没有为“”类型定义结果类型，该类型的名称为“成功”。

Question

我试图在Struts2.3.4中使用DynamicJasper 5.0.0。我使用以下代码以PDF格式显示数据

动作类中的

try {
    FastReportBuilder drb = new FastReportBuilder();
    DynamicReport dr = drb.addColumn("Size", "size", String.class.getName(), 30).setTitle("Size List Report").setSubtitle("This report was generateed at" + new Date()).setUseFullPageWidth(true) //make colums to fill the page width
            .setPrintBackgroundOnOddRows(true).build();

    JRDataSource ds = new JRBeanCollectionDataSource(getSizeList());
    JasperPrint jp = DynamicJasperHelper.generateJasperPrint(dr, new ClassicLayoutManager(), ds);
    JasperViewer.viewReport(jp);    //finally display the report report   [/CODE]  
} catch (Exception e) {
    System.out.println("Exception");
}
return SUCCESS;

struts.xml**:**

<package name="expotpkg" extends="struts-default, json-default,jasperreports-default"> 
   <result-types>
        <result-type name="dynamic-jasper" class="ar.com.fdvs.dj.webwork.DJResult"/>
    </result-types>

<action name="DownloadSizePdf" class="iland.work.SizesAction" method="fetchDJ">
            <result name="success" type="dynamic-jasper">
                <param name="dynamicReport">dr</param>
                <param name="dataSource">sizeList</param>
                <param name="documentName">Dynamic Report generated with struts 2</param>
                <param name="parameters">params</param>
                <param name="format">PDF</param>
                <param name="layoutManager">classic</param>
            </result>
        </action>
   </package>

在运行此命令时，我会收到以下错误

There is no result type defined for type 'dynamic-jasper' mapped with name 'success'.  Did you mean 'dynamicJasper'? - result - file:/E:/Project/cxn/cnx/build/web/WEB-INF/classes/struts.xml:571:58
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.buildResults(XmlConfigurationProvider.java:653)
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:387)
    ... 20 more

我已经包括了以下jar文件

​

Answer 1

将此配置添加到包中

<result-types>
    <result-type name="dynamicJasper" class="ar.com.fdvs.dj.webwork.DJResult"/>
</result-types>

<action name="DownloadSizePdf" class="iland.work.SizesAction" method="fetchDJ">
    <result name="success" type="dynamicJasper">
        <param name="dynamicReport">dr</param>
        <param name="dataSource">sizeList</param>
        <param name="documentName">Dynamic Report generated with struts 2</param>
        <param name="parameters">params</param>
        <param name="format">PDF</param>
        <param name="layoutManager">classic</param>
    </result>
</action>

ActionSupport类位于包名com.opensymphony.xwork2下。错误发生在您在Struts2中使用的插件的配置上，该插件与您使用的Struts版本不兼容。