XML modeling

Catalog

One 、XML modeling

The core idea ： Operate in an object-oriented way xml file

Two 、 expand

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One 、XML modeling

The core idea ： Operate in an object-oriented way xml file

First we get one config.xml file As shown in the figure

Realize the idea ： From inside to outside , first forwardModel, The second is actionModel, Last but not least ConfigModel, And a factory class ConfigModelFactory

1.forwardmodel

package com.zjy.Model;

/**
 *  Corresponding forward label 
 * @author Administrator
 *
 */
public class ForwardModel {

	//<forward name="failed" path="/reg.jsp" redirect="false" />
	private String name;
	private String path;
	private boolean redirect;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPath() {
		return path;
	}
	public void setPath(String path) {
		this.path = path;
	}
	public boolean isRedirect() {
		return redirect;
	}
	public void setRedirect(boolean redirect) {
		this.redirect = redirect;
	}
	
}

2.actionModel

package com.zjy.Model;

import java.util.HashMap;
import java.util.Map;

/**
 *  Corresponding action label 
 * @author Administrator
 *
 */
public class ActionModel {

	//<action path="/registerAction" type="test.action.RegisterAction">
	private String path;
	private String type;
	private Map<String , ForwardModel> fmap = new HashMap<>();
	public String getPath() {
		return path;
	}
	public void setPath(String path) {
		this.path = path;
	}
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	// Two behaviors   increase forwardModel object , lookup forwardModel object 
	// Will a new forward Label objects are added to the container 
	public void push(ForwardModel forwardModel) {
		fmap.put(forwardModel.getName(), forwardModel);
	}
	public ForwardModel pop(String name) {
		return fmap.get(name);
	}
}

3.configModel

package com.zjy.Model;

import java.util.HashMap;
import java.util.Map;

/**
 *  The object corresponding to the tag 
 * @author Administrator
 *
 */
public class ConfigModel {

	private Map<String, ActionModel> amap = new HashMap<String, ActionModel>();
	public void push(ActionModel actionModel) {
		amap.put(actionModel.getPath(), actionModel);
		
	}
	public ActionModel pop(String path) {
		return amap.get(path);
	}
}

4.configModelFactoryer

package com.zjy.Model;

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;

/**
 * 23 Factory mode of design mode 
 * @author Administrator
 *ConfigMOdelFactory It's for production configModel Object's 
 * manufactured ConfigModel Object contains config.xml Configuration information 
 *
 * Produced here configModel There is configuration information 
 *1. analysis config.xml Configuration information 
 *2. Load the corresponding configuration information into different model objects 
 * 
 * 
 */
public class ConfigModelFactory {

	public static ConfigModel bulid() throws Exception {
		String defaultPath = "/config.xml";
		InputStream in = ConfigModelFactory.class.getResourceAsStream(defaultPath);
		SAXReader sr = new SAXReader();
		Document doc = sr.read(in);
		List<Element> actionEles = doc.selectNodes("/config/action");
		ConfigModel configModel = new ConfigModel();
		for (Element element : actionEles) {
			ActionModel actionModel = new ActionModel();
			actionModel.setPath(element.attributeValue("path"));
			actionModel.setType(element.attributeValue("type"));
			// take forwardmodel Assign and add to actionmodel in 
			List<Element> forwardEles = element.selectNodes("forward");
			for (Element element2 : forwardEles) {
				ForwardModel forwardModel = new ForwardModel();
				forwardModel.setName(element2.attributeValue("name"));
				forwardModel.setPath(element2.attributeValue("path"));
				//redirect： Can only be false|true, Allow space , The default value is false
				forwardModel.setRedirect("true".equals(element2.attributeValue("redirect")));
				actionModel.push(forwardModel);
			}
			configModel.push(actionModel);
		}
		return configModel;
		
	
	}	
}

Two 、 expand

This time we got a web.xml file , It can be seen from the previous xml The difference between documents is web.xml Only labels , The label is embedded with a label , And only the text content , There is no attribute

