如何在gwt的formPanel上添加隐藏数据 [英] how can i add hidden data on my formPanel in gwt

问题描述

我想在表单面板上传递一个字符串参数.可以在GWT表单面板上添加字符串参数数据吗?

I want to pass a string parameter on my form Panel. Is it possible to add string parameter data on GWT form panel?

我有servlet代码，将使用post接收传递的字符串参数，我无法在链接中包含参数，因为它包含大量数据

I have servlet code that will receive passed string parameter using post, I cannot include the parameters in the link because it has large amounts of data

这是我的servlet代码:

this is my servlet code:

public void doPost(HttpServletRequest request, HttpServletResponse response) {
            String printMode = request.getParameter("printMode");
            String nodeNm = ConfigConstants.PRINTER.getValue();
            String outputLogPath=SrchSvcImpl.cnfg.readValCnfg(nodeNm, ConfigConstants.OUTPUT_ERROR_LOG.getValue());

            if(printMode.equalsIgnoreCase("single_print")) {
                String role = request.getParameter("role");
                String itemsToPrint = request.getParameter("itemsToPrint");
                //do something else..
            }
}

推荐答案

使用

Use Hidden widget. It creates <input type='hidden'> element.

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