多个润乾报表，导出到一个excel中的不同sheet页中

梦里梦外; 2022-05-16 02:06 284阅读 0赞

润乾报表作为报表编辑工具使用起来十分的简单方便，只需要简单的属性设置便可以实现导出、打印等功能（具体参见润乾开发应用文档），令人很郁闷的是润乾的导出只是单表的导出。

最近就有这么一个需求：有很多.raq报表文件，在一个页面中列出所有的文件的名称，通过复选框选中下载，要求导出到一个excel中，分不同的sheet页展示（不知各位是否明白此需求，我的表达能力有限请见谅![icon_eek.gif][]）。

郁闷了我好一阵子，问同事都没有这么做过！

闲着没事翻看润乾jar包，发现了一些端倪。在润乾安装目录里有润乾API，闲着没事可以翻阅。

API中有ExcelReport类可以帮助我们实现上面的需求。

话不多说看代码：

Java代码 [![复制代码][icon_copy.gif]][icon_copy.gif 1] ![收藏代码][icon_star.png]

1.  package cn.com.victorysoft.wellinfo.util;
2.  import java.io.FileOutputStream;
3.  import java.sql.Connection;
4.  import java.util.Map;
5.  import javax.sql.DataSource;
6.  import org.springframework.jdbc.core.JdbcTemplate;
7.  import com.runqian.base4.util.DBTypes;
8.  import com.runqian.report4.usermodel.Context;
9.  import com.runqian.report4.usermodel.DataSourceConfig;
10. import com.runqian.report4.usermodel.Engine;
11. import com.runqian.report4.usermodel.IReport;
12. import com.runqian.report4.util.ReportUtils;
13. import com.runqian.report4.view.excel.ExcelReport;
14.  
15. public class ExportReport \{
16.  
17.  
18. private String reportPath = "";
19.  
20. private String excelPath="";
21.  
22. private String excelFileName;
23.  
24. private DataSource dataSource;
25.  
26. private String reportDataSource;
27.  
28.  
29. private int dbType = DBTypes.ORACLE;
30.  
31. private boolean needTranContent = true;
32.  
33. private String dbCharset = "GBK";
34.  
35. private String clientCharset = "GBK";
36.  
37. private boolean needTranSentence = false;
38.  
39. public void saveExcel(Map param, Map macro, String\[\] reportName, String\[\] sheetName)
40. throws Exception\{
41. int flag = 0;
42. ExcelReport erp=null;
43. JdbcTemplate JT = new JdbcTemplate();
44. JT.setDataSource(this.dataSource);
45. Connection con = JT.getDataSource().getConnection();
46. DataSourceConfig dsoc = new DataSourceConfig(this.dbType, this.needTranContent,
47. this.dbCharset, this.clientCharset, this.needTranSentence);
48. //判断excelFileName是不是为“”或null，以及是不是excel类型
49. if(!"".equals(this.null2blank(this.excelFileName)) && this.isExcelFile(this.excelFileName))\{
50. FileOutputStream fos = new FileOutputStream((this.null2blank(this.excelPath)+this.excelFileName).trim());
51. try \{
52. erp = new ExcelReport();
53. \} catch (Throwable e) \{
54. e.printStackTrace();
55. \}
56. if(reportName != null && reportName.length>0)\{
57. //初始化数组
58. IReport\[\] rd = new IReport\[reportName.length\];
59. Context\[\] context = new Context\[reportName.length\];
60. Engine engine\[\] = new Engine\[reportName.length\];
61. IReport iReport\[\] = new IReport\[reportName.length\];
62. //如果sheetName为空或者长度为零，那么设置默认选项
63. if (sheetName == null || sheetName.length<=0) \{
64. sheetName = new String\[reportName.length\];
65. for (int i = 0; i < reportName.length; i++) \{
66. sheetName\[i\] = "report\_"+String.valueOf(i);
67. \}
68. \}
69. for (int i = 0; i < reportName.length; i++) \{
70. if(!"".equals(this.null2blank(reportName\[i\])))\{
71. //读取报表模板，把\*.raq文件读入内存，并实例化ReportDefine
72. rd\[i\] = ReportUtils.read((this.null2blank(this.reportPath)+reportName\[i\]).trim());
73. //新建上下文对象，在上下文对象中设置数据源
74. context\[i\] = new Context();
75. context\[i\].setDefDataSourceName(this.reportDataSource);
76. context\[i\].setConnection(this.reportDataSource,con);
