Java 在digester中解析映射
我有一个XML字符串作为Java 在digester中解析映射,java,xml,apache-commons-digester,Java,Xml,Apache Commons Digester,我有一个XML字符串作为 <ShowPercentage> <SPGLevel> <Level> 1 </Level> <percentage>40</percentage> </SPGLevel> <SPGLevel> <Level> 2 </Level&
<ShowPercentage>
<SPGLevel>
<Level> 1 </Level>
<percentage>40</percentage>
</SPGLevel>
<SPGLevel>
<Level> 2 </Level>
<percentage>60</percentage>
</SPGLevel>
</ShowPercentage>
1.
40
2.
60
SPG级别是可重复的。这是一张键=级别、值=百分比的地图
我想用Digester解析这个XML。有人能帮我开始吗?可能不是你想要的,但会让你开始
我建议您使用castor映射 对于Castor映射,应遵循以下步骤:
private String fileLoadPath="conf/Configuration.xml";
private String mappingPath="conf/mapping.xml";
Mapping mapping = new Mapping();
mapping.loadMapping(mappingPath);
Configuration configuration = (Configuration)new Unmarshaller(mapping).unmarshal(fileLoadPath);
答案可能看起来像下面的代码,但我没有测试它:
public class SampleDigester
{
private Map<String, String> map = new HashMap<String, String>();
public void run() throws IOException, SAXException {
Digester digester = new Digester();
digester.push(this);
digester.addCallMethod("ShowPercentage/SPGLevel", "addKey", 2);
digester.addCallParam("ShowPercentage/SPGLevel/Level", 0);
digester.addCallParam("ShowPercentage/SPGLevel/percentage", 1);
digester.parse("input.xml");
}
public void addKey(String key, String value) {
map.put(key, value);
}
}
公共类样本消化器
{
私有映射映射=新的HashMap();
public void run()引发IOException,SAXException{
蒸煮器蒸煮器=新蒸煮器();
消化器。推(这个);
digester.addCallMethod(“ShowPercentage/SPGLevel”,“addKey”,2);
digester.addCallParam(“显示百分比/标度级别/级别”,0);
digester.addCallParam(“ShowPercentage/SPGLevel/percentage”,1);
parse(“input.xml”);
}
public void addKey(字符串键、字符串值){
map.put(键、值);
}
}
setShowPercentMap
-在助手类、字符串映射中设置此属性final String root=“root/”;
final String root= "root/";
final String out= "elementOut/";
final String in= "elementIn/";
final String id = "id";
final String NAME = "name";
String namespace = reg.getFilename();
final Digester digester = new Digester();
digester.setValidating(false);
digester.addObjectCreate(root, HashMap.class);
digester.addCallMethod(root+ out, "put", 2);
digester.addCallParam(root+ out, 0, ID);
digester.addObjectCreate(root+ out, ArrayList.class);
digester.addCallMethod(root+ out + in, "add", 1);
digester.addCallParam(root+ out + in, 0, name);
digester.addCallParam(root+ out, 1, true);
Map<String, List<String>> map = digester.<Map<String, List<String>>> parse(reg
.getInputStream());
最终字符串out=“elementOut/”;
最后一个字符串in=“elementIn/”;
最终字符串id=“id”;
最终字符串NAME=“NAME”;
String namespace=reg.getFilename();
最终蒸煮器蒸煮器=新蒸煮器();
蒸煮器。设置验证(错误);
addObjectCreate(根,HashMap.class);
消化器.添加方法(根+出,“放”,2);
digester.addCallParam(root+out,0,ID);
addObjectCreate(root+out,ArrayList.class);
消化器.添加方法(根+外+内,“添加”,1);
digester.addCallParam(root+out+in,0,name);
digester.addCallParam(root+out,1,true);
Map=消化器。解析(reg
.getInputStream());
相应的xml将键映射匹配为字符串,将值匹配为字符串列表
<root>
<elementOut id="key1">
<elementIn name="value1" />
</elementOut>
<elementOutid="key2">
<elementIn name="value1" />
<elementIn name="value2" />
</elementOut>
</root>
@Andreas\u D:我真的,真的试过了——Digester似乎使用起来既简单又快速,我们试图在我们的一个项目中使用它来进行简单的XML解析。我们花了几天时间为消化器制定合适的规则。最终证明,JAXB的使用更容易编写,而且只需5分钟。不过,也许有些情况下,我们的CD是有益的和有效的。谢谢!我本人从未使用过它,但它看起来很有前途。digester.addObjectCreate(“MerchRecomExitPopupControl/ShowPercentage”,HashMap.class);消化器添加调用方法(“MerchRecomExitPopupControl/ShowPercentage/SPGLevel”,“put”,2);digester.addCallParam(“MerchRecomExitPopupControl/ShowPercentage/SPGLevel/Level”,0);digester.addCallParam(“MerchRecomExitPopupControl/ShowPercentage/SPGLevel/percentage”,1);digester.addSetNext(“MerchRecomExitPopupControl/ShowPercentage”、“setShowPercentMap”)@user1211036:因此,我们发布了正确答案(并将其标记为已接受)@user1211036您可能是对的。我给您提建议。我已经实现了那种xml。我使用castor映射。可能将来它对您有用。这就是为什么我编写castor映射的整个步骤。@Azfar:我的意思是:
<root>
<elementOut id="key1">
<elementIn name="value1" />
</elementOut>
<elementOutid="key2">
<elementIn name="value1" />
<elementIn name="value2" />
</elementOut>
</root>