自己写的较为完整的JAVAEE框架

package com.easystruts.controller; import java.io.IOException; import java.util.Enumeration; import java.util.HashMap; import java.util.ResourceBundle; 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.apache.commons.beanutils.BeanUtils; import org.apache.commons.digester.Digester; import org.apache.commons.digester.xmlrules.DigesterLoader; import com.easystruts.config.ActionBean; import com.easystruts.config.ActionBeans; import com.easystruts.config.FormBean; import com.easystruts.config.FormBeans; import com.easystruts.config.ForwardBean; import com.easystruts.config.StrutsConfig; import com.easystruts.form.ActionForm; import com.easystruts.common.*; public class ActionServlet extends HttpServlet { StrutsConfig config=new StrutsConfig(); ActionBeans actionBeans=new ActionBeans(); FormBeans formBeans=new FormBeans(); public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setContentType("text/html"); response.setCharacterEncoding("utf-8"); try{ String path=this.getRequestPath(request); Action action=this.getAction(path, actionBeans); ActionForm actionForm=this.getActionForm(path, request); String forwardString=action.execute(actionForm, request, response); forward(path, forwardString, actionBeans,request,response); }catch(Exception e){ e.printStackTrace(); } } /** * 获取请求路径 * @param request * @return */ public String getRequestPath(HttpServletRequest request){ String uri=request.getRequestURI(); return uri.substring(uri.lastIndexOf("/"), uri.lastIndexOf(".")); } /** * 根据路径获取相应的Action对象 * @param path * @param actionBeans * @return */ public Action getAction(String path,ActionBeans actionBeans){ ActionBean actionBean=(ActionBean)actionBeans.getActionBean(path); String type=actionBean.getType(); Action action=null; try { action=(Action)Class.forName(type).newInstance(); } catch (Exception e) { e.printStackTrace(); } return action; } /** * 根据请求路径整合表单中的数据到ActionForm对象，并加入到缓存request/session中。 * @param path * @param config * @param request * @return */ public ActionForm getActionForm(String path,HttpServletRequest request)throws Exception{ String formName=null; formName=actionBeans.getActionBean(path).getName(); FormBean formBean=null; ActionForm actionForm=null; if(formName==null){ }else{ String attribute=actionBeans.getActionBean(path).getAttribute(); if(attribute==null){ attribute=formName; } String scope=actionBeans.getActionBean(path).getScope(); if(scope==null){ scope="request"; } if(scope.equals("request")){ formBean=(FormBean)request.getAttribute(attribute); }else{ formBean=(FormBean)request.getSession().getAttribute(attribute); } if(formBean==null){ formBean=formBeans.getFormBean(formName); actionForm=(ActionForm)Class.forName(formBean.getType()).newInstance(); BeanUtils.populate(actionForm, request.getParameterMap()); if(scope.equals("request")){ request.setAttribute(attribute,actionForm); }else{ request.getSession().setAttribute(attribute,actionForm); } } } return actionForm; } /** * 根据执行的结果以及配置文件的参数选择跳转方式和路径。 * @param path * @param forwardString * @param actionBeans */ public void forward(String path,String forwardString,ActionBeans actionBeans,HttpServletRequest request, HttpServletResponse response)throws Exception{ ForwardBean forwardBean=actionBeans.getActionBean(path).getForwardBean(forwardString); String redirect=forwardBean.getRedirect(); String forwardPath=forwardBean.getPath(); if(redirect.equals("true")){ response.sendRedirect(request.getContextPath()+forwardPath); }else{ request.getRequestDispatcher(forwardPath).forward(request, response); } } @Override public void init() throws ServletException { init_config(); init_language(); } /** * 解析配置文件easystruts-config.xml */ public void init_config(){ Digester digester=DigesterLoader.createDigester(ActionServlet.class.getClassLoader().getResource("com/easystruts/config/rule.xml")); digester.push(config); try { digester.parse(ActionServlet.class.getClassLoader().getResource("easystruts-config.xml")); } catch (Exception e) { e.printStackTrace(); } actionBeans=config.getActionBeans(); formBeans=config.getFormBeans(); } /** * 加载语言文件 */ public void init_language(){ ResourceBundle rb=ResourceBundle.getBundle(config.getLanguage().getSrc()); HashMap<String,String> languages=new HashMap<String,String>(); Enumeration<String> e=rb.getKeys(); while(e.hasMoreElements()){ String key=e.nextElement(); languages.put(key, rb.getString(key)); } ServletContext sc=this.getServletContext(); sc.setAttribute(Global.LANGUAGEKEY, languages); } }