使用JFreeReport处理Java Swing编程中的报表问题

JFreeReport是一个非常不错的开源的东东，更多详细的关于此东东的基础性和相关介绍请参考其官方网站（http://www.jfree.org/jfreereport/）。

我去年在开发一个SWING的应用系统的时候就是使用JFreeReport来处理的报表问题。它同时还支持将报表输出为PDF，XSL等格式，功能之强大让我觉得值得去研究和关注她。

JFreeReport主要有两种生成报表的形式，一种是在程序中直接生成，当然这种方式肯定不利于维护和修改，同时在程序中生成报表也比较麻烦，网上有相关的文章介绍，大家可以去百度或是GOOGLE一下，在此就不再冗述了。

第二种方法就是通过程序＋XML配置文件的方法来控制报表的格式。主要分为如下几个步骤来实现：

1、导入相关的包和类

1 import org.jfree.report.JFreeReport;
2 import org.jfree.report.ReportProcessingException;
3 import org.jfree.report.modules.gui.base.PreviewFrame;
4 import org.jfree.report.modules.gui.base.components.ActionButton;
5 import org.jfree.report.modules.gui.base.components.ActionMenuItem;
6 import org.jfree.report.modules.parser.base.ReportGenerator;
7 import org.jfree.report.util.Log;
8 import org.jfree.report.util.WaitingImageObserver;
9 import org.jfree.report.modules.gui.base.PreviewDialog;

2、将数据放入一个TableModel中

1 JTable jt = new JTable(aaa,v);
2 // 获得创建报表需要用到的数据
3 sdata = jt.getModel();

3、读入报表格式控制文件（即相应的XML文件）

1 try {
2        if (report == null ) {
3         URL in = getClass().getResource( " /zmx/chosun/ScorePrintNew.xml " );
4          this .report = parseReport(in);
5       }
6        if (report == null ) {
7         JOptionPane.showMessageDialog( new JFrame(), " The report definition is null " );
8          return ;
9       }
10     }
11      catch (Exception e) {
12       e.printStackTrace();
13     }

4、将报表和数据结合起来

1 this .report.setData(sdata);

5、调用并打开预览窗口

1      try {
2        // 将生成的报表放到预览窗口中
3       final PreviewDialog preview = new PreviewDialog(report);
4       preview.addWindowListener( new WindowAdapter() {
5          public void windowClosing( final WindowEvent event) {
6           preview.dispose();
7         }
8
9       });
10       preview.pack();
11        // 显示报表预览窗口
12       preview.setVisible( true );
13     }
14      catch (ReportProcessingException e) {
15       System.out.println(e);
16     }

6、OK，大功告成。

关于XML的报表格式控制文件的编写我将会在后续的文章中详细讲解。
欢迎大家批评指正！

本程序源代码如下：

  1 import javax.swing.table.TableModel;
  2 import com.borland.dx.sql.dataset. * ;
  3 import javax.swing. * ;
  4 import com.borland.dbswing. * ;
  5 import java.awt.event.WindowAdapter;
  6 import java.awt.event.WindowEvent;
  7 import java.net.URL;
  8 import java.awt.print.Paper;
  9 import java.awt.print.PageFormat;
10 import java.awt. * ;
11 import java.sql.Statement;
12 import java.sql.ResultSet;
13 import java.util.Vector;
14
15
16
17 import org.jfree.report.JFreeReport;
18 import org.jfree.report.ReportProcessingException;
19 import org.jfree.report.modules.gui.base.PreviewFrame;
20 import org.jfree.report.modules.gui.base.components.ActionButton;
21 import org.jfree.report.modules.gui.base.components.ActionMenuItem;
22 import org.jfree.report.modules.parser.base.ReportGenerator;
23 import org.jfree.report.util.Log;
24 import org.jfree.report.util.WaitingImageObserver;
25 import org.jfree.report.modules.gui.base.PreviewDialog;
26
27
28 public class ScorePrint{
29    public TableModel sdata = null ;
30   JFreeReport report = null ;
31   Database database = new Database();
32   QueryDataSet queryDataSet = new QueryDataSet();
33   JPanel jPanel1 = new JPanel();
34   TableScrollPane tableScrollPane1 = new TableScrollPane();
35   JdbTable jdbTable1 = new JdbTable();
36
37
38    public ScorePrint() {
39      try {
40       jbInit();
41     }
42      catch (Exception e) {
43       e.printStackTrace();
44     }
45   }
46
47    private void jbInit() throws Exception {
48     database.setConnection( new com.borland.dx.sql.dataset.ConnectionDescriptor( " jdbc:odbc:zhong " , "" , "" , false , " sun.jdbc.odbc.JdbcOdbcDriver " ));
49     Statement stmt = database.getJdbcConnection().createStatement();
50
51     ResultSet rs = stmt.executeQuery( " select bmxh,xm,chd,chw,mad,maw,[end],enw,phd,phw,pod,pow,totd from bmk order by bydm,bmxh " );
52
53     Vector v = new Vector();
54     Vector aaa = new Vector();
55     v.add( " bmxh " );
56     v.add( " xm " );
57     v.add( " chd " );
58     v.add( " chw " );
59     v.add( " mad " );
60     v.add( " maw " );
61     v.add( " end " );
62     v.add( " enw " );
63     v.add( " phd " );
64     v.add( " phw " );
65     v.add( " pod " );
66     v.add( " pow " );
67     v.add( " totd " );
68      while (rs.next()){
69       Vector vv = new Vector();
70       vv.add(rs.getString( 1 ));
71       vv.add(rs.getString( 2 ));
72       vv.add(rs.getString( 3 ));
73       vv.add( new Integer(rs.getInt( 4 )).toString());
74       vv.add(rs.getString( 5 ));
75       vv.add( new Integer(rs.getInt( 6 )).toString());
76       vv.add(rs.getString( 7 ));
77       vv.add( new Integer(rs.getInt( 8 )).toString());
78       vv.add(rs.getString( 9 ));
79       vv.add( new Integer(rs.getInt( 10 )).toString());
80       vv.add(rs.getString( 11 ));
81       vv.add( new Integer(rs.getInt( 12 )).toString());
82       vv.add( new Integer(rs.getInt( " totd " )).toString());
83       aaa.add(vv);
84     }
85   JTable jt = new JTable(aaa,v);
86
87
88      // 获得创建报表需要用到的数据
89     sdata = jt.getModel();
90
91      // 获得报表要用到的报表定义内容
92
93      try {
94        if (report == null ) {
95         URL in = getClass().getResource( " /zmx/chosun/ScorePrintNew.xml " );
96          this .report = parseReport(in);
97       }
98        if (report == null ) {
99         JOptionPane.showMessageDialog( new JFrame(), " The report definition is null " );
100          return ;
101       }
102     }
103      catch (Exception e) {
104       e.printStackTrace();
105     }
106
107
117
118
119      // 将报表定义和数据结合
120      this .report.setData(sdata);
121
122
123      try {
124        // 将生成的报表放到预览窗口中
125       final PreviewDialog preview = new PreviewDialog(report);
126       preview.addWindowListener( new WindowAdapter() {
127          public void windowClosing( final WindowEvent event) {
128           preview.dispose();
129         }
130
131       });
132       preview.pack();
133        // 显示报表预览窗口
134       preview.setVisible( true );
135     }
136      catch (ReportProcessingException e) {
137       System.out.println(e);
138     }
139
140
141
142
143
144    }
145
146    JFreeReport parseReport(URL templateURL) {
147
148      JFreeReport result = null ;
149      ReportGenerator generator = ReportGenerator.getInstance();
150       try {
151        result = generator.parseReport(templateURL);
152      }
153       catch (Exception e) {
154        Log.error( " Failed to parse the report definition " , e);
155      }
156       return result;
157
158    }
159
160
161 }

