js從table中獲得所需資訊轉為json
阿新 • • 發佈：2019-01-06
最近總是在改別人的專案,有些是沒有辦法讀到原始碼的,又要獲得顯示的資訊,這個是原生的js,只需要拷到瀏覽器執行就能獲得當前table中的所需資訊
var txt=document.getElementsByTagName("table");
var table = txt[txt.length-1];
var rowNoColumn;
var noColumn;
var contractAnnexColumn;
var validContractColumn;
//確定提取那些列資訊
for (var i = 0; i < table.rows[0].cells.length; i++) {
if(!table.rows[0].cells[i].innerText){
rowNoColumn = i;
}
if("編號" == table.rows[0].cells[i].innerText){
noColumn = i;
}
if("合同名稱" == table.rows[0].cells[i].innerText){
nameColumn = i;
}
if("合同附件" == table.rows[0].cells[i].innerText){
contractAnnexColumn = i;
}
if("生效合同" == table.rows[0].cells[i].innerText){
validContractColumn = i;
}
}
var contractList = [];
//遍歷每一行資訊
for (var i = 1; i < table.rows.length; i++) {
var contract=new Object();
var row = table.rows[i];
//獲得格子中的文字資訊
contract.rowNo = row.cells[rowNoColumn].innerText;
contract.no = row.cells[noColumn].innerText;
contract.name = row.cells[nameColumn].innerText;
//合同附件 獲得格子中的html資訊
var contractAnnexList = table.rows[i].cells[contractAnnexColumn];
contractAnnexList = contractAnnexList.innerHTML;
//獲取html中更加詳細的資訊
var aa = contractAnnexList.split('<a href="###"');
var contractAnnexs = [];
for (var j = 1; j < aa.length; j++) {
if(aa[j].indexOf("(")){
var bb = aa[j].substring(aa[j].indexOf("(")+1,aa[j].indexOf(")"));
contractAnnexs.push(bb);
}
}
contract.contractAnnexs = contractAnnexs;
//生效合同
var validContractList = table.rows[i].cells[validContractColumn];
validContractList = validContractList.innerHTML;
aa = validContractList.split('<a href="###"');
var validContracts = [];
for (var j = 1; j < aa.length; j++) {
if(aa[j].indexOf("(")){
var bb = aa[j].substring(aa[j].indexOf("(")+1,aa[j].indexOf(")"));
validContracts.push(bb);
}
}
contract.validContracts = validContracts;
contractList.push(contract); // 添
};
console.log(JSON.stringify(contractList) );