由于任務(wù)需要，需要對僅僅三個字段的Json文件進(jìn)行閱讀。這里制作了一個簡易版的Json閱讀工具，通過字段的遍歷獲取一個小工具，用來實現(xiàn)Json的可視化閱讀

直接上代碼

using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Windows.Forms;

namespace JsonFormsTool
{
    public partial class Form1 : Form
    {
        private JsonNode currentJson;
        private List<TreeNode> searchResults = new List<TreeNode>();
        private int currentSearchIndex = -1;

        public Form1()
        {
            InitializeComponent();
            InitializeEventHandlers();
            this.Text = "Json查看工具";
        }

        private void InitializeEventHandlers()
        {
            // 打開文件按鈕事件
            toolStripButton1.Click += ToolStripButton1_Click;

            // 搜索按鈕事件
            toolStripButton2.Click += ToolStripButton2_Click;

            // 上一個搜索結(jié)果按鈕事件
            toolStripButton3.Click += ToolStripButton3_Click;

            // 下一個搜索結(jié)果按鈕事件
            toolStripButton4.Click += ToolStripButton4_Click;

            // 樹形視圖節(jié)點點擊事件
            treeView1.AfterSelect += TreeView1_AfterSelect;

            // 搜索框按鍵事件
            toolStripTextBox1.KeyDown += ToolStripTextBox1_KeyDown;
        }

        private void ToolStripButton1_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.Filter = "Json文件 (*.json)|*.json|所有文件 (*.*)|*.*";
                openFileDialog.Title = "打開Json文件";

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    try
                    {
                        string filePath = openFileDialog.FileName;
                        string jsonContent = File.ReadAllText(filePath);

                        // 在RichTextBox中顯示全文
                        richTextBox1.Text = jsonContent;

                        // 解析并顯示到TreeView
                        ParseAndDisplayJson(jsonContent);

                        // 展開所有節(jié)點
                        treeView1.ExpandAll();

                        // 清空搜索結(jié)果
                        searchResults.Clear();
                        currentSearchIndex = -1;
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show($"打開文件時出錯: {ex.Message}", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
            }
        }

        private void ParseAndDisplayJson(string jsonContent)
        {
            try
            {
                // 解析JSON
                currentJson = JsonNode.Parse(jsonContent);
                if (currentJson == null)
                {
                    MessageBox.Show("無法解析JSON內(nèi)容", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }

                // 清空TreeView
                treeView1.Nodes.Clear();

                // 創(chuàng)建根節(jié)點
                TreeNode rootNode;
                if (currentJson is JsonObject)
                {
                    rootNode = new TreeNode("根對象");
                    rootNode.Tag = currentJson;
                    treeView1.Nodes.Add(rootNode);
                    AddJsonObjectToTree((JsonObject)currentJson, rootNode);
                }
                else if (currentJson is JsonArray)
                {
                    rootNode = new TreeNode("根數(shù)組");
                    rootNode.Tag = currentJson;
                    treeView1.Nodes.Add(rootNode);
                    AddJsonArrayToTree((JsonArray)currentJson, rootNode);
                }
                else
                {
                    rootNode = new TreeNode($"值: {currentJson.ToString()}");
                    rootNode.Tag = currentJson;
                    treeView1.Nodes.Add(rootNode);
                }

                // 默認(rèn)選擇第一個節(jié)點
                if (treeView1.Nodes.Count > 0)
                {
                    treeView1.SelectedNode = treeView1.Nodes[0];
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show($"解析JSON時出錯: {ex.Message}", "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void AddJsonObjectToTree(JsonObject jsonObject, TreeNode parentNode)
        {
            foreach (var property in jsonObject)
            {
                TreeNode node = new TreeNode(property.Key);
                node.Tag = property.Value;

                if (property.Value is JsonObject)
                {
                    node.Text += " : 對象";
                    AddJsonObjectToTree((JsonObject)property.Value, node);
                }
                else if (property.Value is JsonArray)
                {
                    node.Text += $" : 數(shù)組[{((JsonArray)property.Value).Count}]";
                    AddJsonArrayToTree((JsonArray)property.Value, node);
                }
                else
                {
                    string value = property.Value?.ToString() ?? "null";
                    if (value.Length > 50)
                        value = value.Substring(0, 50) + "...";
                    node.Text += $" : {value}";
                }

