我正在尝试在jsp页面中打印列表，但出现错误 java.lang.NumberFormatException.forInputString
java.lang.NumberFormatException.forInputString
但是，我没有使用任何数字或将任何东西转换为数字，而且我真的不知道我在做什么错，请帮助我。
我看到了一个类似于我的问题编号Exception，他（她）接受的答案是使用“foreach”对列表进行迭代，但是我做到了，但仍然给我那个错误。
有谁可以帮助我吗？
这是jsp
<tr class="odd"> <th style="width: 25px;" class="border" align="center">#</th> <th style="width: 200px;" class="border">Process</th> <th style="width: 328px;" class="border">Time Schedule</th> <th style="width: 100px;" class="border">Next time running</th> <th style="width: 50px;" class="border">Server</th> <th style="width: 50px;" class="border">On || Off</th> <th style="width: 50px;" class="border">Emails</th> <th style="width: 50px;" class="border">Description</th> </tr> </thead> <tbody> <c:forEach items="${JobList}" var="job" varStatus="index"> <td align="center">${index.count}</td> <td align="center">${job.process}</td> <td align="center">${job.schedTime}</td> <td align="center">${job.nextTimeRun}</td> <td align="center">${job.server}</td> <td align="center">${job.isActive}</td> <td align="center">${job.email}</td> <td align="center">${job.description}</td> </tr> </c:forEach> <tr><td colspan="6"> </td></tr> </tbody>
这是数据豆
private String process; private String schedTime; private String nextTimeRun; private String runServer; private String mailOrder; private String lookCode; private String lookName; private String description; private String isActive; /* getter and setter methods */
这是控制器中设置JobList的方法
public ModelAndView showAppJobsList(final HttpServletRequest request, final HttpServletResponse response) throws BillerException { final ModelAndView modelAndView = new ModelAndView("admin/showAppJobs"); List<LookUpJobs> lookUpJobsList =lookupSvc.getJobsList(); modelAndView.addObject("JobList", lookUpJobsList); return modelAndView; }
错误是这样的：
java.lang.NumberFormatException: For input string: "process" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:449) at java.lang.Integer.parseInt(Integer.java:499) at javax.el.ArrayELResolver.coerce(ArrayELResolver.java:153) at javax.el.ArrayELResolver.getValue(ArrayELResolver.java:45) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at org.apache.el.parser.AstValue.getValue(AstValue.java:97) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:923) at org.apache.jsp.WEB_002dINF.configureJSP.admin.showAppJobs_jsp._jspx_meth_c_005fforEach_005f1(showAppJobs_jsp.java:789) at org.apache.jsp.WEB_002dINF.configureJSP.admin.showAppJobs_jsp._jspService(showAppJobs_jsp.java:312) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292) at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:142) at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:243) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1141) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:878) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:475) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:430) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:662)
我找到了答案，问题不在jsp中，问题在dao中，以某种方式在映射时，hibernate检索了列表，但无法映射值，所以我不得不向所有列添加别名然后为查询中的每一列添加标量，如下所示。
public List<LookUpJobs> getJobsList(){ return (List<LookUpJobs>) getSession().createSQLQuery("select " + "j.type type," + " j.description process," + " j.value schedTime," + " from tableName j inner join tableName m on j.type = m.value") .addScalar("type",Hibernate.STRING) .addScalar("process",Hibernate.STRING) .addScalar("schedTime",Hibernate.STRING) .setResultTransformer(Transformers.aliasToBean(LookUpJobs.class)) .list(); }
