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1
28 package net.sf.jasperreports.j2ee.servlets;
29
30 import java.io.ByteArrayOutputStream  ;
31 import java.io.IOException ;
32 import java.io.OutputStream ;
33 import java.util.List ;
34
35 import javax.servlet.ServletException ;
36 import javax.servlet.ServletOutputStream ;
37 import javax.servlet.http.HttpServletRequest ;
38 import javax.servlet.http.HttpServletResponse ;
39
40 import net.sf.jasperreports.engine.JRException;
41 import net.sf.jasperreports.engine.JRExporterParameter;
42 import net.sf.jasperreports.engine.export.JRRtfExporter;
43
44
48 public class RtfServlet extends BaseHttpServlet
49 {
50
51
52
55 public void service(
56 HttpServletRequest request,
57 HttpServletResponse response
58 ) throws IOException , ServletException
59 {
60 List jasperPrintList = BaseHttpServlet.getJasperPrintList(request);
61
62 if (jasperPrintList == null)
63 {
64 throw new ServletException ("No JasperPrint documents found on the HTTP session.");
65 }
66
67 Boolean isBuffered = Boolean.valueOf(request.getParameter(BaseHttpServlet.BUFFERED_OUTPUT_REQUEST_PARAMETER));
68 if (isBuffered.booleanValue())
69 {
70 JRRtfExporter exporter = new JRRtfExporter();
71 exporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, jasperPrintList);
72
73 ByteArrayOutputStream baos = new ByteArrayOutputStream ();
74 exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
75
76 try
77 {
78 exporter.exportReport();
79 }
80 catch (JRException e)
81 {
82 throw new ServletException (e);
83 }
84
85 byte[] bytes = baos.toByteArray();
86
87 if (bytes != null && bytes.length > 0)
88 {
89 response.setContentType("application/rtf");
90 response.setHeader("Content-Disposition", "inline; filename=\"file.rtf\"");
91 response.setContentLength(bytes.length);
92 ServletOutputStream ouputStream = response.getOutputStream();
93
94 try
95 {
96 ouputStream.write(bytes, 0, bytes.length);
97 ouputStream.flush();
98 }
99 finally
100 {
101 if (ouputStream != null)
102 {
103 try
104 {
105 ouputStream.close();
106 }
107 catch (IOException ex)
108 {
109 }
110 }
111 }
112 }
113 }
124 else
125 {
126 response.setContentType("application/rtf");
127 response.setHeader("Content-Disposition", "inline; filename=\"file.rtf\"");
128
129 JRRtfExporter exporter = new JRRtfExporter();
130 exporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, jasperPrintList);
131
132 OutputStream ouputStream = response.getOutputStream();
133 exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);
134
135 try
136 {
137 exporter.exportReport();
138 }
139 catch (JRException e)
140 {
141 throw new ServletException (e);
142 }
143 finally
144 {
145 if (ouputStream != null)
146 {
147 try
148 {
149 ouputStream.close();
150 }
151 catch (IOException ex)
152 {
153 }
154 }
155 }
156 }
157 }
158
159
160 }
161
162 |
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