package com.mybatisflex.flex.utils;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.text.NumberFormat;
import java.util.Set;
/**
* 类型转换器
*
* @author mes
*/
public class Convert {
/**
* 转换为字符串<br>
* 如果给定的值为null,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static String toStr(Object value, String defaultValue) {
if (null == value) {
return defaultValue;
}
if (value instanceof String) {
return (String) value;
}
return value.toString();
}
/**
* 转换为字符串<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static String toStr(Object value) {
return toStr(value, null);
}
/**
* 转换为字符<br>
* 如果给定的值为null,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static Character toChar(Object value, Character defaultValue) {
if (null == value) {
return defaultValue;
}
if (value instanceof Character) {
return (Character) value;
}
final String valueStr = toStr(value, null);
return com.mybatisflex.flex.utils.StringUtils.isEmpty(valueStr) ? defaultValue : valueStr.charAt(0);
}
/**
* 转换为字符<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static Character toChar(Object value) {
return toChar(value, null);
}
/**
* 转换为byte<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static Byte toByte(Object value, Byte defaultValue) {
if (value == null) {
return defaultValue;
}
if (value instanceof Byte) {
return (Byte) value;
}
if (value instanceof Number) {
return ((Number) value).byteValue();
}
final String valueStr = toStr(value, null);
if (com.mybatisflex.flex.utils.StringUtils.isEmpty(valueStr)) {
return defaultValue;
}
try {
return Byte.parseByte(valueStr);
} catch (Exception e) {
return defaultValue;
}
}
/**
* 转换为byte<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static Byte toByte(Object value) {
return toByte(value, null);
}
/**
* 转换为Short<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static Short toShort(Object value, Short defaultValue) {
if (value == null) {
return defaultValue;
}
if (value instanceof Short) {
return (Short) value;
}
if (value instanceof Number) {
return ((Number) value).shortValue();
}
final String valueStr = toStr(value, null);
if (com.mybatisflex.flex.utils.StringUtils.isEmpty(valueStr)) {
return defaultValue;
}
try {
return Short.parseShort(valueStr.trim());
} catch (Exception e) {
return defaultValue;
}
}
/**
* 转换为Short<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static Short toShort(Object value) {
return toShort(value, null);
}
/**
* 转换为Number<br>
* 如果给定的值为空,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static Number toNumber(Object value, Number defaultValue) {
if (value == null) {
return defaultValue;
}
if (value instanceof Number) {
return (Number) value;
}
final String valueStr = toStr(value, null);
if (com.mybatisflex.flex.utils.StringUtils.isEmpty(valueStr)) {
return defaultValue;
}
try {
return NumberFormat.getInstance().parse(valueStr);
} catch (Exception e) {
return defaultValue;
}
}
/**
* 转换为Number<br>
* 如果给定的值为空,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static Number toNumber(Object value) {
return toNumber(value, null);
}
/**
* 转换为int<br>
* 如果给定的值为空,或者转换失败,返回默认值<br>
* 转换失败不会报错
*
* @param value 被转换的值
* @param defaultValue 转换错误时的默认值
* @return 结果
*/
public static Integer toInt(Object value, Integer defaultValue) {
if (value == null) {
return defaultValue;
}
if (value instanceof Integer) {
return (Integer) value;
}
if (value instanceof Number) {
return ((Number) value).intValue();
}
final String valueStr = toStr(value, null);
if (com.mybatisflex.flex.utils.StringUtils.isEmpty(valueStr)) {
return defaultValue;
}
try {
return Integer.parseInt(valueStr.trim());
} catch (Exception e) {
return defaultValue;
}
}
/**
* 转换为int<br>
* 如果给定的值为<code>null</code>,或者转换失败,返回默认值<code>null</code><br>
* 转换失败不会报错
*
* @param value 被转换的值
* @return 结果
*/
public static Integer toInt(Object value) {
return toInt(value, null);
}
/**
* 转换为Integer数组<br>
*
* @param str 被转换的值
* @return 结果
*/
public static Integer[] toIntArray(String str) {
return toIntArray(",", str);
}
/**
* 转换为Long数组<br>
*
* @param str 被转换的值
* @return 结果
*/
public static Long[] toLongArray(String str) {
return toLongArray(",", str);
}
/**
* 转换为Integer数组<br>
*
* @param split 分隔符
* @param split 被转换的值
* @return 结果
*/
public static Integer[] toIntArray(String split, String str) {
if (com.mybatisflex.flex.utils.StringUtils.isEmpty(str)) {
return new Integer[]{};
}
String[] arr = str.split(split);
final Integer[] ints = new Integer[arr.length];
for (int i = 0; i < arr.length; i++) {
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