  Realize the idea ： First, build the innermost url-patternmodel and servlet-namemodel as well as servlet-classmodel

Next is servletmodel and servlet-mappingmodel, Finally, the root tag Web-appmodel And the factory class Web-appmodelFactory

1、servlet-nameModel

package com.zjy.model;

/**
 * Servletname The object corresponding to the label 
 * @author Administrator
 *
 */
public class ServletNameModel {

	private String context;

	public String getContext() {
		return context;
	}

	public void setContext(String context) {
		this.context = context;
	}
	
}

2、servlet-classModel

package com.zjy.model;
/**
 * Servletclass The object corresponding to the label 
 * @author Administrator
 *
 */
public class ServletClassModel {

	private String context;

	public String getContext() {
		return context;
	}

	public void setContext(String context) {
		this.context = context;
	}
	
}

3、url-patternModel

package com.zjy.model;
/**
 * urlpattern The object corresponding to the label 
 * @author Administrator
 *
 */
public class UrlpatternModel {

	private String context;

	public String getContext() {
		return context;
	}

	public void setContext(String context) {
		this.context = context;
	}
	
}

4、servletModel

package com.zjy.model;

/**
 * Servlet The object corresponding to the label 
 * @author Administrator
 *
 */
public class ServletModel {

	private ServletNameModel servletNameModel;
	private ServletClassModel servletClassModel;
	public ServletNameModel getServletNameModel() {
		return servletNameModel;
	}
	public void setServletNameModel(ServletNameModel servletNameModel) {
		this.servletNameModel = servletNameModel;
	}
	public ServletClassModel getServletClassModel() {
		return servletClassModel;
	}
	public void setServletClassModel(ServletClassModel servletClassModel) {
		this.servletClassModel = servletClassModel;
	}
	
	
}
 

5、servlet-mappingModel

package com.zjy.model;

import java.util.ArrayList;
import java.util.List;

public class ServletMappingModel {

	private ServletNameModel servletNameModel;
	private List<UrlpatternModel> urlPatternModels = new ArrayList<>();
	public ServletNameModel getServletNameModel() {
		return servletNameModel;
	}
	public void setServletNameModel(ServletNameModel servletNameModel) {
		this.servletNameModel = servletNameModel;
	}
	public List<UrlpatternModel> getUrlPatternModels() {
		return urlPatternModels;
	}
	public void pushUrlpatternModel(UrlpatternModel urlpatternModel) {
		urlPatternModels.add(urlpatternModel);
	}
	
	
}

6、web-appModel

package com.zjy.model;

import java.util.ArrayList;
import java.util.List;

public class WebAppModel {

	private List<ServletModel> servletModels = new ArrayList<ServletModel>();
	private List<ServletMappingModel> servletMappingModels = new ArrayList<>();
	public List<ServletModel> getServletModels() {
		return servletModels;
	}
	public void pushServletModels(ServletModel servletModel) {
		servletModels.add(servletModel);
	}
	public List<ServletMappingModel> getServletMappingModels() {
		return servletMappingModels;
	}
	public void pushServletMappingModels(ServletMappingModel servletMappingModel) {
		servletMappingModels.add(servletMappingModel);
	}
	
	
}

7、web-appmodelFactory  Be careful ： If you don't understand, you can look at the notes ,

package com.zjy.model;

