将多个 JSON 文件合并为单个文件

Question

我正在阅读多个 JSON 文件：

using (var fbd = new FolderBrowserDialog())
{
    DialogResult result = fbd.ShowDialog();

    if (result == System.Windows.Forms.DialogResult.OK && !string.IsNullOrWhiteSpace(fbd.SelectedPath))
    {
        IEnumerable<string> allJSONFiles = GetFileList("*.json", fbd.SelectedPath);
        txtOutput.Clear();
        txtOutput.Text = "Number of files found: " + allJSONFiles.ToList().Count + "\n";
        foreach (string filename in allJSONFiles)
        {
            txtOutput.Text += filename + "\n";
        }                   
    }
}

现在 JSON 文件或多或少看起来像这样，有多个对象：

[{
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }, {
        "Domain": "example.org",
        "A": ["50.63.202.59"],
        "MX": ["30 ALT2.ASPMX.L.GOOGLE.COM.", "20 ALT1.ASPMX.L.GOOGLE.COM.", "50 ASPMX3.GOOGLEMAIL.COM.", "10 ASPMX.L.GOOGLE.COM.", "40 ASPMX2.GOOGLEMAIL.COM."],
        "NS": ["ns13.example.com.", "ns14.example.com."],
        "SOA": ["ns13.example.com. dns.jomax.net. 2016081700 28800 7200 604800 600"],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-59.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [5844],
        "TTL": ["569"]
    }
]

我想要做的就是将我正在读取的多个文件中的这些对象连接起来，以创建一个文件作为输出。因此，假设有 2 个与上述完全相同的文件，我的输出文件将包含：

[{
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }, {
        "Domain": "example.org",
        "A": ["50.63.202.59"],
        "MX": ["30 ALT2.ASPMX.L.GOOGLE.COM.", "20 ALT1.ASPMX.L.GOOGLE.COM.", "50 ASPMX3.GOOGLEMAIL.COM.", "10 ASPMX.L.GOOGLE.COM.", "40 ASPMX2.GOOGLEMAIL.COM."],
        "NS": ["ns13.example.com.", "ns14.example.com."],
        "SOA": ["ns13.example.com. dns.jomax.net. 2016081700 28800 7200 604800 600"],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-59.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [5844],
        "TTL": ["569"]
    }, {
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }, {
        "Domain": "example.org",
        "A": ["50.63.202.59"],
        "MX": ["30 ALT2.ASPMX.L.GOOGLE.COM.", "20 ALT1.ASPMX.L.GOOGLE.COM.", "50 ASPMX3.GOOGLEMAIL.COM.", "10 ASPMX.L.GOOGLE.COM.", "40 ASPMX2.GOOGLEMAIL.COM."],
        "NS": ["ns13.example.com.", "ns14.example.com."],
        "SOA": ["ns13.example.com. dns.jomax.net. 2016081700 28800 7200 604800 600"],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-59.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [5844],
        "TTL": ["569"]
    }
]

如何在不序列化（因为对象差异很大并且我想稍微保留格式）和合并的情况下实现此目的？我尝试了NewtonSoft 的 merge，但对于如此简单的操作来说，它似乎太复杂了。字符串操作是我的最后一个选择（不知怎的，感觉不正确，因此这个问题）？

注意：虽然示例仅显示 2 个文件，但我将一次合并至少 100 个文件。

Answer 1

我们需要有一个可以清除括号的函数

private string RemoveBrackets(string content)
{
    var openB = content.IndexOf("[");
    content = content.Substring(openB + 1, content.Length - openB - 1);

    var closeB = content.LastIndexOf("]");
    content = content.Substring(0, closeB);

    return content;
}

合并 json 的函数

private string MergeJsons(string[] jsons)
{
    var sb = new StringBuilder();

    sb.AppendLine("[");     
    for(var i=0; i<jsons.Length; i++)   
    {
        var json = jsons[i];
        var cleared = RemoveBrackets(json);
        sb.AppendLine(cleared);
        if (i != jsons.Length-1) sb.Append(",");
    }

    sb.AppendLine("]");     
    return sb.ToString();
}

样本数据

string fileContent = @"[{
    ""Domain"": ""example.com"",
    ""A"": [""50.63.202.28""],
    ""MX"": [""0 example-com.mail.protection.outlook.com.""],
    ""NS"": [""ns48.example.com."", ""ns47.example.com.""],
    ""SOA"": [""ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600""],
    ""TXT"": [""\""MS=ms94763887\"""", ""\""google-site-verification=example-f0KFEgl-HnJF4_Gk\"""", ""\""v=spf1 include:spf.protection.outlook.com -all\""""],
    ""Country"": [""United States""],
    ""Hostname"": [""'ip-50-63-202-28.ip.secureserver.net'""],
    ""SSL"": [""None""],
    ""WHOIS"": [1096],
    ""TTL"": [""568""]
}
]";

使用示例

var files = Enumerable.Range(1, 3).Select(x=>fileContent).ToArray();        
Console.WriteLine(MergeJsons(files));

结果

[
{
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -  all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }  
,{
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -  all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }  
,{
        "Domain": "example.com",
        "A": ["50.63.202.28"],
        "MX": ["0 example-com.mail.protection.outlook.com."],
        "NS": ["ns48.example.com.", "ns47.example.com."],
        "SOA": ["ns47.example.com. dns.jomax.net. 2017062304 28800 7200 604800 600"],
        "TXT": ["\"MS=ms94763887\"", "\"google-site-verification=example-f0KFEgl-HnJF4_Gk\"", "\"v=spf1 include:spf.protection.outlook.com -  all\""],
        "Country": ["United States"],
        "Hostname": ["'ip-50-63-202-28.ip.secureserver.net'"],
        "SSL": ["None"],
        "WHOIS": [1096],
        "TTL": ["568"]
    }  
]