781 lines
20 KiB
Java
781 lines
20 KiB
Java
/**
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* Copyright © 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
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*/
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package com.nis.domain;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.regex.Pattern;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.web.servlet.support.RequestContext;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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import com.nis.util.Configurations;
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import com.nis.util.Constants;
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import com.nis.util.CookieUtil;
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/**
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* 分页类
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* @author ThinkGem
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* @version 2013-7-2
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* @param <T>
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*/
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public class PageLog<T> {
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private int pageNo = 1; // 当前页码
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private int pageSize = Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)); // 页面大小，设置为“-1”表示不进行分页（分页无效）
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private long count;// 总记录数，设置为“-1”表示不查询总数
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private int first;// 首页索引
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private int last;// 尾页索引
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private int prev;// 上一页索引
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private int next;// 下一页索引
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private boolean firstPage;//是否是第一页
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private boolean lastPage;//是否是最后一页
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private int length = 8;// 显示页面长度
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private int slider = 1;// 前后显示页面长度
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private List<T> list = new ArrayList<T>();
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private String orderBy = ""; // 标准查询有效， 实例： updatedate desc, name asc
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private String fields;//制定资源的字段
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private String where;
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private String alias;
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private String funcName = "page"; // 设置点击页码调用的js函数名称，默认为page，在一页有多个分页对象时使用。
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private String funcParam = ""; // 函数的附加参数，第三个参数值。
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private String message = ""; // 设置提示消息，显示在“共n条”之后
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private RequestContext requestContext;
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private int maxExportSize=Constants.MAX_EXPORT_SIZE;
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public PageLog() {
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this.pageSize = -1;
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}
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/**
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* 构造方法
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* @param request 传递 repage 参数，来记住页码
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* @param response 用于设置 Cookie，记住页码
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*/
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public PageLog(HttpServletRequest request, HttpServletResponse response){
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this(request, response, Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
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}
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public PageLog(HttpServletRequest request, HttpServletResponse response,String alias){
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this(request, response, Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)),alias);
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}
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public PageLog(HttpServletRequest request, HttpServletResponse response, int defaultPageSize,String alias){
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this.setAlias(alias);
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this.initPage(request, response, defaultPageSize);
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}
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public PageLog(HttpServletRequest request, HttpServletResponse response, int defaultPageSize){
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this.initPage(request, response, defaultPageSize);
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}
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private void initPage(HttpServletRequest request, HttpServletResponse response, int defaultPageSize){
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try {
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this.requestContext = new RequestContext(request);
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// 设置页码参数（传递repage参数，来记住页码）
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String no = request.getParameter("pageNo");
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if (StringUtils.isNotBlank(no)) {
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if (StringUtils.isNumeric(no)){
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CookieUtil.addCookie(response, "pageNo", no);
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this.setPageNo(Integer.parseInt(no));
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}else if (request.getParameter("repage")!=null){
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no = CookieUtil.getValue(request, "pageNo");
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if (StringUtils.isNumeric(no)){
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this.setPageNo(Integer.parseInt(no));
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}
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}
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}
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// 设置页面大小参数（传递repage参数，来记住页码大小）
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String size = "";
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if(defaultPageSize==-1){
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size = "-1";
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}else{
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size = request.getParameter("pageSize");
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}
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if (StringUtils.isNotBlank(size)) {
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if (StringUtils.isNumeric(size) || size.equals("-1")){
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CookieUtil.addCookie(response, "pageSize", size);
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this.setPageSize(Integer.parseInt(size));
