发送JS错误日志到服务器

浏览数：25 / 时间：2015年06月09日

JS记录错误日志/捕捉错误　　

//onerror提供异常信息，文件路径和发生错误代码的行数的三个参数。

window.onerror = function(e,url,index){ var msg = e.message || e|| "未知错误"; alert("错误信息："+msg+",错误路径："+ul+",行数："+index); }

var 
logger = (function(){
    var 
loghost = ‘http://127.0.0.1/log.gif?‘;
    var 
log = function(err){
        var 
img = new 
Image(0,0);
        var 
_url =[];
        _url.push(‘name‘+‘=‘+encodeURIComponent(err.name));
        _url.push(‘message‘+‘=‘+encodeURIComponent(err.message));
        _url.push(‘location‘+‘=‘+encodeURIComponent(err.location));
        if(err.line)
            _url.push(‘line‘+‘=‘+encodeURIComponent(err.line));
        if(err.func)
            _url.push(‘func‘+‘=‘+encodeURIComponent(err.func));
 
        var 
url = _url.join(‘&‘);
        img.src = loghost+url;
        console.log(img.src);
    }
    return 
{log:log};
})();
 
function 
trapError(msg, URI, ln) {
    // wrap our unknown error condition in an object
    var 
error = new 
Error(msg);
    error.location = URI; // add custom property
    error.line = ln;
    logger.log(error);
    warnUser();
    return 
true; // stop the yellow triangle
}
 
window.onerror = trapError;
 
function 
foo() {
    try 
{
        riskyOperation();
    } catch 
(err) {
        // add custom property
        err.location = location.href;
        err.func = ‘foo‘;
        logger.log(err);
        warnUser();
    }
}
function 
warnUser() {
    alert("An error has occurred while processing this page.\
        Our engineers have been alerted!");
    // do something
}
foo();