是否可以像这样将 HTML 表格转换为 json:
姓名性别年龄
约翰中号 18
迈克男 19
JSON:
{"Values" : {
"1" : {
"name": "John",
"Gender": "M",
"Age": "18"
},
"2": {
"name": "Mike",
"Gender": "M",
"Age": "19"
},
}}
我已经有了这个代码:
(function() {
var jsonArr = [];
var obj = {};
var thNum = document.getElementsByTagName('th').length;
var arrLength = document.getElementsByTagName('td').length;
for(i = 0; i<arrLength;i++){
if(i%thNum==0){
obj = {};
}
var head = document.getElementsByTagName('th')[i%thNum].innerHTML;
var content = document.getElementsByTagName('td')[i].innerHTML;
obj[head] = content;
if(i%thNum==0){
jsonArr.push(obj);
}
}
document.write("<br>"+JSON.stringify(jsonArr));
})();
脚本将其转换为:
<!DOCTYPE html>
<TABLE border="3" rules="all" bgcolor="#E7E7E7" cellpadding="1" cellspacing="1">
<TR>
<TH align=center><font size="3" face="Arial">Date</font></TH>
<TH align=center><font size="3" face="Arial"><B>Teacher</B></font></TH>
<TH align=center><font size="3" face="Arial">?</font></TH>
<TH align=center><font size="3" face="Arial">Hour</font></TH>
<TH align=center><font size="3" face="Arial">Subject</font></TH>
<TH align=center><font size="3" face="Arial">Class</font></TH>
<TH align=center><font size="3" face="Arial">Room</font></TH>
<TH align=center><font size="3" face="Arial">(Teacher)</font></TH>
<TH align=center><font size="3" face="Arial">(Room)</font></TH>
<TH align=center><font size="3" face="Arial">XYY</font></TH>
<TH align=center><font size="3" face="Arial"><B>Information</B></font></TH>
<TH align=center><font size="3" face="Arial">(Le.) nach</font></TH>
</TR>
<TR><TD align=center><font size="3" face="Arial">24.9.</font></TD>
<TD align=center><font size="3" face="Arial"><B><strike>Dohe</strike></B></font></TD>
<TD align=center><font size="3" face="Arial">Free</font></TD>
<TD align=center><font size="3" face="Arial">1</font></TD>
<TD align=center><font size="3" face="Arial"><strike>Math</strike></font> </TD>
<TD align=center><font size="3" face="Arial">(9)</font> </TD>
<TD align=center><font size="3" face="Arial">---</font> </TD>
<TD align=center><font size="3" face="Arial"><strike>Dohe</strike></font></TD>
<TD align=center><font size="3" face="Arial">A001</font></TD>
<TD align=center> </TD>
<TD align=center> </TD>
<TD align=center><font size="3" face="Arial">Free.</font></TD>
</TR>
</TABLE>
<script>
(function() {
var jsonArr = [];
var obj = {};
var thNum = document.getElementsByTagName('th').length;
var arrLength = document.getElementsByTagName('td').length;
for(i = 0; i < arrLength; i++){
if(i%thNum === 0){
obj = {};
}
var head = document.getElementsByTagName('th')[i%thNum].innerHTML;
var content = document.getElementsByTagName('td')[i].innerHTML;
obj[head] = content;
if(i%thNum === 0){
jsonArr.push(obj);
}
}
document.write("<br>"+JSON.stringify(jsonArr));
})();
</script>
</body>
</html>
为此:
[{"Date":"24.9.","Teacher":"Dohe","?":"Free","Hour":"1","Subject":"Math ","Class":"(9) ","Room":"--- ","(Teacher)":"Dohe","(Room)":"A001","XYY":" ","Information":" ","(Le.) nach":"Free."}]
但我之前需要“值”标签和“1”、“2”,它们应该按行自动创建。 至少可以将其写入新的 .json 文件,如 data.json?
最佳答案
如果要将行数组表示为对象,请将 jsonArr.push(obj)
更改为 jsonObj[++rowIx] = obj
,其中 jsonObj
之前已经初始化为 {}
,而 rowIx
是一个已经初始化为 0 的计数器(可能比在 i 上做数学运算更简单
)。
您发布的预期输出不是有效的 JSON,因此我假设它应该被另一组大括号包裹:
document.write("<br>"+JSON.stringify({"Values": jsonObj}));
至于保存到文件,以可移植的方式很难做到这一点。还有其他几个解决此问题的答案,包括以下内容:
关于javascript - 将 HTML 表格转换为 Json 文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32950941/