JSON.stringify出力をきれいな方法でdivに出力


163

JSON.stringifyはjsonオブジェクト

result = JSON.stringify(message, my_json, 2)

2上記の引数のinは、結果をきれいに出力することになっています。これは、私が次のようなことをした場合に行われますalert(result)。ただし、これをdiv内に追加してユーザーに出力したいと思います。これを行うと、1行だけ表示されます。(改行とスペースがHTMLとして解釈されていないため、うまく機能していないと思いますか?)

{ "data": { "x": "1", "y": "1", "url": "http://url.com" }, "event": "start", "show": 1, "id": 50 }

の結果をJSON.stringifyきれいな方法でdivに出力する方法はありますか?


pre要素を使用しますか?prettifyライブラリを使用しますか?
epascarello 2013年

PHPを使用すると、これは私にとって役に立ちました:stackoverflow.com/a/13638998/470749
Ryan

回答:


426

<pre> タグを使用してください

デモ:http : //jsfiddle.net/K83cK/

var data = {
  "data": {
    "x": "1",
    "y": "1",
    "url": "http://url.com"
  },
  "event": "start",
  "show": 1,
  "id": 50
}


document.getElementById("json").textContent = JSON.stringify(data, undefined, 2);
<pre id="json"></pre>


24
pre内部のコンテンツは事前にフォーマットされており、変更せずに表示できることをブラウザエンジンに通知します。そのため、ブラウザは空白や改行などを削除せず、 codeより意味論的なものにし、内部のコンテンツがコードスニペットであることを示します。フォーマットとは何の関係もありません。このように使用することをお勧めします<pre><code> /* Your code snippet here. */ </code></pre>
Diode

3
preタグが子であるコンテナから出る長い行を避けるために、次のcssルールをpreタグに追加する必要があります:stackoverflow.com/a/248013/883083
IHeartAndroid

どうもありがとうございました。
CENT1PEDE 2016年

非常に単純な方法であり、それが私が必要とするすべてです。ありがとう。
Nguyen Tran

1
@ user3692823:ありがとう。更新しました。この回答は2013年に書かれたもので、innerHTML当時はもっと一般的でした。textContent後に標準プロパティになりました。
ダイオード

28

JSON出力が<pre>タグ内にあることを確認してください。



6

私の提案は以下に基づいています:

  • 各 '\ n'(改行)を<br>に置き換えます
  • 各スペースを&nbsp;に置き換えます。

var x = { "data": { "x": "1", "y": "1", "url": "http://url.com" }, "event": "start", "show": 1, "id": 50 };


document.querySelector('#newquote').innerHTML = JSON.stringify(x, null, 6)
     .replace(/\n( *)/g, function (match, p1) {
         return '<br>' + '&nbsp;'.repeat(p1.length);
     });
<div id="newquote"></div>


3

それ<pre>が文字列がすでに提供されているためにタグがJSONの1行を表示している場合(APIまたはコントロール外の関数/ページを介して)、次のように再フォーマットできます。

HTML:

<pre id="json">{"some":"JSON string"}</pre>

JavaScript:

    (function() {
        var element = document.getElementById("json");
        var obj = JSON.parse(element.innerText);
        element.innerHTML = JSON.stringify(obj, undefined, 2);
    })();

またはjQuery:

    $(formatJson);

    function formatJson() {
        var element = $("#json");
        var obj = JSON.parse(element.text());
        element.html(JSON.stringify(obj, undefined, 2));
    }


2

REST APIが返すことを考慮してください。

{"Intent":{"Command":"search","SubIntent":null}}

次に、次のようにして、適切な形式で印刷できます。

<pre id="ciResponseText">Output will de displayed here.</pre>   

var ciResponseText = document.getElementById('ciResponseText');
var obj = JSON.parse(http.response);
ciResponseText.innerHTML = JSON.stringify(obj, undefined, 2);   

