行政区划递归数据-刘弈臻

src/main/java/com/govmade/modules/system/controller/AreaController.java

+package com.govmade.modules.system.controller;
+
+import java.util.List;
+import java.util.Set;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.govmade.common.utils.R;
+import com.govmade.modules.basic.controller.AbstractController;
+import com.govmade.modules.system.entity.AreaEntity;
+import com.govmade.modules.system.service.AreaService;
+
+/**
+ * 系统管理 - 行政区划设置
+ * 
+ * @author 刘弈臻
+ * @date 2018年8月9日
+ */
+
+@RestController
+@RequestMapping("/system/area")
+public class AreaController extends AbstractController{
+     
+	@Autowired
+	private AreaService areaService;
+	
+	/**
+	 * 所有区划数据树结构
+	 */
+	@GetMapping("/allList")
+	public R allList() {
+        List<AreaEntity> data = areaService.queryAll();
+        return R.ok().put("data", data);
+	}
+	
+	/**
+	 * 保存或更新区划
+	 */
+	@PostMapping("/save")
+	public R save(AreaEntity area) {
+
+		if (null == area.getId()) {
+			if (this.areaService.checkArea(area.getName()) > 0) {
+				return R.error(area.getName() + " 已存在!");
+			}
+			
+		}
+		areaService.save(area);
+		return R.ok();
+	}
+	
+	 /**
+     * 删除、批量删除区划
+     * 
+     * @param ids
+     * @return
+     */
+	@DeleteMapping("/delete")
+    public R deleteArea(@RequestParam Set<Long> ids) {
+
+        areaService.deleteBatchIds(ids);
+        return R.ok();
+    }
+	
+}

src/main/java/com/govmade/modules/system/dao/AreaDao.java

+package com.govmade.modules.system.dao;
+
+import org.apache.ibatis.annotations.Mapper;
+
+import com.baomidou.mybatisplus.mapper.BaseMapper;
+import com.govmade.modules.system.entity.AreaEntity;
+
+/**
+ * 系统管理 - 行政区划设置
+ * 
+ * @author 刘弈臻
+ * @date 2018年8月9日
+ */
+@Mapper
+public interface AreaDao extends BaseMapper<AreaEntity> {
+
+	
+}

src/main/java/com/govmade/modules/system/entity/AreaEntity.java

+package com.govmade.modules.system.entity;
+
+import java.util.List;
+
+import com.baomidou.mybatisplus.annotations.TableField;
+import com.baomidou.mybatisplus.annotations.TableName;
+import com.govmade.modules.basic.entity.BaseEntity;
+
+/**
+ * 系统管理 - 行政区划设置
+ * 
+ * @author 刘弈臻
+ * @date 2018年8月9日
+ */
+@TableName("system_areas")
+public class AreaEntity extends BaseEntity<Long>{
+	
+	private static final long serialVersionUID = 1L;
+	
+	private Long pid; //上级区划ID
+	
+	private String name; //区划名称
+	
+	private String code; //区划代码
+	
+	private Integer level; //区划级别
+	
+	private Long weight; //权重
+	
+	@TableField(exist=false)
+	private List<AreaEntity> children;
+	
+	
+
+	public Long getPid() {
+		return pid;
+	}
+
+	public void setPid(Long pid) {
+		this.pid = pid;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public String getCode() {
+		return code;
+	}
+
+	public void setCode(String code) {
+		this.code = code;
+	}
+
+	public Integer getLevel() {
+		return level;
+	}
+
+	public void setLevel(Integer level) {
+		this.level = level;
+	}
+
+	public Long getWeight() {
+		return weight;
+	}
+
+	public void setWeight(Long weight) {
+		this.weight = weight;
+	}
+
+	public List<AreaEntity> getChildren() {
+		return children;
+	}
+
+	public void setChildren(List<AreaEntity> children) {
+		this.children = children;
+	}
+	
+    
+}

src/main/java/com/govmade/modules/system/service/AreaService.java

+package com.govmade.modules.system.service;
+
+import java.util.List;
+
+import com.baomidou.mybatisplus.service.IService;
+import com.govmade.modules.system.entity.AreaEntity;
+
+/**
+ * 系统管理 - 行政区划设置
+ * 
+ * @author 刘弈臻
+ * @date 2018年8月9日
+ */
+public interface AreaService extends IService<AreaEntity>{
+	
+	/**
+	 * 查询所有数据树结构
+	 */
+	List<AreaEntity> queryAll();
+	
+	/**
+	 * 保存或修改行政区划
+	 */
+	void save(AreaEntity area);
+	
+	/**
+	 * 删除行政区划
+	 */
+	void deleteBatch(Long[] areaIds);
+	
+
+    /**
+	 * 行政区划查重
+	 */
+	Integer checkArea(String name);
+
+
+}

src/main/java/com/govmade/modules/system/service/impl/AreaServiceImpl.java

+package com.govmade.modules.system.service.impl;
+
+import java.util.List;
+
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.mapper.EntityWrapper;
+import com.baomidou.mybatisplus.service.impl.ServiceImpl;
+import com.google.common.collect.Lists;
+import com.govmade.modules.system.dao.AreaDao;
+import com.govmade.modules.system.entity.AreaEntity;
+import com.govmade.modules.system.service.AreaService;
+
+/**
+ * 系统管理 - 行政区划设置
+ * 
+ * @author 刘弈臻
+ * @date 2018年8月9日
+ */
+@Service("AreaService")
+public class AreaServiceImpl extends ServiceImpl<AreaDao,AreaEntity> implements AreaService{
+     
+	@Override
+    public List<AreaEntity> queryAll() {
+		
+		List<AreaEntity> areaList = this.selectList(new EntityWrapper<AreaEntity>().eq("state", 1));
+		
+        List<AreaEntity> aTreeList = buildAreaTree(areaList, 0L);
+
+        return aTreeList;
+    }
+	
+	
+/**
+ *递归方法
+ */
+	 private List<AreaEntity> buildAreaTree(List<AreaEntity> list, long id) {
+	        List<AreaEntity> aList = Lists.newArrayList();
+
+	        for (AreaEntity a : list) {
+	            if (id == a.getPid()) {
+	                a.setChildren(buildAreaTree(list, a.getId()));
+	                aList.add(a);
+	            }
+	        }
+	        return aList;
+	    }
+		
+	
+	@Override
+	public void save(AreaEntity area) {
+		super.insertOrUpdate(area);
+	}
+	
+	@Override
+	public void deleteBatch(Long[] areaIds) {
+		// TODO Auto-generated method stub
+	}
+	
+	@Override
+	public Integer checkArea(String name) {
+		return super.selectCount(new EntityWrapper<AreaEntity>().eq("name",name));
+	}
+	
+}