Question

我正在开发基于struts的应用程序。在一个页面上，我发送一个带有POST请求的动态表单，该表单需要多个参数（单选按钮和隐藏表单字段）。当我点击提交按钮时，它会显示一个空白页面。我调查了关于chrome的问题并发现它是一个例外：

javax.servlet.ServletException: javax.servlet.ServletException: Request[/MMSP] does not contain handler parameter named 'form_action'.  This may be caused by whitespace in the label text.
    org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

javax.servlet.ServletException: Request[/MMSP] does not contain handler parameter named 'form_action'.  This may be caused by whitespace in the label text.
    org.apache.struts.actions.DispatchAction.unspecified(DispatchAction.java:194)
    org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:242)
    org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:167)
    org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:53)
    org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:64)
    org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
    org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
    org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
    org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

为了确保提供了handler参数，我在JSP页面中检查它并提供了它。

<input type="hidden" name="form_action" value="funcName">

但我仍然遇到这个错误。我的问题与参数数量的POST参数限制有关，因为该请求带有超过600个参数。请求是否有可能丢失导致此问题的最后几个参数。

注意：我的应用程序部署在Tomcat-8上，我们最近将Tomcat版本从7升级到8.

请求，不包含处理程序参数，帖子中的最大参数数量限制

0 个答案: