?? 0803-0205.htm
字號:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0071)http://162.105.170.55/ASPs/GetLearningArticleTemp.asp?section=0803-0205 -->
<HTML><HEAD><TITLE>XML中國論壇 - 初學進階 - 8.3.2.5 輸出異常</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<STYLE type=text/css>TABLE {
FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"
}
.pt9 {
FONT-SIZE: 9pt; COLOR: black; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"
}
.pt10 {
FONT-WEIGHT: 700; FONT-SIZE: 10pt; LINE-HEIGHT: 18pt; FONT-FAMILY: "宋體"
}
.TempOutline {
FONT-SIZE: 9pt; MARGIN-LEFT: 15pt; COLOR: #666666; TEXT-INDENT: -28pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.TempOutline1 {
FONT-SIZE: 9pt; MARGIN-LEFT: 24pt; COLOR: #666666; TEXT-INDENT: -36pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.Outline {
FONT-SIZE: 9pt; MARGIN-LEFT: 15pt; TEXT-INDENT: -28pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.Outline1 {
FONT-SIZE: 9pt; MARGIN-LEFT: 24pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.Outline11 {
FONT-SIZE: 9pt; MARGIN-LEFT: 38pt; TEXT-INDENT: -50pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.passage0 {
FONT-SIZE: 9pt; MARGIN-LEFT: 15pt; TEXT-INDENT: -28pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.passage1 {
FONT-SIZE: 9pt; MARGIN-LEFT: 24pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.passage11 {
FONT-SIZE: 9pt; MARGIN-LEFT: 38pt; TEXT-INDENT: -50pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
.passage111 {
FONT-SIZE: 9pt; MARGIN-LEFT: 51pt; TEXT-INDENT: -64pt; LINE-HEIGHT: 15pt; FONT-FAMILY: "宋體"; TEXT-DECORATION: none
}
</STYLE>
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY vLink=#000000 aLink=#000000 link=#000000 leftMargin=0 topMargin=0
onload=""><!-- 以下為主體內容 -->
<div align="center">
<center>
<TABLE width="100%" border=0 style="border-collapse: collapse" bordercolor="#111111" cellpadding="0" cellspacing="0">
<TBODY>
<TR vAlign=top>
<TD width=28 rowSpan=2></TD>
<TD vAlign=center width="530">
<p align="center"><IMG height=33
src="image/title_learner.gif" width=226></TD>
<TD width=28 rowSpan=2></TD>
</TR>
<TR vAlign=top>
<TD width="530"><!-- 正文內容 -->
<DIV class=pt10><B>8.3.2.5 輸出異常</B></DIV>
<DIV></DIV><BR>
<DIV class=pt9>
<P>每個DocumentHandler接口的方法都會產生SAXExceptions異常，但不會產生寫文件時可能發生的IOExceptions異常。可是，由于SAXException可以封裝其他異常，因此可以通過一個自定義的方法來處理異常。下面代碼的黑體部分就是用來處理異常的函數：</P>
<DIV align=center>
<CENTER>
<TABLE width="80%" border=1>
<TBODY>
<TR>
<TD width="100%">public void characters (char buf [], int offset,
int Len)<BR>throws SAXException{ }<BR><BR><STRONG>private void emit
(String s)<BR>throws SAXException{<BR>try {<BR> out.write
(s);<BR> out.flush ();<BR>} catch (IOException e) {<BR>
throw new SAXException ("I/O error",
e);<BR>}<BR>}</STRONG><BR>...</TD></TR></TBODY></TABLE></CENTER></DIV>
<P>當emit方法被調用時，所有輸入/輸出錯誤都被封裝在了SAXException中，并由SAX分析器來處理SAXException異常。</P></DIV>
<P></P>
<P></P></TD></TR></TBODY></TABLE>
</center>
</div>
<P></P>
<P>
<P></P></BODY></HTML>?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -