#java web#在java web项目运行中，抛出了下面的异常，怎么解决啊

Question

HTTP Status 500 - An exception occurred processing JSP page /Admin/adminUser.jsp at line 38
type Exception report

message An exception occurred processing JSP page /Admin/adminUser.jsp at line 38

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /Admin/adminUser.jsp at line 38

35:       </tr>
36:       <tr>
37:         <td height="30" align="center">     
38:             <display:table name="adminList" id="row" pagesize="15" export="true" class="displaytag" requestURI="/Admin/admin.do?method=browseAdmin" >
39:                 <display:column property="adminName" title="${label1}" sortable="true" headerClass="sortable" style="text-align:center;"/>
40:                 <display:column property="loginName" title="${label2}" sortable="true" headerClass="sortable" style="text-align:center;"/>
41:                 <display:column property="adminType" title="${label3}" sortable="true" headerClass="sortable" style="text-align:center;"/>


Stacktrace:
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:584)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    com.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:32)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

javax.servlet.ServletException: java.lang.ExceptionInInitializerError
    org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:909)
    org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:838)
    org.apache.jsp.Admin.adminUser_jsp._jspService(adminUser_jsp.java:301)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    com.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:32)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.lang.ExceptionInInitializerError
    org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2119)
    org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2116)
    org.apache.commons.lang.builder.ToStringStyle.<clinit>(ToStringStyle.java:78)
    org.apache.commons.lang.builder.ToStringBuilder.<clinit>(ToStringBuilder.java:97)
    org.apache.commons.lang.ArrayUtils.toString(ArrayUtils.java:171)
    org.apache.commons.lang.ArrayUtils.toString(ArrayUtils.java:152)
    org.displaytag.export.ExportViewFactory.<init>(ExportViewFactory.java:61)
    org.displaytag.export.ExportViewFactory.getInstance(ExportViewFactory.java:79)
    org.displaytag.tags.TableTag.doStartTag(TableTag.java:753)
    org.apache.jsp.Admin.adminUser_jsp._jspService(adminUser_jsp.java:224)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    com.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:32)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.lang.NumberFormatException: multiple points
    java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1914)
    java.base/jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
    java.base/java.lang.Float.parseFloat(Float.java:455)
    org.apache.commons.lang.SystemUtils.getJavaVersionAsFloat(SystemUtils.java:1117)
    org.apache.commons.lang.SystemUtils.<clinit>(SystemUtils.java:817)
    org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2119)
    org.apache.commons.lang.builder.ToStringStyle$MultiLineToStringStyle.<init>(ToStringStyle.java:2116)
    org.apache.commons.lang.builder.ToStringStyle.<clinit>(ToStringStyle.java:78)
    org.apache.commons.lang.builder.ToStringBuilder.<clinit>(ToStringBuilder.java:97)
    org.apache.commons.lang.ArrayUtils.toString(ArrayUtils.java:171)
    org.apache.commons.lang.ArrayUtils.toString(ArrayUtils.java:152)
    org.displaytag.export.ExportViewFactory.<init>(ExportViewFactory.java:61)
    org.displaytag.export.ExportViewFactory.getInstance(ExportViewFactory.java:79)
    org.displaytag.tags.TableTag.doStartTag(TableTag.java:753)
    org.apache.jsp.Admin.adminUser_jsp._jspService(adminUser_jsp.java:224)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1085)
    org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:398)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:241)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    com.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:32)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/8.5.9 logs.

Apache Tomcat/8.5.9

Answer 1

/Admin/adminUser.jsp at line 38 这个页面38行，requestURI="/Admin/admin.do?method=browseAdmin" >你看看你的admin.do这个方法是不是报错了。先调试，try{}catch捕获异常