read parameters passed by one jsp to another

Question

I want to read parameter passed by one JSP to another using HTTP POST method.

Following are my two JSP files.

One.jsp

<body>
<form action="Two.jsp" method="post">
    <input type="text" value="test value" name="txtOne">
    <input type="submit" value="Submit">
</form>
</body>

Two.jsp

<body>
    <% response.getWriter().println(request.getParameter("txtOne")); %>
</body>

I can access the parameter in Two.jsp file using scriplet.
I want to avoid scriplet, so I am looking for JavaScript or jQuery solution.
So far I have searched and found JavaScript solution which only reads parameters sent using GET method(query string only).

Any suggestion will be appreciated.

Thanks in advance.

Solution: I was able to get the value using JSTL:

${param.txtOne}

score 1 · Answer 1 · answered Dec 24 '13 at 12:36

1

Try expression language - ${txtOne}, of if the method in one.jsp is GET instead of POST, you would be able to read URL in javascript and extract parameter value from there.

answered Dec 24 '13 at 12:36

Ankit

3,083
7
35
59

score 1 · Answer 2 · edited May 23 '17 at 12:03

Yes you can get the value by use of JSTL

${param.txtOne}

Update

From EL info page

In EL there are several implicit objects available.

EL                                  Scriptlet (out.print and null checks omitted!)
----------------------------------  ---------------------------------------------
${param.foo}                        request.getParameter("foo");
${paramValues.foo}                  request.getParameterValues("foo");
${header['user-agent']}             request.getHeader("user-agent");
${pageContext.request.contextPath}  request.getContextPath();
${cookie.somename}                  Too verbose (start with request.getCookies())

Implicit Objects

The JSP expression language defines a set of implicit objects:

pageContext: The context for the JSP page. Provides access to various objects including:
servletContext: The context for the JSP page’s servlet and any web components contained in the same application. See Accessing the Web Context.
session: The session object for the client. See Maintaining Client State.
request: The request triggering the execution of the JSP page. See Getting Information from Requests.
response: The response returned by the JSP page. See Constructing Responses.

In addition, several implicit objects are available that allow easy access to the following objects:

param: Maps a request parameter name to a single value
paramValues: Maps a request parameter name to an array of values
header: Maps a request header name to a single value
headerValues: Maps a request header name to an array of values
cookie: Maps a cookie name to a single cookie
initParam: Maps a context initialization parameter name to a single value

Finally, there are objects that allow access to the various scoped variables described in Using Scope Objects.

pageScope: Maps page-scoped variable names to their values
requestScope: Maps request-scoped variable names to their values
sessionScope: Maps session-scoped variable names to their values
applicationScope: Maps application-scoped variable names to their values

score 0 · Accepted Answer · edited May 23 '17 at 12:11

I want to avoid scriplet, so I am looking for JavaScript or jquery solution.

Simply you cannot.

request object can only accessible on server side, i.e in your JSP. You cannot access request or response object in client side that i.e javascript/jquery/whatever.

If you want access jsp value in javascript, try something like

 var news=<%= request.getParameter("txtOne")) %>;

As a side note: Avoid scriplets and go for Expression language.

score 0 · Answer 4 · answered Dec 24 '13 at 12:37

0

It is time for you to move to some MVC framework like struts than plain JSP. Then you can fill an ActionForm from parameters and use them on Two.jsp.

answered Dec 24 '13 at 12:37

Dheerendra Kulkarni

2,728
1
16
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read parameters passed by one jsp to another

4 Answers4

Update

Implicit Objects

Linked