有时候后台返回的数据中有字符串，并需要将字符串转化为HTML，下面封装了一个方法，如下
// html转义
function htmlspecialchars_decode(string, quote_style) {
var optTemp = 0
, i = 0
, noquotes = false;
if (typeof quote_style === 'undefined') {
quote_style = 2;
}
string = string.toString().replace(/</g, '<').replace(/>/g, '>');
var OPTS = {
'ENT_NOQUOTES': 0,
'ENT_HTML_QUOTE_SINGLE': 1,
'ENT_HTML_QUOTE_DOUBLE': 2,
'ENT_COMPAT': 2,
'ENT_QUOTES': 3,
'ENT_IGNORE': 4
};
if (quote_style === 0) {
noquotes = true;
}
if (typeof quote_style !== 'number') {
quote_style = [].concat(quote_style);
for (i = 0; i < quote_style.length; i++) {
if (OPTS[quote_style[i]] === 0) {
noquotes = true;
} else if (OPTS[quote_style[i]]) {
optTemp = optTemp | OPTS[quote_style[i]];
}
}
quote_style = optTemp;
}
if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
string = string.replace(/�*39;/g, "'");
}
if (!noquotes) {
string = string.replace(/"/g, '"');
}
string = string.replace(/&/g, '&');
return string;
}
为了便于更好的使用该方法，下面是关于转义为html的案例,如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<div class="texts"> </div>
//点击“请求”按钮，开始执行转义并展示
<button class="btns">请求数据</button>
<div class="containerBox"></div>
</body>
<script src="vote/js/jquery_v3.3.1.js"></script>
<script>
$(function(){
$.ajax({
url: '1.json',
type: 'post',
})
.done(function(res) {
console.log(res.data[0]);
var aaa = res.data[0].sas;
var ddd = $('.texts').text(aaa)
htmlspecialchars_decode(res.data[0].sas) })
.fail(function() {
console.log("error");
})
.always(function() {
console.log("complete");
}); }) $('.btns').click(function() {
getReq();
});
function getReq(){
$.ajax({
url: '1.json',
type: 'post',
success:function(res){
console.log(res.data);
$.each(res.data, function(i, values) {
console.log(i)
console.log(values.sas);
var objHtml = htmlspecialchars_decode(values.sas)
$('.containerBox').append(objHtml)
});
},
error:function(e){
console.log(error)
}
}); }
// html转义，调用的时候只需要传第二个值即可
function htmlspecialchars_decode(string, quote_style) {
var optTemp = 0
, i = 0
, noquotes = false;
if (typeof quote_style === 'undefined') {
quote_style = 2;
}
string = string.toString().replace(/</g, '<').replace(/>/g, '>');
var OPTS = {
'ENT_NOQUOTES': 0,
'ENT_HTML_QUOTE_SINGLE': 1,
'ENT_HTML_QUOTE_DOUBLE': 2,
'ENT_COMPAT': 2,
'ENT_QUOTES': 3,
'ENT_IGNORE': 4
};
if (quote_style === 0) {
noquotes = true;
}
if (typeof quote_style !== 'number') {
quote_style = [].concat(quote_style);
for (i = 0; i < quote_style.length; i++) {
if (OPTS[quote_style[i]] === 0) {
noquotes = true;
} else if (OPTS[quote_style[i]]) {
optTemp = optTemp | OPTS[quote_style[i]];
}
}
quote_style = optTemp;
}
if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
string = string.replace(/�*39;/g, "'");
}
if (!noquotes) {
string = string.replace(/"/g, '"');
}
string = string.replace(/&/g, '&');
return string;
}
</script>
</html>
里面的json数据为
{
"data":[{
"sas":"<section data-id="23210" class="xmyeditor" data-type="lspecial06" data-tools="" powered-by="xmyeditor.com"> <section style="text-align: center;" powered-by="xmyeditor.com"> <section style="color: #fff;line-height: 80px;text-shadow: 0 1px #ccc, 1px 0 #ccc, -1px 0 #ccc, 0 -1px #ccc;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size:80px;"> <strong class="autosort">1</strong> </p> </section> </section> <section style="text-align: center;margin-top: -45px;" powered-by="xmyeditor.com"> <section style="background: url(http://alstyle.xmyeditor.com/sucai-png/20190124/5c498d915285ffwwwdwjjcz.qxwrkofsmliqxrpznudguodmwtvlmj);background-repeat: no-repeat;background-size: 100%;width: 100px;height: 30px;display: inline-block;" powered-by="xmyeditor.com"> <section style="margin-top: 5px;" powered-by="xmyeditor.com"> <section style="color: #333;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 15px;"> <strong class="xmybrush">五月</strong> </p> </section> </section> </section> <section style="color: #666;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 17px;" class="xmybrush"> 劳动节 </p> </section> </section> </section>"
},{
"sas":"<section data-id="23210" class="xmyeditor" data-type="lspecial06" data-tools="" powered-by="xmyeditor.com"> <section style="text-align: center;" powered-by="xmyeditor.com"> <section style="color: #fff;line-height: 80px;text-shadow: 0 1px #ccc, 1px 0 #ccc, -1px 0 #ccc, 0 -1px #ccc;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size:80px;"> <strong class="autosort">1</strong> </p> </section> </section> <section style="text-align: center;margin-top: -45px;" powered-by="xmyeditor.com"> <section style="background: url(http://alstyle.xmyeditor.com/sucai-png/20190124/5c498d915285ffwwwdwjjcz.qxwrkofsmliqxrpznudguodmwtvlmj);background-repeat: no-repeat;background-size: 100%;width: 100px;height: 30px;display: inline-block;" powered-by="xmyeditor.com"> <section style="margin-top: 5px;" powered-by="xmyeditor.com"> <section style="color: #333;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 15px;"> <strong class="xmybrush">六月</strong> </p> </section> </section> </section> <section style="color: #666;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 17px;" class="xmybrush"> 儿童节 </p> </section> </section> </section>"
},{
"sas":"<section data-id="23210" class="xmyeditor" data-type="lspecial06" data-tools="" powered-by="xmyeditor.com"> <section style="text-align: center;" powered-by="xmyeditor.com"> <section style="color: #fff;line-height: 80px;text-shadow: 0 1px #ccc, 1px 0 #ccc, -1px 0 #ccc, 0 -1px #ccc;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size:80px;"> <strong class="autosort">1</strong> </p> </section> </section> <section style="text-align: center;margin-top: -45px;" powered-by="xmyeditor.com"> <section style="background: url(http://alstyle.xmyeditor.com/sucai-png/20190124/5c498d915285ffwwwdwjjcz.qxwrkofsmliqxrpznudguodmwtvlmj);background-repeat: no-repeat;background-size: 100%;width: 100px;height: 30px;display: inline-block;" powered-by="xmyeditor.com"> <section style="margin-top: 5px;" powered-by="xmyeditor.com"> <section style="color: #333;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 15px;"> <strong class="xmybrush">七月</strong> </p> </section> </section> </section> <section style="color: #666;letter-spacing: 1px;line-height: 24px;" powered-by="xmyeditor.com"> <p style="padding: 0px;margin: 0px;font-size: 17px;" class="xmybrush"> 建军节 </p> </section> </section> </section>"
}
]
}直接运行即可显示转义为HTML的布局