1

使用スタイルタグは、望ましくないことがあるテキスト形式を変更します。white-space: pre<pre>



0

JSXでコンポーネントの状態を出力する

render() {
  return (
    <div>
      <h1>Adopt Me!</h1>
      <pre>
        <code>{JSON.stringify(this.state, null, 4)}</code>
      </pre>
    </div>
  );
}

文字列化


0

折りたたみ可能なjsonを表示したい場合は、renderjsonを使用できます

これは、htmlにレンダリングjs javascriptを埋め込む例です。

<!DOCTYPE html>
<html>

<head>
    <script type="application/javascript">
        // Copyright © 2013-2014 David Caldwell <david@porkrind.org>
        //
        // Permission to use, copy, modify, and/or distribute this software for any
        // purpose with or without fee is hereby granted, provided that the above
        // copyright notice and this permission notice appear in all copies.
        //
        // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
        // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
        // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
        // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

        // Usage
        // -----
        // The module exports one entry point, the `renderjson()` function. It takes in
        // the JSON you want to render as a single argument and returns an HTML
        // element.
        //
        // Options
        // -------
        // renderjson.set_icons("+", "-")
        //   This Allows you to override the disclosure icons.
        //
        // renderjson.set_show_to_level(level)
        //   Pass the number of levels to expand when rendering. The default is 0, which
        //   starts with everything collapsed. As a special case, if level is the string
        //   "all" then it will start with everything expanded.
        //
        // renderjson.set_max_string_length(length)
        //   Strings will be truncated and made expandable if they are longer than
        //   `length`. As a special case, if `length` is the string "none" then
        //   there will be no truncation. The default is "none".
        //
        // renderjson.set_sort_objects(sort_bool)
        //   Sort objects by key (default: false)
        //
        // Theming
        // -------
        // The HTML output uses a number of classes so that you can theme it the way
        // you'd like:
        //     .disclosure    ("⊕", "⊖")
        //     .syntax        (",", ":", "{", "}", "[", "]")
        //     .string        (includes quotes)
        //     .number
        //     .boolean
        //     .key           (object key)
        //     .keyword       ("null", "undefined")
        //     .object.syntax ("{", "}")
        //     .array.syntax  ("[", "]")

        var module;
        (module || {}).exports = renderjson = (function () {
            var themetext = function (/* [class, text]+ */) {
                var spans = [];
                while (arguments.length)
                    spans.push(append(span(Array.prototype.shift.call(arguments)),
                        text(Array.prototype.shift.call(arguments))));
                return spans;
            };
            var append = function (/* el, ... */) {
                var el = Array.prototype.shift.call(arguments);
                for (var a = 0; a < arguments.length; a++)
                    if (arguments[a].constructor == Array)
                        append.apply(this, [el].concat(arguments[a]));
                    else
                        el.appendChild(arguments[a]);
                return el;
            };
            var prepend = function (el, child) {
                el.insertBefore(child, el.firstChild);
                return el;
            }
            var isempty = function (obj) {
                for (var k in obj) if (obj.hasOwnProperty(k)) return false;
                return true;
            }
            var text = function (txt) { return document.createTextNode(txt) };
            var div = function () { return document.createElement("div") };
            var span = function (classname) {
                var s = document.createElement("span");
                if (classname) s.className = classname;
                return s;
            };
            var A = function A(txt, classname, callback) {
                var a = document.createElement("a");
                if (classname) a.className = classname;
                a.appendChild(text(txt));
                a.href = '#';
                a.onclick = function () { callback(); return false; };
                return a;
            };

            function _renderjson(json, indent, dont_indent, show_level, max_string, sort_objects) {
                var my_indent = dont_indent ? "" : indent;

                var disclosure = function (open, placeholder, close, type, builder) {
                    var content;
                    var empty = span(type);
                    var show = function () {
                        if (!content) append(empty.parentNode,
                            content = prepend(builder(),
                                A(renderjson.hide, "disclosure",
                                    function () {
                                        content.style.display = "none";
                                        empty.style.display = "inline";
                                    })));
                        content.style.display = "inline";
                        empty.style.display = "none";
                    };
                    append(empty,
                        A(renderjson.show, "disclosure", show),
                        themetext(type + " syntax", open),
                        A(placeholder, null, show),
                        themetext(type + " syntax", close));

