java如何将json类型的文件夹目录转换成可直接插入数据库的树形对象

 上篇文章为如何将文件夹遍历成yml的结构,并转成json字符串,本篇主要讲解如何将转换后的字符串(不规则对象)解析成可直接插入数据库的树形对象。

上篇文章地址:java 遍历文件夹目录树形结构并在控制台输出且保存到本地文件(生成可直接解析的yml文件)_再写一行代码就下班的博客-CSDN博客

public class JsonTest {
    public static void main(String[] args) {


        String json = "[n" +
                "  {n" +
                "    "G": [n" +
                "      {n" +
                "        "work": [n" +
                "          {n" +
                "            "1231231123": [n" +
                "              {n" +
                "                "项目": [n" +
                "                  {n" +
                "                    "11项目": [n" +
                "                      {n" +
                "                        "文档": [n" +
                "                          {n" +
                "                            "接口": [n" +
                "                              "1.png",n" +
                "                              "2.png",n" +
                "                              "3.png",n" +
                "                              "4.png",n" +
                "                              "5.png"n" +
                "                            ]n" +
                "                          },n" +
                "                          {n" +
                "                            "odersql": [n" +
                "                              "12323.png",n" +
                "                              "23312312.png",n" +
                "                              "212.png",n" +
                "                              "1222.png",n" +
                "                              "123WE.png",n" +
                "                              "W.png",n" +
                "                              "1.png",n" +
                "                              "121DD.png",n" +
                "                              "QWEQ.png",n" +
                "                              "QWE.png",n" +
                "                              "6_getUnhandle_getChangeOrderTrend.png",n" +
                "                              "2231SS.png",n" +
                "                              "122是.png",n" +
                "                              "123.png"n" +
                "                            ]n" +
                "                          },n" +
                "                          "字典(1).xlsx",n" +
                "                          "命令.xlsx",n" +
                "                          "项汇总.docx",n" +
                "                          "流程图.png",n" +
                "                          "使用手册doc.doc"n" +
                "                        ]n" +
                "                      }n" +
                "                    ]n" +
                "                  }n" +
                "                ]n" +
                "              }n" +
                "            ]n" +
                "          }n" +
                "        ]n" +
                "      }n" +
                "    ]n" +
                "  }n" +
                "]";

        try {
            JSONArray jsonArray = new JSONArray(json);//将对象转换成json数组
            HashSet array = getArray(jsonArray, null);//递归封装tree
            for (FileNode fileNode : array) {
                System.out.println("fileNode--->>>" + fileNode);
            }
            System.out.println();
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    private static HashSet getArray(JSONArray jsonArray, String parentId) {

        int length = jsonArray.length();
        HashSet hashSet = new HashSet<>();
        // ArrayList list = new ArrayList<>();
        for (int i = 0; i < length; i++) {//变量每个文件夹
            FileNode fileNode = new FileNode();
            fileNode.setParentCode(parentId);
            String code = UUID.randomUUID().toString();
            fileNode.setCode(code);
            try {
                JSONObject jsonObject = (JSONObject) jsonArray.get(i);//文件夹
                if (jsonObject.keys().hasNext()) {
                    String nodeName = (String) jsonObject.keys().next();
                    fileNode.setName(nodeName);
                    System.out.println(nodeName);
                    JSONArray o = (JSONArray) jsonObject.get(nodeName);
                    if (o.length() > 0) {
                        HashSet array = getArray(o, code);
                        hashSet.addAll(array);
                    }
                }
            } catch (Exception e) {
                String nodeName = null;
                try {
                    nodeName = (String) jsonArray.get(i);//文件
                    fileNode.setName(nodeName);
                } catch (Exception e1) {
                    System.out.println("出现异常");
                }
                System.out.println(nodeName);

            }
            hashSet.add(fileNode);
        }
        return hashSet;
    }


}