                parentNode.Nodes.Add(node);
            }
        }

        private void AddJsonArrayToTree(JsonArray jsonArray, TreeNode parentNode)
        {
            for (int i = 0; i < jsonArray.Count; i++)
            {
                TreeNode node = new TreeNode($"[{i}]");
                node.Tag = jsonArray[i];

                if (jsonArray[i] is JsonObject)
                {
                    node.Text += " : 對象";
                    AddJsonObjectToTree((JsonObject)jsonArray[i], node);
                }
                else if (jsonArray[i] is JsonArray)
                {
                    node.Text += $" : 數(shù)組[{((JsonArray)jsonArray[i]).Count}]";
                    AddJsonArrayToTree((JsonArray)jsonArray[i], node);
                }
                else
                {
                    string value = jsonArray[i]?.ToString() ?? "null";
                    if (value.Length > 50)
                        value = value.Substring(0, 50) + "...";
                    node.Text += $" : {value}";
                }

                parentNode.Nodes.Add(node);
            }
        }

        private void TreeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (e.Node.Tag is JsonNode jsonNode)
            {
                // 格式化JSON節(jié)點內(nèi)容并顯示
                string jsonString = jsonNode.ToJsonString(new JsonSerializerOptions
                {
                    WriteIndented = true,
                    Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping
                });

                // 處理換行符
                jsonString = jsonString.Replace("\\n", "\n");

                richTextBox1.Text = jsonString;
            }
        }

        private void SearchJsonTree(string searchText)
        {
            if (string.IsNullOrWhiteSpace(searchText))
                return;

            searchResults.Clear();
            currentSearchIndex = -1;

            // 遞歸搜索所有節(jié)點
            SearchNodes(treeView1.Nodes, searchText);

            if (searchResults.Count > 0)
            {
                currentSearchIndex = 0;
                treeView1.SelectedNode = searchResults[0];
                treeView1.SelectedNode.BackColor = Color.Yellow;
                treeView1.SelectedNode.EnsureVisible();
            }
            else
            {
                MessageBox.Show("未找到匹配項", "搜索", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        private void SearchNodes(TreeNodeCollection nodes, string searchText)
        {
            foreach (TreeNode node in nodes)
            {
                if (node.Text.IndexOf(searchText, StringComparison.OrdinalIgnoreCase) >= 0)
                {
                    searchResults.Add(node);
                }

                SearchNodes(node.Nodes, searchText);
            }
        }

        private void HighlightSearchResult()
        {
            // 清除之前的高亮
            foreach (TreeNode node in searchResults)
            {
                node.BackColor = treeView1.BackColor;
            }

            // 高亮當(dāng)前結(jié)果
            if (currentSearchIndex >= 0 && currentSearchIndex < searchResults.Count)
            {
                treeView1.SelectedNode = searchResults[currentSearchIndex];
                searchResults[currentSearchIndex].BackColor = Color.Yellow;
                searchResults[currentSearchIndex].EnsureVisible();
            }
        }

        private void ToolStripButton2_Click(object sender, EventArgs e)
        {
            SearchJsonTree(toolStripTextBox1.Text);
        }

        private void ToolStripButton3_Click(object sender, EventArgs e)
        {
            if (searchResults.Count > 0)
            {
                currentSearchIndex = (currentSearchIndex - 1 + searchResults.Count) % searchResults.Count;
                HighlightSearchResult();
            }
        }

        private void ToolStripButton4_Click(object sender, EventArgs e)
        {
            if (searchResults.Count > 0)
            {
                currentSearchIndex = (currentSearchIndex + 1) % searchResults.Count;
                HighlightSearchResult();
            }
        }

        private void ToolStripTextBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                SearchJsonTree(toolStripTextBox1.Text);
                e.Handled = true;
                e.SuppressKeyPress = true;
            }
        }
    }
}

顯示效果：

這里支持搜索

另外附上可直接運行版本：
https://wwus.lanzouu.com/iJ0Xt2yms9kb
密碼:9664