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} else if (request.getParameter("repage")!=null){
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size = CookieUtil.getValue(request, "pageSize");
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if (StringUtils.isNumeric(size)){
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this.setPageSize(Integer.parseInt(size));
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}
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}
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} else {
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this.pageSize = defaultPageSize;
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}
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String fields = request.getParameter("fields");
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if (StringUtils.isNotBlank(fields)){
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this.setFields(fields);
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}
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// 设置排序参数
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String orderBy = request.getParameter("orderBy");
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if (StringUtils.isNotBlank(orderBy)){
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this.setOrderBy(orderBy);
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}
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this.setWhere(getWhere(request));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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*
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* @Title: getWhere
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* @Description: TODO(抽取where查询条件)
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* @param @param request
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* @param @return 入参
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* @return String 返回类型
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* @author （darnell）
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* @throws
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* @date 2016年8月17日 上午9:28:21
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* @version V1.0
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* wx:日期格式的数据用日期格式化函数格式化，带空格的数据加上引号
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*/
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private String getWhere(HttpServletRequest request) {
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String format=Constants.SEARCH_DATEFORMAT;
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SimpleDateFormat sdf=new SimpleDateFormat(format);
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Map<String, String[]> requestMap = request.getParameterMap();
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StringBuilder whereBuilder = new StringBuilder(512);
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for(String paramName : request.getParameterMap().keySet()) {
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if (requestMap.get(paramName)!=null&¶mName.startsWith("search_")&&StringUtils.isNotBlank(requestMap.get(paramName)[0])) {
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String clomn=paramName.substring("search_".length());
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String value=requestMap.get(paramName)[0].trim();
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boolean isDate=false;
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try {
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sdf.parse(value);
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isDate=true;
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} catch (ParseException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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if(clomn.endsWith("_start")){
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clomn=clomn.substring(0,clomn.lastIndexOf("_start"));
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if(StringUtils.isNotBlank(alias)) whereBuilder.append(alias.trim()+".");
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whereBuilder.append(clomn).append(">=");
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if(isDate){
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whereBuilder.append("date_format('")
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.append(value).append("','%Y-%m-%d %H:%i:%S')");
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}else if(value.indexOf(" ")>-1){
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whereBuilder.append("'").append(requestMap.get(paramName)[0]).append("'");
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}else{
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whereBuilder.append(requestMap.get(paramName)[0]);
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}
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whereBuilder.append(" and ");
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}else if(clomn.endsWith("_end")){
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clomn=clomn.substring(0,clomn.lastIndexOf("_end"));
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if(StringUtils.isNotBlank(alias)) whereBuilder.append(alias.trim()+".");
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whereBuilder.append(clomn).append("<=");
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if(isDate){
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whereBuilder.append("DATE_FORMAT('")
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.append(value).append("','%Y-%m-%d %H:%i:%S')");
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}else if(value.indexOf(" ")>-1){
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whereBuilder.append("'").append(requestMap.get(paramName)[0]).append("'");
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}else{
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whereBuilder.append(requestMap.get(paramName)[0]);
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}
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whereBuilder.append(" and ");
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}else{
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if(StringUtils.isNotBlank(alias)) whereBuilder.append(alias.trim()+".");
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whereBuilder.append(clomn).append("=");
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if(isDate){
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whereBuilder.append("date_format('")
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.append(value).append("','%Y-%m-%d %H:%i:%S')");
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}else if(value.indexOf(" ")>-1){
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whereBuilder.append("'").append(requestMap.get(paramName)[0]).append("'");
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}else{
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whereBuilder.append(requestMap.get(paramName)[0]);
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}
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whereBuilder.append(" and ");
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}
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}
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}
