FormatUtils.java

package com.topsun.posclient.common.ui.utils;

import java.math.BigDecimal;
import java.util.regex.Pattern;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Control;

public class FormatUtils {

	public static boolean checkIpFormat(Control control, String value,
			String errorMessage) {
		String reg = "([1-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}";
		if (value.matches(reg)) {
			return true;
		} else {
			MessageDialog.openError(control.getShell(), "错误", errorMessage);
			return false;
		}
	}

	/**
	 * 判断0-1之间的数值，保留小数点2位
	 * 
	 * @param control
	 * @param value
	 * @param errorMessage
	 * @return
	 */
	public static boolean checkNeatnessFormat(Control control, String value,
			String errorMessage) {
		// BigDecimal neatness = BigDecimal.valueOf(Long.valueOf(value));

		String reg = "0|1|1.0{1,3}|0.\\d{1,3}";
		if (value.matches(reg)) {
			return true;
		} else {
			MessageDialog.openError(control.getShell(), "错误", errorMessage);
			return false;
		}
	}

	/**
	 * 判断大于0 的正整数
	 * 
	 * @param control
	 * @param value
	 * @param errorMessage
	 * @return
	 */
	public static boolean chenckNumFormat(Control control, String value,
			String errorMessage) {
		if (isInteger(value) || isDouble(value)) {
			return true;
		} else {
			MessageDialog.openError(control.getShell(), "错误", errorMessage);
			control.forceFocus();
			return false;
		}
	}

	/*
	 * 判断是否为浮点数，包括double和float
	 * 
	 * @param str 传入的字符串
	 * 
	 * @return 是浮点数返回true,否则返回false
	 */
	public static boolean isDouble(String str) {
		Pattern pattern = Pattern.compile("^[-\\+]?[.\\d]*$");
		return pattern.matcher(str).matches();
	}

	/*
	 * 判断是否为整数
	 * 
	 * @param str 传入的字符串
	 * 
	 * @return 是整数返回true,否则返回false
	 */
	public static boolean isInteger(String str) {
		Pattern pattern = Pattern.compile("^[-\\+]?[\\d]*$");
		return pattern.matcher(str).matches();
	}
	
	
	public static boolean oldGoldcheckWeightG(Control control, String value,
			String errorMessage) {
		String reg = "^\\d+(\\.\\d{0,3})?$";
		if (value.matches(reg)) {
			return true;
		} else {
			MessageDialog.openError(control.getShell(), "错误", errorMessage);
			return false;
		}
	}

	public static boolean checkWeightG(Control control, String value,
			String errorMessage) {
		String reg = "^\\d+(\\.\\d+)?$";
		if (value.matches(reg)) {
			return true;
		} else {
			MessageDialog.openError(control.getShell(), "错误", errorMessage);
			return false;
		}
	}

	public static void main(String[] args) {

		// String reg = "^\\d+(\\.\\d+)?$";
		//
		// String[] ss = new String[]{"1","0","0.999","-1","2","-0.9"};
		// for (String string : ss) {
		// System.out.println(string + " " +string.matches(reg));
		// }
//		BigDecimal bdtest = new BigDecimal(4545.159);
//		System.out.println(FormatUtils.convetC(bdtest));
	}
}