The xml file is read to the database, and the xml file is read to the database.

Source: Internet
Author: User
Tags domian

The xml file is read to the database, and the xml file is read to the database.

Read xml files to the database

 

Step 1: import the package

C3p0, dom4j, jaxen, MySQL-connector

Step 2: xml file, config File

Step 3: javabean

Step 4: tool class of c3p0

Step 5: Read the xpath in the xml file SAXReader

First, you need to add aliases to the map set to traverse the files read,

List <javabean>

Step 6: list <javabean> gives the c3p0 database connection class

 

 

 

Step 1: import the package

C3p0, dom4j, jaxen, MySQL-connector

 

Step 2: xml file, config File

Xml file. The config file is implemented as needed

Xsd Constraints

<? Xml version ="1.0"Encoding =UTF-8"?>

<Schema

Xmlns =Http://www.w3.org/2001/XMLSchema" 

TargetNamespace ="XiaoGe" 

ElementFormDefault ="Qualified">

<Element name ="Group">

<ComplexType>

<Sequence maxOccurs ="8"MinOccurs ="1">

<Element name ="Person">

<ComplexType>

<Sequence>

<Element name ="Name"Type ="String"> </Element>

<Element name ="Sex"Type ="String"> </Element>

<Element name ="Age"Type ="String"> </Element>

</Sequence>

</ComplexType>

</Element>

</Sequence>

<Attribute name ="Id"Type ="Int"Use ="Required"> </Attribute>

</ComplexType>

</Element>

</Schema>

Step 3: javabean

Perform

Step 4: tool class of c3p0

Package com. itheima. util;

 

Import java. SQL. Connection;

Import java. SQL. ResultSet;

Import java. SQL. SQLException;

Import java. SQL. Statement;

 

Import com. mchange. v2.c3p0. ComboPooledDataSource;

 

Public class C3P0Util {

Private static final ComboPooledDataSource DATASOURCE = new ComboPooledDataSource ();

 

Public static Connection getConn (){

Try {

Return DATASOURCE. getConnection ();

} Catch (SQLException e ){

E. printStackTrace ();

}

Return null;

}

 

Public static void release (ResultSet rs, Statement stmt, Connection conn ){

If (rs! = Null ){

Try {

Rs. close ();

} Catch (SQLException e ){

E. printStackTrace ();

}

Rs = null;

}

If (stmt! = Null ){

Try {

Stmt. close ();

} Catch (SQLException e ){

E. printStackTrace ();

}

Stmt = null;

}

If (conn! = Null ){

Try {

Conn. close ();

} Catch (SQLException e ){

E. printStackTrace ();

}

Conn = null;

}

}

}

 

Step 5: Read the xpath in the xml file SAXReader

First, you need to add aliases to the map set to traverse the files read,

List <javabean>

 

Package com. itwjx. xml;

 

Import java. SQL. Connection;

Import java. SQL. PreparedStatement;

Import java. text. ParseException;

Import java. text. SimpleDateFormat;

Import java. util. ArrayList;

Import java. util. Date;

Import java. util. HashMap;

Import java. util. List;

Import java. util. Map;

 

Import org. dom4j. Document;

Import org. dom4j. extends entexception;

Import org. dom4j. Element;

Import org. dom4j. io. SAXReader;

Import org. junit. Test;

 

Import com. itwjx. entity. XMLDomain;

Import com. itwjx. util. C3P0Util;

 

/**

* Database name demo

* Table Name userDomain

* Field: id int

* Name varchar

* Birthday date

* Holobby char

* @ Author WBH

*

*/

Public class WrokXmlAns {

@ Test

Public void readXMLtoDB (){

Try {

// Read XML file data

List <XMLDomain> domains = readXML ("src/aaa. xml ");

// Save the data to the database

SaveXMLDateToDB (domains );

} Catch (Exception e ){

E. printStackTrace ();

}

}

 

 

Private List <XMLDomain> readXML (String path) throws into entexception, ParseException {

SAXReader read = new SAXReader ();

Document document = read. read (path );

Map <String, String> map = new HashMap <String, String> ();

Map. put ("wbh", "xiaofan ");

Read. getDocumentFactory (). setXPathNamespaceURIs (map );

 

List <Element> nodes = document. selectNodes ("// wbh: member ");

 

List <XMLDomain> domains = new ArrayList <XMLDomain> ();

For (Element element: nodes ){

String id = element. attributeValue ("no ");

String name = element. element ("name"). getText ();

String birthday = element. element ("birthday"). getText ();

String holobby = element. element ("holobby"). getText ();

 

SimpleDateFormat df = new SimpleDateFormat ("yyyy-MM-dd ");

Date date = df. parse (birthday );

 

XMLDomain domian = new XMLDomain (

Integer. parseInt (id), name, date, holobby );

Domains. add (domian );

}

Return domains;

}

 

 

Private void saveXMLDateToDB (List <XMLDomain> domains ){

//

Connection conn = null;

PreparedStatement ps = null;

Try {

Conn = C3P0Util. getConn ();

Ps = conn. prepareStatement ("insert into userDomain values (?,?,?,?) ");

For (XMLDomain user: domains ){

 

Ps. setInt (1, user. getId ());

Ps. setString (2, user. getName ());

Ps. setDate (3, new java. SQL. Date (user. getBirthday (). getTime ()));

Ps. setString (4, user. getholobby ());

 

Ps. addBatch ();

}

 

Ps.exe cuteBatch ();

} Catch (Exception e ){

E. printStackTrace ();

} Finally {

C3P0Util. release (null, ps, conn );

}

}

}

 

Step 6: list <javabean> gives the c3p0 database connection class

 

Private void saveXMLDateToDB (List <XMLDomain> domains ){

//

Connection conn = null;

PreparedStatement ps = null;

Try {

Conn = C3P0Util. getConn ();

Ps = conn. prepareStatement ("insert into userDomain values (?,?,?,?) ");

For (XMLDomain user: domains ){

 

Ps. setInt (1, user. getId ());

Ps. setString (2, user. getName ());

Ps. setDate (3, new java. SQL. Date (user. getBirthday (). getTime ()));

Ps. setString (4, user. getholobby ());

 

Ps. addBatch ();

}

 

Ps.exe cuteBatch ();

} Catch (Exception e ){

E. printStackTrace ();

} Finally {

C3P0Util. release (null, ps, conn );

}

}

 

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