init

ruoyi-xq/src/main/java/com/ruoyi/xq/controller/app/SettingAppController.java

@@ -6,6 +6,7 @@ import com.ruoyi.common.core.domain.R;
 import com.ruoyi.common.enums.BusinessType;
 import com.ruoyi.xq.domain.AreaCode;
 import com.ruoyi.xq.dto.app.areacode.AreaCodeQuery;
+import com.ruoyi.xq.dto.app.areacode.AreaCodeTree;
 import com.ruoyi.xq.dto.app.setting.AgreementDTO;
 import com.ruoyi.xq.service.AgreementSettingService;
 import com.ruoyi.xq.service.AreaCodeService;
@@ -61,4 +62,12 @@ public class SettingAppController {
         return R.ok(list);
     }
 
+    @GetMapping("/areaCode/tree")
+    @Operation(summary = "获取所有省市区编码")
+    @Log(title = "获取所有省市区编码", businessType = BusinessType.OTHER, isSaveDb = false)
+    public R<List<AreaCodeTree>> areaCodeTree(){
+        List<AreaCodeTree> node = areaCodeService.tree();
+        return R.ok(node);
+    }
+
 }

ruoyi-xq/src/main/java/com/ruoyi/xq/dto/app/areacode/AreaCodeTree.java

@@ -0,0 +1,39 @@
+package com.ruoyi.xq.dto.app.areacode;
+
+import com.ruoyi.xq.domain.AreaCode;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@EqualsAndHashCode(callSuper = true)
+@Data
+public class AreaCodeTree extends AreaCode {
+
+    private Integer code;
+    /**
+     * 名字
+     */
+    private String name;
+    /**
+     * country:国家、province:省份（直辖市会在province和city显示）、city:市（直辖市会在province和city显示）、district:区县
+     */
+    private String level;
+    /**
+     * 所属上级行政区划代码
+     */
+    private Integer pcode;
+    /**
+     * 所属行政区划名字
+     */
+    private String pname;
+
+    private List<AreaCode> childrenArea;
+    public void addChild(AreaCodeTree child) {
+        if (childrenArea == null) {
+            childrenArea = new ArrayList<>();
+        }
+        childrenArea.add(child);
+    }
+}

ruoyi-xq/src/main/java/com/ruoyi/xq/service/AreaCodeService.java

@@ -3,6 +3,7 @@ package com.ruoyi.xq.service;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.ruoyi.xq.domain.AreaCode;
 import com.ruoyi.xq.dto.app.areacode.AreaCodeQuery;
+import com.ruoyi.xq.dto.app.areacode.AreaCodeTree;
 
 import java.util.List;
 
@@ -15,4 +16,7 @@ import java.util.List;
 public interface AreaCodeService extends IService<AreaCode> {
 
     List<AreaCode> listAreaCode(AreaCodeQuery query);
+
+    List<AreaCodeTree> tree();
+
 }

ruoyi-xq/src/main/java/com/ruoyi/xq/service/impl/AreaCodeServiceImpl.java

@@ -3,13 +3,17 @@ package com.ruoyi.xq.service.impl;
 import com.baomidou.mybatisplus.core.toolkit.StringUtils;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.common.utils.BeanConvertUtil;
 import com.ruoyi.xq.domain.AreaCode;
 import com.ruoyi.xq.dto.app.areacode.AreaCodeQuery;
+import com.ruoyi.xq.dto.app.areacode.AreaCodeTree;
 import com.ruoyi.xq.mapper.AreaCodeMapper;
 import com.ruoyi.xq.service.AreaCodeService;
 import org.springframework.stereotype.Service;
 
-import java.util.List;
+import java.util.*;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 /**
  * 行政区划Service业务层处理
@@ -27,4 +31,27 @@ public class AreaCodeServiceImpl extends ServiceImpl<AreaCodeMapper,AreaCode> im
                 .eq(StringUtils.isNotBlank(query.getLevel()),AreaCode::getLevel,query.getLevel()));
         return list;
     }
+
+    @Override
+    public List<AreaCodeTree> tree() {
+        List<AreaCode> list = this.list();
+        List<AreaCodeTree> nodeList = BeanConvertUtil.convertListTo(list, AreaCodeTree::new);
+        Map<Integer, AreaCodeTree> nodeMap = new HashMap<>();
+        Set<AreaCodeTree> roots = new HashSet<>();
+        // 遍历列表构建节点映射表
+        for (AreaCodeTree node : nodeList) {
+            nodeMap.put(node.getCode(), node);
+            if (node.getPcode() == 0 || !nodeMap.containsKey(node.getPcode())) {
+                roots.add(node);
+            }
+        }
+        // 建立父子关系
+        for (AreaCodeTree node : nodeList) {
+            if (nodeMap.containsKey(node.getPcode())) {
+                AreaCodeTree parentNode = nodeMap.get(node.getPcode());
+                parentNode.addChild(node);
+            }
+        }
+        return new ArrayList<>(roots);
+    }
 }