java分页实现
首先是dataobject，项目是用的是SpringMVCpublic class MbChannelExtensionDO {
private static final long serialVersionUID = 741231858441822688L;
//========== properties ==========
/**
* This property corresponds to db column ID.
*/
private String id;
/**
* This property corresponds to db column BANK_NAME.
*/
private String bankName;
/**
* This property corresponds to db column PRODUCT_TYPE.
*/
private String productType;
/**
* This property corresponds to db column EXCHANGE_TYPE.
*/
private String exchangeType;
/**
* This property corresponds to db column SIGN_VERIFY_ELE.
*/
private String signVerifyEle;
/**
* This property corresponds to db column CHANNEL_ID.
*/
private String channelId;
/**
* This property corresponds to db column GMT_CREATE.
*/
private Date gmtCreate;
/**
* This property corresponds to db column CREATOR.
*/
private String creator;
/**
* This property corresponds to db column GMT_MODIFIED.
*/
private Date gmtModified;
/**
* This property corresponds to db column UPDATOR.
*/
private String updator;
/**
* This property corresponds to db column STATUS.
*/
private String status;
//========== getters and setters ==========
/**
* Getter method for property id.
*
* @return property value of id
*/
public String getId() {
return id;
}
/**
* Setter method for property id.
*
* @param id value to be assigned to property id
*/
public void setId(String id) {
this.id = id;
}
/**
* Getter method for property BANK_NAME.
*
* @return property value of bankName
*/
public String getBankName() {
return bankName;
}
/**
* Setter method for property BANK_NAME.
*
* @param bankName value to be assigned to property bankName
*/
public void setBankName(String bankName) {
this.bankName = bankName;
}
/**
* Getter method for property PRODUCT_TYPE.
*
* @return property value of productTYPE
*/
public String getProductType() {
return productType;
}
/**
* Setter method for property PRODUCT_TYPE.
*
* @param productType value to be assigned to property productType
*/
public void setProductType(String productType) {
this.productType = productType;
}
/**
* Getter method for property SIGN_VERIFY_ELE.
*
* @return property value of signVerifyEle
*/
public String getSignVerifyEle() {
return signVerifyEle;
}
/**
* Setter method for property SIGN_VERIFY_ELE.
*
* @param signVerifyEle value to be assigned to property signVerifyEle
*/
public void setSignVerifyEle(String signVerifyEle) {
this.signVerifyEle = signVerifyEle;
}
/**
* Getter method for property EXCHANGE_TYPE.
*
* @return property value of signVerifyEle
*/
public String getExchangeType() {
return exchangeType;
}
/**
* Setter method for property EXCHANGE_TYPE.
*
* @param exchangeType value to be assigned to property exchangeType
*/
public void setExchangeType(String exchangeType ) { this.exchangeType = exchangeType;}
/**
* Getter method for property channelId.
*
* @return property value of channelId
*/
public String getChannelId() {
return channelId;
}
/**
* Setter method for property channelId.
*
* @param channelId value to be assigned to property channelId
*/
public void setChannelId(String channelId) {
this.channelId = channelId;
}
/**
* Getter method for property gmtCreate.
*
* @return property value of gmtCreate
*/
public Date getGmtCreate() {
return gmtCreate;
}
/**
* Setter method for property gmtCreate.
*
* @param gmtCreate value to be assigned to property gmtCreate
*/
public void setGmtCreate(Date gmtCreate) {
this.gmtCreate = gmtCreate;
}
/**
* Getter method for property creator.
*
* @return property value of creator
*/
public String getCreator() {
return creator;
}
/**
* Setter method for property creator.
*
* @param creator value to be assigned to property creator
*/
public void setCreator(String creator) {
this.creator = creator;
}
/**
* Getter method for property gmtModified.
*
* @return property value of gmtModified
*/
public Date getGmtModified() {
return gmtModified;
}
/**
* Setter method for property gmtModified.
