一段代码
<%
String wsql1 = "SELECT count(*) NUM FROM table";
int num1 = "";
stmt = conn.createStatement();
rs = stmt.executeQuery(wsql1);
while(rs.next()){
num1 = rs.getInt("NUM");一个文本框
<TD class = "tdlabel">统计: </TD>
(单位:个)
<input title="" readonly name="num1" value="<%=num1%>" size=20 >其中我想在文本框前加一个按钮 点击按钮才允许代码 统计num1,
现在是一打开页面就统计请教一下,谢谢!
<%
String wsql1 = "SELECT count(*) NUM FROM table";
int num1 = "";
stmt = conn.createStatement();
rs = stmt.executeQuery(wsql1);
while(rs.next()){
num1 = rs.getInt("NUM");一个文本框
<TD class = "tdlabel">统计: </TD>
(单位:个)
<input title="" readonly name="num1" value="<%=num1%>" size=20 >其中我想在文本框前加一个按钮 点击按钮才允许代码 统计num1,
现在是一打开页面就统计请教一下,谢谢!
里面的东西在载入页面的时候就执行了
用JS或者1楼地方法都可以
function submit(){
document.all.num.style.display=block;
}<%
String wsql1 = "SELECT count(*) NUM FROM table";
int num1 = "";
stmt = conn.createStatement();
rs = stmt.executeQuery(wsql1);
while(rs.next()){
num1 = rs.getInt("NUM"); %>
一个文本框
<TD class = "tdlabel">统计: </TD>
(单位:个)
<input title="" readonly name="num1" value=" <%=num1%>" size=20 >
<input id="num" type="hidden" style="display:none"/>
<input type="button" value="" onclick="submit()"/>这样可以实现了。
String wsql1 = "SELECT count(*) NUM FROM table";
int num1 = "";
stmt = conn.createStatement();
rs = stmt.executeQuery(wsql1);
while(rs.next()){
num1 = rs.getInt("NUM"); %>放在一个单独的jsp页面中然后在 按牛的onclick事件中调用这个jsp页面 并返回到当前页面,
使用url传参 或者 request.setAttribute()设置传递参数。并在按钮页面获取参数 显示
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