将数据从一个jsp传递到另一个jsp并显示该jsp视图

Question

Hey i am a php developer and this is my first go with jsp. 嘿，我是一名php开发人员，这是我第一次使用jsp。 Now i retrieved a Json string from my class and converted it into GSON. 现在我从我的类中检索了一个Json字符串并将其转换为GSON。 I display a field in my result.jsp for eg:- ID and on clicking the id it should go to details.jsp and show more info about that ID 我在result.jsp显示一个字段，例如： - ID，点击id，它应该转到details.jsp并显示有关该ID的更多信息

Currently my result.jsp is as follows:- 目前我的result.jsp如下： -

<html>
<body>
     <div class="list-group">
                <% 
                   String json = (String)request.getAttribute("jsonstring");
                    Gson gson = new Gson();
                    ConCom diff = new ConCom();
                    diff = gson.fromJson(json, ConCom.class);
                    List<ComparisonResultDTOarr> ls = diff.getComparisonResultDTOarr();

                    for(int i = 0;i<ls.size();i++)
                    {
                        List<AuditItemLogsDTOArr> lsinner = ls.get(i).getAuditItemLogsDTOArr();
                        %><a href="#" class="list-group-item">
                        <%out.println(lsinner.get(0).getKeyAsString());%></a><%
                    }
                    %>
                  </div>
</body>
</html>

I read around SO and googled it and understood that that i could make a hidden form. 我在周围阅读并用谷歌搜索并理解我可以制作一个隐藏的形式。 Now I create a form with the following two fields and using the anchor tag i submit the form. 现在我创建一个包含以下两个字段的表单，并使用锚标记提交表单。 But the values in the form need to be posted according to the ID clicked, how can i make that dynamic? 但是表单中的值需要根据点击的ID发布，我该如何制作动态？

So if my form is as follows:- 如果我的表格如下： -

<form action="details.jsp" method="post">
First name: <input type="text" name="firstname"><br>
Last name: <input type="text" name="phone">
</form>

And my details.jsp will be like:- 而我的details.jsp将如下： -

<%= request.getParameter("firstname") %>
<%= request.getParameter("phone") %>

I want the firstname and phone to be set according to the ID clicked and the form to be submitted. 我希望根据点击的ID和要提交的表单设置名字和电话。 I can obtain the String/Integer value from my diff object in this page. 我可以从此页面中的diff对象获取String / Integer值。 Would i need to use JQuery? 我需要使用JQuery吗？ Any help? 有帮助吗？

Also i know i should be using JSTL. 我也知道我应该使用JSTL。 And i will get to that soon. 我很快就会谈到这一点。 Thank you. 谢谢。

Answer 1

You could call a javascript function during the onclick event of your anchor tag: 您可以在锚标记的onclick事件期间调用javascript函数：

    <a href="#" onclick="submitHiddenForm("<%=lsinner.getFirstName()%>", "<%=lsinner.getPhone()%>");">...

Your JS function would like like: 你的JS函数喜欢：

   function submitHiddenForm(firstName, phone) {

       document.getElementById("firstname").value = firstName;
       document.getElementById("phone").value = phone;
       // attach a name attribute to your form tag
       // submit the form
       document.myForm.submit();
   }

I hope this helps. 我希望这有帮助。

EDIT: changed diff to lsinner, since that's the var used in the loop. 编辑：将差异更改为lsinner，因为这是循环中使用的var。

Answer 2

On click of the ID call a javascript function passing the values inside the function you can dynamically set the values of the form by getting each element like document.getElementById("firstname").value=value passed similarly set the other fields and in the end document.myform.submit(); 点击ID调用javascript函数传递函数内部的值，你可以通过获取像document.getElementById("firstname").value=value passed这样的每个元素来动态设置表单的值document.getElementById("firstname").value=value passed类似地设置其他字段并在end document.myform.submit();

Note since we are fetching HTML elements by Id you can use 请注意，因为我们可以使用Id来获取HTML元素

<form action="details.jsp" method="post" name="myform">
First name: <input type="hidden" name="firstname" id="firstname"><br>
Last name: <input type="hidden" name="phone" id="phone">
</form>

type="hidden" will hide the elements. type="hidden"将隐藏元素。 check these for better understanding. 检查这些以便更好地理解。

How to submit a form using javascript? 如何使用javascript提交表单？

Answer 3

If you have the diff object in details.jsp as well, it should be enough to pass only the ID as a parameter, in a normal link. 如果你在details.jsp中也有diff对象，那么在普通链接中只应该将ID作为参数传递就足够了。

<a href="details.jsp?id=<%= id %>">details</a>

You'd probably do the same in PHP. 您可能在PHP中也这样做。

JQuery is client side JavaScript and not required to solve your problem. JQuery是客户端JavaScript，不需要解决您的问题。

将数据从一个jsp传递到另一个jsp并显示该jsp视图

问题描述

3 个解决方案

解决方案1
2 已采纳 2014-06-19 10:19:45

解决方案2
1 2014-06-19 10:19:58

解决方案3
0 2014-06-19 09:59:48

将数据从一个jsp传递到另一个jsp并显示该jsp视图

问题描述

3 个解决方案

解决方案1 2 已采纳 2014-06-19 10:19:45

解决方案2 1 2014-06-19 10:19:58

解决方案3 0 2014-06-19 09:59:48

解决方案1
2 已采纳 2014-06-19 10:19:45

解决方案2
1 2014-06-19 10:19:58

解决方案3
0 2014-06-19 09:59:48