musicareaaction.java

本程序是作者开发的一个宽带娱乐系统的一个模块.

package com.singnet.music.struts.action;

import java.rmi.RemoteException;
import java.util.ArrayList;

import javax.ejb.CreateException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import com.singnet.music.MusicAreaInfo;
import com.singnet.music.client.MusicAreaClient;
import com.singnet.music.struts.form.MusicAreaActionForm;
import com.singnet.util.Pager;
import com.singnet.util.UserCheck;

public class MusicAreaAction extends DispatchAction {
	private MusicAreaClient client = new MusicAreaClient();

	public ActionForward add(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws CreateException, RemoteException, Exception {
		MusicAreaInfo musicAreainfo = new MusicAreaInfo();
		MusicAreaActionForm musicAreaActionForm = (MusicAreaActionForm) form;
		if (musicAreaActionForm.getAreaname() == null) {
			return mapping.findForward("add");
		}
		if (musicAreaActionForm.getAreaname().equals("")) {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_ADD_NONAME);
			return mapping.findForward("add");
		}
		if (client
				.queryMusicAreaInfoByAreaname(musicAreaActionForm.getAreaname()) != null) {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_ADD_EXSIT);
			return mapping.findForward("add");
		}
		musicAreainfo.setAreaname(musicAreaActionForm.getAreaname());
		
		if (client.addMusicAreaInfo(musicAreainfo)) {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_ADD_SUCCESS);
		} else {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_ADD_FAILURE);
		}
		return mapping.findForward("add");
	}

	public ActionForward edit(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws CreateException, RemoteException, Exception {
		MusicAreaInfo musicAreainfo = new MusicAreaInfo();
		MusicAreaActionForm musicAreaActionForm = (MusicAreaActionForm) form;
		String id = request.getParameter("id");

		// 判断ID是否合法
		if (id == null || id.equals("") || id.length() < 1
				|| !com.singnet.util.Format.isNumber(id)) {
			request.setAttribute("message",
					JspMessageConst.SYSTEM_ERROR_WrongVars);
			return mapping.findForward("error");
		}
		musicAreainfo = client.queryMusicAreaInfoById(id);
		// get进入的情况
		if (musicAreaActionForm.getAreaname() == null) {
			request.setAttribute("musicareainfo", musicAreainfo);

			return mapping.findForward("edit");
		}
		// post进入，判断是否有输入类型名称
		if (musicAreaActionForm.getAreaname().equals("")) {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_ADD_NONAME);
			request.setAttribute("musicareainfo", musicAreainfo);
			return mapping.findForward("edit");
		}

		musicAreainfo.setAreaname(musicAreaActionForm.getAreaname());
		 

		if (client.editMusicAreaInfo(musicAreainfo)) {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_EDIT_SUCCESS);
		} else {
			request.setAttribute("message",
					JspMessageConst.MODULE_VIDEOAREA_EDIT_FAILURE);
		}
		request.setAttribute("musicareainfo", musicAreainfo);
		return mapping.findForward("edit");
	}

	public ActionForward list(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws CreateException, RemoteException, Exception {
		MusicAreaInfo musicAreainfo = new MusicAreaInfo();
		MusicAreaActionForm musicAreaActionForm = (MusicAreaActionForm) form;
		UserCheck uc = new UserCheck(request);
		/**
		 * 删除操作开始
		 */
		String action = request.getParameter("action");
		if (action != null && action.equals("delete")) {
			String[] id = request.getParameterValues("sel_id");
			for (int i = 0; i < id.length; i++) {
				// 删除开始
				if (client.deleteMusicAreaInfo(id[i])) {
					request.setAttribute("message",
							JspMessageConst.MODULE_VIDEOAREA_DELETE_SUCCESS);
				} else {
					request.setAttribute("message",
							JspMessageConst.MODULE_VIDEOAREA_DELETE_SUCCESS);
				}
			}
		}
		 ArrayList list = new ArrayList();
		 
		list = client.queryMusicAreaInfo();
		request.setAttribute("list", list);
		return mapping.findForward("list");
	}
}