如何处理参数值中的特殊字符？ [英] How to handle special chars in parameter values?

问题描述

如果在GET参数中使用特殊字符（如Æ，ØogÅ）调用Java Servlet ，我有一些问题： http：// localhost：8080 / WebService / MyService？test =Øst。

I

  protected void doGet（HttpServletRequest请求，HttpServletResponse响应）throws ServletException，IOException {
 System.out.println（request.getParameterValues（test）[0]）; 
} 
  

控制台中打印的消息是：Ã？st 。

Web服务应该能够处理这样的调用。如何以正确的方式编码参数值？

解决方案

这需要在服务器级配置。不清楚你正在使用哪一个，所以我只给Tomcat和Glassfish的例子。

Tomcat ：添加 URIEncoding 属性为< Connector> 元素 /conf/server.xml ：

 < Connector ... URIEncoding =UTF-8> 
  

Glassfish ：添加< parameter-encoding> ; 到 /WEB-INF/glassfish-web.xml （或 sun-web.xml 对于旧版本）：

 < parameter-encoding default-charset =UTF- 8/> 
  

另请参见：

• Unicode - 如何获取字符对吗？ - JSP / Servlet请求

I've some issues with my Java Servlet if it's called with special chars (like Æ, Ø og Å) in the GET-parameters: http://localhost:8080/WebService/MyService?test=Øst.

I than have this code in my doGet:

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    System.out.println(request.getParameterValues("test")[0]);
}

The messages printed in the console is: Ã?st.

The Web Service should be able to handle calls like this. How can I encode the parameter values in a proper way?

解决方案

This needs to be configured at servet level. It's not clear which one you're using, so I'll give examples for Tomcat and Glassfish only.

Tomcat: add URIEncoding attribute to <Connector> element in /conf/server.xml:

<Connector ... URIEncoding="UTF-8">

Glassfish: add <parameter-encoding> to /WEB-INF/glassfish-web.xml (or sun-web.xml for older versions):

<parameter-encoding default-charset="UTF-8" />

See also:

• Unicode - How to get the characters right? - JSP/Servlet request

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