                    var el = append(span(), text(my_indent.slice(0, -1)), empty);
                    if (show_level > 0)
                        show();
                    return el;
                };

                if (json === null) return themetext(null, my_indent, "keyword", "null");
                if (json === void 0) return themetext(null, my_indent, "keyword", "undefined");

                if (typeof (json) == "string" && json.length > max_string)
                    return disclosure('"', json.substr(0, max_string) + " ...", '"', "string", function () {
                        return append(span("string"), themetext(null, my_indent, "string", JSON.stringify(json)));
                    });

                if (typeof (json) != "object") // Strings, numbers and bools
                    return themetext(null, my_indent, typeof (json), JSON.stringify(json));

                if (json.constructor == Array) {
                    if (json.length == 0) return themetext(null, my_indent, "array syntax", "[]");

                    return disclosure("[", " ... ", "]", "array", function () {
                        var as = append(span("array"), themetext("array syntax", "[", null, "\n"));
                        for (var i = 0; i < json.length; i++)
                            append(as,
                                _renderjson(json[i], indent + "    ", false, show_level - 1, max_string, sort_objects),
                                i != json.length - 1 ? themetext("syntax", ",") : [],
                                text("\n"));
                        append(as, themetext(null, indent, "array syntax", "]"));
                        return as;
                    });
                }

                // object
                if (isempty(json))
                    return themetext(null, my_indent, "object syntax", "{}");

                return disclosure("{", "...", "}", "object", function () {
                    var os = append(span("object"), themetext("object syntax", "{", null, "\n"));
                    for (var k in json) var last = k;
                    var keys = Object.keys(json);
                    if (sort_objects)
                        keys = keys.sort();
                    for (var i in keys) {
                        var k = keys[i];
                        append(os, themetext(null, indent + "    ", "key", '"' + k + '"', "object syntax", ': '),
                            _renderjson(json[k], indent + "    ", true, show_level - 1, max_string, sort_objects),
                            k != last ? themetext("syntax", ",") : [],
                            text("\n"));
                    }
                    append(os, themetext(null, indent, "object syntax", "}"));
                    return os;
                });
            }

            var renderjson = function renderjson(json) {
                var pre = append(document.createElement("pre"), _renderjson(json, "", false, renderjson.show_to_level, renderjson.max_string_length, renderjson.sort_objects));
                pre.className = "renderjson";
                return pre;
            }
            renderjson.set_icons = function (show, hide) {
                renderjson.show = show;
                renderjson.hide = hide;
                return renderjson;
            };
            renderjson.set_show_to_level = function (level) {
                renderjson.show_to_level = typeof level == "string" &&
                    level.toLowerCase() === "all" ? Number.MAX_VALUE
                    : level;
                return renderjson;
            };
            renderjson.set_max_string_length = function (length) {
                renderjson.max_string_length = typeof length == "string" &&
                    length.toLowerCase() === "none" ? Number.MAX_VALUE
                    : length;
                return renderjson;
            };
            renderjson.set_sort_objects = function (sort_bool) {
                renderjson.sort_objects = sort_bool;
                return renderjson;
            };
            // Backwards compatiblity. Use set_show_to_level() for new code.
            renderjson.set_show_by_default = function (show) {
                renderjson.show_to_level = show ? Number.MAX_VALUE : 0;
                return renderjson;
            };
            renderjson.set_icons('⊕', '⊖');
            renderjson.set_show_by_default(false);
            renderjson.set_sort_objects(false);
            renderjson.set_max_string_length("none");
            return renderjson;
        })();
    </script>