本程序使用XML文件如下：

1 <? xml version="1.0" encoding="GBK" ?>
2 <! DOCTYPE report PUBLIC "-//JFreeReport//DTD report definition//EN//simple"
3                         "http://jfreereport.sourceforge.net/report.dtd" >
4 < report name ="成绩打印" pageformat ="A4" leftmargin ="20" topmargin ="20" >
5
6    
7    
8    
9    < configuration >
10      < property name ="org.jfree.report.modules.output.pageable.pdf.Encoding" > Identity-H </ property >
11      < property name ="org.jfree.report.modules.output.pageable.pdf.EmbedFonts" > true </ property >
12      < property name ="org.jfree.report.targets.table.TableWriter.SheetNameFunction" > sheetNameExpression </ property >
13    </ configuration >
14
15      < pagefooter height ="14"
16     onfirstpage ="true" onlastpage ="true"
17     fontname ="宋体" fontstyle ="plain" fontsize ="9" >
18      < string-field fieldname ="PageNumber" x ="0" y ="2" width ="100%" height ="12" alignment ="center" />
19
20
21    </ pagefooter >
22
23    < groups height ="55" >
24      < group name ="bmxh" >
25        < groupheader height ="22" fontname ="SansSerif" fontstyle ="plain" fontsize ="11" pagebreak ="false" >
26      < label x ="0" y ="10" width ="100%" height ="11" fontsize ="11" alignment ="left"
27        > 报   名   号     姓  名    语文位置值  数学位置值  英语位置值  理化位置值  政史位置值   总位置值 </ label >
28
29        </ groupheader >
30        < fields >
31          < field > bmxh </ field >
32        </ fields >
33          < groupfooter height ="5" fontstyle ="plain" fontsize ="11" pagebreak ="false" >
34          < line x1 ="0" y1 ="5" x2 ="0" y2 ="5" color ="#CFCFCF" weight ="0.5" />
35        </ groupfooter >
36      </ group >
37    </ groups >
38
39    
40    
41    < items height ="0" fontname ="SansSerif" fontstyle ="plain" fontsize ="11" >
42
43      < string-field x ="0" y ="1" width ="80" height ="12" alignment ="left" fontname ="宋体" fontsize ="10"
44       fieldname ="bmxh" />
45      < string-field x ="64" y ="1" width ="60" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
46       fieldname ="xm" />
47      < string-field x ="110" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
48       fieldname ="chd" />
49      < string-field x ="144" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
50       fieldname ="chw" />
51      < string-field x ="175" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
52       fieldname ="mad" />
53      < string-field x ="212" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
54       fieldname ="maw" />
55      < string-field x ="240" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
56       fieldname ="end" />
57      < string-field x ="273" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
58       fieldname ="enw" />
59      < string-field x ="305" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
60       fieldname ="phd" />
61      < string-field x ="339" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
62       fieldname ="phw" />
63      < string-field x ="370" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
64       fieldname ="pod" />
65      < string-field x ="405" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
66       fieldname ="pow" />
67      < string-field x ="450" y ="1" width ="40" height ="12" alignment ="left"   fontname ="宋体" fontstyle ="plain" fontsize ="10"
68       fieldname ="totd" />
69
70
71
72
73    </ items >
74
75    
76    
77 < functions >
78
79      < function name ="PageNumber" class ="org.jfree.report.function.PageFunction" >
80      </ function >
81
82
83    </ functions >
84
85 </ report >

使用JFreeReport处理Java Swing编程中的报表问题

你可能感兴趣的:(使用JFreeReport处理Java Swing编程中的报表问题)