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
1
/** *//**
2
* 大写金额转换Scriptlet类
3 *
4 * @author Spark (Email: spark.unt@gmail.com)
5
*/
6public class TransChineseMoneyScriptlet extends JRDefaultScriptlet 
{
7
/**//*
8 * 默认构造方法
9
*/
10 public TransChineseMoneyScriptlet() {
11
12 }
13
14 /** *//**
15 * 获得金额的汉字大写格式 <br>
16 * @param money 小写金额字符串
17 * @return 大写的汉字金额
18 */
19 public static String getChineseMoney(String money) {
20 String text = transChineseMoney1(money) + transChineseMoney2(money);
21 Pattern p = Pattern.compile("零分", Pattern.CASE_INSENSITIVE);
22 Matcher m = p.matcher(text);
23 text = m.replaceAll("");
24 return text;
25 }
26
27 /** *//**
28 * 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>
29 * <br>
30 * 其他描述：输入数字超过接受范围时拒绝转换并退出。<br>
31 * @param 传递参数字符串S 参数描述
32 * @return 返回转换后的字符串
33 */
34 public static String transChineseMoney1(String s) {
35 String ss = s;
36 String tmpnewchar = "";
37 String[] part = ss.split("\\.");
38
39 if (part[0].length() > 10) {
40 // 超出可转换位数
41 return "";
42 }
43 for (int i = 0; i < part[0].length(); i++) {
44 char perchar = part[0].charAt(i);
45 if (perchar == '0')
46 tmpnewchar = tmpnewchar + "零";
47 if (perchar == '1')
48 tmpnewchar = tmpnewchar + "壹";
49 if (perchar == '2')
50 tmpnewchar = tmpnewchar + "贰";
51 if (perchar == '3')
52 tmpnewchar = tmpnewchar + "叁";
53 if (perchar == '4')
54 tmpnewchar = tmpnewchar + "肆";
55 if (perchar == '5')
56 tmpnewchar = tmpnewchar + "伍";
57 if (perchar == '6')
58 tmpnewchar = tmpnewchar + "陆";
59 if (perchar == '7')
60 tmpnewchar = tmpnewchar + "柒";
61 if (perchar == '8')
62 tmpnewchar = tmpnewchar + "捌";
63 if (perchar == '9')
64 tmpnewchar = tmpnewchar + "玖";
65
66 int j = part[0].length() - i - 1;
67 if (j == 0)
68 tmpnewchar = tmpnewchar + "圆";
69 if (j == 1 && perchar != 0)
70 tmpnewchar = tmpnewchar + "拾";
71 if (j == 2 && perchar != 0)
72 tmpnewchar = tmpnewchar + "佰";
73 if (j == 3 && perchar != 0)
74 tmpnewchar = tmpnewchar + "仟";
75 if (j == 4 && perchar != 0)
76 tmpnewchar = tmpnewchar + "万";
77 if (j == 5 && perchar != 0)
78 tmpnewchar = tmpnewchar + "拾";
79 if (j == 6 && perchar != 0)
80 tmpnewchar = tmpnewchar + "佰";
81 if (j == 7 && perchar != 0)
82 tmpnewchar = tmpnewchar + "仟";
83 if (j == 8 && perchar != 0)
84 tmpnewchar = tmpnewchar + "亿";
85 if (j == 9 && perchar != 0)
86 tmpnewchar = tmpnewchar + "拾";
87 }
88 return tmpnewchar;
89 }
90
91 /** *//**
92 * 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>
93 * <br>
94 * 其他描述：小数部分超过两位时系统自动截断。<br>
95 *
96 * @param 传递参数字符串
97 *
98 * @return 返回转换后的字符串
99 */
100 public static String transChineseMoney2(String s) {
101 String ss = s;
102 String tmpnewchar1 = "";
103 String[] part = ss.split("\\.");
104
105 if (ss.indexOf(".") != -1) {
106 if (part[1].length() > 2) {
107 // MessageDialog.openInformation(null,"提示","小数点之后只能保留两位,系统将自动截段");
108 part[1] = part[1].substring(0, 2);
109 }
110 for (int i = 0; i < part[1].length(); i++) {
111 char perchar = part[1].charAt(i);
112// System.out.println(perchar);
113 if (perchar == '0')
114 tmpnewchar1 = tmpnewchar1 + "零";
115 if (perchar == '1')
116 tmpnewchar1 = tmpnewchar1 + "壹";
117 if (perchar == '2')
118 tmpnewchar1 = tmpnewchar1 + "贰";
119 if (perchar == '3')
120 tmpnewchar1 = tmpnewchar1 + "叁";
121 if (perchar == '4')
122 tmpnewchar1 = tmpnewchar1 + "肆";
123 if (perchar == '5')
124 tmpnewchar1 = tmpnewchar1 + "伍";
125 if (perchar == '6')
126 tmpnewchar1 = tmpnewchar1 + "陆";
127 if (perchar == '7')
128 tmpnewchar1 = tmpnewchar1 + "柒";
129 if (perchar == '8')
130 tmpnewchar1 = tmpnewchar1 + "捌";
131 if (perchar == '9')
