lgnore pagination 勾选上，就可以取消分页功能。

要运行打印的applet需要jasperreports-x.x.x-applet.jar，可以用winrar直接解压缩了，
然后把applet编辑后的class和解压缩后的文件放在同一个目录（比如temp），
在命令提示符中输入 jar 命令打成一个包，例如：jar -cvf stengReport1Applet.jar *
接着开始做数字签名：

  (1)生成证书: keytool -genkey -alias printkey -dname "CN=stsoft, OU=stsoft, O=stsoft, L=nc, ST=nc, C=cn" -keystore printstore -keypass supervise -storepass supervise -validity 3650
  默认的签名只有半年的有效期，这里我们用-validity参数设定为10年的有效期
  (2)导出证书: keytool -export -keystore printstore -alias printkey -file print.cer -storepass supervise
  (3)对jar包签名：
 jarsigner -keystore printstore stengReport1Applet.jar printkey
 jarsigner -keystore printstore commons-collections-2.1.1.jar printkey
 jarsigner -keystore printstore commons-digester-2.1.jar printkey
 jarsigner -keystore printstore commons-logging-1.1.1.jar printkey
 jarsigner -keystore printstore jasperreports-5.2.0.jar printkey
 jarsigner -keystore printstore jasperreports-applet-5.2.0.jar printkey
 jarsigner -keystore printstore jasperreports-fonts-5.2.0.jar printkey
  jarsigner -keystore printstore jasperreports-javaflow-5.2.0.jar printkey

现在在temp下已经有了一个stengReport1Applet.jar和一个print.cer，把这两个文件拷贝回项目中，记得还是放在同一个目录下


运行demo示例中的jasper-webapp，访问print.html和内嵌式viewer.html









 

三、struts.xml配置
------------------------
struts2中的需继承jasperreports-default命名空间

  <package name=“default” extends="struts-default, jasperreports-default">
  <!-- 报表输出Action -->
  <action name="JR_*_*" class="jasperReportAction">
      <result name="success" type="jasper">
          <param name="location">/reports/{1}.jasper</param>               
          <param name="connection">connection</param>
   <param name="format">{2}</param>
   <param name="documentName">{1}</param>
   <param name="reportParameters">para</param>
   <param name="imageServletUrl"><![CDATA[/image?image=]]></param>
      </result>
  </action>
 </package>

 location - 提供利用iReport制作编译好的报表文件。
     dataSource - 数据源
     format - 报表输出格式
    reportParameters - 报表参数
 

四、web.xml配置
---------------------
 报表生成html需配置/image

<!-- jasperreports报表的配置 start -->
  <servlet>
     <servlet-name>JasperReportImageServlet</servlet-name> 
       <servlet-class>net.sf.jasperreports.j2ee.servlets.ImageServlet</servlet-class> 
  </servlet> 
  <servlet-mapping>
     <servlet-name>JasperReportImageServlet</servlet-name>
     <url-pattern>/image</url-pattern>
 </servlet-mapping>

<!-- jasperreports报表的配置 end -->

二、Map数组（Map Datasources）
有的时候数据不一定要从数据库里面来，还有可能从Map数组里面来成生Map[]的方法

private Map[] initializeMapArray()
{
//你可以把数组里面的每个map看成一个对象，就相于数据库里面的每个字段
HashMap[] reportRows = new HashMap[4];
HashMap row1Map = new HashMap();
HashMap row2Map = new HashMap();
HashMap row3Map = new HashMap();
HashMap row4Map = new HashMap();
row1Map.put("tail_num", "N263Y");
row1Map.put("aircraft_serial", "T-11");
row1Map.put("aircraft_model", "39 ROSCOE TRNR RACER");
row1Map.put("engine_model", "R1830 SERIES");
row2Map.put("tail_num", "N4087X");
row2Map.put("aircraft_serial", "BA100-163");
row2Map.put("aircraft_model", "BRADLEY AEROBAT");
row2Map.put("engine_model", "R2800 SERIES");
row3Map.put("tail_num", "N43JE");
row3Map.put("aircraft_serial", "HAYABUSA 1");
row3Map.put("aircraft_model", "NAKAJIMA KI-43 IIIA");
row3Map.put("engine_model", "R1830 SERIES");
row4Map.put("tail_num", "N912S");
row4Map.put("aircraft_serial", "9973CC");
row4Map.put("aircraft_model", "PA18-150");
row4Map.put("engine_model", "R-1820 SER");
reportRows[0] = row1Map;
reportRows[1] = row2Map;
reportRows[2] = row3Map;
reportRows[3] = row4Map;
return reportRows;
}

生成JRMapArrayDataSource对象
private JRDataSource createReportDataSource()  
{  
JRMapArrayDataSource dataSource;  
Map[] reportRows = initializeMapArray();  
dataSource = new JRMapArrayDataSource(reportRows);  
return dataSource;  
}

