js页面跳转常用的几种方式

版权声明： https://blog.csdn.net/qq_28256783/article/details/82189148

<script language="javascript" type="text/javascript"> 
    window.location.href="jb51.jsp?backurl="+window.location.href; 
</script> 

<script language="javascript"> 
    alert("返回"); 
    window.history.back(-1); 
</script> 

<script language="javascript"> 
    window.navigate("jb51.jsp"); 
</script>

<script language="JavaScript"> 
    self.location='jb51.htm'; 
</script> 

<script language="javascript"> 
    alert("非法访问！"); 
    top.location='jb51.jsp'; 
</script>

<script language="javascript" type="text/javascript"> 
    function request(paras){ 
        var url = location.href; 
        var paraString = url.substring(url.indexOf("?")+1,url.length).split("&"); 
        var paraObj = {} 
        for (i=0; j=paraString[i]; i++){ 
            paraObj[j.substring(0,j.indexOf("=")).toLowerCase()]=j.substring(j.indexOf("=")+1,j.length); 
        } 
        var returnValue = paraObj[paras.toLowerCase()]; 
        if(typeof(returnValue)=="undefined"){ 
            return ""; 
        }else{ 
            return returnValue; 
        } 
    } 
    var theurl 
    theurl=request("url"); 
    if (theurl!=''){ 
        location=theurl 
    } 
</script>