XStream映射集合
XStream映射集合
提问于 2011-04-02 02:24:47
我尝试使用XStream将xml映射到java对象。但这里有一个bug。
public class Concepts {
List<Concept> conceptList = new ArrayList<Concept>();
}
public class Concept {
String id;
String name;
String table;
List<Child> childList= new ArrayList<Child>();
}
public class Child {
String id;
String name;
String childTable;
String rel;
}xml是
<?xml version="1.0" encoding="UTF-8"?>
<concepts>
<concept id="1234" name="student" table="student">
<childList>
<child id="" name="Address" childTable="address" rel="one-to-one"/>
<child id="" name="Score" childTable="score" rel="one-to-many"/>
</childList>
</concept>
<concept id="12343" name="address" table="address"/>
<concept id="123433" name="store" table="score"/>
</concepts>我的映射是
xstream.alias("concepts", Concepts.class);
xstream.alias("concept", Concept.class);
xstream.alias("child", Child.class);
xstream.useAttributeFor("name", String.class);
xstream.useAttributeFor("id", String.class);
xstream.useAttributeFor("table", String.class);
xstream.useAttributeFor("childTable", String.class);
xstream.useAttributeFor("rel", String.class);
// collection
xstream.addImplicitCollection(Concepts.class, "conceptList","concept", Concept.class);
xstream.addImplicitCollection(Concept.class, "childList", "childList", Child.class); //bug最后一行有bug。它无法映射子数组列表。我不知道虫子在哪里。
谢谢。
回答 1
Stack Overflow用户
发布于 2013-01-17 16:32:10
试试这个..。
我想这一定是一种...
public class test {
public class Concepts {
List<Concept> conceptList = new ArrayList<Concept>();
}
public class Concept {
String id;
String name;
String table;
ChildList childList;
}
public class ChildList {
List<Child> childList = new ArrayList<Child>();
}
public class Child {
String id;
String name;
String childTable;
String rel;
}
public static void main(String[] args) {
XStream xstream = new XStream();
xstream.alias("concepts", Concepts.class);
xstream.alias("concept", Concept.class);
xstream.alias("ChildList", ChildList.class);
xstream.alias("child", Child.class);
xstream.aliasAttribute(Concept.class, "id", "id");
xstream.aliasAttribute(Concept.class, "name", "name");
xstream.aliasAttribute(Concept.class, "table", "table");
xstream.aliasAttribute(Child.class, "id", "id");
xstream.aliasAttribute(Child.class, "name", "name");
xstream.aliasAttribute(Child.class, "childTable", "childTable");
xstream.aliasAttribute(Child.class, "rel", "rel");
xstream.addImplicitCollection(ChildList.class, "childList");
xstream.addImplicitCollection(Concepts.class, "conceptList");
Object fromXML = xstream.fromXML(getmess());
for (Concept string : ((Concepts) fromXML).conceptList) {
System.out.println(string.id + " " + string.name + " " + string.table);
if (string.childList != null) {
for (Child string1 : string.childList.childList) {
if (string1 != null) {
System.out.println(" " + string1.id + " " + string1.name + " " + string1.childTable + " " + string1.rel);
}
}
}
}
}
static String getmess() {
return "<concepts>"
+ "<concept id=\"1234\" name=\"student\" table=\"student\">"
+ "<childList>"
+ "<child id=\"1\" name=\"Address\" childTable=\"address\" rel=\"one-to-one\"/>"
+ "<child id=\"2\" name=\"Score\" childTable=\"score\" rel=\"one-to-many\"/>"
+ "</childList>"
+ "</concept>"
+ "<concept id=\"12343\" name=\"address\" table=\"address\"/>"
+ "<concept id=\"123433\" name=\"store\" table=\"score\"/>"
+ "</concepts>";
}}
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/5517286
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