三、Map集合
 
private JRDataSource createReportDataSource()
{
JRMapCollectionDataSource dataSource;
Collection reportRows = initializeMapCollection();
dataSource = new JRMapCollectionDataSource(reportRows);
return dataSource;
}
private Collection initializeMapCollection()
{
ArrayList reportRows = new ArrayList();
HashMap row1Map = new HashMap();
HashMap row2Map = new HashMap();
HashMap row3Map = new HashMap();
HashMap row4Map = new HashMap();
row1Map.put("tail_num", "N263Y");
row1Map.put("aircraft_serial", "T-11");
row1Map.put("aircraft_model", "39 ROSCOE TRNR RACER");
row1Map.put("engine_model", "R1830 SERIES");
row2Map.put("tail_num", "N4087X");
row2Map.put("aircraft_serial", "BA100-163");
row2Map.put("aircraft_model", "BRADLEY AEROBAT");
row2Map.put("engine_model", "R2800 SERIES");
row3Map.put("tail_num", "N43JE");
row3Map.put("aircraft_serial", "HAYABUSA 1");
row3Map.put("aircraft_model", "NAKAJIMA KI-43 IIIA");
row3Map.put("engine_model", "R1830 SERIES");
row4Map.put("tail_num", "N912S");
row4Map.put("aircraft_serial", "9973CC");
row4Map.put("aircraft_model", "PA18-150");
row4Map.put("engine_model", "R-1820 SER");
reportRows.add(row1Map);
reportRows.add(row2Map);
reportRows.add(row3Map);
reportRows.add(row4Map);
return reportRows;
}

JRDataSource dataSource = createReportDataSource();  
JasperRunManager.runReportToPdfStream(reportStream,  
servletOutputStream, new HashMap(), dataSource); 

四、对象数组（Java Objects as Datasources）对象JAVABEAN

private JRDataSource createReportDataSource()
{
JRBeanArrayDataSource dataSource;
AircraftData[] reportRows = initializeBeanArray();
dataSource = new JRBeanArrayDataSource(reportRows);
return dataSource;
}

private AircraftData[] initializeBeanArray()
{
AircraftData[] reportRows = new AircraftData[4];
reportRows[0] = new AircraftData("N263Y", "T-11", "39 ROSCOE TRNR
RACER", "R1830 SERIES");
reportRows[1] = new AircraftData("N4087X", "BA100-163", "BRADLEY
AEROBAT", "R2800 SERIES");
reportRows[2] = new AircraftData("N43JE", "HAYABUSA 1", "NAKAJIMA
KI-43 IIIA", "R1830 SERIES");
reportRows[3] = new AircraftData("N912S", "9973CC", "PA18-150",
"R-1820 SER");
return reportRows;
}

//最后servlet里面调用
JRDataSource dataSource = createReportDataSource();
JasperRunManager.runReportToPdfStream(reportStream,
servletOutputStream, new HashMap(), dataSource);

五、对象集合
和对象数组基本上一样,就是最后生成的是JRBeanCollectionDataSource

private JRDataSource createReportDataSource()
{
JRBeanCollectionDataSource dataSource;
Collection reportRows = initializeBeanCollection();
dataSource = new JRBeanCollectionDataSource(reportRows);
return dataSource;
}

JRDataSource dataSource = createReportDataSource();
JasperRunManager.runReportToPdfStream(reportStream,
servletOutputStream, new HashMap(), dataSource);

六、XML数据成生报表（XML as Datasource）

JRXmlDataSource xmlDataSource = new JRXmlDataSource(
new BufferedInputStream(getServletConfig().getServletContext()
.getResourceAsStream("/reports/AircraftData.xml")),
"/AircraftData/aircraft");


七、json数据源

List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

        Map<String, Object> row1 = new HashMap<String, Object>();
        Map<String, Object> row2 = new HashMap<String, Object>();

        Map<String, Object> row = new HashMap<String, Object>();
        row.put("field1", "001");
        row.put("field2", "张三");
        row.put("field3", "中国上海");
        row.put("field4", "field4");
        row.put("field5", "field5");
        list.add(row);
        row = new HashMap<String, Object>();
        row.put("field1", "002");
        row.put("field2", "李四");
        row.put("field3", "中国杭州");
        row.put("field4", "field4");
        row.put("field5", "field5");
        list.add(row);
        row = new HashMap<String, Object>();
        row.put("field1", "003");
        row.put("field2", "王五");
        row.put("field3", "中国南昌");
        row.put("field4", "field4");
        row.put("field5", "field5");
        list.add(row);

        row2.put("uAnswer", list);
        row1.put("qNaire", row2);

        JSONObject jsonObject = JSONObject.fromObject(row1);
        String json = jsonObject.toString();

        Map<String, Object> jasperPara = new HashMap<String, Object>();
        jasperPara.put("TITLE", "json数据报表演示样例（20131012）");
        InputStream is = new ByteArrayInputStream(json.getBytes());
        jasperPara.put("JSON_INPUT_STREAM", is);
        jasperPara.put(JsonQueryExecuterFactory.JSON_LOCALE, Locale.CHINA);
        jasperPara.put(JRParameter.REPORT_LOCALE, Locale.CHINA);

    {"qNaire": {
          "uAnswer": [
            {
              "field1": "001",    
              "field2": "张三",    
              "field3": "中国上海",    
              "field4": "field4",
              "field5": "field5",
            },
            {
              "field1": "002",
              "field2": "李四",
              "field3": "中国杭州",
              "field4": "field4",
              "field5": "field5",
            },
            {
              "field1": "003",
              "field2": "王五",
              "field3": "中国南昌",
              "field4": "field4",
              "field5": "field5",
          }
          ]
        }}

ireport配置截图：

对应不同的版本把KeyGenerator类放到任意工程下，执行程序，在控制台输入注册名称，回车后会生成序列号。