Question

是否可以搜索您开发的所有网页（不只是用户所在的当前页面）以获取具有指定ID的正文标记？如果是这样，我将如何在Javascript中执行此操作？另外，我如何将用户重定向到包含具有唯一ID的主体的页面？

Answer 1

如果您真的想这样做，如果您知道页面的网址：

，则可以这样做

（使用jQuery）

function searchPages(urls,elem,success,failure){
    nextUrl(urls,0);
    // this calls itself as a callback because $.load is asynchronous
    function nextUrl(i){ // this function tries to load a body#myId for the url 
         $('<div /'>).load(urls[i]+' '+elem,function(){ 
             // if it loaded there'd be html
             if($(this).html()!=='') success.call(this,urls[i]); 
             // if you've loaded all the pages, then you're done
             if(i===urls.length) 
                failure.call(this,urls[i]);
             // otherwise, call the function again for the next url
             else nextUrl(i+1);
           });
    };
}

searchPages(['/url1','/url2','/url3'],'body#myId',function(url){
   console.log(url); // this is the url you want
   console.log($(this)); // $(this) is the div that the body elem was loaded into
},failed);

// this is called if you don't find the page
function failed(){ alert('no page found'); };

搜索具有唯一ID的所有页面

1 个答案: