import java.util.HashMap;
import java.util.Map;
/**
* 属性值类，描述页面动态表单域信息
*
*
*/
public class AttributeVO implements java.io.Serializable {
private static final long serialVersionUID = -8683922528577545017L;
public static enum Sort {
ASC, DESC
}
/**
* id
*/
private String id;
/**
* 字段名
*/
private String name;
/**
* 控件类型
*/
private String type;
/**
* 描述
*/
private String description;
/**
* 默认值
*/
private String value;
/**
* 码表Code
*/
private String codeId;
/**
* 正则
*/
private String regex;
/**
* 排序
*/
private String order;
/**
* Select下拉数据
*/
private Map<String, String> select = new HashMap<String, String>();
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public String getCodeId() {
return codeId;
}
public void setCodeId(String codeId) {
this.codeId = codeId;
}
public String getRegex() {
return regex;
}
public void setRegex(String regex) {
this.regex = regex;
}
public String getOrder() {
return order;
}
public void setOrder(String order) {
this.order = order;
}
public Map<String, String> getSelect() {
return select;
}
public void setSelect(Map<String, String> select) {
this.select = select;
}
}
import org.springframework.util.ResourceUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.io.*;
import java.util.*;
/**
* Date: 2010-4-4
* Time: 22:39:55
*/
public class AttributeVOXMLUtil {
public static Map<String, Map<String, AttributeVO>> attributeMap = new HashMap<String, Map<String, AttributeVO>>();
/**
* 解析XML
*
* @param xmlName
* @return
*
*/
private static Document getDocument(String xmlName) {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = null;
try {
db = dbf.newDocumentBuilder();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
Document document = null;
try {
document = db.parse(new FileInputStream(ResourceUtils.getFile(ResourceUtils.CLASSPATH_URL_PREFIX + xmlName)));
} catch (IOException e) {
throw new XMLParserException("XML文件没有找到", e);
} catch (SAXException e) {
throw new XMLParserException("XML解析错误");
}
return document;
}
/**
* 根据Path返回节点列表
*
* @param document
* @param xPath
* @return
*
*/
private static NodeList getNodeList(Document document, String xPath) {
XPathFactory xpathFactory = XPathFactory.newInstance();
XPath xpath = xpathFactory.newXPath();
NodeList nodeList = null;
try {
nodeList = (NodeList) xpath.evaluate(xPath, document, XPathConstants.NODESET);
} catch (XPathExpressionException e) {
throw new XMLParserException("XPath错误");
}
return nodeList;
}
/**
* 根据Path返回单个节点
*
* @param document
* @param xPath
* @return
*
*/
private static Node getNode(Document document, String xPath) {
XPathFactory xpathFactory = XPathFactory.newInstance();
XPath xpath = xpathFactory.newXPath();
Node node = null;
try {
node = (Node) xpath.evaluate(xPath, document, XPathConstants.NODE);
} catch (XPathExpressionException e) {
throw new XMLParserException("XPath错误");
}
return node;
}
/**
* 根据id删除节点
*
* @param xmlName
* @param itemId
*/
private static void removeNode(String xmlName, String itemId) {
Document document = getDocument(xmlName);
Element root, attributeItem;
root = document.getDocumentElement();
attributeItem = (Element) getNode(document, "//attributeItem[@id='" + itemId + "']");
if (attributeItem != null) {
//删除一个节点
root.removeChild(attributeItem);
//写入到xml
writeXml(document, xmlName);
//删除缓存中的Map
attributeMap.remove(itemId);
}
}
/**
* 写入XML
*
* @param doc
* @param xmlName
*/
private static void writeXml(Document doc, String xmlName) {
OutputStream fileoutputStream = null;
try {
fileoutputStream = new FileOutputStream(ResourceUtils.getFile(ResourceUtils.CLASSPATH_URL_PREFIX + xmlName));
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(fileoutputStream);
transformer.transform(source, result);
} catch (FileNotFoundException e) {
throw new XMLParserException("没有找到XML文件", e);
} catch (TransformerConfigurationException e) {