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if (whereBuilder.length() > 0) {
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whereBuilder.delete(whereBuilder.lastIndexOf(" and "), whereBuilder.length());
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}
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return whereBuilder.toString();
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}
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/**
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* 构造方法
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* @param pageNo 当前页码
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* @param pageSize 分页大小
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*/
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public PageLog(int pageNo, int pageSize) {
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this(pageNo, pageSize, 0);
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}
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/**
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* 构造方法
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* @param pageNo 当前页码
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* @param pageSize 分页大小
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* @param count 数据条数
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*/
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public PageLog(int pageNo, int pageSize, long count) {
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this(pageNo, pageSize, count, new ArrayList<T>());
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}
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/**
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* 构造方法
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* @param pageNo 当前页码
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* @param pageSize 分页大小
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* @param count 数据条数
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* @param list 本页数据对象列表
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*/
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public PageLog(int pageNo, int pageSize, long count, List<T> list) {
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this.setCount(count);
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this.setPageNo(pageNo);
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this.pageSize = pageSize;
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this.list = list;
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}
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/**
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* 初始化参数
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*/
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public void initialize(){
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//1
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this.first = 1;
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// 控制接口是否启用count last
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if (this.count!=0 && this.last!=0) {
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//this.last = (int)(count / (this.pageSize < 1 ? 20 : this.pageSize) + first - 1);
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/*if (this.count % this.pageSize != 0 || this.last == 0) {
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this.last++;
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}*/
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if (this.last < this.first) {
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this.last = this.first;
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}
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if (this.pageNo <= 1) {
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this.pageNo = this.first;
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this.firstPage=true;
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}
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if (this.pageNo >= this.last) {
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this.pageNo = this.last;
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this.lastPage=true;
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}
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if (this.pageNo < this.last - 1) {
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this.next = this.pageNo + 1;
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} else {
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this.next = this.last;
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}
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if (this.pageNo > 1) {
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this.prev = this.pageNo - 1;
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} else {
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this.prev = this.first;
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}
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//2
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if (this.pageNo < this.first) {// 如果当前页小于首页
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this.pageNo = this.first;
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}
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if (this.pageNo > this.last) {// 如果当前页大于尾页
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this.pageNo = this.last;
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}
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}else {
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//首页
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if (this.pageNo <= 1) {
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this.pageNo = this.first;
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this.firstPage=true;
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}
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//最后一页
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if(list.size()<this.pageSize){
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this.lastPage=true;
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}
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//下一页
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if (list.size() >= this.pageSize) {
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this.next = this.pageNo + 1;
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}
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// 上一页
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if (pageNo > 1) {
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this.prev = this.pageNo - 1;
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} else {
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this.prev = this.first;
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}
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//2
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if (this.pageNo < this.first) {// 如果当前页小于首页
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this.pageNo = this.first;
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}
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}
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}
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/**
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* 默认输出当前分页标签
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* <div class="page">${page}</div>
