package com.utils;import java.lang.reflect.Field;import java.math.BigDecimal;import java.sql.Timestamp;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Map;import java.util.Set;public class CommonUtils {    /**     * 将map中的值赋值到po中     *      * @param map     *            前台传过来的值封装成的map对象     * @param obj     *            po实体类     */    public static void getLatestObjectByMap(Map<String, ?> map, Object obj) {        Set<String> keys = map.keySet();        for (String key : keys) {            Object value = map.get(key);            Class<? extends Object> clazz = obj.getClass();            try {                Field field = clazz.getDeclaredField(key);                field.setAccessible(true);                field.set(obj, getValue(key, field.getType().getName(), value));            } catch (NoSuchFieldException e) {                e.printStackTrace();            } catch (IllegalArgumentException e) {                e.printStackTrace();            } catch (IllegalAccessException e) {                e.printStackTrace();            }        }    }    /**     * 将fieldValue转为dataType类型的值     *      * @param key     * @param dataType     * @param fieldValue     * @return     */    private static Object getValue(String key, String dataType,            Object fieldValue) {        String errorMessage = key + "为[" + dataType + "]而设置的值为["                + fieldValue.getClass().getName() + "]";        String numberFormatErrorMessage = key + "  [" + fieldValue + "]转换为["                + dataType + "]出错";        System.out.println(dataType);        if ("java.sql.Date".equals(dataType)) {            if (fieldValue instanceof java.sql.Date) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                String formatString = "yyyy-MM-dd";                try {                    SimpleDateFormat sdf = new SimpleDateFormat(formatString);                    Date date = sdf.parse((String) fieldValue);                    return new java.sql.Date(date.getTime());                } catch (Exception e) {                    throw new RuntimeException(key + "[" + fieldValue                            + "]格式错误,正确格式为[" + formatString + "]");                }            } else {                throw new RuntimeException(errorMessage);            }        } else if ("java.util.Date".equals(dataType)) {            if (fieldValue instanceof java.util.Date) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                String formatString = "yyyy-MM-dd";                try {                    SimpleDateFormat sdf = new SimpleDateFormat(formatString);                    java.util.Date date = sdf.parse((String) fieldValue);                    return date;                } catch (Exception e) {                    throw new RuntimeException(key + "[" + fieldValue                            + "]格式错误,正确格式为[" + formatString + "]");                }            } else {                throw new RuntimeException(errorMessage);            }        } else if ("java.sql.Timestamp".equals(dataType)) {            if (fieldValue instanceof java.sql.Timestamp) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                String formatString = "yyyy-MM-dd HH:mm:ss";                try {                    SimpleDateFormat sdf = new SimpleDateFormat(formatString);                    Date date = sdf.parse((String) fieldValue);                    return new Timestamp(date.getTime());                } catch (Exception e) {                    throw new RuntimeException(key + "[" + fieldValue                            + "]格式错误,正确格式为[" + formatString + "]");                }            } else {                throw new RuntimeException(errorMessage);            }        } else if ("java.lang.String".equals(dataType)) {            if (fieldValue instanceof java.lang.String) {                return fieldValue;            } else {                throw new RuntimeException(errorMessage);            }        } else if ("java.math.BigDecimal".equals(dataType)) {            if (fieldValue instanceof java.math.BigDecimal) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new BigDecimal(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Integer".equals(dataType))                || ("int".equals(dataType))) {            if (fieldValue instanceof java.lang.Integer) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Integer(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Long".equals(dataType))                || ("long".equals(dataType))) {            if (fieldValue instanceof java.lang.Long) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Long(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Short".equals(dataType))                || ("short".equals(dataType))) {            if (fieldValue instanceof java.lang.Short) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Short(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Byte".equals(dataType))                || ("byte".equals(dataType))) {            if (fieldValue instanceof java.lang.Byte) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Byte(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Float".equals(dataType))                || ("float".equals(dataType))) {            if (fieldValue instanceof java.lang.Float) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Float(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Double".equals(dataType))                || ("double".equals(dataType))) {            if (fieldValue instanceof java.lang.Double) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                try {                    return new Double(String.valueOf(fieldValue));                } catch (Exception e) {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Boolean".equals(dataType))                || ("boolean".equals(dataType))) {            if (fieldValue instanceof java.lang.Boolean) {                return fieldValue;            } else if (fieldValue instanceof java.lang.String) {                if ("true".equals(fieldValue)) {                    return new Boolean(true);                } else if ("false".equals(fieldValue)) {                    return new Boolean(false);                } else {                    throw new RuntimeException(numberFormatErrorMessage);                }            } else {                throw new RuntimeException(errorMessage);            }        } else if (("java.lang.Character".equals(dataType))                || ("char".equals(dataType))) {            {                return new Character(String.valueOf(fieldValue).charAt(0));            }        }        return fieldValue;    }}