java中org.apache.commons.digester类用法
xml文件内容：<?xml version="1.0" encoding="UTF-8"?>
<channels>
<channel switchTime="20080101000101" k="1.07" n="6" s="55" channelId="0404" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0405" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0406" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0407" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0408" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0409" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0433" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0434" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0437" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0435" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0438" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0439" channelName="xxxx.xxxx.xxx.cn"/>
<channel switchTime="20080301010101" k="1.07" n="6" s="55" channelId="0440" channelName="xxxx.xxxx.xxx.cn"/>
</channels>
import org.apache.commons.digester.Digester;
Digester digester = new Digester();
//此方法作用是是否对XML文档进行DTD验证
digester.setValidating(false);
//addObjectCreate的作用是：当遇见channels元素的时候，产生一个java.util.ArrayList对象
digester.addObjectCreate("channels", "java.util.ArrayList");
//addSetProperties作用是：对channels元素所含的属性赋值(即下面channels/channel中的对象值)
digester.addSetProperties("channels");
//当遇见channels/channel元素的时候，产生一个com.chinacache.config.model.ChannelSwitch对象
digester.addObjectCreate("channels/channel","com.chinacache.config.model.ChannelSwitch");
//对channels/channel元素所含的属性赋值给ChannelSwitch对象
digester.addSetProperties("channels/channel");
//当再一次遇见 channels下的channel元素的时候，调用ArrayList类的add()方法,add：com.chinacache.config.model.ChannelSwitch对象
digester.addSetNext("channels/channel", "add","com.chinacache.config.model.ChannelSwitch");
调用：
try {
List channelList = (List) digester
.parse(ChannelSwitchInfoImpl.class
.getResourceAsStream(Constants.PATH_CHANNEL_SWITCH));
for (int i = 0; i < channelList.size(); i++) {
ChannelSwitch channelSwitch = (ChannelSwitch) channelList
.get(i);
this.channelSwitchs.put(channelSwitch.getChannelName(),
channelSwitch);
this.channelSwitchsSavedById.put(channelSwitch.getChannelId(),
channelSwitch);
}
} catch (IOException e) {
logger.error("load channelswitch.xml error.", e);
} catch (SAXException e) {
logger.error("load channelswitch.xml error.", e);
}
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