decodeURIComponent上的意外令牌

Question

在grails视图中有一个参数，传递给javascript代码。

<g:if test="${replacedString}">
    ${replacedString}
    <g:set var="replacedString" value="${replacedString}"/>
</g:if>
<script>
   var mydata = decodeURIComponent(${replacedString});
   console.log(mydata);
</script>

replacedString值正以编码字符串的形式传递，即：“显示为"。

decodeURIComponent

这是我想要解码的字符串：

[{"description":"test1 ","filenameAndPath":"test1.pdf"},{"description":"test file","filenameAndPath":"test copy.pdf"},{"description":"","filenameAndPath":""},{"description":"","filenameAndPath":""}]

这段代码一直抛出错误Syntax error: Unexpected token &。

我漏掉了什么明显的东西吗？

Answer 1

这是HTML编码的。

使用来自here的技巧：-

​

var encoded = "[{"description":"test1 ","filenameAndPath":"test1.pdf"},{"description":"test file","filenameAndPath":"test copy.pdf"},{"description":"","filenameAndPath":""},{"description":"","filenameAndPath":""}]"

var elem = document.createElement('textarea');
elem.innerHTML = encoded;
var decoded = elem.value;

console.log(decoded);

​

有关HTML编码的差异，请参见here