1. 从mysql读取数据结果集装成xml文件
/** * 使用SAX同时生成遍历结果集的方法xml文件。 * @param rs * @param filePath * @throws Exception */ public static void resultSet2XML(ResultSet rs, String filePath) throws Exception{ // 创建一个SAX转换工厂 SAXTransformerFactory fac = (SAXTransformerFactory)SAXTransformerFactory.newInstance(); // 创建一个TransformerHandler实例 TransformerHandler handler = fac.newTransformerHandler(); // 创建一个handler转换器 Transformer transformer = handler.getTransformer(); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION,"no"); // 是否忽略xml声明 transformer.setOutputProperty(OutputKeys.METHOD,"xml"); transformer.setOutputProperty(OutputKeys.ENCODING,"UTF-8"); // 设置输出的编码方法 transformer.setOutputProperty(OutputKeys.INDENT,"yes"); // 是否自动添加额外的空白? 换行 transformer.setOutputProperty(OutputKeys.STANDALONE,"no"); // 创建一个Result实例连接到XML文件 FileOutputStream fos = new FileOutputStream(filePath); Result resultxml = new StreamResult(fos); handler.setResult(resultxml); ResultSetMetaData rsmd = rs.getMetaData(); String value = ""; byte[] byteValue = null; // 打开doc对象 handler.startDocument(); // 创建属性实例 AttributesImpl atts = new AttributesImpl(); // 创建元素节点,并构建XML内容 handler.startElement(uri, 命名空间, 元素名, 属性); ///不填null handler.startElement("","","RECORDS",atts); if(rs.next()){ rs.previous(); while(rs.isLast() == false){ rs.next(); atts.clear(); handler.startElement("","","RECORD",null); for(int i=1;i<=rsmd.getColumnCount();i ){ int columnType = rsmd.getColumnType(i); System.out.println("columnType:" columnType); String columnName = rsmd.getColumnLabel(i);//.toLowerCase(); System.out.println("columnName:" columnName); handler.startElement("","",columnName,null); if(columnType == -4){ byteValue = rs.getBytes(i); if(byteValue != null && byteValue.length>0){ System.out.println("byteValue:" encode(byteValue)); } }else{ value = rs.getString(i); System.out.println("value:" value); } if(value == null && (byteValue == null || byteValue.length == 0)){ // 设置标签内容 handler.characters(null,0,0); }else{ // 设置标签内容 if(value != null){ handler.characters(value.toCharArray(),0,value.length()); } if(byteValue!= null ){ handler.characters(encode(byteValue).toCharArray(),0, byteValue.length); } } // // 结束hanlder.endElement("", "", 元素名) handler.endElement("","",columnName); value = null; byteValue = null; } handler.endElement("","","RECORD"); } } handler.endElement("","","RECORDS"); // 关闭doc对象 handler.endDocument(); fos.close(); } /** * byte数组 转换为 Base64字符串 */ public static String encode(byte[] data) { String body = new BASE64Encoder().encode(data); if(body.contains("\r\n")){ body = body.replace("\r\n",""); } return body; }
2. 解析xml文件封装成List
/** * SAX将xml转sql语句 * 备注: SAX因为是事件驱动分析,相当于从上到下分析,所以继承DefaultHandler重写其中的分析方法 * @param filePath * @throws Exception */ public static void XML2Sql(String filePath) throws Exception{ File inputFile = new File(filePath); // 创建一个SAX解析工厂 SAXParserFactory factory = SAXParserFactory.newInstance(); // 创建一个SAX转换工具 SAXParser saxParser = factory.newSAXParser(); // 解析XML SAXParserHandler handler = new SAXParserHandler(); saxParser.parse(inputFile, handler); List<Map<String, Object>> list = handler.getList(); for (Map<String, Object> map : list) { System.out.println("==================开始====================="); for (Map.Entry<String, Object> m : map.entrySet()) { System.out.print(m.getKey() " "); System.out.println(m.getValue()); } System.out.println("==================结=====================");
}
}
SAXParserHandler.java
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class SAXParserHandler extends DefaultHandler {
private Map<String,Object> map = new HashMap<>();
private List<Map<String,Object>> list = new ArrayList<>();
private String content = null;
//文档开始
@Override
public void startDocument() throws SAXException {
System.out.println("文档开始");
}
//xml元素的开始
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
System.out.println("元素名称="+qName);
}
//xml元素内容
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
content = new String(ch, start, length);
System.out.println("start="+start);
System.out.println("元素内容="+content);
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
if(content.equals("\n")) content="";
map.put(qName,content);
if (qName.equals("RECORD")) {
list.add(map);
map = new HashMap<>();
}
}
//文档结束
@Override
public void endDocument() throws SAXException {
System.out.println("文档结束");
}
List<Map<String, Object>> getList() {
return list;
}
}
3. 测试方法
public static void get() throws Exception {
String driver = "com.mysql.cj.jdbc.Driver";
String url = "jdbc:mysql://192.168.0.199:3306/zkxausi?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&serverTimezone=UTC&useSSL=false" ;
String user = "root";
String password = "Zkxa~123";
Connection conn = null;
Statement stmt = null;
Class.forName(driver);
conn = DriverManager.getConnection(url, user, password);
stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
ResultSet result = stmt.executeQuery("SELECT * FROM t_security_user");
String filePath = "E://user.xml";
XmlUtils.resultSet2XML(result,filePath);
System.out.println("===========================华丽的分割线===============================");
XmlUtils.XML2Sql(filePath);
}
4. 测试结果
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <RECORDS> <RECORD> <id>20</id> <username>rthr</username> <password>$2a$10$SH9nQnfjK7bEPG.fnoOdt/VyG</password> <type>1</type> <level>1</level> <online>2</online> <login_ip>152.168.0.111</login_ip> <real_name>管理员</real_name> <hard_certi/> <cert_serial_no/> <telphone>123456</telphone> <mail>123@123.123</mail> <ip_start>1.0.0.0</ip_start> <ip_end>254.254.254.254</ip_end> <login_start>00:00</login_start> <login_end>23:59</login_end> <enable>1</enable> <role_id>0</role_id> <res_keys/> <head_portrait>1</head_portrait> <remark>刚刚</remark> <mark>3</mark> <creator/> <create_time>2021-03-30 14:36:32</create_time> <updator/> <update_time>2021-12-29 09:27:32</update_time> </RECORD> <RECORD> <id>59</id> <username>洱海天域</username> <password>$2a$10$KIcMWVYgR5yOdynajUcr3.Zpm</password> <type>3</type> <level>1</level> <online>2</online> <login_ip>152.168.0.146</login_ip> <real_name>人事</real_name> <hard_certi>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</hard_certi> <cert_serial_no>82728A277D598757</cert_serial_no> <telphone/> <mail/> <ip_start>152.168.0.146</ip_start> <ip_end>152.168.0.146</ip_end> <login_start>00:00</login_start> <login_end>23:59</login_end> <enable>1</enable> <role_id>32</role_id> <res_keys>团日活动被淘汰你也见一面人的</res_keys> <head_portrait/> <remark/> <mark/> <creator/> <create_time>2021-12-27 16:15:34</create_time> <updator/> <update_time>2021-12-29 09:27:32</update_time> </RECORD> </RECORDS>