我试图获取不同的记录。但没有成功。我尝试了以下代码
DynamicQuery dynamicQry = DynamicQueryFactoryUtil.forClass（Clipping.class）; dynamicQry.add（RestrictionsFactoryUtil.isNotNull（ “新京报”））; dynamicQry.setProjection（ProjectionFactoryUtil.distinct（ProjectionFactoryUtil.property（ “新京报”）））; 列表按= ClippingLocalServiceUtil.dynamicQuery（dynamicQry）;
我收到了以下错误
java.lang.ClassCastException: java.lang.String cannot be cast to com.dbservice.model.Clipping
at org.apache.jsp.html.pressClipingReport.view_jsp._jspService(view_jsp.java:924)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
解决方案是什么？ 请帮忙
提前致谢