在项目中我们需要将json数据直接显示在页面上，但是如果直接显示字符串很不方便查看，下面小编给大家带来了html中显示JSON数据的方法，需要的的朋友参考下吧
背景：
有时候我们需要将json数据直接显示在页面上（比如在做一个接口测试的项目，需要将接口返回的结果直接展示），但是如果直接显示字符串，不方便查看。需要格式化一下。
解决方案：
其实JSON.stringify本身就可以将JSON格式化，具体的用法是：
JSON.stringify(res, null, 2); //res是要JSON化的对象，2是spacing
如果想要效果更好看，还要加上格式化的代码和样式：
js代码:
function syntaxHighlight(json) {
if (typeof json != 'string') {
json = JSON.stringify(json, undefined, 2);
}
json = json.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function(match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
} else if (/null/.test(match)) {
cls = 'null';
}
return '<span class="' + cls + '">' + match + '</span>';
});
}样式代码:
<style>
pre {outline: 1px solid #ccc; padding: 5px; margin: 5px; }
.string { color: green; }
.number { color: darkorange; }
.boolean { color: blue; }
.null { color: magenta; }
.key { color: red; }
</style>html代码:
<pre id="result">
调用代码:
$('#result').html(syntaxHighlight(res));
效果:
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