cn.schoolwow.quickdao.util

类 ReflectionUtil

java.lang.Object

cn.schoolwow.quickdao.util.ReflectionUtil

public class ReflectionUtil
extends Object

字段概要

字段

限定符和类型	字段和说明
static Map<Class,Field>	idCache 记录类对应主键字段

构造器概要

构造器

构造器和说明
ReflectionUtil()

方法概要

限定符和类型	方法和说明
static Field[]	getCompositField(Class _class, Class fieldType)
static Field	getCompositField(Class _class, Class fieldType, String fieldName)
static Field[]	getFields(Class _class) 获取类属性
static Field	getId(Class _class) 获取id属性
static boolean	hasId(Object instance) 对象是否存在id
static boolean	hasUniqueKey(Class _class) 该类是否有唯一性约束
static boolean	isIdField(Field field) 获取id属性
static com.alibaba.fastjson.JSONArray	mappingResultSetToJSONArray(ResultSet resultSet, String tableNameAlias, int count) 映射结果集到JSONArray中
static <T> List<T>	mappingSingleResultToList(ResultSet resultSet, int count, Class<T> _class) 将ResultSet映射到List中
static void	setId(Object instance, long value) 获取id属性
static String	setValueWithInsertIgnore(PreparedStatement ps, Object instance, String sql) 直接插入 为prepareStatement赋值 返回实际执行的SQL语句
static String	setValueWithUpdateById(PreparedStatement ps, Object instance, String sql) 根据id更新 为prepareStatement赋值
static String	setValueWithUpdateByUniqueKey(PreparedStatement ps, Object instance, String sql) 根据UniqueKey更新 为prepareStatement赋值

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

idCache

public static Map<Class,Field> idCache

记录类对应主键字段

构造器详细资料

ReflectionUtil

public ReflectionUtil()

方法详细资料

isIdField

public static boolean isIdField(Field field)

获取id属性

getId

public static Field getId(Class _class)

获取id属性

setId

public static void setId(Object instance,
                         long value)
                  throws NoSuchFieldException,
                         IllegalAccessException

获取id属性

抛出:

NoSuchFieldException

IllegalAccessException

getFields

public static Field[] getFields(Class _class)

获取类属性

getCompositField

public static Field[] getCompositField(Class _class,
                                       Class fieldType)

getCompositField

public static Field getCompositField(Class _class,
                                     Class fieldType,
                                     String fieldName)

hasUniqueKey

public static boolean hasUniqueKey(Class _class)

该类是否有唯一性约束

hasId

public static boolean hasId(Object instance)
                     throws IllegalAccessException

对象是否存在id

抛出:

IllegalAccessException

setValueWithInsertIgnore

public static String setValueWithInsertIgnore(PreparedStatement ps,
                                              Object instance,
                                              String sql)
                                       throws SQLException,
                                              IllegalAccessException

直接插入 为prepareStatement赋值 返回实际执行的SQL语句

抛出:

SQLException

IllegalAccessException

setValueWithUpdateById

public static String setValueWithUpdateById(PreparedStatement ps,
                                            Object instance,
                                            String sql)
                                     throws SQLException,
                                            IllegalAccessException,
                                            NoSuchFieldException

根据id更新 为prepareStatement赋值

抛出:

SQLException

IllegalAccessException

NoSuchFieldException

setValueWithUpdateByUniqueKey

public static String setValueWithUpdateByUniqueKey(PreparedStatement ps,
                                                   Object instance,
                                                   String sql)
                                            throws SQLException,
                                                   IllegalAccessException

根据UniqueKey更新 为prepareStatement赋值

抛出:

SQLException

IllegalAccessException

mappingSingleResultToList

public static <T> List<T> mappingSingleResultToList(ResultSet resultSet,
                                                    int count,
                                                    Class<T> _class)
                                             throws SQLException,
                                                    IllegalAccessException,
                                                    InstantiationException,
                                                    NoSuchMethodException,
                                                    InvocationTargetException

将ResultSet映射到List中

返回:

结果集的映射

抛出:

SQLException

IllegalAccessException

InstantiationException

NoSuchMethodException

InvocationTargetException

mappingResultSetToJSONArray

public static com.alibaba.fastjson.JSONArray mappingResultSetToJSONArray(ResultSet resultSet,
                                                                         String tableNameAlias,
                                                                         int count)
                                                                  throws SQLException

映射结果集到JSONArray中

抛出:

SQLException