程序包 top.tangyh.basic.database.mybatis.conditions.query

类 QueryWrap<T>

java.lang.Object

com.baomidou.mybatisplus.core.conditions.Wrapper<T>

com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,String,QueryWrap<T>>

top.tangyh.basic.database.mybatis.conditions.query.QueryWrap<T>

所有已实现的接口:

com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>, com.baomidou.mybatisplus.core.conditions.interfaces.Func<QueryWrap<T>,String>, com.baomidou.mybatisplus.core.conditions.interfaces.Join<QueryWrap<T>>, com.baomidou.mybatisplus.core.conditions.interfaces.Nested<QueryWrap<T>,QueryWrap<T>>, com.baomidou.mybatisplus.core.conditions.ISqlSegment, com.baomidou.mybatisplus.core.conditions.query.Query<QueryWrap<T>,T,String>, Serializable

public class QueryWrap<T>
extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,String,QueryWrap<T>>
implements com.baomidou.mybatisplus.core.conditions.query.Query<QueryWrap<T>,T,String>

Entity 对象封装操作类

相比 QueryWrapper 的增强如下： 1，new QueryWrapper(T entity)时， 对entity 中的string字段 %和_ 符号进行转义，便于模糊查询 2，对like方法的参数 %和_ 符号进行转义，便于模糊查询 3，对nested、eq、ne、gt、ge、lt、le、in、like 等方法 进行条件判断，null 或 "" 字段不加入查询 4，增加 leFooter 方法， 将日期参数值，强制转换成当天 23：59：59 5，增加 geHeader 方法， 将日期参数值，强制转换成当天 00：00：00

从以下版本开始:

2018-05-25

作者:

hubin miemie HCL

另请参阅:

• 序列化表格

嵌套类概要

从类继承的嵌套类/接口 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

com.baomidou.mybatisplus.core.conditions.AbstractWrapper.DoSomething

字段概要

从类继承的字段 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

expression, lastSql, paramAlias, paramNameSeq, paramNameValuePairs, sqlComment, sqlFirst, typedThis

构造器概要

构造器

构造器	说明
QueryWrap()
QueryWrap(Class<T> entityClass)
QueryWrap(T entity)
QueryWrap(T entity, String... columns)

方法概要

修饰符和类型	方法	说明
QueryWrap<T>	between(String column, Object val1, Object val2)
QueryWrap<T>	cancelSkipEmpty()	取消跳过空的字符串 不允许跳过空的字符串
QueryWrap<T>	checkSqlInjection()	开启检查 SQL 注入
void	clear()
protected String	columnToString(String column)
QueryWrap<T>	eq(String column, Object val)
QueryWrap<T>	ge(String column, Object val)
QueryWrap<T>	geHeader(String column, LocalDate val)
QueryWrap<T>	geHeader(String column, LocalDateTime val)
String	getSqlSelect()
QueryWrap<T>	gt(String column, Object val)
<A> QueryWrap<T>	ignore(BiFunction<T,A,?> setColumn)	忽略实体中的某些字段，实体中的字段默认是会除了null以外的全部进行等值匹配 再次可以进行忽略
QueryWrap<T>	in(String column, Object... values)
QueryWrap<T>	in(String column, Collection<?> coll)
protected QueryWrap<T>	instance()	用于生成嵌套 sql
LbQueryWrap<T>	lambda()	返回一个支持 lambda 函数写法的 wrapper
QueryWrap<T>	le(String column, Object val)
QueryWrap<T>	leFooter(String column, LocalDate val)
QueryWrap<T>	leFooter(String column, LocalDateTime val)
QueryWrap<T>	like(String column, Object val)
QueryWrap<T>	likeLeft(String column, Object val)
QueryWrap<T>	likeRight(String column, Object val)
QueryWrap<T>	lt(String column, Object val)
QueryWrap<T>	ne(String column, Object val)
QueryWrap<T>	nested(Consumer<QueryWrap<T>> consumer)
QueryWrap<T>	notBetween(String column, Object val1, Object val2)
QueryWrap<T>	notLike(String column, Object val)
QueryWrap<T>	select(boolean condition, List<String> columns)
QueryWrap<T>	select(Class<T> entityClass, Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate)

从类继承的方法 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

addCondition, addNestedCondition, allEq, allEq, and, and, appendSqlSegments, apply, between, clone, columnsToString, columnsToString, columnToSqlSegment, comment, doGroupBy, doOrderBy, eq, eqSql, exists, first, formatParam, formatSqlMaybeWithParam, func, ge, geSql, getEntity, getEntityClass, getExpression, getParamAlias, getParamNameValuePairs, getSqlComment, getSqlFirst, getSqlSegment, groupBy, groupBy, groupBy, groupBy, gt, gtSql, having, in, in, inExpression, inExpression, initNeed, inSql, isNotNull, isNull, isUseAnnotationOrderBy, last, le, leSql, like, likeLeft, likeRight, likeValue, lt, ltSql, maybeDo, ne, nested, not, not, notBetween, notExists, notIn, notIn, notInSql, notLike, notLikeLeft, notLikeRight, or, or, orderBy, orderBy, orderBy, orderBy, setEntity, setEntityClass, setParamAlias

