. valueof (AGE); Dept. addtext (dept1); xmlwrit Er writer; // construct the file output stream; try {writer = new xmlwriter (New filewriter (new file (File), format); writer. write (document); writer. close (); value = 1; // If execution succeeds, 1 is returned;} catch (ioexception e) {// todo auto-generated Catch Block E. printstacktrace () ;}} return value;}/*** read data from an XML file and save it to the database. ** @ return */Public int readxmlfile (string file) {conn = This. getconn (); saxreader reader = new saxreader (); int va Lue = 0; try {document DOC = reader. read (new file (File); element = Doc. getrootelement (); system. out. println ("root node:" + element. getname (); // obtain the root node list <element> List = element. elements (); iterator <element> it = List. iterator (); string database = element. getname (); system. out. println ("Database Name:" + database); string table = ""; integer id = 0; string pname = ""; float psalary = 0.0f; integer Pa GE = 0; string dept = ""; while (it. hasnext () {Element E = it. next (); system. out. println ("-------------------------------------"); system. out. println ("table name:" + E. getname (); table = E. getname (); iterator itor = E. elementiterator (); While (itor. hasnext () {// ------------- ID ------------ node idnode = (node) itor. next (); string idname = idnode. getname (); string idvalue = idnode. gettext (); Id = integer. valueof (idvalue); system. out. println ("node:" + idname + "----> value:" + idvalue); // ------------ pname ------------- node namenode = (node) itor. next (); string namename = namenode. getname (); string namevalue = namenode. gettext (); pname = namevalue; system. out. println ("node:" + namename + "----> value:" + namevalue); // ------------- psalary ------------- node salarynode = (node) itor. next (); string salaryname = Salarynode. getname (); string salaryvalue = salarynode. gettext (); psalary = float. valueof (salaryvalue); system. out. println ("node:" + salaryname + "----> value:" + salaryvalue); // ------------ page -------------- node agenode = (node) itor. next (); string agename = agenode. getname (); string agevalue = agenode. gettext (); page = integer. valueof (agevalue); system. out. println ("node:" + agename + "----> value:" + agevalue );// -------------- Dept -------------- node deptnode = (node) itor. next (); string deptname = deptnode. getname (); string deptvalue = deptnode. gettext (); dept = deptvalue; system. out. println ("node:" + deptname + "----> value:" + deptvalue ); string SQL = "insert into" + Table + "values (?,?,?,?,?) "; Try {preparedstatement PS = Conn. preparestatement (SQL); PS. setint (1, ID); PS. setstring (2, pname); PS. setfloat (3, psalary); PS. setint (4, page); PS. setstring (5, Dept); ps.exe cuteupdate ();} catch (sqlexception E1) {// todo auto-generated Catch Block e1.printstacktrace ();} system. out. println (SQL) ;}} catch (incluentexception e) {// todo auto-generated Catch Block E. printstacktrace ();} return value ;}}