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reader_config.xml
<?xml version="1.0" encoding="UTF-8"?>
<config>
<db-info>
<driver-name>oracle.jdbc.driver.OracleDriver</driver-name>
<url>jdbc:oracle:thin:@192.168.1.100:1521:orcl</url>
<username>dys</username>
<password>dys</password>
</db-info>
</config>
ConfigReader.java
package com.deng.dys.util;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
public class ConfigReader {
private JdbcInfo jdbcInfo ;

// ¾²Ì¬µÄ˽ÓеijÉÔ±±äÁ¿
private static ConfigReader configReader = new ConfigReader();
// ²»ÔÊÐí±ðÈË·ÃÎÊ
private ConfigReader() {
try {
Document document = new SAXReader().read(Thread.currentThread()
.getContextClassLoader().getResourceAsStream(
"reader_config.xml"));
Element driverName = (Element)document.selectObject("/config/db-info/driver-name");
Element url = (Element)document.selectObject("/config/db-info/url");
Element username = (Element)document.selectObject("/config/db-info/username");
Element password = (Element)document.selectObject("/config/db-info/password");

jdbcInfo = new JdbcInfo();
jdbcInfo.setDriverName(driverName.getStringValue());
jdbcInfo.setPassword(password.getStringValue());
jdbcInfo.setUrl(url.getStringValue());
jdbcInfo.setUsername(username.getStringValue());
} catch (Exception e) {
e.printStackTrace();
}

}
// ¹«¹²µÄ¾²Ì¬µÄÈë¿Úµã·½·¨
public static ConfigReader getInstance() {
return configReader;
}
public JdbcInfo getJdbcInfo(){
return jdbcInfo;
}

//main method
public static void main(String args[]){
ConfigReader.getInstance().getJdbcInfo();
}
}

½«xmlµÄÐÅÏ¢·â×°ÔÚÒ»¸öÀàÖÐ
JdbcInfo.java
 package com.deng.drp.util;
public class JdbcInfo {
private String driverName;

private String url;

private String usern


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