伙计们，
我不熟悉使用 JAXB 编组和解组对象的世界。
我正在尝试编组一个可以最好地说是地图列表的对象。
我试图达到的最终结果如下：
<parametricSearchResult>
<allFilters>
<name>custom_year</name>
<name>abcd</name>
</allFilters>
<allFields>
<field>
<name>custom_year</name>
<value count="10">2012</value>
<value count="8">2011</value>
</field>
<field>
<name>abcd</name>
<value count="8">2011</value>
</field>
</allFields>
</parametricSearchResult>
使用我编写的代码，我将其作为输出
<parametricSearchResult>
<allFilters>
<name>custom_year</name>
<name>abcd</name>
</allFilters>
<allFields>
<allFilters>
<mName>test</mName>
<field>
<value count="10">
<mValue>2012</mValue>
</value>
<value count="8">
<mValue>2011</mValue>
</value>
</field>
<name>test</name>
</allFilters>
<allFilters>
<mName>test</mName>
<field>
<value count="4">
<mValue>2011</mValue>
</value>
</field>
<name>test</name>
</allFilters>
</allFields>
</parametricSearchResult>
我的代码如下
参数搜索结果
@XmlRootElement(name = "parametricSearchResult")
public class ParametricSearchResult {
private final List<String> mFilterFields = new ArrayList<String>();
private final List<Map<String, Integer>> mFiltersToCountsMap = new ArrayList<Map<String, Integer>>();
public void setFilterFields(List<String> fields) {
mFilterFields.addAll(fields);
}
@XmlElementWrapper(name = "allFilters")
@XmlElement(name = "name")
public List<String> getFilterFields() {
return mFilterFields;
}
@XmlElement(name = "allFields")
@XmlJavaTypeAdapter(JAXBParametricSearchResultSerializer.class)
public List<Map<String, Integer>> getValuesAndCounts() {
return mFiltersToCountsMap;
}
public void addFilterFieldsAndCounts(final String field, final String filterValue, final Integer count) {
final int index = mFilterFields.indexOf(field.toLowerCase());
if (index == -1) {
mFilterFields.add(field.toLowerCase());
HashMap<String, Integer> mapValuesToCounts = new HashMap<String, Integer>();
mapValuesToCounts.put(filterValue.toLowerCase(), Integer.valueOf(count));
mFiltersToCountsMap.add(mapValuesToCounts);
} else {
Map<String, Integer> mapValuesToCounts = mFiltersToCountsMap.get(index);
mapValuesToCounts.put(filterValue.toLowerCase(), Integer.valueOf(count));
}
}
public Map<String, Integer> getFilterValueToCountMap(String filterName) {
final int index = mFilterFields.indexOf(filterName.toLowerCase());
if (index == -1) {
return new HashMap<String, Integer>();
} else {
return mFiltersToCountsMap.get(index);
}
}
}
参数搜索结果类型
public class ParametricSearchResultType {
private final List<ParametricFilterType> allFilters = new ArrayList<ParametricFilterType>();
@XmlElement
public List<ParametricFilterType> getFilters() {
return allFilters;
}
public void setFilter(final ParametricFilterType data) {
allFilters.add(data);
}
}
参数过滤器类型
public class ParametricFilterType {
private String mName = "";
private final List<ParametricMapEntryType> mFilterAllEntries = new ArrayList<ParametricMapEntryType>();
@XmlElement(name = "name")
public String getName() {
return mName;
}
public void setName(final String data) {
mName = data;
}
public void setAllFilters(final ParametricMapEntryType data) {
mFilterAllEntries.add(data);
}
@XmlElementWrapper(name = "field")
@XmlElement(name = "value")
public final List<ParametricMapEntryType> getAllFilterEntries() {
return mFilterAllEntries;
}
}
参数映射条目类型
public class ParametricMapEntryType {
@XmlValue
public String mValue;
@XmlAttribute(name = "count")
public Integer mCount;
}
JAXB参数搜索结果序列化器
public class JAXBParametricSearchResultSerializer extends XmlAdapter<ParametricSearchResultType, List<Map<String, Integer>>> {
@Override
public ParametricSearchResultType marshal(final List<Map<String, Integer>> data) throws Exception {
ParametricSearchResultType result = new ParametricSearchResultType();
for (Map<String, Integer> aMap : data) {
ParametricFilterType filters = new ParametricFilterType();
filters.mName = "test";
for (Map.Entry<String, Integer> anEntry : aMap.entrySet()) {
ParametricMapEntryType entry = new ParametricMapEntryType();
entry.mValue = anEntry.getKey();
entry.mCount = anEntry.getValue();
filters.mFilterAllEntries.add(entry);
}
result.allFilters.add(filters);
}
return result;
}
@Override
public List<Map<String, Integer>> unmarshal(final ParametricSearchResultType data) throws Exception {
return null;
}
}
参数搜索结果测试器
public class ParametricSearchResultTester {
ParametricSearchResult mResult;
@Before
public void setUp() throws Throwable {
mResult = new ParametricSearchResult();
mResult.addFilterFieldsAndCounts("CUSTOM_YEAR", "2012", 10);
mResult.addFilterFieldsAndCounts("CUSTOM_YEAR", "2011", 8);
mResult.addFilterFieldsAndCounts("ABCD", "2011", 4);
}
@After
public void tearDown() throws Throwable {
mResult = null;
}
@Test
public void testThatMarshallingWorks() throws Throwable {
JAXBContext context = JAXBContext.newInstance(ParametricSearchResult.class);
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.marshal(mResult, System.out);
}
}
在阅读更多文档后对代码进行了一些更改并进行了这些更改后，我最终将其作为输出
<parametricSearchResult>
<allFilters>
<name>custom_year</name>
<name>abcd</name>
</allFilters>
<allFields>
<filters>
<field>
<value count="10">2012</value>
<value count="8">2011</value>
</field>
<name>test</name>
</filters>
<filters>
<field>
<value count="4">2011</value>
</field>
<name>test</name>
</filters>
</allFields>
</parametricSearchResult>
几乎就在那里，但仍然需要对元素进行更多的清理和重新排列。不知道还能在这里做什么。