xml文件读取到数据库

xml文件读取到数据库

 

第一步，导包

c3p0，dom4j，jaxen，MySQL-connector

第二步  xml文件，config文件

第三步 javabean

第四步 c3p0的工具类

第五步 读取xml文件  SAXReader中的xpath的方式

首先需要map集合添加别名，遍历读取到的文件，

给了list<javabean>

第六步，list<javabean>给了c3p0的连接数据库的类

 

 

 

第一步，导包

c3p0，dom4j，jaxen，MySQL-connector

第二步  xml文件，config文件

xml文件，config文件根据需求具体实现

Xsd的约束

<?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>

第三步 javabean

根据需求在具体做

第四步 c3p0的工具类

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;

}

}

}

 

第五步 读取xml文件  SAXReader中的xpath的方式

首先需要map集合添加别名，遍历读取到的文件，

给了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.DocumentException;

import org.dom4j.Element;

import org.dom4j.io.SAXReader;

import org.junit.Test;

import com.itwjx.entity.XMLDomain;

import com.itwjx.util.C3P0Util;

/**

* 数据库名称 demo

*  表名userDomain

*  字段：  id int

*   name varchar

*   birthday date

*   hobby char

* @author WBH

*

*/

public class WrokXmlAns {

@Test

public void readXMLtoDB(){

try {

//读取XML文件数据

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

//将数据保存到数据库

saveXMLDateToDB(domains);

} catch (Exception e) {

e.printStackTrace();

}

}

private List<XMLDomain> readXML(String path) throws DocumentException, 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 hobby = element.element("hobby").getText();

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

Date date = df.parse(birthday);

XMLDomain domian = new XMLDomain(

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

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.getHobby());

ps.addBatch();

}

ps.executeBatch();

} catch (Exception e) {

e.printStackTrace();

} finally {

C3P0Util.release(null, ps, conn);

}

}

}

 

第六步，list<javabean>给了c3p0的连接数据库的类

 

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.getHobby());

ps.addBatch();

}

ps.executeBatch();

} catch (Exception e) {

e.printStackTrace();

} finally {

C3P0Util.release(null, ps, conn);

}

}