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发送JS错误日志到服务器
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); }
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | 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 = http://www.mamicode.com/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(); |
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