Java 类型转换工具类

迷南。 2022-06-07 04:48 157阅读 0赞

public class TypeCastHelper {
        private static final String DEFAULT_STRING = "";
        private static final int DEFAULT_INT = 0;
        private static final long DEFAULT_LONG = 0L;
        private static final double DEFAULT_DOUBLE = 0.0D;
        private static final float DEFAULT_FLOAT = 0.0F;
        private static final boolean DEFAULT_BOOLEAN = Boolean.FALSE;
    
        public static String toString(Object obj, String defaultValue) {
            return obj != null ? obj.toString() : defaultValue;
        }
    
        public static String toString(Object obj) {
            return toString(obj, DEFAULT_STRING);
        }
    
        public static String toString(Integer intValue, String defaultValue) {
            return intValue != null ? String.valueOf(intValue) : defaultValue;
        }
    
        public static String toString(Integer intValue) {
            return toString(intValue, DEFAULT_STRING);
        }
    
        public static String toString(Long longValue, String defaultValue) {
            return longValue != null ? String.valueOf(longValue) : defaultValue;
        }
    
        public static String toString(Long longValue) {
            return toString(longValue, DEFAULT_STRING);
        }
    
        public static String toString(Boolean booleanValue, String defaultValue) {
            return booleanValue != null ? String.valueOf(booleanValue) : defaultValue;
        }
    
        public static String toString(Boolean booleanValue) {
            return toString(booleanValue, DEFAULT_STRING);
        }
    
        public static String toString(Double doubleValue, String defaultValue) {
            return null != doubleValue ? String.valueOf(doubleValue) : defaultValue;
        }
    
        public static String toString(Double doubleValue) {
            return toString(doubleValue, DEFAULT_STRING);
        }
    
        public static String toString(Float floatValue, String defaultValue) {
            return null != floatValue ? String.valueOf(floatValue) : defaultValue;
        }
    
        public static String toString(Float floatValue) {
            return toString(floatValue, DEFAULT_STRING);
        }
    
        public static int toInt(Object objectValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != objectValue) {
                try {
                    intValue = Integer.parseInt(toString(objectValue, toString(defaultValue)));
                } catch (NumberFormatException numberFormatException) {
                    System.err.println(numberFormatException.getMessage());
                }
            }
            return intValue;
        }
    
        public static int toInt(Object objectValue) {
            return toInt(objectValue, DEFAULT_INT);
        }
    
        public static int toInt(String stringValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != stringValue && stringValue.length() > 0) {
                try {
                    intValue = Integer.parseInt(stringValue);
                } catch (NumberFormatException numberFormatException) {
                    System.err.println(numberFormatException.getMessage());
                }
            }
            return intValue;
        }
    
        public static int toInt(Long longValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != longValue) {
                intValue = longValue.intValue();
            }
            return intValue;
        }
    
        public static int toInt(Long longValue) {
            return toInt(longValue, DEFAULT_INT);
        }
    
        public static int toInt(Boolean booleanValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != booleanValue) {
                intValue = booleanValue ? 1 : 0;
            }
            return intValue;
        }
    
        public static int toInt(Boolean booleanValue) {
            return toInt(booleanValue, DEFAULT_INT);
        }
    
        public static int toInt(Double doubleValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != doubleValue) {
                intValue = doubleValue.intValue();
            }
            return intValue;
        }
    
        public static int toInt(Double doubleValue) {
            return toInt(doubleValue, DEFAULT_INT);
        }
    
        public static int toInt(Float floatValue, int defaultValue) {
            int intValue = defaultValue;
            if (null != floatValue) {
                intValue = floatValue.intValue();
            }
            return intValue;
        }
    
        public static int toInt(Float floatValue) {
            return toInt(floatValue, DEFAULT_INT);
        }
    
        public static long toLong(Object objectValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != objectValue) {
                try {
                    longValue = Long.parseLong(toString(objectValue, toString(defaultValue)));
                } catch (NumberFormatException numberFormatException) {
                    System.err.println(numberFormatException.getMessage());
                }
            }
            return longValue;
        }
    
        public static long toLong(Object objectValue) {
            return toLong(objectValue, DEFAULT_LONG);
        }
    
        public static long toLong(String stringValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != stringValue && stringValue.length() > 0) {
                longValue = Long.parseLong(stringValue);
            }
            return longValue;
        }
    
        public static long toLong(String stringValue) {
            return toLong(stringValue, DEFAULT_LONG);
        }
    
        public static long toLong(Integer intValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != intValue) {
                longValue = intValue.longValue();
            }
            return longValue;
        }
    
        public static long toLong(Integer intValue) {
            return toLong(intValue, DEFAULT_LONG);
        }
    
        public static long toLong(Boolean booleanValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != booleanValue) {
                longValue = booleanValue ? 1L : 0L;
            }
            return longValue;
        }
    
        public static long toLong(Boolean booleanValue) {
            return toLong(booleanValue, DEFAULT_LONG);
        }
    
        public static long toLong(Double doubleValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != doubleValue) {
                longValue = doubleValue.longValue();
            }
            return longValue;
        }
    
        public static long toLong(Double doubleValue) {
            return toLong(doubleValue, DEFAULT_LONG);
        }
    
        public static long toLong(Float floatValue, long defaultValue) {
            long longValue = defaultValue;
            if (null != floatValue) {
                longValue = floatValue.longValue();
            }
            return longValue;
        }
    
