add 选择框查询字典内容树形列表

laws-module-system/src/main/java/com/jero/modules/system/controller/SysDictItemController.java

@@ -1,10 +1,7 @@
 package com.jero.modules.system.controller;
 
 
-import java.util.Arrays;
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import javax.servlet.http.HttpServletRequest;
@@ -135,6 +132,49 @@ public class SysDictItemController {
 		return Result.OK(jsonArray != null ? jsonArray : new JSONArray());
 	}
 
+	@ApiOperation(value = "选择框查询字典内容树形列表")
+	@GetMapping("/treeListOption")
+	public Result<JSONArray> treeListOption(SysDictItem sysDictItem,
+										   HttpServletRequest req) {
+		QueryWrapper<SysDictItem> queryWrapper = QueryGenerator.initQueryWrapper(sysDictItem, req.getParameterMap());
+		List<SysDictItem> sysDictItems = sysDictItemService.list(queryWrapper);
+		//当查询结果中有数据的父级不存在时，赋值父级id为"0"
+		List<String> idList = sysDictItems.stream().map(SysDictItem::getId).collect(Collectors.toList());
+		idList.add("0");
+		//赋值pId
+		sysDictItems.forEach(i ->{
+			String parentId = i.getParentId();
+			if (idList.contains(parentId)) {
+				i.setPId(parentId);
+			}else {
+				i.setPId("0");
+			}
+		});
+		//配置
+		TreeNodeConfig treeNodeConfig = new TreeNodeConfig();
+		// 自定义属性名 都要默认值的
+		treeNodeConfig.setWeightKey("sortOrder");
+		treeNodeConfig.setIdKey("id");
+		treeNodeConfig.setParentIdKey("pId");
+		// 最大递归深度
+		treeNodeConfig.setDeep(-1);
+		//转换器
+		List<Tree<String>> treeNodes = TreeUtil.build(sysDictItems, "0", treeNodeConfig,
+				(treeNode, tree) -> {
+					String id = treeNode.getId();
+					tree.setId(id);
+					tree.setParentId(treeNode.getPId());
+					tree.setWeight(treeNode.getSortOrder());
+					tree.setName(treeNode.getItemText());
+					tree.putExtra("key", id);
+					tree.putExtra("value", id);
+					tree.putExtra("title", treeNode.getItemText());
+				});
+
+		JSONArray jsonArray = JSONArray.parseArray(JSON.toJSONString(treeNodes,SerializerFeature.WriteMapNullValue));
+		return Result.OK(jsonArray != null ? jsonArray : new JSONArray());
+	}
+
 	/**
 	 * @功能：新增
 	 * @return