useraction.java

采用目前流行的springstrutshibernate框架实现的增加、删除、查询、修改等操作的好例子

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.wlpava.struts.action;

import java.util.ArrayList;
import java.util.Collection;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.wlpava.business.IUser;
import com.wlpava.business.IUserService;
import com.wlpava.struts.form.UserForm;
import com.wlpava.utils.CommUtil;
import com.wlpava.utils.IPageList;
import com.wlpava.utils.ListQuery;
import com.wlpava.utils.PageList;

/** 
 * MyEclipse Struts
 * Creation date: 11-22-2006
 * 
 * XDoclet definition:
 * @struts.action path="/user" name="userForm" input="/form/userEdit.jsp" scope="request" validate="true"
 * @struts.action-forward name="list" path="/form/userList.jsp"
 * @struts.action-forward name="edit" path="/form/userEdit.jsp"
 */
public class UserAction extends Action {
	/*
	 * Generated Methods
	 */
	private IUserService userService;
	
	public IUserService getUserService() {
		return userService;
	}

	public void setUserService(IUserService userService) {
		this.userService = userService;
	}
	
	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		WebApplicationContext wac = WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServlet().getServletContext());
		//UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
		this.userService = (IUserService) wac.getBean("userService");
		String command = request.getParameter("easyJWebCommand");
		System.out.println("command="+command);
		if (command == null || "".equals(command) || "list".equals(command) || "query".equals(command)) {
			return doQuery(mapping, form, request, response);
		} else if ("new".equals(command)) {
			return mapping.findForward("edit");
		} else if ("add".equals(command)) {
			return doAdd(mapping, form, request, response);
		} else if ("edit".equals(command)) {
			return doEdit(mapping, form, request, response);
		} else if ("update".equals(command)) {
			return doUpdate(mapping, form, request, response);
		} else if ("del".equals(command)) {
			return doDel(mapping, form, request, response);
		}
		return super.execute(mapping, form, request, response);
	}

	public ActionForward doEdit(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
		UserForm vo = (UserForm) form;
		IUser user = null;
		if (vo.getCid() != 0)//vo.cid > 0
			user = userService.read(vo.getCid());
		if (user == null)
			user = userService.newUser();
		if (user != null) {
			vo.setCid(user.getCid());
			vo.setUserName(user.getUserName());
			vo.setPassword(user.getPassword());
			vo.setTel(user.getTel());
			vo.setEmail(user.getEmail());
			vo.setIntro(user.getIntro());
			vo.setBirthday(user.getBirthday());
			return mapping.findForward("edit");
		} else {
			request.setAttribute("msg", "找不到数据！");
			return doQuery(mapping, form, request, response);
		}
	}

	public ActionForward doUpdate(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
		IUser obj = (IUser) form2Po(form);
		if (userService.update(obj)) {
			request.setAttribute("msg", "数据修改成功！");
			return doQuery(mapping, form, request, response);
		} else {
			request.setAttribute("msg", "数据修改失败!");
			return mapping.getInputForward();
		}
	}

	public ActionForward doAdd(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
		IUser obj = form2Po(form);
		if (obj == null) {
			request.setAttribute("msg", "无法创建要保存的对象，添加失败！");
			return mapping.getInputForward();
		}
		if (userService.save(obj)) {
			request.setAttribute("msg", "数据添加成功！");
			return doQuery(mapping, form, request, response);
		} else {
			request.setAttribute("msg", "数据添加失败!可能原因:此用户名已存在.");
			return mapping.getInputForward();
		}
	}

	public ActionForward doQuery(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
		int currentPage = CommUtil.null2Int(request.getParameter("page"));
		int pageSize = CommUtil.null2Int(request.getParameter("pageSize"));
		if (currentPage < 1)
			currentPage = 1;
		if (pageSize < 1)
			pageSize = 10;
		String scope = "1=1";
		Collection<Object> paras = new ArrayList<Object>();
		String orderType = CommUtil.null2String(request.getParameter("orderType"));
		String orderField = CommUtil.null2String(request.getParameter("orderField"));
		String userName = CommUtil.null2String(request.getParameter("queryUserName"));
		String tel = CommUtil.null2String(request.getParameter("queryTel"));
		if (!userName.equals("")) {
			scope += " and userName like ?";
			paras.add("%" + userName + "%");
		}
		if (!tel.equals("")) {
			scope += " and tel like ?";
			paras.add("%" + tel + "%");
		}
		if (orderField.equals("")){// 默认按用户名排序
			orderField = "userName";
			orderType = "desc";
		}
		if (!orderField.equals("")) {
			scope += " order by " + orderField;
			if (!orderType.equals(""))
				scope += " " + orderType;
		}
		IPageList pList = new PageList(new ListQuery(userService.query(scope, paras)));
		pList.doList(pageSize, currentPage, "", "");
		if (pList != null) {
			request.setAttribute("list", pList.getResult());
			request.setAttribute("pages", new Integer(pList.getPages()));
			request.setAttribute("rows", new Integer(pList.getRowCount()));
			request.setAttribute("page", new Integer(pList.getCurrentPage()));
			request.setAttribute("gotoPageHTML", CommUtil.showPageHtml(pList.getCurrentPage(), pList.getPages()));
		}
		request.setAttribute("orderType", orderType);
		request.setAttribute("orderField", orderField);
		return mapping.findForward("list");
	}

	public ActionForward doDel(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
		String[] multi = (request.getParameter("mulitCid").substring(0,request.getParameter("mulitCid").length()-1)).split(",");
		System.out.println("mulitCid="+request.getParameter("mulitCid"));
		if(multi.length==1){
			UserForm vo = (UserForm) form;
			IUser user = null;
			if (vo.getCid() != 0)
				user = userService.read(vo.getCid());
			if (user != null && userService.del(user)) {
				request.setAttribute("msg", "数据删除成功！");
			} else {
				request.setAttribute("msg", "数据修改失败！");
			}
		}
		else{
			IUser[] users = new IUser[multi.length];
			for(int i=0;i<multi.length;i++){
				users[i] = userService.read(Integer.parseInt(multi[i]));
			}
			if (userService.del(users)) {
				request.setAttribute("msg", "批量数据删除成功！");
			} else {
				request.setAttribute("msg", "批量数据修改失败！");
			}
		}
		return doQuery(mapping, form, request, response);
	}

	public IUser form2Po(ActionForm form) {
		UserForm vo = (UserForm) form;
		IUser user = null;
		if (vo.getCid() != 0)
			user = userService.read(vo.getCid());
		if (user == null)
			user = userService.newUser();
		System.out.println("user="+vo.getUserName()+";"+vo.getIntro());
//		try {
//			user.setUserName(new String(vo.getUserName().getBytes("UTF-8"),"GB2312"));
//			user.setIntro(new String(vo.getIntro().getBytes("UTF-8"),"GB2312"));
//		} catch (UnsupportedEncodingException e) {
//			e.printStackTrace();
//		}
		user.setUserName(vo.getUserName());
		user.setBirthday(vo.getBirthday());
		user.setEmail(vo.getEmail());
		user.setTel(vo.getTel());
		user.setPassword(vo.getPassword());
		user.setIntro(vo.getIntro());
		System.out.println("user="+user.getCid()+";"+user.getUserName()+";"+user.getPassword()+";"+user.getBirthday()+";"+user.getEmail()+";"+user.getTel()+";"+user.getIntro());
		return user;
	}	
}