cloud.agileframework.common.util.db

类 SessionUtil

java.lang.Object

cloud.agileframework.common.util.db.SessionUtil

public class SessionUtil
extends Object

从以下版本开始:

1.0

版本:

1.0

作者:

佟盟 日期 2021-06-08 13:05 描述 TODO

构造器概要

构造器

构造器和说明
SessionUtil()

方法概要

限定符和类型	方法和说明
static void	batchUpdate(Connection connection, List<String> sql)
static void	batchUpdate(Connection connection, String sql, List<Map<String,Object>> params) 批量更新
static long	count(Connection connection, String sql)
static long	count(Connection connection, String sql, Object param)
static List<Map<String,Object>>	execute(Connection connection, String sql)
static <T> List<T>	limit(Connection connection, String sql, Class<T> clazz, int offset, int count)
static <T> List<T>	limit(Connection connection, String sql, Class<T> clazz, Object param, int offset, int count)
static List<Map<String,Object>>	limit(Connection connection, String sql, int offset, int count)
static List<Map<String,Object>>	limit(Connection connection, String sql, Object param, int offset, int count)
static List<Map<String,Object>>	query(Connection connection, String sql)
static <T> List<T>	query(Connection connection, String sql, Class<T> clazz)
static <T> List<T>	query(Connection connection, String sql, Class<T> clazz, Object param) 查询并且将结果转换为java对象
static List<Map<String,Object>>	query(Connection connection, String sql, Object param) 查询
static <T> List<T>	toJavaObjectList(Class<T> clazz, List<Map<String,Object>> data) List Map转换为List clazz
static int	update(Connection connection, String sql)
static int	update(Connection connection, String sql, Object param)

从类继承的方法 java.lang.Object

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

构造器详细资料

SessionUtil

public SessionUtil()

方法详细资料

query

public static <T> List<T> query(Connection connection,
                                String sql,
                                Class<T> clazz,
                                Object param)
                         throws SQLException

查询并且将结果转换为java对象

类型参数:

T - 泛型

参数:

connection - 连接

sql - sql

clazz - 结果要转换的类型

param - sql占位参数

返回:

集合

抛出:

SQLException

query

public static <T> List<T> query(Connection connection,
                                String sql,
                                Class<T> clazz)
                         throws SQLException

抛出:

SQLException

query

public static List<Map<String,Object>> query(Connection connection,
                                             String sql,
                                             Object param)
                                      throws SQLException

查询

参数:

connection - 连接

sql - sql

param - sql占位参数

返回:

数据

抛出:

SQLException

query

public static List<Map<String,Object>> query(Connection connection,
                                             String sql)
                                      throws SQLException

抛出:

SQLException

limit

public static <T> List<T> limit(Connection connection,
                                String sql,
                                Class<T> clazz,
                                Object param,
                                int offset,
                                int count)
                         throws SQLException

抛出:

SQLException

limit

public static <T> List<T> limit(Connection connection,
                                String sql,
                                Class<T> clazz,
                                int offset,
                                int count)
                         throws SQLException

抛出:

SQLException

limit

public static List<Map<String,Object>> limit(Connection connection,
                                             String sql,
                                             Object param,
                                             int offset,
                                             int count)
                                      throws SQLException

抛出:

SQLException

limit

public static List<Map<String,Object>> limit(Connection connection,
                                             String sql,
                                             int offset,
                                             int count)
                                      throws SQLException

抛出:

SQLException

count

public static long count(Connection connection,
                         String sql,
                         Object param)
                  throws SQLException

抛出:

SQLException

count

public static long count(Connection connection,
                         String sql)
                  throws SQLException

抛出:

SQLException

toJavaObjectList

public static <T> List<T> toJavaObjectList(Class<T> clazz,
                                           List<Map<String,Object>> data)

List Map转换为List clazz

类型参数:

T - 泛型

参数:

clazz - 转换后的List元素类型

data - 转换前的数据

返回:

List clazz

execute

public static List<Map<String,Object>> execute(Connection connection,
                                               String sql)

update

public static int update(Connection connection,
                         String sql)
                  throws SQLException

抛出:

SQLException

update

public static int update(Connection connection,
                         String sql,
                         Object param)
                  throws SQLException

抛出:

SQLException

batchUpdate

public static void batchUpdate(Connection connection,
                               List<String> sql)
                        throws SQLException

抛出:

SQLException

batchUpdate

public static void batchUpdate(Connection connection,
                               String sql,
                               List<Map<String,Object>> params)
                        throws SQLException

批量更新

参数:

connection - 连接

sql - sql

params - sql的占位参数集合，一个元素就是一条数据

抛出:

SQLException