        public static long toLong(Float floatValue) {
            return toLong(floatValue, DEFAULT_LONG);
        }
    
        public static boolean toBoolean(Object objectValue, boolean defaultValue) {
            boolean booleanValue = defaultValue;
            if (null != objectValue) {
                booleanValue = Boolean.valueOf(toString(objectValue, toString(defaultValue)));
            }
            return booleanValue;
        }
    
    
        public static boolean toBoolean(Object objectValue) {
            return toBoolean(objectValue, DEFAULT_BOOLEAN);
        }
    
        public static boolean toBoolean(String stringValue, boolean defaultValue) {
            boolean booleanValue = defaultValue;
            if (null != stringValue && stringValue.length() > 0) {
                booleanValue = Boolean.valueOf(stringValue);
            }
            return booleanValue;
        }
    
        public static boolean toBoolean(String stringValue) {
            return toBoolean(stringValue, DEFAULT_BOOLEAN);
        }
    
        public static boolean toBoolean(Integer intValue, boolean defaultValue) {
            boolean booleanValue = defaultValue;
            if (null != intValue) {
                booleanValue = intValue == 1;
            }
            return booleanValue;
        }
    
        public static boolean toBoolean(Integer intValue) {
            return toBoolean(intValue, DEFAULT_BOOLEAN);
        }
    
        public static boolean toBoolean(Long longValue, boolean defaultValue) {
            boolean booleanValue = defaultValue;
            if (null != longValue) {
                booleanValue = longValue.longValue() == 1L;
            }
            return booleanValue;
        }
    
        public static boolean toBoolean(Long longValue) {
            return toBoolean(longValue, DEFAULT_BOOLEAN);
        }
    
        public static float toFloat(Object objectValue, float defaultValue) {
            float floatValue = defaultValue;
            if (null != objectValue) {
                try {
                    floatValue = Float.valueOf(toString(objectValue, toString(defaultValue)));
                } catch (NumberFormatException numberFormatException) {
                    System.err.println(numberFormatException);
                }
            }
            return floatValue;
        }
    
        public static float toFloat(Object objectValue) {
            return toFloat(objectValue, DEFAULT_FLOAT);
        }
    
        public static float toFloat(String stringValue, float defaultValue) {
            float floatValue = defaultValue;
            if (null != stringValue && stringValue.length() > 0) {
                try {
                    floatValue = Float.valueOf(stringValue);
                } catch (NumberFormatException numberFormatException) {
                    System.err.println(numberFormatException.getMessage());
                }
            }
            return floatValue;
        }
    
        public static float toFloat(String stringValue) {
            return toFloat(stringValue, DEFAULT_FLOAT);
        }
    
        public static float toFloat(Integer intValue, float defaultValue) {
            float floatValue = defaultValue;
            if (null != intValue) {
                floatValue = intValue.floatValue();
            }
            return floatValue;
        }
    
        public static float toFloat(Integer intValue) {
            return toFloat(intValue, DEFAULT_FLOAT);
        }
    
        public static float toFloat(Long longValue, float defaultValue) {
            float floatValue = defaultValue;
            if (null != longValue) {
                floatValue = longValue.floatValue();
            }
            return floatValue;
        }
    
        public static float toFloat(Long longValue) {
            return toFloat(longValue, DEFAULT_FLOAT);
        }
    
        public static float toFloat(Double doubleValue, float defaultValue) {
            float floatValue = defaultValue;
            if (null != doubleValue) {
                floatValue = doubleValue.floatValue();
            }
            return floatValue;
        }
    
        public static float toFloat(Double doubleValue) {
            return toFloat(doubleValue, DEFAULT_FLOAT);
        }
    
        public static double toDouble(Object objectValue, double defaultValue) {
            double doubleValue = defaultValue;
            if (null != objectValue) {
                doubleValue = Double.parseDouble(toString(objectValue, toString(defaultValue)));
            }
            return doubleValue;
        }
    
        public static double toDouble(Object objectValue) {
            return toDouble(objectValue, DEFAULT_DOUBLE);
        }
    
        public static double toDouble(String stringValue, double defaultValue) {
            double doubleValue = defaultValue;
            if (null != stringValue && stringValue.length() > 0) {
                doubleValue = Double.parseDouble(stringValue);
            }
            return doubleValue;
        }
    
        public static double toDouble(String stringValue) {
            return toDouble(stringValue, DEFAULT_DOUBLE);
        }
    
        public static double toDouble(Integer intValue, double defaultValue) {
            double doubleValue = defaultValue;
            if (null != intValue) {
                doubleValue = intValue.doubleValue();
            }
            return doubleValue;
        }
    
        public static double toDouble(Integer intValue) {
            return toDouble(intValue, DEFAULT_DOUBLE);
        }
    
        public static double toDouble(Long longValue, double defaultValue) {
            double doubleValue = defaultValue;
            if (null != longValue) {
                doubleValue = longValue.doubleValue();
            }
            return doubleValue;
        }
    
        public static double toDouble(Long longValue) {
            return toDouble(longValue, DEFAULT_DOUBLE);
        }
    
        public static double toDouble(Float floatValue, double defaultValue) {
            double doubleValue = defaultValue;
            if (null != floatValue) {
                doubleValue = floatValue.doubleValue();
            }
            return doubleValue;
        }
    
        public static double toDouble(Float floatValue) {
            return toDouble(floatValue, DEFAULT_DOUBLE);
        }
    }