import java.io.File;
import java.util.concurrent.CountDownLatch;
import com.sleepycat.db.Environment;
import com.sleepycat.db.EnvironmentConfig;
import com.sleepycat.db.LockDetectMode;
import com.sleepycat.dbxml.XmlContainer;
import com.sleepycat.dbxml.XmlContainerConfig;
import com.sleepycat.dbxml.XmlDocument;
import com.sleepycat.dbxml.XmlDocumentConfig;
import com.sleepycat.dbxml.XmlException;
import com.sleepycat.dbxml.XmlManager;
import com.sleepycat.dbxml.XmlManagerConfig;
import com.sleepycat.dbxml.XmlQueryContext;
import com.sleepycat.dbxml.XmlResults;
import com.sleepycat.dbxml.XmlTransaction;
import com.sleepycat.dbxml.XmlUpdateContext;
public class DbxmlThreads extends Thread {
public static XmlManager mgr = null;
public static String containerName = "test.dbxml";
public static Environment dbEnv = null;
private static XmlContainer cont = null;
static {
EnvironmentConfig envConf = new EnvironmentConfig();
envConf.setThreaded(true);
envConf.setAllowCreate(true);
envConf.setTransactional(true);
envConf.setInitializeCache(true);
envConf.setInitializeLocking(true);
envConf.setInitializeLogging(true);
envConf.setCacheSize(64 * 1024 * 1024);
envConf.setLockDetectMode(LockDetectMode.DEFAULT);
XmlManagerConfig xmlMgrConfig = new XmlManagerConfig();
xmlMgrConfig.setAdoptEnvironment(true);
File dbHome = new File(".");
try {
dbEnv = new Environment(dbHome, envConf);
mgr = new XmlManager(dbEnv, xmlMgrConfig);
// 创建XmlContainer
if(mgr.existsContainer(containerName)!=0)
已知有一个XML文件（bookstore.xml）如下：
<?xml version="1.0" encoding="gb2312"?>
<bookstore>
<book genre="fantasy" ISBN="2-3631-4">
<title>Oberon's Legacy</title>
<author>Corets, Eva</author>
<price>5.95</price& ......
PHP从PHP5开始，彻底重新编写的和新增了对XML的扩展，如 SAX 解析器、DOM、SimpleXML、XMLReader、XMLWriter 和 XSLT 处理程序。所有这些扩展都以 libxml2 为基础。
=============================
1、DOMDocument对象常用方法：
=============================
a）createElement(elementName)
该� ......
