Hello Mr.J——WebService传递Map类型

  上篇博客提到了，WebService不能传递Map类型的数据，然而我还是找到了一种方法可以传过去，用的就是JDK自带的适配器。

  比如，上篇博客中，我的代码出现了这样一段。

 @WebMethod  
    @XmlJavaTypeAdapter(MapAdapter.class)  
    @WebResult(partName = "return")  
    Map<String, Object> queryProfessionalByCollageId(  
            @WebParam(name = "collageId") String collageId, @WebParam(name = "dataBaseName") String dataBaseName, @WebParam(name = "name") String name);  
  

@XmlType(name = "MapConvertor")
@XmlAccessorType(XmlAccessType.FIELD)
public class MapAdapter extends XmlAdapter<MapConvertor, Map<String, Object>> {

    @Override
    public MapConvertor marshal(Map<String, Object> map) throws Exception {
        MapConvertor convertor = new MapConvertor();
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            MapConvertor.MapEntry e = new MapConvertor.MapEntry(entry);
            convertor.addEntry(e);
        }
        return convertor;
    }

    @Override
    public Map<String, Object> unmarshal(MapConvertor map) throws Exception {
        Map<String, Object> result = new HashMap<String, Object>();
        for (MapConvertor.MapEntry e : map.getEntries()) {
            result.put(e.getKey(), e.getValue());
        }
        return result;
    }
}

@XmlType(name = "MapConvertor")
@XmlAccessorType(XmlAccessType.FIELD)
public class MapConvertor {
    private List<MapEntry> entries = new ArrayList<MapEntry>();

    public void addEntry(MapEntry entry) {
        entries.add(entry);
    }

    public void setEntries(List<MapEntry> entries) {
        this.entries = entries;
    }

    public List<MapEntry> getEntries() {
        return entries;
    }

    public static class MapEntry {

        private String key;

        private Object value;

        public MapEntry() {
            super();
        }

        public MapEntry(Map.Entry<String, Object> entry) {
            super();
            this.key = entry.getKey();
            this.value = entry.getValue();
        }

        public MapEntry(String key, Object value) {
            super();
            this.key = key;
            this.value = value;
        }

        public String getKey() {
            return key;
        }

        public void setKey(String key) {
            this.key = key;
        }

        public Object getValue() {
            return value;
        }

        public void setValue(Object value) {
            this.value = value;
        }
    }
}

  对这个list进行处理循环放到map里面就能和应该返回的结果一样了，下篇搞客户端的时候补代码- -。