在JasperReport报表中加入大写金额

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我们在制作单证或报表时，客户经常要我们把最后的合计数转写中文大写金额。这个需求很合理，但感觉并不容易实现，如何在JasperReport中加入大写金额的实现呢？提供一种实现的方法给大家参考。

实现思路：
在报表执行过程中使用scirptlet将存放着数字金额的变量读出转换成大写金额字符串后放入大写金额变量中。报表即可象显示普通字符变量一样显示大写金额。

TransChineseMoneyScriptlet.java代码

/**
 * 大写金额转换Scriptlet类
 *
 * @author Spark (Email: spark.unt@gmail.com) 
 */
public class TransChineseMoneyScriptlet extends JRDefaultScriptlet {
	/*
	 * 默认构造方法
	 */
	public TransChineseMoneyScriptlet() {
	
	}

	/**
	 * 获得金额的汉字大写格式 <br>
	 * @param money 小写金额字符串
	 * @return 大写的汉字金额
	 */
	public static String getChineseMoney(String money) {
		String text = transChineseMoney1(money) + transChineseMoney2(money);
		Pattern p = Pattern.compile("零分", Pattern.CASE_INSENSITIVE);
		Matcher m = p.matcher(text);
		text = m.replaceAll("");
		return text;
	}

	/**
	 * 截得输入金额的整数部分，并将其转换成中文大写的格式 <br>
	 * <br>
	 * 其他描述：输入数字超过接受范围时拒绝转换并退出。<br>
	 * @param 传递参数字符串S 参数描述
	 * @return 返回转换后的字符串
	 */
	public static String transChineseMoney1(String s) {
		String ss = s;
		String tmpnewchar = "";
		String[] part = ss.split("\\.");

		if (part[0].length() > 10) {
			// 超出可转换位数
			return "";
		}
		for (int i = 0; i < part[0].length(); i++) {
			char perchar = part[0].charAt(i);
			if (perchar == '0')
				tmpnewchar = tmpnewchar + "零";
			if (perchar == '1')
				tmpnewchar = tmpnewchar + "壹";
			if (perchar == '2')
				tmpnewchar = tmpnewchar + "贰";
			if (perchar == '3')
				tmpnewchar = tmpnewchar + "叁";
			if (perchar == '4')
				tmpnewchar = tmpnewchar + "肆";
			if (perchar == '5')
				tmpnewchar = tmpnewchar + "伍";
			if (perchar == '6')
				tmpnewchar = tmpnewchar + "陆";
			if (perchar == '7')
				tmpnewchar = tmpnewchar + "柒";
			if (perchar == '8')
				tmpnewchar = tmpnewchar + "捌";
			if (perchar == '9')
				tmpnewchar = tmpnewchar + "玖";

			int j = part[0].length() - i - 1;
			if (j == 0)
				tmpnewchar = tmpnewchar + "圆";
			if (j == 1 && perchar != 0)
				tmpnewchar = tmpnewchar + "拾";
			if (j == 2 && perchar != 0)
				tmpnewchar = tmpnewchar + "佰";
			if (j == 3 && perchar != 0)
				tmpnewchar = tmpnewchar + "仟";
			if (j == 4 && perchar != 0)
				tmpnewchar = tmpnewchar + "万";
			if (j == 5 && perchar != 0)
				tmpnewchar = tmpnewchar + "拾";
			if (j == 6 && perchar != 0)
				tmpnewchar = tmpnewchar + "佰";
			if (j == 7 && perchar != 0)
				tmpnewchar = tmpnewchar + "仟";
			if (j == 8 && perchar != 0)
				tmpnewchar = tmpnewchar + "亿";
			if (j == 9 && perchar != 0)
				tmpnewchar = tmpnewchar + "拾";
		}
		return tmpnewchar;
	}