132 tmpnewchar1 = tmpnewchar1 + "玖";
133
134 if (i == 0 && perchar != 0)
135 tmpnewchar1 = tmpnewchar1 + "角";
136 if (i == 1 && perchar != 0)
137 tmpnewchar1 = tmpnewchar1 + "分";
138 }
139 }
140 return tmpnewchar1;
141 }
142
143
144/** *//** Begin EVENT_AFTER_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
145public void afterColumnInit() throws JRScriptletException
146{
147 super.beforeColumnInit();
148}
149/** *//** End EVENT_AFTER_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
150/** *//** Begin EVENT_AFTER_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
151public void afterDetailEval() throws JRScriptletException
152{
153 Double sumTaxMoney = getVariableValue("sumTaxMoney") == null ? new Double(0.0)
154 : (java.lang.Double) getVariableValue("sumTaxMoney");
155
156// System.out.println("sumTaxMoney = " + sumTaxMoney);
157 String cnMoney = getChineseMoney(sumTaxMoney+"");
158// System.out.println("cnMoney = " + cnMoney);
159 this.setVariableValue("cnMoney", cnMoney);
160 super.afterDetailEval();
161}
162/** *//** End EVENT_AFTER_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
163/** *//** Begin EVENT_AFTER_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
164public void afterGroupInit(String groupName) throws JRScriptletException
165{
166 super.afterGroupInit(groupName);
167}
168/** *//** End EVENT_AFTER_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
169/** *//** Begin EVENT_AFTER_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
170public void afterPageInit() throws JRScriptletException
171{
172 super.afterPageInit();
173}
174/** *//** End EVENT_AFTER_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
175/** *//** Begin EVENT_AFTER_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
176public void afterReportInit() throws JRScriptletException
177{
178
179
180
181}
182/** *//** End EVENT_AFTER_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
183/** *//** Begin EVENT_BEFORE_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
184public void beforeColumnInit() throws JRScriptletException
185{
186
187}
188/** *//** End EVENT_BEFORE_COLUMN_INIT This line is generated by iReport. Don't modify or move please! */
189/** *//** Begin EVENT_BEFORE_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
190public void beforeDetailEval() throws JRScriptletException
191{
192
193}
194/** *//** end EVENT_BEFORE_DETAIL_EVAL Please don't touch or move this comment*/
195
196/** *//** End EVENT_BEFORE_DETAIL_EVAL This line is generated by iReport. Don't modify or move please! */
197/** *//** Begin EVENT_BEFORE_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
198public void beforeGroupInit(String groupName) throws JRScriptletException
199{
200
201}
202/** *//** End EVENT_BEFORE_GROUP_INIT This line is generated by iReport. Don't modify or move please! */
203/** *//** Begin EVENT_BEFORE_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
204public void beforePageInit() throws JRScriptletException
205{
206
207}
208/** *//** End EVENT_BEFORE_PAGE_INIT This line is generated by iReport. Don't modify or move please! */
209/** *//** Begin EVENT_BEFORE_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
210public void beforeReportInit() throws JRScriptletException
211{
212
213}
214
215/** *//** End EVENT_BEFORE_REPORT_INIT This line is generated by iReport. Don't modify or move please! */
216
217}
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
用红框框起来的部分就是我们想要的结果,是不是很酷呀?
差点忘记了关键的啦,要在你的报表XML中jasperReport节点中增加以下属性值scriptletClass="TransChineseMoneyScriptlet" ,来启用该scriptlet