默认@Fail

默认@Fail

入口方法或适配器或其他原因导致异常时需要走的视图,依然是打开MainModule,加入代码

@Fail("jsp:jsp.500")

含义就是内部重定向到/WEB-INF/jsp/500.jsp页面

打开web.xml, 加入如下配置

    <error-page>
        <error-code>500</error-code>
        <location>/WEB-INF/jsp/500.jsp</location>
    </error-page>

在WebContent/WEB-INF/jsp/下新建一个文件,叫500.jsp, 内容如下

<%@page import="org.nutz.lang.Strings"%>
<%@page import="java.util.Enumeration"%>
<%@page import="java.io.ByteArrayOutputStream"%>
<%@page import="java.io.PrintWriter"%>
<%@page import="org.nutz.mvc.Mvcs"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isErrorPage="true" trimDirectiveWhitespaces="true"
    session="false"%>
<% response.setStatus(500); %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>出错啦</title>
</head>
<body>
<div>
<%
    Throwable e = exception;
    if (e == null) {
        Object obj = request.getAttribute("obj");
        if (obj != null && obj instanceof Throwable) {
            e = (Throwable)obj;
        } else {
            if (Mvcs.getActionContext() != null) {
                e = Mvcs.getActionContext().getError();
            }
        }
    }
%>
    <h2>请求的路径: <%=(request.getAttribute("javax.servlet.forward.request_uri") + (request.getQueryString() == null ? "" : "?" + request.getQueryString())) %></h2><p/>
    <%
        if (Mvcs.getActionContext() != null) {
    %>
    <h2>请求的方法: <%=Mvcs.getActionContext().getMethod() %></h2><p/>
    <%
        }
    if (e != null) {
    %>
    <h2>异常堆栈如下:</h2><p/>
    <pre>
        <code class="lang-java">
<%
            ByteArrayOutputStream bao = new ByteArrayOutputStream();
            PrintWriter pw = new PrintWriter(bao);
            e.printStackTrace(pw);
            pw.flush();
%>
<%=Strings.escapeHtml(new String(bao.toByteArray())) %>
        </code>
    </pre>
<%
    }
%>
</div>
</body>
</html>