在URL中传递包含'％'的参数？

问题描述：

在传递我的网址时，例如：8000 / something.jsp？param1 = update& param2 = 1000& param3 = SearchString％& param4 = 3 ，I我收到以下错误：

While passing my url, for example something:8000/something.jsp?param1=update&param2=1000&param3=SearchString%&param4=3 , I am getting following error:

Bad Request

Your browser sent a request that this server could not understand.

我知道 SearchString％我需要哪些传递作为参数，有问题。然后如何在URL中传递包含'％'的
参数

I know SearchString% which I need to pass as a parameter, has the issue. Then how to pass a parameter containing '%' in URL??

答

使用％25代替％
在URL中％具有转义字符的特殊含义

Use %25 in place of % In URLs % has a special meaning as an escape character

像（空格）这样的特殊字符可以编码为％20（空格的ascii代码/ 32十六进制）

Special characters like (space) can be encoded like %20 (the ascii code for space/32 in hex)

因此百分号本身必须使用％的十六进制代码编码，恰好是25

Therefore a percent sign itself must be encoded using the hex code for % which happens to be 25

您可以使用 http://www.asciitable.com/ 查找相应的十六进制代码。 hx列

You can use http://www.asciitable.com/ to look up the appropriate hex code under the hx column

或者，如果您以编程方式（即使用javascript）执行此操作，则可以使用内置函数 escape（）喜欢转义（'％'）

Alternatively, if you are doing this programatically (ie. with javascript) you can use the builtin function escape() like escape('%')

在URL中传递包含'％'的参数？

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