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Implementation of organization tree based on spring spring

Controller layer code

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.chengpai.person.bean.bumenMidObject;
import com.chengpai.person.service.bumenService;
import util.tree.Node;
@Controller
public class bumenController {
 @Autowired
 private bumenService bs;
 @RequestMapping(value ="/bumen/testdata1.do")
 @ResponseBody
 public String testdata1(HttpServletRequest request, HttpServletResponse response) {
 List dataList = bs.selectAll();
//dataList.clear();
//节点列表(散列表,用于临时存储节点对象)
 HashMap nodeList = new HashMap();
//根节点
 Node root = null;
//根据结果集构造节点列表(存入散列表)
 for (Iterator it = dataList.iterator(); it.hasNext();) {
 Map dataRecord = (Map) it.next();
 Node node = new Node();
 node.id = (String) dataRecord.get("id");
 node.text = (String) dataRecord.get("text");
 node.parentId = (String) dataRecord.get("parentId");
 nodeList.put(node.id, node);
 }
//构造无序的多叉树
 Set entrySet = nodeList.entrySet();
 for (Iterator it = entrySet.iterator(); it.hasNext();) {
 Node node = (Node) ((Map.Entry) it.next()).getValue();
 if (node.parentId == null || node.parentId.equals("")) {
 root = node;
 } else {
 ((Node) nodeList.get(node.parentId)).addChild(node);
 }
 }
//root.sortChildren();
 System.out.println("["+root.toString()+"]");
 return"["+root.toString()+"]";
 }
}
Service layer code:
import java.util.List;
import com.chengpai.person.bean.bumenMidObject;
import com.chengpai.person.bean.bumen;
public interface bumenService {
 List<bumen> selectAll();
 List<Integer> listRoot();
 List<Integer> listRooti(int i);
 List<bumenMidObject> Findnodes(int i);
}

Serviceimp code:
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.chengpai.person.bean.bumenMidObject;
import com.chengpai.person.bean.bumen;
import com.chengpai.person.mapper.bumenMapper;
import com.chengpai.person.service.bumenService;
@Service("bumenService")
public class bumenServiceImp implements bumenService {
 @Autowired
 private bumenMapper bm;
 @Override
 public List selectAll() {
//TODO Auto-generated method stub
 List<bumen> listbumen= bm.selectAll();
 List dataList = new ArrayList();
 for (int i = 0; i <listbumen.size(); i++) {
 HashMap dataRecord = new HashMap();
 if(listbumen.get(i).getFid()==0){
 dataRecord.put("id", listbumen.get(i).getId()+""); 
 dataRecord.put("text", listbumen.get(i).getName()); 
 dataRecord.put("parentId", null); 
 dataList.add(dataRecord);
 }else{
 dataRecord.put("id", listbumen.get(i).getId()+""); 
 dataRecord.put("text", listbumen.get(i).getName()); 
 dataRecord.put("parentId", listbumen.get(i).getFid()+""); 
 dataList.add(dataRecord);
 }
 }
 return dataList;
 }
 @Override
 public List<Integer> listRoot() {
//TODO Auto-generated method stub
 List<Integer> listRoot= new ArrayList<Integer>();
 List<bumen> listbumen= bm.selectAll();
 for (int i = 0; i <listbumen.size(); i++) {
 if(!listRoot.contains(listbumen.get(i).getFid())){
 listRoot.add(listbumen.get(i).getFid());
 }
 }
 return listRoot;
 }
 @Override
 public List<Integer> listRooti(int i) {
//TODO Auto-generated method stub
 return null;
 }
 @Override
 public List<bumenMidObject> Findnodes(int i) {
//TODO Auto-generated method stub
 return null;
 }
}


Mapper layer code implementation
import java.util.List;
import org.apache.ibatis.annotations.Select;
import com.chengpai.person.bean.bumen;
public interface bumenMapper {
 @Select("select * from bumen")
 List<bumen> selectAll();
}
Department entity class:
public class bumen {
 private int id;
 private String name;
 private int fid;
 public int getId() {
 return id;
 }
 public void setId(int id) {
 this.id = id;
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }
 public int getFid() {
 return fid;
 }
 public void setFid(int fid) {
 this.fid = fid;
 }
}






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