77. context\[i\].setDataSourceConfig(this.reportDataSource, dsoc);
78. //设置参数和宏
79. if(param != null && param.size()>0)\{
80. context\[i\].setParamMap(param);
81. \}
82. if(macro != null && macro.size()>0)\{
83. Object\[\] array = macro.keySet().toArray();
84. for (int j = 0; j < array.length; j++) \{
85. context\[i\].setMacroValue(array\[j\].toString(), macro.get(array\[j\]).toString());
86. \}
87. \}
88. //运算报表，并在页面上输出报表
89. engine\[i\] = new Engine(rd\[i\],context\[i\]);
90. iReport\[i\] = engine\[i\].calc();
91. //构建每个sheet页
92. erp.addPage(iReport\[i\],sheetName\[i\]);
93. flag ++;
94. \}
95. \}
96. \}else \{
97. throw new Exception("reportName为“”或null");
98. \}
99. //导出Excel
100. if (flag != 0) \{
101. erp.out(fos);
102. \}
103. fos.flush();
104. fos.close();
105. \}else \{
106. throw new Exception("excelFileName为“”或null或不是excel类型");
107. \}
108. \}
109.  
110. private String null2blank(String variable) \{
111. if (variable == null)
112. variable = "";
113. return variable;
114. \}
115.  
116. private boolean isExcelFile(String excelName)\{
117. boolean is = false;
118. if(excelName.endsWith(".xls") || excelName.endsWith(".xlsx"))\{
119. is = true;
120. \}
121. return is;
122. \}
123.  
124. public String getReportPath() \{
125. return reportPath;
126. \}
127. public void setReportPath(String reportPath) \{
128. this.reportPath = reportPath;
129. \}
130. public String getExcelPath() \{
131. return excelPath;
132. \}
133. public void setExcelPath(String excelPath) \{
134. this.excelPath = excelPath;
135. \}
136. public String getExcelFileName() \{
137. return excelFileName;
138. \}
139. public void setExcelFileName(String excelFileName) \{
140. this.excelFileName = excelFileName;
141. \}
142. public DataSource getDataSource() \{
143. return dataSource;
144. \}
145. public void setDataSource(DataSource dataSource) \{
146. this.dataSource = dataSource;
147. \}
148. public String getReportDataSource() \{
149. return reportDataSource;
150. \}
151. public void setReportDataSource(String reportDataSource) \{
152. this.reportDataSource = reportDataSource;
153. \}
154. public int getDbType() \{
155. return dbType;
156. \}
157. public void setDbType(int dbType) \{
158. this.dbType = dbType;
159. \}
160. public boolean isNeedTranContent() \{
161. return needTranContent;
162. \}
163. public void setNeedTranContent(boolean needTranContent) \{
164. this.needTranContent = needTranContent;
165. \}
166. public String getDbCharset() \{
167. return dbCharset;
168. \}
169. public void setDbCharset(String dbCharset) \{
170. this.dbCharset = dbCharset;
171. \}
172. public String getClientCharset() \{
173. return clientCharset;
174. \}
175. public void setClientCharset(String clientCharset) \{
176. this.clientCharset = clientCharset;
177. \}
178. public boolean isNeedTranSentence() \{
179. return needTranSentence;
180. \}
181. public void setNeedTranSentence(boolean needTranSentence) \{
182. this.needTranSentence = needTranSentence;
183. \}
184. \}

以上是关键代码，完整代码示例请参见附加。代码排版有些乱，请童鞋们见谅，如果上面的代码不想看，就下载附件吧，附加注释很详细

[icon_eek.gif]: /images/20220516/265d535dffdf4fa88874a17e9fba97ea.png
[icon_copy.gif]: http://jaykuen.iteye.com/images/icon_copy.gif
[icon_copy.gif 1]: http://jaykuen.iteye.com/blog/784086#
[icon_star.png]: /images/20220516/5f4b382cff8b47fa88ead5c279527614.png