	/**
	 * 截得输入金额的小数部分，并将其转换成中文大写的格式 <br>
	 * <br>
	 * 其他描述：小数部分超过两位时系统自动截断。<br>
	 * 
	 * @param 传递参数字符串
	 * 
	 * @return 返回转换后的字符串
	 */
	public static String transChineseMoney2(String s) {
		String ss = s;
		String tmpnewchar1 = "";
		String[] part = ss.split("\\.");

		if (ss.indexOf(".") != -1) {
			if (part[1].length() > 2) {
				// MessageDialog.openInformation(null,"提示","小数点之后只能保留两位,系统将自动截段");
				part[1] = part[1].substring(0, 2);
			}
			for (int i = 0; i < part[1].length(); i++) {
				char perchar = part[1].charAt(i);
//				System.out.println(perchar);
				if (perchar == '0')
					tmpnewchar1 = tmpnewchar1 + "零";
				if (perchar == '1')
					tmpnewchar1 = tmpnewchar1 + "壹";
				if (perchar == '2')
					tmpnewchar1 = tmpnewchar1 + "贰";
				if (perchar == '3')
					tmpnewchar1 = tmpnewchar1 + "叁";
				if (perchar == '4')
					tmpnewchar1 = tmpnewchar1 + "肆";
				if (perchar == '5')
					tmpnewchar1 = tmpnewchar1 + "伍";
				if (perchar == '6')
					tmpnewchar1 = tmpnewchar1 + "陆";
				if (perchar == '7')
					tmpnewchar1 = tmpnewchar1 + "柒";
				if (perchar == '8')
					tmpnewchar1 = tmpnewchar1 + "捌";
				if (perchar == '9')
					tmpnewchar1 = tmpnewchar1 + "玖";

				if (i == 0 && perchar != 0)
					tmpnewchar1 = tmpnewchar1 + "角";
				if (i == 1 && perchar != 0)
					tmpnewchar1 = tmpnewchar1 + "分";
			}
		}
		return tmpnewchar1;
	}


/** Begin EVENT_AFTER_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
public void afterColumnInit() throws JRScriptletException
{
	super.beforeColumnInit();
}
/** End EVENT_AFTER_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_AFTER_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
public void afterDetailEval() throws JRScriptletException
{
	Double sumTaxMoney = getVariableValue("sumTaxMoney") == null ? new Double(0.0)
	: (java.lang.Double) getVariableValue("sumTaxMoney");

//	System.out.println("sumTaxMoney = " + sumTaxMoney);
	String cnMoney = getChineseMoney(sumTaxMoney+"");
//	System.out.println("cnMoney = " + cnMoney);
	this.setVariableValue("cnMoney", cnMoney);
	super.afterDetailEval();
}
/** End EVENT_AFTER_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_AFTER_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
public void afterGroupInit(String groupName) throws JRScriptletException
{
	super.afterGroupInit(groupName);
}
/** End EVENT_AFTER_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_AFTER_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
public void afterPageInit() throws JRScriptletException
{
	super.afterPageInit();
}
/** End EVENT_AFTER_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_AFTER_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
public void afterReportInit() throws JRScriptletException
{
	
	
	
}
/** End EVENT_AFTER_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_BEFORE_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
public void beforeColumnInit() throws JRScriptletException
{
		
}
/** End EVENT_BEFORE_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_BEFORE_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
public void beforeDetailEval() throws JRScriptletException
{
	
}
/** end EVENT_BEFORE_DETAIL_EVAL Please don't touch or move this comment*/

/** End EVENT_BEFORE_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_BEFORE_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
public void beforeGroupInit(String groupName) throws JRScriptletException
{
	
}
/** End EVENT_BEFORE_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_BEFORE_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
public void beforePageInit() throws JRScriptletException
{
	
}
/** End EVENT_BEFORE_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
/** Begin EVENT_BEFORE_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
public void beforeReportInit() throws JRScriptletException
{
	
}

/** End EVENT_BEFORE_REPORT_INIT This line is generated by iReport. Don't modify or move please! */

}

后面几个方法都是iReport所需的几个方法，不要删除掉它。

然后在报表中将定义两个报表变量:
sumTaxMoney 用于存放小写金额,它是Double型,并在iReport中写上计算公式或script
cnMoney 用于接收本scriptlet传回的大写金额变量,在iReport中无需赋值,直接放到需显示的地方即可