Auto.js Http get发送不崩溃函数 [函数]

/**
    url123 = 网址
    lgg = 1 则打印网址日志
    mods
      0=返回源码
      1=返回json
      2=返回字节
      3=返回body
    
**/
function fa_get(url123,lgg,mods){
    if(lgg == 1){
        console.log("[fa_get]",url123);
    }
    var fan = undefined;
    var codeee = undefined;
    try{
        codeee = http.get(url123);
    }catch(e){
        codeee = undefined;
        console.log("[fa_get]","get异常1："+e);
    }
    if(codeee == undefined){
        try{
            codeee = http.get(url123);
        }catch(e){
            codeee = undefined;
            console.log("[fa_get]","get异常2："+e);
        }
        if(codeee == undefined){
            try{
                sleep(5000);
                codeee = http.get(url123);
            }catch(e){
                codeee = undefined;
                console.log("[fa_get]","get异常3："+e);
            }
        }
    }
    if(codeee != undefined && codeee.statusCode == 200){
        if(mods == 0){
            try{
                fan = codeee.body.string();
            }catch(e){
                fan = undefined;
                console.log("[fa_get]","codeee.body.string()："+e)
            }
        }else if(mods == 1){
            try{
                fan = codeee.body.json();
            }catch(e){
                fan = undefined;
                console.log("[fa_get]","codeee.body.json()："+e)
            }
        }else if(mods == 2){
            try{
                fan = codeee.body.bytes();
            }catch(e){
                fan = undefined;
                console.log("[fa_get]","codeee.body.bytes()："+e)
            }
        }else if(mods == 3){
            try{
                fan = codeee.body;
            }catch(e){
                fan = undefined;
                console.log("[fa_get]","codeee.body："+e)
            }
        }
    }
    return fan;
}