[英]Convert HTML Table to Json file
是否可以像這樣將 HTML 表轉換為 json:
姓名 性別 年齡
約翰 M 18
邁克 M 19
傑森:
{"Values" : {
"1" : {
"name": "John",
"Gender": "M",
"Age": "18"
},
"2": {
"name": "Mike",
"Gender": "M",
"Age": "19"
},
}}
我已經有了這個代碼:
(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));
})();
腳本將其轉換為:
<!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>
對此:
[{"Date":"24.9.","Teacher":"Dohe","?":"Free","Hour":"1","Subject":"Math ","Class":"(9) ","Room":"--- ","(Teacher)":"Dohe","(Room)":"A001","XYY":" ","Information":" ","(Le.) nach":"Free."}]
但是我之前需要“值”標簽,而“1”、“2”應該是按行自動創建的。 至少可以將它寫入一個新的 .json 文件,如 data.json 嗎?
如果要將行數組表示為對象, jsonArr.push(obj)
更改為jsonObj[++rowIx] = obj
,其中jsonObj
之前已初始化為{}
,而rowIx
是已初始化為的計數器0(可能比在i
上做數學更簡單)。
您發布的預期輸出不是有效的 JSON,所以我假設它應該被另一組大括號包裹:
document.write("<br>"+JSON.stringify({"Values": jsonObj}));
至於保存到文件,以可移植的方式做到這一點很棘手。 還有其他幾個答案可以解決這個問題,包括以下內容:
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