通过表单提交实现调用不同的action方法

package com.y2118.theframework.servlet; import java.io.IOException; import java.lang.reflect.Method; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.y2118.theframework.action.IAction; import com.y2118.theframework.config.ActionManager; import com.y2118.theframework.config.ActionMapping; import com.y2118.theframework.config.ActionMappingManager; public class ActionServlet extends HttpServlet { /** * */ private static final long serialVersionUID = 1L; private ActionMappingManager mappingManager; private String method; /** * The doGet method of the servlet. <br> * * This method is called when a form has its tag value method equals to get. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ @SuppressWarnings("unchecked") public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { //根据Action的名称,获取一个actionMapping ActionMapping mapping = this.getActionMapping(request, response); //获取全类名 String Qclass = mapping.getClassNmae(); Class clazz = Class.forName(Qclass); //发射生成具体的IAction实现类 IAction action = (IAction) clazz.newInstance(); //循环遍历自定义集合 Method[] ms = clazz.getDeclaredMethods(); for (Method m :ms) { if(m.getName().equals(method)){ //提取该方法 @SuppressWarnings("unused") Method me = clazz.getMethod(m.getName()); //执行该方法，获取跳转页面的标记 String ret = (String)m.invoke(action); //获取resutl String result = mapping.getResult(ret); //跳转页面 response.sendRedirect(result); } } // // IAction action = ActionManager.createAction(mapping.getClassNmae()); // String resultName = action.execute(request, response); // String result = mapping.getResult(resultName); // if(result==null){ // response.sendError(404,"未配置Action的result元素"); // return ; // } //response.sendRedirect(result); } catch (Exception e) { // TODO: handle exception response.sendError(500,"请联系管理员"); System.out.println("错误"+e); } } /** * The doPost method of the servlet. <br> * * This method is called when a form has its tag value method equals to post. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); } public void init(ServletConfig config)throws ServletException{ //读取初始参数 String configStr = config.getInitParameter("config"); //可以配置多个配置文件 String [] fileNames = null; //如果为设置配置文件名称,则设置配置文件为默认名称 if(configStr==null || configStr.isEmpty()){ fileNames = new String[]{"struts.xml"}; } this.mappingManager = new ActionMappingManager(fileNames); } public ActionMapping getActionMapping(HttpServletRequest request,HttpServletResponse response)throws Exception{ //获取请求的uri String uri = request.getRequestURI(); //获取上下文路径 String contextPath = request.getContextPath(); //截取上下文路径以后的部分 String actionPath = uri.substring(contextPath.length()); //获取方法名称 String methodName = actionPath.substring(actionPath.lastIndexOf("!")+1,actionPath.lastIndexOf(".")); System.out.println("方法名称"+methodName); //获取action名称 String actionName = actionPath.substring(1,actionPath.lastIndexOf("!")).trim(); System.out.println("action名称:"+actionName); method = methodName; ActionMapping mapping = null; try { mapping = mappingManager.getActionMappingByName(actionName); } catch (Exception e) { // TODO: handle exception System.out.println("错误"+e); } return mapping; } }