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当param = xyz％时，request.getParameter（“ param”）不返回值

[英]request.getParameter(“param”) doesn't return value, when the param=xyz%

原文 2013-03-08 13:12:33 9 1 java/ servlets

I'm passing one parameter param from jsp to servlet having a value like %xyz . 我正在将一个参数param从jsp传递到servlet ，其值类似于%xyz 。

When I'm trying to get the value in servlet by request.getParameter("param") I'm not getting any value. 当我尝试通过request.getParameter("param")获取servlet中的值时，我没有任何值。

Instead it is coming as blank (Not even Null). 相反，它以空白显示（甚至没有Null）。

Can, anyone please explain the reason. 可以，任何人请解释原因。

1 个解决方案

The % is a special character in uri. %是uri中的特殊字符。 You have to encode the % value using uri encoding. 您必须使用uri编码对%值进行编码。 In your case the % should be encoded as %25 在您的情况下， %应编码为%25

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