</head>


<body>
    <div id="dest"></div>
</body>
<script type="application/javascript">
    document.getElementById("dest").appendChild(
        renderjson.set_show_by_default(true)
            //.set_show_to_level(2)
            //.set_sort_objects(true)
            //.set_icons('+', '-')
            .set_max_string_length(100)
            ([
                {
                    "glossary": {
                        "title": "example glossary",
                        "GlossDiv": {
                            "title": "S",
                            "GlossList": {
                                "GlossEntry": {
                                    "ID": "SGML",
                                    "SortAs": "SGML",
                                    "GlossTerm": "Standard Generalized Markup Language",
                                    "Acronym": "SGML",
                                    "Abbrev": "ISO 8879:1986",
                                    "GlossDef": {
                                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
                                        "GlossSeeAlso": ["GML", "XML"]
                                    },
                                    "GlossSee": "markup"
                                }
                            }
                        }
                    }
                },
                {
                    "menu": {
                        "id": "file",
                        "value": "File",
                        "popup": {
                            "menuitem": [
                                { "value": "New", "onclick": "CreateNewDoc()" },
                                { "value": "Open", "onclick": "OpenDoc()" },
                                { "value": "Close", "onclick": "CloseDoc()" }
                            ]
                        }
                    }
                },

                {
                    "widget": {
                        "debug": "on",
                        "window": {
                            "title": "Sample Konfabulator Widget",
                            "name": "main_window",
                            "width": 500,
                            "height": 500
                        },
                        "image": {
                            "src": "Images/Sun.png",
                            "name": "sun1",
                            "hOffset": 250,
                            "vOffset": 250,
                            "alignment": "center"
                        },
                        "text": {
                            "data": "Click Here",
                            "size": 36,
                            "style": "bold",
                            "name": "text1",
                            "hOffset": 250,
                            "vOffset": 100,
                            "alignment": "center",
                            "onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
                        }
                    }
                },

                {
                    "web-app": {
                        "servlet": [
                            {
                                "servlet-name": "cofaxCDS",
                                "servlet-class": "org.cofax.cds.CDSServlet",
                                "init-param": {
                                    "configGlossary:installationAt": "Philadelphia, PA",
                                    "configGlossary:adminEmail": "ksm@pobox.com",
                                    "configGlossary:poweredBy": "Cofax",
                                    "configGlossary:poweredByIcon": "/images/cofax.gif",
                                    "configGlossary:staticPath": "/content/static",
                                    "templateProcessorClass": "org.cofax.WysiwygTemplate",
                                    "templateLoaderClass": "org.cofax.FilesTemplateLoader",
                                    "templatePath": "templates",
                                    "templateOverridePath": "",
                                    "defaultListTemplate": "listTemplate.htm",
                                    "defaultFileTemplate": "articleTemplate.htm",
                                    "useJSP": false,
                                    "jspListTemplate": "listTemplate.jsp",
                                    "jspFileTemplate": "articleTemplate.jsp",
                                    "cachePackageTagsTrack": 200,
                                    "cachePackageTagsStore": 200,
                                    "cachePackageTagsRefresh": 60,
                                    "cacheTemplatesTrack": 100,
                                    "cacheTemplatesStore": 50,
                                    "cacheTemplatesRefresh": 15,
                                    "cachePagesTrack": 200,
                                    "cachePagesStore": 100,
                                    "cachePagesRefresh": 10,
                                    "cachePagesDirtyRead": 10,
                                    "searchEngineListTemplate": "forSearchEnginesList.htm",
                                    "searchEngineFileTemplate": "forSearchEngines.htm",
                                    "searchEngineRobotsDb": "WEB-INF/robots.db",
                                    "useDataStore": true,
                                    "dataStoreClass": "org.cofax.SqlDataStore",
                                    "redirectionClass": "org.cofax.SqlRedirection",
                                    "dataStoreName": "cofax",
                                    "dataStoreDriver": "com.microsoft.jdbc.sqlserver.SQLServerDriver",
                                    "dataStoreUrl": "jdbc:microsoft:sqlserver://LOCALHOST:1433;DatabaseName=goon",
                                    "dataStoreUser": "sa",
                                    "dataStorePassword": "dataStoreTestQuery",
                                    "dataStoreTestQuery": "SET NOCOUNT ON;select test='test';",
                                    "dataStoreLogFile": "/usr/local/tomcat/logs/datastore.log",
                                    "dataStoreInitConns": 10,
                                    "dataStoreMaxConns": 100,
                                    "dataStoreConnUsageLimit": 100,
                                    "dataStoreLogLevel": "debug",
                                    "maxUrlLength": 500
                                }
                            },
                            {
                                "servlet-name": "cofaxEmail",
                                "servlet-class": "org.cofax.cds.EmailServlet",
                                "init-param": {
                                    "mailHost": "mail1",
                                    "mailHostOverride": "mail2"
                                }
                            },
                            {
                                "servlet-name": "cofaxAdmin",
                                "servlet-class": "org.cofax.cds.AdminServlet"
                            },

