<% response.setStatus(400); // 获取异常类 Throwable ex = Exceptions.getThrowable(request); // 编译错误信息 StringBuilder sb = new StringBuilder("错误信息：\n"); if (ex != null) { if (ex instanceof BindException) { for (ObjectError e : ((BindException)ex).getGlobalErrors()){ sb.append("☆" + e.getDefaultMessage() + "(" + e.getObjectName() + ")\n"); } for (FieldError e : ((BindException)ex).getFieldErrors()){ sb.append("☆" + e.getDefaultMessage() + "(" + e.getField() + ")\n"); } LoggerFactory.getLogger("400.jsp").warn(ex.getMessage(), ex); }else if (ex instanceof ConstraintViolationException) { for (ConstraintViolation v : ((ConstraintViolationException)ex).getConstraintViolations()) { sb.append("☆" + v.getMessage() + "(" + v.getPropertyPath() + ")\n"); } } else { //sb.append(Exceptions.getStackTraceAsString(ex)); sb.append("☆" + ex.getMessage()); } } else { sb.append("未知错误.\n\n"); } // 如果是异步请求或是手机端，则直接返回信息 if (Servlets.isAjaxRequest(request)) { out.print(sb); } // 输出异常信息页面 else { %> <%@page import="javax.validation.ConstraintViolation"%> <%@page import="javax.validation.ConstraintViolationException"%> <%@page import="org.springframework.validation.BindException"%> <%@page import="org.springframework.validation.ObjectError"%> <%@page import="org.springframework.validation.FieldError"%> <%@page import="org.slf4j.Logger,org.slf4j.LoggerFactory"%> <%@page import="com.thinkgem.jeesite.common.web.Servlets"%> <%@page import="com.thinkgem.jeesite.common.utils.Exceptions"%> <%@page import="com.thinkgem.jeesite.common.utils.StringUtils"%> <%@page contentType="text/html;charset=UTF-8" isErrorPage="true"%> <%@include file="/WEB-INF/views/include/taglib.jsp"%> 400 - 请求出错 <%@include file="/WEB-INF/views/include/head.jsp" %>

参数有误,服务器无法解析.

<%=StringUtils.toHtml(sb.toString())%>
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<% } out = pageContext.pushBody(); %>