*
* @param gmtModified value to be assigned to property gmtModified
*/
public void setGmtModified(Date gmtModified) {
this.gmtModified = gmtModified;
}
/**
* Getter method for property updator.
*
* @return property value of updator
*/
public String getUpdator() {
return updator;
}
/**
* Setter method for property updator.
*
* @param updator value to be assigned to property updator
*/
public void setUpdator(String updator) {
this.updator = updator;
}
/**
* Getter method for property status.
*
* @return property value of status
*/
public String getStatus() {
return status;
}
/**
* Setter method for property status.
*
* @param status value to be assigned to property status
*/
public void setStatus(String status) {
this.status = status;
}接着是使用分页的Page类
public class PageDO {
/**
* 总条数
*/
private int totalNumber;
/**
* 当前第几页
*/
private int currentPage;
/**
* 总页数
*/
private int totalPage;
/**
* 每页显示条数
*/
private int pageNumber = 10;
/**
* 根据当前对象中属性值计算并设置相关属性值
*/
public void count() {
// 计算总页数
int totalPageTemp = this.totalNumber / this.pageNumber;
int plus = (this.totalNumber % this.pageNumber) == 0 ? 0 : 1;
totalPageTemp = totalPageTemp + plus;
if(totalPageTemp <= 0) {
totalPageTemp = 1;
}
this.totalPage = totalPageTemp;
// 设置当前页数
// 总页数小于当前页数，应将当前页数设置为总页数
if(this.totalPage < this.currentPage) {
this.currentPage = this.totalPage;
}
// 当前页数小于1设置为1
if(this.currentPage < 1) {
this.currentPage = 1;
}
}
public int getTotalNumber() {
return totalNumber;
}
public void setTotalNumber(int totalNumber) {
this.totalNumber = totalNumber;
this.count();
}
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public int getPageNumber() {
return pageNumber;
}
public void setPageNumber(int pageNumber) {
this.pageNumber = pageNumber;
this.count();
}
}DAO层实现分页的两个方法
/**
* select MbChannelExtensionDO object by page to DB table MB_CHANNEL_EXTENSION, return primary key
*
*
* The sql statement for this operation is
* select * from MB_CHANNEL_EXTENSION where id not in(select id from MB_CHANNEL_EXTENSION
* where rownum<=(PAGESIZE*(CURRENTPAGE-1))) and rownum<=PAGESIZE order by id;
*
* @param page,mbChannelExtension
* @return List
* @throws DataAccessException
*/
@Override
public List getMbChannelExtensionByPage(MbChannelExtensionDO mbChannelExtensionDO,PageDO page) throws DataAccessException {
if (page == null) {
throw new IllegalArgumentException("Can't select by a null page.");
}
Map map=new HashMap();
map.put("page",page);
map.put("mbChannelExtension",mbChannelExtensionDO);
return getSqlMapClientTemplate().queryForList("MS-MB-CHANNEL-EXTENSION-SELECT-BY-PAGE", map);
}
@Override
public int countOfMbChannelExtension(MbChannelExtensionDO mbChannelExtensionDO ) throws DataAccessException {
int count=(Integer)getSqlMapClientTemplate().queryForObject("MS-MB-CHANNEL-EXTENSION-COUNT",mbChannelExtensionDO);
return count;
}
以下是controller层
@RequestMapping("/channlExtension")
public String selectCustomer(MbChannelExtensionDO customer,PageDO page,
HttpServletRequest request) {
if(page==null){
page=new PageDO();
page.setPageNumber(1);
page.count();
}
MbChannelExtensionDO channelExtension = new MbChannelExtensionDO();
channelExtension = customer;
page.setTotalNumber(channelExtensionService.countOfMbChannelExtension(customer));
this.tcustomerList = this.channelExtensionService.getMbChannelExtensionByPage(customer,page);
request.setAttribute("tcustomerList", tcustomerList);
request.setAttribute("page",page);
request.setAttribute("channelExtension",channelExtension);
return "/channlExtension/channlExtension";
}前端html和js