                            {
                                "servlet-name": "fileServlet",
                                "servlet-class": "org.cofax.cds.FileServlet"
                            },
                            {
                                "servlet-name": "cofaxTools",
                                "servlet-class": "org.cofax.cms.CofaxToolsServlet",
                                "init-param": {
                                    "templatePath": "toolstemplates/",
                                    "log": 1,
                                    "logLocation": "/usr/local/tomcat/logs/CofaxTools.log",
                                    "logMaxSize": "",
                                    "dataLog": 1,
                                    "dataLogLocation": "/usr/local/tomcat/logs/dataLog.log",
                                    "dataLogMaxSize": "",
                                    "removePageCache": "/content/admin/remove?cache=pages&id=",
                                    "removeTemplateCache": "/content/admin/remove?cache=templates&id=",
                                    "fileTransferFolder": "/usr/local/tomcat/webapps/content/fileTransferFolder",
                                    "lookInContext": 1,
                                    "adminGroupID": 4,
                                    "betaServer": true
                                }
                            }],
                        "servlet-mapping": {
                            "cofaxCDS": "/",
                            "cofaxEmail": "/cofaxutil/aemail/*",
                            "cofaxAdmin": "/admin/*",
                            "fileServlet": "/static/*",
                            "cofaxTools": "/tools/*"
                        },

                        "taglib": {
                            "taglib-uri": "cofax.tld",
                            "taglib-location": "/WEB-INF/tlds/cofax.tld"
                        }
                    }
                },

                {
                    "menu": {
                        "header": "SVG Viewer",
                        "items": [
                            { "id": "Open" },
                            { "id": "OpenNew", "label": "Open New" },
                            null,
                            { "id": "ZoomIn", "label": "Zoom In" },
                            { "id": "ZoomOut", "label": "Zoom Out" },
                            { "id": "OriginalView", "label": "Original View" },
                            null,
                            { "id": "Quality" },
                            { "id": "Pause" },
                            { "id": "Mute" },
                            null,
                            { "id": "Find", "label": "Find..." },
                            { "id": "FindAgain", "label": "Find Again" },
                            { "id": "Copy" },
                            { "id": "CopyAgain", "label": "Copy Again" },
                            { "id": "CopySVG", "label": "Copy SVG" },
                            { "id": "ViewSVG", "label": "View SVG" },
                            { "id": "ViewSource", "label": "View Source" },
                            { "id": "SaveAs", "label": "Save As" },
                            null,
                            { "id": "Help" },
                            { "id": "About", "label": "About Adobe CVG Viewer..." }
                        ]
                    }
                },
                {
                    "empty": {
                        "object": {},
                        "array": []
                    }
                },
                {
                    "really_long": "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla posuere, orci quis laoreet luctus, nunc neque condimentum arcu, sed tristique sem erat non libero. Morbi et velit non justo rutrum pulvinar. Nam pellentesque laoreet lacus eget sollicitudin. Quisque maximus mattis nisl, eget tempor nisi pulvinar et. Nullam accumsan sapien sapien, non gravida turpis consectetur non. Etiam in vestibulum neque. Donec porta dui sit amet turpis efficitur laoreet. Duis eu convallis ex, vel volutpat lacus. Donec sit amet nunc a orci fermentum luctus."
                }
            ]));
</script>

</html>
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