在jsp文件中使用双引号的简单错误 [英] simple error due to use of double quotes in a jsp file

问题描述

我在我的网络应用程序中的JSP文件中有以下代码行，这个代码发生错误：

  jsp：setProperty name =dbproperty =userNamevalue =<％= request.getParameter（userName）％>/> 
  

我得到的错误信息是：

< blockquote>

org.apache.jasper.JasperException：
/loginbean.jsp(6,59）属性值
request.getParameter（userName）是
引用与$$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
$ b $ p code>'（单引号）或（双引号）需要以转义序列 \\ \\ （反斜杠）如果要使用。

但是，当我尝试使用双引号（用户名）反斜杠，我立即得到以下错误 - 非法字符\92-未封闭字符串文字

如何解决此问题？

解决方案

您应该在值参数上使用单引号，即：

  value ='<％= request.getParameter（userNa我）％>'
  

或设置 org.apache.jasper .compiler.Parser.STRICT_QUOTE_ESCAPING 参数为 false ，如下所述：

http://blogs.sourceallies.com/2009/10/strict- quote-escaping-in-tomcat /

I have the following line of code in a JSP File in my web app that is giving an error:

<jsp:setProperty name="db" property="userName" value="<%=request.getParameter("userName")%>"/>

The error message that I get is:

org.apache.jasper.JasperException: /loginbean.jsp(6,59) Attribute value request.getParameter("userName") is quoted with " which must be escaped when used within the value

What I read on some sites is that characters like ' (single quote) or " (double quote) need to be prefixed with an escape sequence \ (backslash) if they are to be used.

However, when I try and prefix the double quotes (around the word userName) with backslash, I immediately get the following error- "Illegal Character \92- Unclosed String Literal"

How do I resolve this problem?

解决方案

You should use single quotes on the value parameter, ie:

value='<%=request.getParameter("userName")%>'

or set the org.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING parameter to false as described here:

http://blogs.sourceallies.com/2009/10/strict-quote-escaping-in-tomcat/

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