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 WebAppModel bulid() throws Exception {
		String path = "web.xml";
		InputStream in = WebAppModelFactory.class.getResourceAsStream(path);
		SAXReader sr = new SAXReader();
		WebAppModel webAppModel = new WebAppModel();
		try {
			// take servlet The contents of the label are filled into webappmodel in 
			Document doc = sr.read(in);
			// obtain servlet The node of 
			List<Element> servletEles = doc.selectNodes("/web-app/servlet");
			for (Element element : servletEles) {
				ServletModel servletModel = new ServletModel();
				// to servletmodel Fill in the content 
				Element servletNameEles  = (Element)element.selectSingleNode("servlet-name");
				Element servletClassEles  = (Element)element.selectSingleNode("servlet-class");
				ServletNameModel servletNameModel = new ServletNameModel();
				ServletClassModel servletClassModel = new ServletClassModel();
				// to class and name Label assignment 
				servletClassModel.setContext(servletClassEles.getText());
				servletNameModel.setContext(servletNameEles.getText());
				// take class and name Label in servlet in 
				servletModel.setServletClassModel(servletClassModel);
				servletModel.setServletNameModel(servletNameModel);
				// take servlet In the webapp In the root label 
				webAppModel.pushServletModels(servletModel);
			}
			// to servletmapping Label filling 
			List<Element> serveltmappEles = doc.selectNodes("/web-app/servlet-mapping");
			for (Element element : serveltmappEles) {
				ServletMappingModel servletMappingModel = new ServletMappingModel();
				// to ServletMappingModel Fill in the content 
				Element servletnameEle = (Element)element.selectSingleNode("servlet-name");
				// Because a servletmapping There can be multiple labels url-pattern label , So here we use set to receive 
				List<Element> urlpatternEles = element.selectNodes("url-pattern");
				ServletNameModel servletNameModel = new ServletNameModel();
				
				// to name assignment 
				servletNameModel.setContext(servletnameEle.getText());
				// take name Add to servletMapping in 
				servletMappingModel.setServletNameModel(servletNameModel);
				// Traverse urlpatternModel aggregate 
				for (Element element2 : urlpatternEles) {
					UrlpatternModel urlpatternModel = new UrlpatternModel();
					// to Url assignment 
					urlpatternModel.setContext(element2.getText());
					// take url Add to servletMapping in 
					servletMappingModel.pushUrlpatternModel(urlpatternModel);
				}
				
				// take servletMapping Add to webapp in 
				webAppModel.pushServletMappingModels(servletMappingModel);
			}
			
			
		} catch (Exception e) {
		e.printStackTrace();
		}
		
		
		
		return webAppModel;
		
	}
	
	/**
	 * 
	 * @param webAppModel webapp Modeling entity classes 
	 * @param url  website 
	 * @return servletClass
	 */
	public static String getClassByUrl(WebAppModel webAppModel,String url) {
		String servletClass = "";
		String servletName = "";
		List<ServletMappingModel> servletMappingModels = webAppModel.getServletMappingModels();
		for (ServletMappingModel servletMappingModel : servletMappingModels) {
			// find servletname The corresponding class 
			List<UrlpatternModel> urlPatternModels = servletMappingModel.getUrlPatternModels();
			for (UrlpatternModel urlpatternModel : urlPatternModels) {
				if(url.equals(urlpatternModel.getContext())) {
					ServletNameModel servletNameModel = servletMappingModel.getServletNameModel();
					servletName = servletNameModel.getContext();
				}
			}
		}
		
		// find servlet-name The corresponding class 
		List<ServletModel> servletModels = webAppModel.getServletModels();
		for (ServletModel servletModel : servletModels) {
			ServletNameModel servletNameModel = servletModel.getServletNameModel();
			if(servletName.equals(servletNameModel.getContext())) {
				ServletClassModel servletClassModel = servletModel.getServletClassModel();
				servletClass = servletClassModel.getContext();
			}
		}
		return servletClass;
		
	} 
	
	// test 
	public static void main(String[] args) throws Exception {
		WebAppModel webAppModel = WebAppModelFactory.bulid();
		String aa = getClassByUrl(webAppModel, "/jrebelServlet");

		String bb = getClassByUrl(webAppModel, "/jrebelServlet2");
		String cc = getClassByUrl(webAppModel, "/jrebelServlet3");
		System.out.println(aa);
		System.out.println(bb);
		System.out.println(cc);
	}
}