xml建模
1、对web.xml进行建模
编写一个config.xml文件
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编写一个config.xml里面的forward实体类
package com.likang;
import java.io.InputStream;
import java.util.List;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
public class ConfigModeFactory {
public static ConfigMode build() throws Exception {
return ConfigMode("config.xml");
}
/**
* 生产出有内容的实体类ConfigMode
* @param xmlPath
* @return
* @throws Exception
*/
private static ConfigMode ConfigMode(String xmlPath) throws Exception {
// TODO Auto-generated method stub
ConfigMode configmode=new ConfigMode();
ActionMode actionmode=null;
ForwardMode forwardMode=null;
InputStream ra = ConfigModeFactory.class.getResourceAsStream(xmlPath);
SAXReader saxReader=new SAXReader();
Document doc = saxReader.read(ra);
List list = doc.selectNodes("/config/action");
for (Element element : list) {
actionmode=new ActionMode();
actionmode.setType(element.attributeValue("type"));
actionmode.setPath(element.attributeValue("path"));
List list2 = element.selectNodes("forward");
for (Element element2 : list2) {
forwardMode=new ForwardMode();
forwardMode.setName(element2.attributeValue("name"));
forwardMode.setPath(element2.attributeValue("path"));
forwardMode.setRedirect(!"false".equals(element2.attribute("redirect")));//默认为true
actionmode.add(forwardMode);
}
configmode.add(actionmode);
}
return configmode;
}
public static void main(String[] args) throws Exception {
ConfigMode configMode=ConfigModeFactory.build();
ActionMode actionMode=configMode.getam("/loginAction");
System.out.println("config下的第二个action的type值："+actionMode.getType());
ForwardMode forwardMode=actionMode.getfm("success");
System.out.println("config下的第二个action下的第二个forward的path值:"+forwardMode.getPath());
}
}
结果如下
2、写一个servlet
3、通过url-pattern读取到servlet-class的值
web.xml文件
jrebelServlet
com.zking.xml.JrebelServlet
jrebelServlet
/jrebelServlet
jrebelServlet2
com.zking.xml.JrebelServlet2
jrebelServlet2
/jrebelServlet2
/jrebelServlet3
ServletClassModel类
package com.likang.xml;
public class ServletClassModel {
private String clas;
public String getClas() {
return clas;
}
public void setClas(String clas) {
this.clas = clas;
}
}
ServletMappingModel类
package com.likang.xml;
import java.util.ArrayList;
import java.util.List;
public class ServletMappingModel {
private ServletNameMode servletNameModel;
private List urlPatternModels = new ArrayList<>();
public ServletNameMode getServletNameModel() {
return servletNameModel;
}
public void setServletNameModel(ServletNameMode servletNameModel) {
this.servletNameModel = servletNameModel;
}
public void pushUrlPatternModel(UrlPatternModel urlPatternModel) {
urlPatternModels.add(urlPatternModel);
}
public List getUrlPatternModels() {
return urlPatternModels;
}
}
ServletModel类
package com.likang.xml;
public class ServletModel {
private ServletNameMode servletNameModel;
private ServletClassModel servletClassModel;
public ServletNameMode getServletNameModel() {
return servletNameModel;
}
public void setServletNameModel(ServletNameMode servletNameModel) {
this.servletNameModel = servletNameModel;
}
public ServletClassModel getServletClassModel() {
return servletClassModel;
}
public void setServletClassModel(ServletClassModel servletClassModel) {
this.servletClassModel = servletClassModel;
}
}
ServletNameMode类
package com.likang.xml;
public class ServletNameMode {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
UrlPatternModel类
package com.likang.xml;
public class UrlPatternModel {
private String url;
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
}
WebappMode类
package com.likang.xml;
import java.util.List;
import java.util.ArrayList;
public class WebappMode {
private List servletModels = new ArrayList<>();
private List servletMappingModels = new ArrayList<>();
