JasperReports学习笔记3-在浏览器生成PDF文件

一、新建web工程，导入jasperreports所需的jar包，配置web.xml

1 < servlet >
2 < servlet-name > PdfServlet </ servlet-name >
3 < servlet-class > net.sf.jasperreports.j2ee.servlets.PdfServlet </ servlet-class >
4 </ servlet >
5 < servlet-mapping >
6 < servlet-name > PdfServlet </ servlet-name >
7 < url-pattern > /servlets/pdf </ url-pattern >
8 </ servlet-mapping >

二、编译jrxml文件，生成jasper文件

1 /**/ /*
 2 * JasperReports - Free Java Reporting Library.
 3 * Copyright (C) 2001 - 2013 Jaspersoft Corporation. All rights reserved.
 4 * http://www.jaspersoft.com
 5 *
 6 * Unless you have purchased a commercial license agreement from Jaspersoft,
 7 * the following license terms apply:
 8 *
 9 * This program is part of JasperReports.
10 *
11 * JasperReports is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * JasperReports is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
23 */
24 package servlets;
25
26 import java.io.IOException;
27 import java.io.PrintWriter;
28
29 import javax.servlet.ServletContext;
30 import javax.servlet.ServletException;
31 import javax.servlet.http.HttpServlet;
32 import javax.servlet.http.HttpServletRequest;
33 import javax.servlet.http.HttpServletResponse;
34
35 import net.sf.jasperreports.engine.JRException;
36 import net.sf.jasperreports.engine.JasperCompileManager;
37
38
39 /** */ /**
40 * @author Teodor Danciu ([email protected])
41 * @version $Id: CompileServlet.java 5876 2013-01-07 19:05:05Z teodord $
42 */
43 public class CompileServlet extends HttpServlet
44

{
45
46
47    /** *//**
48     *
49     */
50    public void service(
51        HttpServletRequest request,
52        HttpServletResponse response
53        ) throws IOException, ServletException
54

{
55        ServletContext context = this.getServletConfig().getServletContext();
56
57        response.setContentType("text/html");
58        PrintWriter out = response.getWriter();
59
60        try
61

{
62            JasperCompileManager.compileReportToFile(context.getRealPath("/reports/WebappReport.jrxml"));
63        }
64        catch (JRException e)
65

{
66 out.println("<html>");
67 out.println("<head>");
68 out.println("<title>JasperReports - Web Application Sample</title>");
69 out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
70 out.println("</head>");
71
72 out.println("<body bgcolor=\"white\">");
73
74 out.println("JasperReports encountered this error :");
75 out.println("<pre>");
76
77 e.printStackTrace(out);
78
79 out.println("</pre>");
80
81 out.println("</body>");
82 out.println("</html>");
83
84 return;
85 }
86
87 out.println("<html>");
88 out.println("<head>");
89 out.println("<title>JasperReports - Web Application Sample</title>");
90 out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
91 out.println("</head>");
92
93 out.println("<body bgcolor=\"white\">");
94
95 out.println("The JRXML report design was successfully compiled.");
96
97 out.println("</body>");
98 out.println("</html>");
99 }
100
101
102}
103

三、填充数据

1 /**/ /*
 2 * JasperReports - Free Java Reporting Library.
 3 * Copyright (C) 2001 - 2013 Jaspersoft Corporation. All rights reserved.
 4 * http://www.jaspersoft.com
 5 *
 6 * Unless you have purchased a commercial license agreement from Jaspersoft,
 7 * the following license terms apply:
 8 *
 9 * This program is part of JasperReports.
10 *
11 * JasperReports is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * JasperReports is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
23 */
24 package servlets;
25
26 import java.io.File;
27 import java.io.IOException;
28 import java.io.PrintWriter;
29 import java.util.HashMap;
30 import java.util.Map;
31
32 import javax.servlet.ServletContext;
33 import javax.servlet.ServletException;
34 import javax.servlet.http.HttpServlet;
35 import javax.servlet.http.HttpServletRequest;
36 import javax.servlet.http.HttpServletResponse;
37
38 import net.sf.jasperreports.engine.JRException;
39 import net.sf.jasperreports.engine.JRRuntimeException;
40 import net.sf.jasperreports.engine.JasperFillManager;
41 import net.sf.jasperreports.engine.JasperPrint;
42 import net.sf.jasperreports.j2ee.servlets.BaseHttpServlet;
43 import datasource.WebappDataSource;
44
45
46 /** */ /**
47 * @author Teodor Danciu ([email protected])
48 * @version $Id: FillServlet.java 5876 2013-01-07 19:05:05Z teodord $
49 */
50 public class FillServlet extends HttpServlet
51

{
52
53
54    /** *//**
55     *
56     */
57    public void service(
58        HttpServletRequest request,
59        HttpServletResponse response
60        ) throws IOException, ServletException
61

{
62        ServletContext context = this.getServletConfig().getServletContext();
63
64        response.setContentType("text/html");
65        PrintWriter out = response.getWriter();
66
67        try
68

{
69            String reportFileName = context.getRealPath("/reports/WebappReport.jasper");
70            File reportFile = new File(reportFileName);
71            if (!reportFile.exists())
72                throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");
73
74            Map parameters = new HashMap();
75            parameters.put("ReportTitle", "Address Report");
76            parameters.put("BaseDir", reportFile.getParentFile());
77
78            JasperPrint jasperPrint =
79                JasperFillManager.fillReport(
80                    reportFileName,
81                    parameters,
82                    new WebappDataSource()
83                    );
84
85            request.getSession().setAttribute(BaseHttpServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
86        }
87        catch (JRException e)
88

{
89 out.println("<html>");
90 out.println("<head>");
91 out.println("<title>JasperReports - Web Application Sample</title>");
92 out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
93 out.println("</head>");
94
95 out.println("<body bgcolor=\"white\">");
96
97 out.println("JasperReports encountered this error :");
98 out.println("<pre>");
99
100 e.printStackTrace(out);
101
102 out.println("</pre>");
103
104 out.println("</body>");
105 out.println("</html>");
106 }
107
108 out.println("<html>");
109 out.println("<head>");
110 out.println("<title>JasperReports - Web Application Sample</title>");
111 out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
112 out.println("</head>");
113
114 out.println("<body bgcolor=\"white\">");
115
116 out.println("The compiled report design was successfully filled with data.");
117
118 out.println("</body>");
119 out.println("</html>");
120 }
121
122
123}
124

JasperReports学习笔记3-在浏览器生成PDF文件

JasperReports学习笔记3-在浏览器生成PDF文件

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