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*/
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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// 控制接口返回count last 切换分页
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if (this.count!=0) {
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if(list != null && list.isEmpty()) {
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return "<div class=\"none-data\"><i class=\"fa fa-warning font-red-flamingo\"></i> "+requestContext.getMessage("noneData")+"</div>";
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}
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if (pageNo == first) {// 如果是首页
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">« "+requestContext.getMessage("previousPage")+"</a></li>\n");
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} else {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+prev+","+pageSize+",'"+funcParam+"');\">« "+requestContext.getMessage("previousPage")+"</a></li>\n");
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}
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int begin = pageNo - (length / 2);
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if (begin < first) {
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begin = first;
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}
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int end = begin + length - 1;
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if (end >= last) {
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end = last;
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begin = end - length + 1;
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if (begin < first) {
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begin = first;
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}
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}
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if (begin > first) {
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int i = 0;
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for (i = first; i < first + slider && i < begin; i++) {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">"
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+ (i + 1 - first) + "</a></li>\n");
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}
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if (i < begin) {
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">...</a></li>\n");
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}
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}
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for (int i = begin; i <= end; i++) {
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if (i == pageNo) {
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sb.append("<li class=\"active\"><a href=\"javascript:\">" + (i + 1 - first)
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+ "</a></li>\n");
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} else {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">"
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+ (i + 1 - first) + "</a></li>\n");
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}
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}
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if (last - end > slider) {
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">...</a></li>\n");
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end = last - slider;
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}
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for (int i = end + 1; i <= last; i++) {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">"
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+ (i + 1 - first) + "</a></li>\n");
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}
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if (pageNo == last) {
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">"+requestContext.getMessage("nextPage")+" »</a></li>\n");
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} else {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+next+","+pageSize+",'"+funcParam+"');\">"
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+ ""+requestContext.getMessage("nextPage")+" »</a></li>\n");
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}
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sb.append("<li class=\"disabled controls\"><a href=\"javascript:\">"+requestContext.getMessage("current")+" ");
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sb.append("<input type=\"text\" value=\""+pageNo+"\" onkeypress=\"var e=window.event||this;var c=e.keyCode||e.which;if(c==13)");
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sb.append(funcName+"(this.value,"+pageSize+",'"+funcParam+"');\" onclick=\"this.select();\"/> / ");
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/*sb.append(pageNo+" / ");*/
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sb.append(last+" "+requestContext.getMessage("page")+"，");
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/*sb.append("<input type=\"text\" value=\""+last+"\" onkeypress=\"var e=window.event||this;var c=e.keyCode||e.which;if(c==13)");
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sb.append(funcName+"("+pageNo+",this.value,'"+funcParam+"');\" onclick=\"this.select();\"/> "+requestContext.getMessage("page")+"，");*/
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sb.append(""+requestContext.getMessage("total")+" <span id='showTotalCount'>" + count + "</span> "+requestContext.getMessage("count")+""+(message!=null?message:"")+"</a></li>\n");
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sb.insert(0,"<ul>\n").append("</ul>\n");
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sb.append("<div style=\"clear:both;\"></div>");
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// sb.insert(0,"<div class=\"page\">\n").append("</div>\n");
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}else {
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if(list != null && list.isEmpty()&&pageNo<=1) {
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return "<div class=\"none-data\"><i class=\"fa fa-warning font-red-flamingo\"></i> "+requestContext.getMessage("noneData")+"</div>";
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}
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+first+","+pageSize+",'"+funcParam+"');\">"+requestContext.getMessage("firstPage")+"</a></li>\n");
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if (pageNo == first) {// 如果是首页
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">« "+requestContext.getMessage("previousPage")+"</a></li>\n");
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} else {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+prev+","+pageSize+",'"+funcParam+"');\">« "+requestContext.getMessage("previousPage")+"</a></li>\n");
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}
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">"+pageNo+"</a></li>\n");
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// 最后一页 未铺满 集合不为空
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if (list != null && !list.isEmpty()&&list.size()<pageSize) {
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">"+requestContext.getMessage("nextPage")+" »</a></li>\n");
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}else if(pageNo>1&&list.isEmpty()){