public void pushServletModel(ServletModel servletModel) {
servletModels.add(servletModel);
}
public List getServletModels() {
return servletModels;
}
public void pushServletMappingModel(ServletMappingModel servletMappingModel) {
servletMappingModels.add(servletMappingModel);
}
public List getServletMappingModels() {
return servletMappingModels;
}
}
WebAppModelFactory工厂
package com.likang.xml;
import java.io.InputStream;
import java.util.List;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.io.SAXReader;
public class WebAppModelFactory {
public static WebappMode buildWebAppModel() {
String xmlPath = "web.xml";
return builc(xmlPath);
}
public static WebappMode builc(String xmlPath) {
InputStream in = WebAppModelFactory.class.getResourceAsStream(xmlPath);
SAXReader saxReader = new SAXReader();
WebappMode webAppModel = new WebappMode();
try {
Document doc = saxReader.read(in);
List servletEles = doc.selectNodes("/web-app/servlet");
for (Element servletEle : servletEles) {
ServletModel servletModel = new ServletModel();
Element servletNameEle = (Element) servletEle.selectSingleNode("servlet-name");
Element servletClassEle = (Element) servletEle.selectSingleNode("servlet-class");
ServletNameMode servletNameModel = new ServletNameMode();
ServletClassModel servletClassModel = new ServletClassModel();
servletNameModel.setName(servletNameEle.getText());
servletClassModel.setClas(servletClassEle.getText());
servletModel.setServletNameModel(servletNameModel);
servletModel.setServletClassModel(servletClassModel);
webAppModel.pushServletModel(servletModel);
}
List servletMappingEles = doc.selectNodes("/web-app/servlet-mapping");
for (Element servletMappingEle : servletMappingEles) {
ServletMappingModel servletMappingModel = new ServletMappingModel();
Element servletNameEle = (Element) servletMappingEle.selectSingleNode("servlet-name");
ServletNameMode servletNameModel = new ServletNameMode();
servletNameModel.setName(servletNameEle.getText());
servletMappingModel.setServletNameModel(servletNameModel);
List urlPatternEles = servletMappingEle.selectNodes("url-pattern");
for (Element urlPatternEle : urlPatternEles) {
UrlPatternModel urlPatternModel = new UrlPatternModel();
urlPatternModel.setUrl(urlPatternEle.getText());
servletMappingModel.pushUrlPatternModel(urlPatternModel);
}
webAppModel.pushServletMappingModel(servletMappingModel);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return webAppModel;
}
public static String getServletClassByUrl(WebappMode webAppModel, String url) {
String servletClass = "";
String servletName = "";
List servletMappingModels = webAppModel.getServletMappingModels();
for (ServletMappingModel servletMappingModel : servletMappingModels) {
List urlPatternModels = servletMappingModel.getUrlPatternModels();
for (UrlPatternModel urlPatternModel : urlPatternModels) {
if(url.equals(urlPatternModel.getUrl())) {
ServletNameMode servletNameModel = servletMappingModel.getServletNameModel();
servletName = servletNameModel.getName();
}
}
}
List servletModels = webAppModel.getServletModels();
for (ServletModel servletModel : servletModels) {
ServletNameMode servletNameModel = servletModel.getServletNameModel();
if(servletName.equals(servletNameModel.getName())){
ServletClassModel servletClassModel = servletModel.getServletClassModel();
servletClass = servletClassModel.getClas();
}
}
return servletClass;
}
public static void main(String[] args) {
WebappMode webAppModel = WebAppModelFactory.buildWebAppModel();
String res = getServletClassByUrl(webAppModel, "/jrebelServlet");
String res2 = getServletClassByUrl(webAppModel, "/jrebelServlet2");
String res3 = getServletClassByUrl(webAppModel, "/jrebelServlet3");
System.out.println(res);
System.out.println(res2);
System.out.println(res3);
}
}
结果如下
