webwork统一处理异常

火焰男 — Tue, 23 May 2006 05:02:00 GMT

webwork提供了异常的统一拦截机制，只需要在xwork.xml中写如下代码

<interceptor name="exception" class="com.opensymphony.xwork.interceptor.ExceptionMappingInterceptor"/>
             <global-results>
   <result name="myDaoExceptionPage" type="dispatcher">
    <param name="location">/WEB-INF/vm/common/wafExceptionPage.jspparam>
   result>
   <result name="myServiceExceptionPage" type="dispatcher">
    <param name="location">/WEB-INF/vm/common/wafExceptionPage.jspparam>
   result>
   <result name="myActionExceptionPage" type="dispatcher">
    <param name="location">/WEB-INF/vm/common/wafExceptionPage.jspparam>
   result>
   <result name="myExceptionPage" type="dispatcher">
    <param name="location">/WEB-INF/vm/common/wafExceptionPage.jspparam>
   result>
   <result name="exceptionPage" type="dispatcher">
    <param name="location">/WEB-INF/vm/common/exceptionPage.jspparam>
    global-results>

  <global-exception-mappings>
     <exception-mapping name="exceptionPage" exception="java.lang.Exception" result="exceptionPage"/>
   <exception-mapping name="exceptionPage" exception="net.jite.waf.persistent.exception.MyException" result="myExceptionPage"/>
   <exception-mapping name="exceptionPage" exception="net.jite.waf.persistent.exception.MyDaoException" result="myDaoExceptionPage"/>
   <exception-mapping name="exceptionPage" exception="net.jite.waf.persistent.exception.MyServiceException" result="myServiceExceptionPage"/>
   <exception-mapping name="exceptionPage" exception="net.jite.waf.persistent.exception.MyActionException" result="myActionExceptionPage"/>
  global-exception-mappings>

其中有自己定义的相关异常类，以及返回界面，返回界面代码如下：

<%@ page contentType="text/html;charset=GBK" %>
<%@ page import="com.opensymphony.xwork.util.OgnlValueStack"%>
<%@ page import="com.opensymphony.xwork.ActionContext"%>
<%@ page import="com.opensymphony.xwork.interceptor.ExceptionHolder"%>
<%@ page import="net.WAFException"%>
<%@ page import="net.dao.MyDaoException"%>
<%@ page import="net.service.MyServiceException"%>
<%@ page import="netaction.MyActionException"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Exception!title>
head>

<body>
<%
    OgnlValueStack s = ActionContext.getContext().getValueStack();
    ExceptionHolder e;
    String s1 = new String("");;
    String name = new String("");
    for(int i = s.size();i>0;i--){
        Object obj = s.pop();
        if(obj instanceof ExceptionHolder){
            e = (ExceptionHolder)obj;
            Object o = e.getException();
            if(o instanceof MyException){
                MyException we = (MyException)o;
                name = we.getExceptionName();
            }else if(o instanceof MyDaoException){
                MyDaoException we = (MyDaoException)o;
                name = we.getExceptionName();
            }
            else if(o instanceof MyServiceException){
                MyServiceException we = (MyServiceException)o;
                name = we.getExceptionName();
            }
            else if(o instanceof MyActionException){
                MyActionException we = (MyActionException)o;
                name = we.getExceptionName();
            }
            s1 =e.getExceptionStack();
            break;
        }
    }
%>
<table width="400" align="center" valign="middle" border="1" cellspacing="2" cellpadding="2">
<tr><td bgcolor="blue" align="center" height="30" style="font-size:9pt;">
    <font color="white"><%=name%>font>
td>tr>
<tr><td>
<H2>错误详细信息:H2>
<%=s1%><br>
td>
tr>
<tr><td align="center">
<input type=button name=return value=返回 onclick="javascript:history.go(-1);">
td>tr>
table>
body>
html>

火焰男 2006-05-23 13:02 发表评论

用JS生成WORD

火焰男 — Mon, 17 Apr 2006 08:15:00 GMT

最近项目中碰到了要自动生成WORD的问题，开始也去找了些开源的东西，比如JACOB，但是它存在一些缺陷。例如它要求JDK在1.4以下，并且还要在设置PATH，比较麻烦，所以最后决定通过客户端的JS来实现需求。
下面是个简单的例子：

<HTML>
  <HEAD>
    <title>
    title>
  HEAD>
<body>
<form id="form">
<table id = "PrintA" width="100%" border="1" cellspacing="0" cellpadding="0" >
<TR style="text-align : center;">
<TD>单元格1TD>
<TD>单元格2TD>
<TD>单元格3TD>
<TD>单元格4TD>
TR>
<TR>
<TD colSpan=4 style="text-align : center;"><font color="red" face="Verdana">单元格合并FONT>TD>
TR>
TABLE>
<BR>
<table id = "Test" width="100%">
<tr>
<td><font color="red">testFONT>td>
tr>
table>
form>
<input type="button" onclick="javascript:MakeWord();" value="导出页面到Word">
<SCRIPT LANGUAGE="javascript">
function MakeWord()
{
  var word = new ActiveXObject("Word.Application");
  var doc = word .documents.open("http://jazzy:8080/slide/files/jazzy/test.doc");     //此处为打开已有的模版
或者var doc = word .Documents.Add("",0,1);//不打开模版直接加入内容
  var oRange =doc .Range(5,6);
  var sel = document.body.createTextRange();
  sel.moveToElementText(form);//此处form是页面form的id
  sel.select();
  sel.execCommand("Copy");
  oRange.Paste();
  word .Application.Visible = true;
  doc .saveAs("http://jazzy:8080/slide/files/jazzy/ba.doc");     //存放到指定的位置
}
SCRIPT>
body>html>

火焰男 2006-04-17 16:15 发表评论

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webwork统一处理异常

用JS生成WORD