在javascript

Question

我需要从字符串

中获取子字符串

所以我需要＆＃34;在分配FD分析员后需要输入。用户未经授权。＆＃34;

出于此：

在System.Reflection.MethodBase.Invoke（Object obj，Object []参数）    at DOCSIDE.Web.Util.ExecuteMethod（Object o，String method，Object [] arguments，String buildNumber）in C：\ Software \ DOCSIDEFINAL \ DOCSIDE \ Main \ DOCSIDEBusinessLogic \ Web \ Util.cs：line 247

+++ DOCSIDE Sproc - updateTrkRecord Line - 2203 [@@ Error = 50000]在分配FD分析员后需要输入类型。用户未经授权。    在DOCSIDE.Web.WebMethods.UpdateTrkRecord（TrkRecordCUD t，TrkRecordAction a）中的C：\ Software \ DOCSIDEFINAL \ DOCSIDE \ Main \ Web.cs：第255行

Answer 1

如果您的错误消息始终相同，则可以使用indexOf和substring

示例代码

<script>
    function test() {
        var str = 'at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) at DOCSIDE.Web.Util.ExecuteMethod(Object o, String method, Object[] arguments, String buildNumber) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\DOCSIDEBusinessLogic\Web\Util.cs:line 247+++ DOCSIDE Sproc - updateTrkRecord Line - 2203 [@@Error=50000] Type is required after FD analyst has been assigned. User is not authorized. at DOCSIDE.Web.WebMethods.UpdateTrkRecord(TrkRecordCUD t, TrkRecordAction a) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\Web.cs:line 255';
        var start = str.indexOf("[@@Error=50000]");
        var end = str.indexOf(" at DOCSIDE.Web.WebMethods");
        var get = str.substring(start + 16, end);
        document.write(get);
    }
</script>

第2版

如果您知道错误50000始终是相同的

<script>
    function test() {
        var str = 'at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) at DOCSIDE.Web.Util.ExecuteMethod(Object o, String method, Object[] arguments, String buildNumber) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\DOCSIDEBusinessLogic\Web\Util.cs:line 247+++ DOCSIDE Sproc - updateTrkRecord Line - 2203 [@@Error=50000] Type is required after FD analyst has been assigned. User is not authorized. at DOCSIDE.Web.WebMethods.UpdateTrkRecord(TrkRecordCUD t, TrkRecordAction a) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\Web.cs:line 255';
            //Check if error is 50000
            if( str.indexOf('Error=50000') >= 0){
                var start = str.indexOf("[@@Error=50000]");
                var end = str.indexOf(" at DOCSIDE.Web.WebMethods");
                var get = str.substring(start + 16, end);
                document.write(get);
            }        
    }
</script>

Answer 2

简单：关心这是ES6语法

＆＃13;

＆＃13;

let str=`
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) at DOCSIDE.Web.Util.ExecuteMethod(Object o, String method, Object[] arguments, String buildNumber) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\DOCSIDEBusinessLogic\Web\Util.cs:line 247

+++ DOCSIDE Sproc - updateTrkRecord Line - 2203 [@@Error=50000] Type is required after FD analyst has been assigned. User is not authorized. at DOCSIDE.Web.WebMethods.UpdateTrkRecord(TrkRecordCUD t, TrkRecordAction a) in C:\Software\DOCSIDEFINAL\DOCSIDE\Main\Web.cs:line 255`;

console.log(str.includes("Type is required after FD analyst has been assigned. User is not authorized."));

＆＃13;

＆＃13;

＆＃13;