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sb.append("<li class=\"disabled\"><a href=\"javascript:\">"+requestContext.getMessage("nextPage")+" »</a></li>\n");
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}else {
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sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+next+","+pageSize+",'"+funcParam+"');\">"
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+ ""+requestContext.getMessage("nextPage")+" »</a></li>\n");
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}
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sb.insert(0,"<ul>\n").append("</ul>\n");
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sb.append("<div style=\"clear:both;\"></div>");
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}
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return sb.toString();
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}
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/**
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* 获取分页HTML代码
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* @return
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*/
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@JsonIgnore
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public String getHtml(){
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return toString();
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}
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/**
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* 获取设置总数
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* @return
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*/
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public long getCount() {
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||
return count;
|
||
}
|
||
|
||
/**
|
||
* 设置数据总数
|
||
* @param count
|
||
*/
|
||
public void setLast(Integer last) {
|
||
this.last = last;
|
||
}
|
||
/**
|
||
* 设置数据总数
|
||
* @param count
|
||
*/
|
||
public void setCount(long count) {
|
||
this.count = count;
|
||
if (pageSize >= count){
|
||
pageNo = 1;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 获取当前页码
|
||
* @return
|
||
*/
|
||
public int getPageNo() {
|
||
return pageNo;
|
||
}
|
||
|
||
/**
|
||
* 设置当前页码
|
||
* @param pageNo
|
||
*/
|
||
public void setPageNo(int pageNo) {
|
||
this.pageNo = pageNo;
|
||
}
|
||
|
||
/**
|
||
* 获取页面大小
|
||
* @return
|
||
*/
|
||
public int getPageSize() {
|
||
return pageSize;
|
||
}
|
||
|
||
/**
|
||
* 设置页面大小（最大500）
|
||
* @param pageSize
|
||
*/
|
||
public void setPageSize(int pageSize) {
|
||
if (pageSize == -1 || pageSize > 0 ) {
|
||
this.pageSize = pageSize;
|
||
} else {
|
||
this.pageSize = Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30));
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 首页索引
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public int getFirst() {
|
||
return first;
|
||
}
|
||
|
||
/**
|
||
* 尾页索引
|
||
* @return
|
||
*/
|
||
public int getLast() {
|
||
return last;
|
||
}
|
||
/**
|
||
* 获取页面总数
|
||
* @return getLast();
|
||
*/
|
||
@JsonIgnore
|
||
public int getTotalPage() {
|
||
return getLast();
|
||
}
|
||
/**
|
||
* 是否为第一页
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public boolean isFirstPage() {
|
||
return firstPage;
|
||
}
|
||
|
||
/**
|
||
* 是否为最后一页
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public boolean isLastPage() {
|
||
return lastPage;
|
||
}
|
||
|
||
|
||
/**
|
||
* @return where
|
||
*/
|
||
@JsonIgnore
|
||
public String getWhere() {
|
||
return where;
|
||
}
|
||
|
||
/**
|
||
* @param where 要设置的 where
|
||
*/
|
||
public void setWhere(String where) {
|
||
this.where = where;
|
||
}
|
||
|
||
/**
|
||
* 上一页索引值
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public int getPrev() {
|
||
if (isFirstPage()) {
|
||
return pageNo;
|
||
} else {
|
||
return pageNo - 1;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 下一页索引值
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public int getNext() {
|
||
if (isLastPage()) {
|
||
return pageNo;
|
||
} else {
|
||
return pageNo + 1;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 获取本页数据对象列表
|
||
* @return List<T>
|
||
*/
|
||
public List<T> getList() {
|
||
return list;
|
||
}
|
||
|
||
/**
|
||
* 设置本页数据对象列表
|
||
* @param list
|
||
*/
|
||
public PageLog<T> setList(List<T> list) {
|
||
this.list = list;
|
||
initialize();
|
||
return this;
|
||
}
|
||
|
||
/**
|
||
* 获取查询排序字符串
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public String getOrderBy() {
|
||
// SQL过滤，防止注入
|
||
String reg = "(?:')|(?:--)|(/\\*(?:.|[\\n\\r])*?\\*/)|"
|
||
+ "(\\b(select|update|and|or|delete|insert|trancate|char|into|substr|ascii|declare|exec|count|master|into|drop|execute)\\b)";
|
||
Pattern sqlPattern = Pattern.compile(reg, Pattern.CASE_INSENSITIVE);
|
||
if (sqlPattern.matcher(orderBy).find()) {
|
||
return "";
|
||
}
|
||
return orderBy;
|
||
}
|
||
|
||
/**
|
||
* 设置查询排序，标准查询有效， 实例： updatedate desc, name asc
|
||
*/
|
||
public void setOrderBy(String orderBy) {
|
||
this.orderBy = orderBy;
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* @return fields 字段属性查询，拼接用,分隔
|
||
*/
|
||
@JsonIgnore
|
||
public String getFields() {
|
||
return fields;
|
||
}
|
||
|
||
/**
|
||
* @param fields 要设置的 fields
|
||
*/
|
||
public void setFields(String fields) {
|
||
this.fields = fields;
|
||
}
|
||
|
||
/**
|
||
* 获取点击页码调用的js函数名称
|
||
* function ${page.funcName}(pageNo){location="${ctx}/list-${category.id}${urlSuffix}?pageNo="+i;}
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public String getFuncName() {
|
||
return funcName;
|
||
}
|
||
|
||
/**
|
||
* 设置点击页码调用的js函数名称，默认为page，在一页有多个分页对象时使用。
|
||
* @param funcName 默认为page
|
||
*/
|
||
public void setFuncName(String funcName) {
|
||
this.funcName = funcName;
|
||
}
|
||
|
||
/**
|
||
* 获取分页函数的附加参数
|
||
* @return
|
||
*/
|
||
@JsonIgnore
|
||
public String getFuncParam() {
|
||
return funcParam;
|
||
}
|
||
@JsonIgnore
|
||
public int getMaxExportSize() {
|
||
return maxExportSize;
|
||
}
|
||
public void setMaxExportSize(int maxExportSize) {
|
||
this.maxExportSize = maxExportSize;
|
||
}
|
||
/**
|
||
* 设置分页函数的附加参数
|
||
* @return
|
||
*/
|
||
public void setFuncParam(String funcParam) {
|
||
this.funcParam = funcParam;
|
||
}
|
||
|
||
/**
|
||
* 设置提示消息，显示在“共n条”之后
|
||
* @param message
|
||
*/
|
||
public void setMessage(String message) {
|
||
this.message = message;
|
||
}
|
||
|
||
/**
|
||
* 分页是否有效
|
||
* @return this.pageSize==-1
|
||
*/
|
||
@JsonIgnore
|
||
public boolean isDisabled() {
|
||
return this.pageSize==-1;
|
||
}
|
||
|
||
/**
|
||
* 是否进行总数统计
|
||
* @return this.count==-1
|
||
*/
|
||
@JsonIgnore
|
||
public boolean isNotCount() {
|
||
return this.count==-1;
|
||
}
|
||
|
||
/**
|
||
* 获取 Hibernate FirstResult
|
||
*/
|
||
@JsonIgnore
|
||
public int getFirstResult(){
|
||
int firstResult = (getPageNo() - 1) * getPageSize();
|
||
if (firstResult >= getCount()) {
|
||
firstResult = 0;
|
||
}
|
||
return firstResult;
|
||
}
|
||
/**
|
||
* 获取 Hibernate MaxResults
|
||
*/
|
||
@JsonIgnore
|
||
public int getMaxResults(){
|
||
return getPageSize();
|
||
}
|
||
|
||
/**
|
||
* alias
|
||
* @return alias
|
||
*/
|
||
|
||
public String getAlias() {
|
||
return alias;
|
||
}
|
||
|
||
/**
|
||
* @param alias the alias to set
|
||
*/
|
||
public void setAlias(String alias) {
|
||
this.alias = alias;
|
||
}
|
||
|
||
}
|