@Data
  

  public class AreaTree implements java.io.Serializable{
  

  private static final long serialVersionUID = 9041919159007171464L;
  

  public static String[] excludesProperties = {"parent"};
  

  private String id;
  

  private String text;
  

  private String parentId;
  

  private AreaTree parent;
  

  private List<AreaTree> children;
  

  }
 

  import java.util.ArrayList;
  

  import java.util.Arrays;
  

  import java.util.HashSet;
  

  import java.util.List;
  

  import java.util.Set;
  

  

  import org.hibernate.collection.internal.PersistentSet;
  

  import org.junit.Test;
  

  

  import com.alibaba.fastjson.JSON;
  

  import com.alibaba.fastjson.serializer.PropertyFilter;
  

  import com.alibaba.fastjson.serializer.SerializerFeature;
  

  

  public class TestAreaTree {
  

  @Test
  

  public void testList(){
  

  List<AreaTree> list = initList();//组织测试数据
  

  AreaTree root = list.get(0);//根节点
  

  for (AreaTree areaTree : list) {//遍历集合
  

  addChild(root,areaTree);
  

  }
  

  System.out.println(toJsonByFilter(root, null, AreaTree.excludesProperties));
  

  }
  

  private void addChild(AreaTree root, AreaTree areaTree) {
  

  if(!areaTree.equals(root)){//不是根节点，开始递归
  

  if(root.getId().equals(areaTree.getParentId())){
  

  List<AreaTree> children = root.getChildren();
  

  if(children == null){
  

  children = new ArrayList<AreaTree>();
  

  }
  

  children.add(areaTree);
  

  root.setChildren(children);
  

  }else{
  

  List<AreaTree> children = root.getChildren();
  

  if(children != null){
  

  for(AreaTree aAreaTree : children){
  

  addChild(aAreaTree,areaTree);
  

  }
  

  root.setChildren(children);
  

  }
  

  }
  

  }
  

  }
  

  private List<AreaTree> initList(){
  

  String[][] arrArr = {{"0008","全省",null},{"000801","省本级","0008"},{"000802","北京市","0008"},{"00080201","通州区","000802"},{"00080202","海淀区","000802"}};
  

  List<AreaTree> list = new ArrayList<AreaTree>();
  

  for(String[] arr : arrArr){
  

  AreaTree areaTree = new AreaTree();
  

  areaTree.setId(arr[0]);
  

  areaTree.setText(arr[1]);
  

  areaTree.setParentId(arr[2]);
  

  list.add(areaTree);
  

  }
  

  return list;
  

  }
  

  /**
  

  * 将对象转换成JSON字符串
  

  * @param object 待转换对象
  

  * @param includesProperties 转换json包含的属性
  

  * @param excludesProperties 转换json排除的属性
  

  * @return json字符串
  

  */
  

  private String toJsonByFilter(Object object, String[] includesProperties, String[] excludesProperties) {
  

  FastjsonFilter filter = new FastjsonFilter();// excludes优先于includes
  

  if (excludesProperties != null && excludesProperties.length > 0) {
  

  filter.getExcludes().addAll(Arrays.<String> asList(excludesProperties));
  

  }
  

  if (includesProperties != null && includesProperties.length > 0) {
  

  filter.getIncludes().addAll(Arrays.<String> asList(includesProperties));
  

  }
  

  // 使用SerializerFeature.WriteDateUseDateFormat特性来序列化日期格式的类型为yyyy-MM-dd hh24:mi:ss
  

  // 使用SerializerFeature.DisableCircularReferenceDetect特性关闭引用检测和生成
  

  String json = JSON.toJSONString(object, filter, SerializerFeature.WriteDateUseDateFormat, SerializerFeature.DisableCircularReferenceDetect);
  

  return json;
  

  }
  

  class FastjsonFilter implements PropertyFilter {
  

  

  private final Set<String> includes = new HashSet<String>();
  

  private final Set<String> excludes = new HashSet<String>();
  

  

  public Set<String> getIncludes() {
  

  return includes;
  

  }
  

  

  public Set<String> getExcludes() {
  

  return excludes;
  

  }
  

  

  @Override
  

  public boolean apply(Object source, String name, Object value) {
  

  if (value != null && (value instanceof PersistentSet)) {// 避免hibernate对象循环引用，一切Set属性不予序列化
  

  return false;
  

  }
  

  if (excludes.contains(name)) {
  

  return false;
  

  }
  

  if (excludes.contains(source.getClass().getSimpleName() + "." + name)) {
  

  return false;
  

  }
  

  if (includes.size() == 0 || includes.contains(name)) {
  

  return true;
  

  }
  

  if (includes.contains(source.getClass().getSimpleName() + "." + name)) {
  

  return true;
  

  }
  

  return false;
  

  }
  

  

  }
  

  }