springMvc+myBatis+freemarker+maven

package com.xxx.core; import java.net.URLEncoder; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import org.springframework.util.StringUtils; import com.xxx.po.Po; /** * 查询分页总类 */ public class Pager extends Po { private static final long serialVersionUID = -5016968481992128023L; private Map<String, String> f = new HashMap<String, String>(); private Order order = new Order(); private List<Filter> filtersList = null; private String pageFlag = "pageFlag"; private List resultList; private int pageNo = 1; private int pageRows = 10; private int totalCount = -1; private int totalPages; /** * 添加过滤器,paramKey为request传递的parameter的key,对应页面表单中输入项的name,用于对原有查询进行限定 * * @param paramKey * @param filter */ public void addF(String paramKey, String value) { if (!StringUtils.isEmpty(value)) { this.f.put(paramKey, value); } } /** * 得到过滤条件列表 * * @return */ public List<Filter> getFilterList() { if (this.filtersList == null) { filtersList = new ArrayList(); Set<Entry<String, String>> entrySet = this.f.entrySet(); for (Entry<String, String> entry : entrySet) { filtersList.add(new Filter(entry.getKey(), entry.getValue())); } } return filtersList; } public int getPageRows() { return pageRows; } public void setPageRows(int pageRows) { this.pageRows = pageRows; } public int getTotalCount() { return totalCount; } public void setTotalCount(int totalCount) { this.totalCount = totalCount; } /** * 当前页. */ public int getPageNo() { if (pageNo < 1) pageNo = 1; // if(pageNo>getTotalPages()){ // pageNo=getTotalPages(); // } return pageNo; } /** * 设置当前页. */ public void setPageNo(final int pageNo) { this.pageNo = pageNo; } /** * 首记录. */ public int getFirst() { return ((getPageNo() - 1) * pageRows) + 1; } /** * 尾记录. */ public int getLast() { return (getFirst() + pageRows) > getTotalCount() ? getTotalCount() : (getFirst() + pageRows - 1); } public int getTotalPages() { int count = (totalCount + pageRows - 1) / pageRows; return count; } public void setTotalPages(int totalPages) { if (totalPages == 0) totalPages = 1; this.totalPages = totalPages; } /** * 总记录数 */ public void resetTotalCount(int totalCount) { if (totalCount < 0) { totalCount = 0; } int count = (totalCount + pageRows - 1) / pageRows; setTotalCount(totalCount); setTotalPages(count); if (getPageNo() > getTotalPages()) { setPageNo(getTotalPages()); } } /** * 是否还有下一页. */ public boolean isHasNext() { return (pageNo + 1 <= getTotalPages()); } /** * 下一页页号. */ public int getNextPage() { if (isHasNext()) { return pageNo + 1; } else { return pageNo; } } /** * 是否还有上一页. */ public boolean isHasPre() { return (pageNo - 1 >= 1); } /** * 上一页页号. */ public int getPrePage() { if (isHasPre()) { return pageNo - 1; } else { return pageNo; } } /** * 供后台查询调用 判断最后一页数据大小 * * @return */ public int getBeginCount() { int beginCount = (getPageNo() - 1) * pageRows; if (beginCount >= this.getTotalCount()) { int modpageSize = this.getTotalCount() % this.pageRows; if (modpageSize == 0) { modpageSize = this.pageRows; } beginCount = this.getTotalCount() + 1 - modpageSize; } return beginCount < 0 ? 0 : beginCount; } private String url; public String getUrl() { if (url == null) { StringBuffer sbUrl = new StringBuffer(); Set<Entry<String, String>> entrySet = this.f.entrySet(); for (Entry<String, String> entry : entrySet) { sbUrl.append("&").append("f[").append(entry.getKey()) .append("]").append("=") .append(URLEncoder.encode(entry.getValue())); } sbUrl.append("&").append("pageRows=").append(getPageRows()); url = sbUrl.substring(1).toString(); } return url; } private String fullUrl; public String getFullUrl() { if (fullUrl == null) { StringBuffer sbUrl = new StringBuffer(); if (order.getField() != null && order.getSort() != null) sbUrl.append("&o.field=") .append(URLEncoder.encode(order.getField())) .append("&o.sort=") .append(URLEncoder.encode(order.getSort())); fullUrl = getUrl() + sbUrl.toString(); } return fullUrl; } public Map<String, String> getF() { return f; } public void setF(Map<String, String> f) { this.f = f; } public Order getOrder() { return order; } public void setOrder(Order order) { this.order = order; } public List getResultList() { return resultList; } public void setResultList(List resultList) { this.resultList = resultList; } }