import java.math.BigDecimal; import java.math.BigInteger; public class MathUtils { public static BigDecimal getBigDecimal( Object value ) { BigDecimal ret = null; if( value != null ) { if( value instanceof BigDecimal ) { ret = (BigDecimal) value; } else if( value instanceof String ) { ret = new BigDecimal( (String) value ); } else if( value instanceof BigInteger ) { ret = new BigDecimal( (BigInteger) value ); } else if( value instanceof Number ) { ret = new BigDecimal( ((Number)value).doubleValue() ); } else { throw new ClassCastException("Not possible to coerce ["+value+"] from class "+value.getClass()+" into a BigDecimal."); } } return ret; } }
参考https://www.cnblogs.com/mr-wuxiansheng/p/7465988.html