URL带参数json传递进行解析

注意参数格式是要加密的：

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
    <title>URL带参数json传递进行解析</title>
    </head>
    <body>
    <script>
      var common = {
          getQueryString : function(name){
            var reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i');
            var r = '';
            try{
                r = location.href.split('?')[1].match(reg);
            }catch(err){}
            if (r != null && r != 'undefined') {
                return unescape(r[2]);
            }
            return null;
          }
      }
      // 这是url上的   ?userpar=token%3dxxxx%26identity%3d123%26sysrole%3d1%26showMenu%3d0%2c1%2c2%2c3%26showColumn%3d0%2c1
      var userpar = common.getQueryString('userpar');
      console.log('参数：'+userpar)
      //这是解析后的  token=xxxx&identity=123&sysrole=1&showMenu=0,1,2,3&showColumn=0,1
      console.log("userpar里的值:    "+userpar)

      var newArr = userpar.split('&');
      //["token=xxxx", "identity=123", "sysrole=1", "showMenu=0,1,2,3", "showColumn=0,1"]
      console.log(newArr)
      // 数据整理
      var params = [];
      var object = {}
      for(var i in newArr){
        var obj = {}
        key = newArr[i].split('=')[0];
        value = newArr[i].split('=')[1];
        obj[key] = value;
        object =  Object.assign(object,obj); //追加json
      }
      // 进行取值
      // {token: "xxxx", identity: "123", sysrole: "1", showMenu: "0,1,2,3", showColumn: "0,1"}
      console.log(object)
    </script>
</body>
</html>

在VUE中当用到split() 会提示split 没定义，解决办法，在split()前加上toString()即可：

  var newArr = userpar.toString().split('&');