编辑救生索停靠栏jsp页面错误

Question

我想自定义救生艇停靠栏view.jsp页面，并想添加一个文本(项目版本)，这是从一个豆类java文件。但问题是，当我想初始化java类时，我得到了一个错误。我是一个非常新手，也不知道是否有可能在liferay jsp页面中创建一个外部类对象。以下是我的代码：：

        <%@page import="net.simplyfiIT.bean.UserManagementBean"%>

        <%
        String version;     
        UserManagementBean bean=new UserManagementBean();
        version=bean.getVersion();
        %>

错误消息：

          Only a type can be imported. net.simplyfiIT.bean.UserManagementBean resolves to a package

An error occurred at line: 342 in the jsp file: /html/portlet/dockbar/view.jsp
 UserManagementBean cannot be resolved to a type
 339:               
 340:               <%
341:                String version;
342:                UserManagementBean bean=new UserManagementBean();
 343:               version=bean.getVersion();
 344:                   
  345: 


  Stacktrace:
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:469)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
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:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)

注意: Bean类是在tomcat目录中编译的。

Answer 1

我认为你想要使用：

<jsp:useBean id="someID" class="net.simplyfiIT.bean.UserManagementBean">

而不是

<%@page import="net.simplyfiIT.bean.UserManagementBean"%>

Bean应该放在类路径中。

(我自己也是个菜鸟)