从类继承的方法 com.baomidou.mybatisplus.core.conditions.Wrapper

getCustomSqlSegment, getSqlSet, getTargetSql, isEmptyOfEntity, isEmptyOfNormal, isEmptyOfWhere, isNonEmptyOfEntity, isNonEmptyOfNormal, isNonEmptyOfWhere, nonEmptyOfEntity, nonEmptyOfNormal, nonEmptyOfWhere

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Compare

allEq, allEq, allEq, allEq, notLikeLeft, notLikeRight

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Func

eqSql, func, geSql, groupBy, groupBy, groupBy, gtSql, having, inSql, isNotNull, isNull, leSql, ltSql, notIn, notIn, notInSql, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByDesc, orderByDesc, orderByDesc, orderByDesc, orderByDesc, orderByDesc, orderByDesc

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Join

apply, comment, exists, first, last, notExists, or

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Nested

and, not, or

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.query.Query

select, select, select, select

构造器详细资料

QueryWrap

public QueryWrap(T entity)

QueryWrap

public QueryWrap()

QueryWrap

public QueryWrap(T entity,
 String... columns)

QueryWrap

public QueryWrap(Class<T> entityClass)

方法详细资料

checkSqlInjection

public QueryWrap<T> checkSqlInjection()

开启检查 SQL 注入

columnToString

protected String columnToString(String column)

覆盖:

columnToString 在类中 com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,String,QueryWrap<T>>

select

public QueryWrap<T> select(boolean condition,
 List<String> columns)

指定者:

select 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<QueryWrap<T>,T,String>

select

public QueryWrap<T> select(Class<T> entityClass,
 Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate)

指定者:

select 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<QueryWrap<T>,T,String>

getSqlSelect

public String getSqlSelect()

指定者:

getSqlSelect 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<QueryWrap<T>,T,String>

覆盖:

getSqlSelect 在类中 com.baomidou.mybatisplus.core.conditions.Wrapper<T>

lambda

public LbQueryWrap<T> lambda()

返回一个支持 lambda 函数写法的 wrapper

instance

protected QueryWrap<T> instance()

用于生成嵌套 sql

故 sqlSelect 不向下传递

指定者:

instance 在类中 com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,String,QueryWrap<T>>

clear

public void clear()

覆盖:

clear 在类中 com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,String,QueryWrap<T>>

nested

public QueryWrap<T> nested(Consumer<QueryWrap<T>> consumer)

指定者:

nested 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Nested<QueryWrap<T>,QueryWrap<T>>

eq

public QueryWrap<T> eq(String column,
 Object val)

指定者:

eq 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

ne

public QueryWrap<T> ne(String column,
 Object val)

指定者:

ne 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

gt

public QueryWrap<T> gt(String column,
 Object val)

指定者:

gt 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

ge

public QueryWrap<T> ge(String column,
 Object val)

指定者:

ge 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

geHeader

public QueryWrap<T> geHeader(String column,
 LocalDateTime val)

geHeader

public QueryWrap<T> geHeader(String column,
 LocalDate val)

lt

public QueryWrap<T> lt(String column,
 Object val)

指定者:

lt 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

le

public QueryWrap<T> le(String column,
 Object val)

指定者:

le 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

leFooter

public QueryWrap<T> leFooter(String column,
 LocalDateTime val)

leFooter

public QueryWrap<T> leFooter(String column,
 LocalDate val)

between

public QueryWrap<T> between(String column,
 Object val1,
 Object val2)

指定者:

between 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

notBetween

public QueryWrap<T> notBetween(String column,
 Object val1,
 Object val2)

指定者:

notBetween 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

like

public QueryWrap<T> like(String column,
 Object val)

指定者:

like 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

notLike

public QueryWrap<T> notLike(String column,
 Object val)

指定者:

notLike 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

likeLeft

public QueryWrap<T> likeLeft(String column,
 Object val)

指定者:

likeLeft 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

likeRight

public QueryWrap<T> likeRight(String column,
 Object val)

指定者:

likeRight 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Compare<QueryWrap<T>,String>

in

public QueryWrap<T> in(String column,
 Collection<?> coll)

指定者:

in 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Func<QueryWrap<T>,String>

in

public QueryWrap<T> in(String column,
 Object... values)

指定者:

in 在接口中 com.baomidou.mybatisplus.core.conditions.interfaces.Func<QueryWrap<T>,String>

cancelSkipEmpty

public QueryWrap<T> cancelSkipEmpty()

取消跳过空的字符串 不允许跳过空的字符串

返回:

自己

ignore

public <A> QueryWrap<T> ignore(BiFunction<T,A,?> setColumn)

忽略实体中的某些字段，实体中的字段默认是会除了null以外的全部进行等值匹配 再次可以进行忽略

参数:

setColumn - 这个是传入的待忽略字段的set方法

返回:

自己