基于SSM的组织树的实现

基于SpringMvc的组织树的实现

Controller 层代码

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;@Controllerpublic class bumenController {@Autowiredprivate bumenService bs;@RequestMapping(value = "/bumen/testdata1.do")@ResponseBodypublic 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层代码：

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层代码：

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 {@Autowiredprivate bumenMapper bm;@Overridepublic List selectAll() {// TODO Auto-generated method stubList<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;}@Overridepublic List<Integer> listRoot() {// TODO Auto-generated method stubList<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;}@Overridepublic List<Integer> listRooti(int i) {// TODO Auto-generated method stubreturn null;}@Overridepublic List<bumenMidObject> Findnodes(int i) {// TODO Auto-generated method stubreturn null;}}

Mapper 层代码实现

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();}

部门实体类：

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;}}