假设你再谈一下JasperReports的超文本报告,你最好不要忘记在现阶段讨论共同基金的范围,因为这与JasperReports无关。 反过来,共同基金也可以用“第三党”的超文本做任何明智的事情。 仅添加一个“超文本编码”和“超文本”;要素,加入“数字代码”网页,其<代码><>/代码>在<代码>的URL上点。 HttpServlet,根据请求参数或途径,将JasperReports理想的超文本报告退回,而你则能够动态地利用EL。 例如:

<iframe width="600" height="400" src="reportservlet?id=${bean.someid}"></iframe>

<url-pattern >后面的HttpServlet 仅可根据其文件/指南援引JasperReports, 并得上<>InputStream,并写上>。 HttpServletResponse连同一套正确的回复头,至少是Content-Type。

BalusC suggestion seems good in case you want HTML reports. Here is my answer in case you wanted any other format (say PDF)

Ajax要求“准备”报告,然后将报告存放在某个地方,然后将新创建的报告索引归还给你。

反应要么成功,要么失败。 如果成功,你会打开一个有假设的URL的新窗口,并将PDF文件提交给它(使用你拥有的ID)。

您可从以下链接下载J.J.

rel=“nofollow” http://www.java2s.com/Code/Jar/d/Downloaddynamicreportscore310jar.htm

或 如果你使用ven子,那么你在om子档案中只增加以下依赖物。

<dependency>
    <groupId>net.sourceforge.dynamicreports</groupId>
    <artifactId>dynamicreports-core</artifactId>
    <version>3.1.3</version>
</dependency>

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<h:commandLink id="summary_jasper" actionListener="#{workReportBean.prepareJasperReport()}">
      <p:graphicImage name="/images/jasper.png"  title="Jasper"/>
</h:commandLink>

Managed Bean //Just provide DB_NAME, CREDENTIALS and TABLE_NAME, JASPER report will be created for you

public void prepareJasperReport(){
    Map<String, String> columnNameNTypeMap = new HashMap<String, String>();
    Connection connection = null;
    try {
        Class.forName("com.mysql.jdbc.Driver");
        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/DB_NAME", "USER", "PASSWORD");
        ResultSet rsColumns = null;
        DatabaseMetaData meta = connection.getMetaData();
        rsColumns = meta.getColumns(null, null, "TABLE_NAME", null);
        while (rsColumns.next()) {
            columnNameNTypeMap.put(rsColumns.getString("COLUMN_NAME"), rsColumns.getString("TYPE_NAME"));
        }} catch (SQLException e) {
        e.printStackTrace();
        return;
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
        return;
    }

    // a new report
    JasperReportBuilder report = DynamicReports.report();
    // populating new report with TABLE object
    report.setDataSource("select * from TABLE_NAME;", connection);
    // creating COLUMNS // add extra datatypes if your table have ex. long, float etc
    for (Map.Entry<String, String> entry : columnNameNTypeMap.entrySet()){
        if(entry.getValue().equalsIgnoreCase("int")){
            report.columns(Columns.column(entry.getKey(), entry.getKey(), DataTypes.integerType()));
        }else if(entry.getValue().equalsIgnoreCase("varchar")){
            report.columns(Columns.column(entry.getKey(), entry.getKey(), DataTypes.stringType()));
        }else if(entry.getValue().equalsIgnoreCase("bit")){
            report.columns(Columns.column(entry.getKey(), entry.getKey(), DataTypes.booleanType()));
        }else if(entry.getValue().equalsIgnoreCase("datetime") || entry.getValue().equalsIgnoreCase("date")){
            report.columns(Columns.column(entry.getKey(), entry.getKey(), DataTypes.dateType()));
        }

    }

    report.title(Components.text("Summary Report").setHeight(40)
            .setStyle(DynamicReports.stl.style()
            .setBold(true).setFontSize(16).setForegroundColor(Color.BLUE)
            .setAlignment(HorizontalAlignment.CENTER, VerticalAlignment.MIDDLE)));

    report.setColumnTitleStyle(DynamicReports.stl.style().setBold(true));
    report.setColumnStyle(DynamicReports.stl.style().setHorizontalAlignment(HorizontalAlignment.LEFT));
    report.setHighlightDetailEvenRows(true);
    report.pageFooter(Components.pageXofY());

    try {
        // show the report
        report.show(false);
        // export the report to a pdf file
        //report.toPdf(new FileOutputStream("d://report.pdf"));
    } catch (DRException e) {
        e.printStackTrace();
    } /*catch (FileNotFoundException e) {
        e.printStackTrace();
    }*/

}