Question

我以前做过这个，但这次不能让它工作：S

我有一个带有表单的JSP：

    <form action="/SimModSystem-web/ExecuteModel" method="post">
            <h2>Initial State</h2>
    <h3>ASSET</h3>
    <div  style="style0"><span style="style1">Assets Amount</span><span style="style2"><span style="style2">Amount<input type="text" value="[-Infinite - +Infinite]" id="initial..asset.amount.param0" /></span></span></div>
    <div  style="style0"><span style="style1">Savings Interest APR</span><span style="style2"><span style="style2">APR %<input type="text" value="[0.0 - 1.0]" id="initial..asset.apr.param0" /></span></span></div>
    <div  style="style0"><span style="style1">Desired Savings Percentage</span><span style="style2"><span style="style2">Annual %<input type="text" value="[0.0 - 1.0]" id="initial..asset.minsaving.param0" /></span></span></div>
    <h3>LIABILITY</h3>
    <div  style="style0"><span style="style1">Liabilities Monthly Minimum Payment Percentage</span><span style="style2"><span style="style2">Minimum Payment %<input type="text" value="[0.0 - 1.0]" id="initial..liabilities.minpay.param0" /></span></span></div>
    <div  style="style0"><span style="style1">Liabilities Amount</span><span style="style2"><span style="style2">Amount<input type="text" value="[0.0 - +Infinite]" id="initial..liabilities.amount.param0" /></span></span></div>
    <div  style="style0"><span style="style1">Liabilities APR</span><span style="style2"><span style="style2">APR %<input type="text" value="[0.0 - 1.0]" id="initial..liabilities.apr.param0" /></span></span></div>
    <div  style="style0"><span style="style1">Liabilities Delayed Payment Fee</span><span style="style2"><span style="style2">Fee Amount<input type="text" value="[0.0 - +Infinite]" id="initial..liabilities.delayedfee.param0" /></span></span></div>
...
<input type="submit"/>
        </form>

当我尝试这样做时，点击＆＃34;提交＆＃34;，在servlet中：

request.getParameterNames();
request.getParameterMap();
request.getParateter("initial..liabilities.delayedfee.param0"); //or any other param

全部返回＆＃39; null＆＃39;。

正如您所看到的，此表单中没有特殊编码。

有谁知道可能出现什么问题？

Answer 1

您需要使用组件名称，只需“id”就无法使用

<input type="text" value="[-Infinite - +Infinite]" id="initial..asset.amount.param0" name="comp1" />

并且

request.getParameter("comp1");

请求中的参数始终为“null”

1 个答案: