在工作中，调用第三方接口时，会解析不同的xml格式，解析xml的方式有很多，但是Digester比较简单，以下是我遇到的几种情况：

第一种情况：input=

<channelid="1"code="AHTV1"name="安徽卫视"short_name="安徽卫视"country_code="CN" station_code="AHTV"/>

解析：Digester digester = new Digester();
digester.setValidating(false);
digester.push(this);
digester.addObjectCreate("document/Metainfo", channelInfo.class);//channelInfo.class是对应的实体类；

digester.addSetProperties("document/Metainfo","id","id");
digester.addSetProperties("document/Metainfo","name","name");

digester.addSetNext("document/channel","addChannelInfo");//addChannelInfo是下面一个方法，将对象放到一个集合中；

digester.parse(new ByteArrayInputStream(input.getBytes()));

public void addChannelInfo(TvMaoChannelInfo channelInfo) {
channelInfos.add(channelInfo);
}

第二种情况：input=

<document><Metainfo><id>ec19cb38f57fb3a0</id><name>旋转的爱</name></Metainfo></document>

解析：Digester digester = new Digester();
digester.addObjectCreate("document/Metainfo",ColumnMetaInfo.class);
digester.addBeanPropertySetter("document/Metainfo/id","id");
digester.addBeanPropertySetter("document/Metainfo/name","name");

ColumnMetaInfo columnMetaInfo = (ColumnMetaInfo) digester.parse(new ByteArrayInputStream(input.getBytes()));

第三种情况：接受的xml中，第二种情况中，包含集合的：

Digester digester = new Digester();

digester.addObjectCreate("document",DramaInfo.class);//实体类
digester.addObjectCreate("document/Metainfo",DramaMetainInfo.class);//实体类

digester.addBeanPropertySetter("document/Metainfo/id","name")
digester.addSetNext("document/Metainfo","setDramaMetainInfo");//将DramaMetainInfo对象set到DramaInfo中

digester.addObjectCreate("document/episodes/section",DramaSection.class);//实体类
digester.addSetProperties("document/episodes/section","number","number");
digester.addBeanPropertySetter("document/episodes/section","content");
digester.addSetNext("document/episodes/section","addEpisodes");//将DramaSection放到集合中，并将集合set到DramaInfo中

digester.addObjectCreate("document/pictures/url",ImageInfo.class);//实体类
digester.addBeanPropertySetter("document/pictures/url","url");
digester.addSetNext("document/pictures/url","addImageInfo");/将ImageInfo放到集合中，并将集合set到DramaInfo中

DramaInfo dramaInfo = (DramaInfo) digester.parse(new ByteArrayInputStream(input.getBytes()));

其中：DramaInfo.class中包含DramaMetainInfo属性，DramaSection集合，ImageInfo集合