ibatis 分页 03_UserAction

UserAction.java

 

package com.iss.action.user;

import java.util.List;
import java.util.Map;

import com.iss.beans.UserBean;
import com.iss.common.core.BaseAction;
import com.iss.common.core.Pager;
import com.iss.common.core.pager.GetPage;
import com.iss.common.core.pager.Page;
import com.iss.common.core.pager.PageModel;
import com.iss.common.util.Constants;
import com.iss.common.util.Log4jLogger;
import com.iss.service.IUserService;
import com.opensymphony.xwork2.ActionContext;

public class UserAction extends BaseAction {
	
	private static Log4jLogger log = Log4jLogger.getLogger(UserAction.class);

	/**
	 * 
	 */
	private static final long serialVersionUID = 2913410716225305821L;

    private IUserService userService;
    
    private List<UserBean> users;
    private UserBean user;
    private Page page;
    
    /**
     * 分页查询
     * @return
     * @throws Exception
     */
    public String getUsersPage(){
    	
    	try {
    		String pre = this.getRequest().getParameter("pre"); // 当前页面
    		String rows = this.getRequest().getParameter("rows"); // 显示行数
    		
    		int pre1, row;
    		
    		if (pre == null || pre.length() == 0) { //如果当前页面为空
    			pre1 = 1;
    		} else {//如果当前页面不为空
    			pre1 = Integer.valueOf(pre);
    		}
    		if (rows == null || rows.length() == 0) { //如果每页显示行数为空
    			row = 1;
    		} else {//如果每页显示行数不为空
    			row = Integer.valueOf(rows);
    		}
    		
    		//获取记录数
			int count = userService.getCount(null);
			
			//分页查询
			users = userService.findPage(null, (pre1 - 1)*row, row); // 
			
			page = GetPage.getPage(count, users, row, pre1);
			
			List list = page.getList();
			
			this.getRequest().setAttribute("page", page);
			this.getRequest().setAttribute("list", list);
			
			return SUCCESS;
			
		} catch (Exception e) {
			log.error("UserAction: getUsersPage() excepton: ", e);
			return ERROR;
		}
    	
    }
	
	public void setUserService(IUserService userService) {
		this.userService = userService;
	}

	public UserBean getUser() {
		return user;
	}

	public void setUser(UserBean user) {
		this.user = user;
	}

	public List<UserBean> getUsers() {
		return users;
	}

	public void setUsers(List<UserBean> users) {
		this.users = users;
	}

	public Page getPage() {
		return page;
	}

	public void setPage(Page page) {
		this.page = page;
	}
}