throw new XMLParserException("文件写入错误", e);
} catch (TransformerException e) {
throw new XMLParserException("文件写入错误", e);
} finally {
if (fileoutputStream != null)
try {
fileoutputStream.close();
} catch (IOException e) {
throw new XMLParserException("文件流错误");
}
}
}
/**
* 返回信息
*
* @param xmlName
* @return
*
*/
public static Map<String, Map<String, AttributeVO>> queryParserXml(String xmlName) {
Document document = getDocument(xmlName);
document.normalize();
NodeList attributeItemList = getNodeList(document, "//attributeItem");
int itemLen = attributeItemList.getLength();
for (int i = 0; i < itemLen; i++) {
Element element = (Element) attributeItemList.item(i);
attributeMap.put(element.getAttribute("id"), getAttributeVOMap(document, "//attributeItem[@id='" + element.getAttribute("id") + "']/attribute"));
}
return attributeMap;
}
/**
* 封装AttributeItem信息
*
* @param document
* @param xPath
* @return
*
*/
private static Map<String, AttributeVO> getAttributeVOMap(Document document, String xPath) {
Map<String, AttributeVO> attributeVOMap = new HashMap<String, AttributeVO>();
NodeList attributeItemList = getNodeList(document, xPath);
int itemLen = attributeItemList.getLength();
for (int i = 0; i < itemLen; i++) {
Element element = (Element) attributeItemList.item(i);
attributeVOMap.put(element.getAttribute("name"), getAttributeVO(element, document, xPath + "[@id='" + element.getAttribute("id") + "']/select"));
}
return attributeVOMap;
}
/**
* 返回AttributeVO信息
*
* @param element
* @param document
* @param xPath
* @return
*
*/
private static AttributeVO getAttributeVO(Element element, Document document, String xPath) {
Map<String, String> selectMap = new HashMap<String, String>();
AttributeVO attributeVO = new AttributeVO();
NodeList attributeItemList = getNodeList(document, xPath);
int itemLen = attributeItemList.getLength();
for (int i = 0; i < itemLen; i++) {
Element selectElement = (Element) attributeItemList.item(i);
selectMap.put(selectElement.getAttribute("id"), selectElement.getAttribute("value"));
}
attributeVO.setId(element.getAttribute("id"));
attributeVO.setName(element.getAttribute("name"));
attributeVO.setType(element.getAttribute("type"));
attributeVO.setDescription(element.getAttribute("description"));
attributeVO.setValue(element.getAttribute("value"));
attributeVO.setCodeId(element.getAttribute("codeId"));
attributeVO.setRegex(element.getAttribute("regex"));
attributeVO.setOrder(element.getAttribute("order"));
attributeVO.setSelect(selectMap);
return attributeVO;
}
/**
* 返回AttributeVO列表
*
* @param itemId
* @return
*
* @see
*/
public static List<AttributeVO> queryAttribute(final String itemId) {
return queryAttribute(itemId, AttributeVO.Sort.ASC);
}
/**
* 返回AttributeVO列表
*
* @param itemId
* @param sort
* @return
*
* @see
*/
public static List<AttributeVO> queryAttribute(final String itemId, final AttributeVO.Sort sort) {
final List<AttributeVO> attributeVOList = new LinkedList<AttributeVO>();
final Map<String, AttributeVO> attributeVOMap = attributeMap.get(itemId);
if (attributeVOMap != null) {
final Iterator<String> iterName = attributeVOMap.keySet().iterator();
while (iterName.hasNext()) {
attributeVOList.add(attributeVOMap.get(iterName.next()));
}
//排序
Collections.sort(attributeVOList, new Comparator<AttributeVO>() {
@Override
public int compare(AttributeVO o1, AttributeVO o2) {
final AttributeVO AttributeVO1 = o1;
final AttributeVO AttributeVO2 = o2;
final Integer order1 = Integer.valueOf(AttributeVO1.getOrder());
final Integer order2 = Integer.valueOf(AttributeVO2.getOrder());
if (sort.equals(AttributeVO.Sort.ASC))
return order1 < order2 ? 0 : 1;
else
return order1 < order2 ? 1 : 0;
}
});
}
return attributeVOList;
}
/**
* 根据itemId删除元素
*
* @param itemId
*/
public static void removeItem(String itemId) {
removeNode("attribute.xml", itemId);
}
}
