最近做项目时，遇到了多配置文件读取的问题。最后，还是采用了递归读取配置文件的方法去实现，感觉挺实用的。
package com.lxit.web.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
import com.lxit.web.util.bean.ActionFormTemplate;
import com.lxit.web.util.bean.ActionTemplate;
import com.lxit.web.util.bean.DispatchTemplate;
import com.lxit.web.util.bean.ServletHelper;
public class LoadConfigServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private final static String CONFIG_PATH="\\WEB-INF\\config";
private List<String> fileList= new ArrayList<String>();
private List<ServletHelper> ServletHelperList= new ArrayList<ServletHelper>();
private Document document;
@Override
public void init(ServletConfig config) throws ServletException {
getConfigFiles(config.getServletContext(),CONFIG_PATH);
for(String file:fileList){
System.out.println("读取配置文件:"+file);
ServletHelperList.add(parseConfigFile(file));
}
System.out.println("ServletHelperList的值如下:");
for(ServletHelper i: ServletHelperList){
System.out.println("i: "+i);
}
}
public void getConfigFiles(ServletContext context,String path){
String filePath=context.getRealPath("")+path;
File file=new File(filePath);
File[] files=file.listFiles();
for(File i:files){
if(i.isDirectory()){
getConfigFiles(context,CONFIG_PATH+"\\"+i.getName());
}else if(i.isFile()){
fileList.add(filePath+"\\"+i.getName());
}
}
}
private ServletHelper parseConfigFile(String path){
ServletHelper servletHelper=new ServletHelper();
SAXBuilder saxBuilder = new SAXBuilder();
FileInputStream fileInputStream = null;
try {
fileInputStream = new FileInputStream(path);
document=saxBuilder.build(fileInputStream);
} catch (Exception e) {
System.out.println("配置文件加载失败 路径： "+path);
e.printStackTrace();
}
Element rootElement = document.getRootElement();
List<Element> childlist = rootElement.getChildren();
for (Element tempElement : childlist) {
if(tempElement.getName().equals("actionForm")){
ActionFormTemplate actionFormTemplate=new ActionFormTemplate(tempElement.getAttributeValue("name"),tempElement.getAttributeValue("class"));
servletHelper.setActionFormTemplate(actionFormTemplate);
}else if(tempElement.getName().equals("action")){
ActionTemplate actionTemplate=new ActionTemplate(tempElement.getAttributeValue("name"),tempElement.getAttributeValue("class"));
List<Element> actionChildElement=tempElement.getChildren();
for(Element actionElement:actionChildElement){
DispatchTemplate dispatchTemplate=new DispatchTemplate(actionElement.getAttributeValue("name"),actionElement.getText());
actionTemplate.setDispatchTemplate(dispatchTemplate);
}
servletHelper.setActionTemplate(actionTemplate);
}
}
return servletHelper;
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
package com.lxit.web.util.bean;
public class ActionFormTemplate {
private String name;
private String Class;
public ActionFormTemplate(String name,String Class){
this.name=name;
this.Class=Class;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getActionFormClass() {
return Class;
}
public void setActionFormClass(String Class) {
this.Class = Class;
}
@Override
public String toString() {
return "ActionFormTemplate [name=" + name + ", Class=" + Class + "]";
}
}
package com.lxit.web.util.bean;
import java.util.HashMap;
import java.util.Map;
public class ActionTemplate {
private String name;
private String Class;
private Map<String,DispatchTemplate> dispatchTemplate=new HashMap<String,DispatchTemplate>();
public ActionTemplate(String name,String Class){
this.name=name;
this.Class=Class;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getActionClass() {
return Class;
}
public void setActionClass(String Class) {
this.Class = Class;
}
public Map<String, DispatchTemplate> getDispatchTemplate() {
return dispatchTemplate;
}
public void setDispatchTemplate(DispatchTemplate tempDispatchTemplate) {
dispatchTemplate.put(tempDispatchTemplate.getName(),tempDispatchTemplate);
}
@Override
public String toString() {
return "ActionTemplate [name=" + name + ", Class=" + Class + ", dispatchTemplate=" + dispatchTemplate + "]";
}
}
package com.lxit.web.util.bean;
public class DispatchTemplate {
private String name;
private String text;
public DispatchTemplate(String name,String Text){
this.name=name;
this.text=Text;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
@Override
public String toString() {
return "DispatchTemplate [name=" + name + ", text=" + text + "]";
}
}
package com.lxit.web.util.bean;
import java.util.HashMap;
import java.util.Map;
public class ServletHelper {
private Map<String,ActionFormTemplate> actionFormTemplate=new HashMap<String,ActionFormTemplate>();
private Map<String,ActionTemplate> actionTemplate=new HashMap<String,ActionTemplate>();
public Map<String, ActionFormTemplate> getActionFormTemplate() {
return actionFormTemplate;
}
public void setActionFormTemplate(ActionFormTemplate tempActionFormTemplate) {
actionFormTemplate.put(tempActionFormTemplate.getName(),tempActionFormTemplate);
}
public Map<String, ActionTemplate> getActionTemplate() {
return actionTemplate;
}
public void setActionTemplate(ActionTemplate tempActionTemplate) {
actionTemplate.put(tempActionTemplate.getName(),tempActionTemplate);
}
@Override
public String toString() {
return "ServletHelper [actionFormTemplate=" + actionFormTemplate + ", actionTemplate=" + actionTemplate + "]";
}
}
user.xml:
<?xml version="1.0" encoding="UTF-8"?>
<config>
<!-- actionForm反射地址 -->
<actionForm name="AccountForm" class="com.lxit.book.bean.Account"></actionForm>
<actionForm name="BookForm" class="com.lxit.book.bean.Book"></actionForm>
<actionForm name="BorrowBookForm" class="com.lxit.book.bean.BorrowBook"></actionForm>
<actionForm name="StudentForm" class="com.lxit.book.bean.Student"></actionForm>
<actionForm name="UserForm" class="com.lxit.book.bean.User"></actionForm>
<actionForm name="DictionaryForm" class="com.lxit.book.bean.DictionaryValue"></actionForm>
<actionForm name="RoleForm" class="com.lxit.book.bean.Role"></actionForm>
<actionForm name="PurviewForm" class="com.lxit.book.bean.Purview"></actionForm>
<!-- method 反射地址 -->
<action name="book" class="com.lxit.book.action.BookAction"></action>
<action name="student" class="com.lxit.book.action.StudentAction"></action>
<action name="user" class="com.lxit.book.action.UserAction">
<forward name="query" >/WEB-INF/jsp/user/user.jsp</forward>
</action>
<action name="dictionary" class="com.lxit.book.action.DictionaryAction"></action>
<action name="borrowBook" class="com.lxit.book.action.BorrowBookAction"></action>
<action name="role" class="com.lxit.book.action.RoleAction">
<forward name="query" >/WEB-INF/jsp/role/role.jsp</forward>
</action>
<action name="purview" class="com.lxit.book.action.PurviewAction">
<forward name="query" >/WEB-INF/jsp/purview/purview.jsp</forward>
</action>
</config>
config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<config>
<action name="purview" class="com.lxit.book.action.PurviewAction">
<forward name="query" >/WEB-INF/jsp/purview/purview.jsp</forward>
</action>
</config>
