cn.ponfee.commons.model

类 PageHandler

java.lang.Object

cn.ponfee.commons.model.PageHandler

public final class PageHandler
extends Object

分页参数处理类 基于github上的mybatis分页工具 https://github.com/pagehelper/Mybatis-PageHelper/blob/master/wikis/zh/HowToUse.md

作者:

Ponfee

字段概要

字段

限定符和类型	字段和说明
static String	DEFAULT_LIMIT
static String	DEFAULT_OFFSET
static String	DEFAULT_PAGE_NUM
static String	DEFAULT_PAGE_SIZE
static int	MAX_SIZE
static PageHandler	NORMAL
static Map<String,Object>	QUERY_ALL_PARAMS

构造器概要

构造器

构造器和说明
PageHandler(String paramPageNum, String paramPageSize, String paramOffset, String paramLimit)

方法概要

限定符和类型	方法和说明
static int	computeOffset(long pageNum, int pageSize)
static int	computePageNum(long offset, int limit)
static int	computeTotalPages(long totalRecords, int pageSize)
void	handle(Object params) Handles the page parameters
static void	offsetPage(Integer offset, Integer limit) Page query with offset and limit RowBounds.limit=0则会查询出全部的结果
static void	startPage(Integer pageNum, Integer pageSize) Page query with pageNum and pageSize pageSize=0时查询全部数据

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

DEFAULT_PAGE_NUM

public static final String DEFAULT_PAGE_NUM

另请参阅:

常量字段值

DEFAULT_PAGE_SIZE

public static final String DEFAULT_PAGE_SIZE

另请参阅:

常量字段值

DEFAULT_OFFSET

public static final String DEFAULT_OFFSET

另请参阅:

常量字段值

DEFAULT_LIMIT

public static final String DEFAULT_LIMIT

另请参阅:

常量字段值

QUERY_ALL_PARAMS

public static final Map<String,Object> QUERY_ALL_PARAMS

NORMAL

public static final PageHandler NORMAL

MAX_SIZE

public static final int MAX_SIZE

另请参阅:

常量字段值

构造器详细资料

PageHandler

public PageHandler(String paramPageNum,
                   String paramPageSize,
                   String paramOffset,
                   String paramLimit)

方法详细资料

handle

public void handle(@Nonnull
                   Object params)

Handles the page parameters

参数:

params - the params

startPage

public static void startPage(Integer pageNum,
                             Integer pageSize)

Page query with pageNum and pageSize pageSize=0时查询全部数据

参数:

pageNum - the pageNum

pageSize - the pageSize

offsetPage

public static void offsetPage(Integer offset,
                              Integer limit)

Page query with offset and limit RowBounds.limit=0则会查询出全部的结果

参数:

offset - the offset

limit - the limit

computeTotalPages

public static int computeTotalPages(long totalRecords,
                                    int pageSize)

computePageNum

public static int computePageNum(long offset,
                                 int limit)

computeOffset

public static int computeOffset(long pageNum,
                                int pageSize)