Eu preciso de ajuda. Eu estou trabalhando em um projeto onde eu tenho várias páginas e vários formulários; cada página tem um formulário. Eu só preciso ser capaz de passar valores de um jsp para outro. O que devo fazer?

Eu sou novo no Spring MVC. Eu estou usando a mola 2.5.6.

Aqui está meu desenho:

formPage1.jsp -> Controller1 -> formPage2a.jsp -> O Controller2 precisa de val frm pg1 e pg2a. formPage1.jsp -> Controller1 -> formPage2b.jsp -> O Controller3 precisa de val frm pg1 e pg2b. formPage1.jsp -> Controller1 -> formPage2c.jsp -> O Controller4 precisa de val frm pg1 & pg2c.

Como você pode ver acima, formPage1.jsp pode carregar formPage2a, formPage2b ou formPage2c. Com base na entrada fornecida em formPage1.jsp, ela vai para o controlador (que é uma extensão do SimpleFormController) e o controlador obtém os valores inseridos pelo usuário = objeto de comando.

Eu quero ser capaz de usar esses valores de objeto de comando em qualquer formPage2a, formPage2b ou formPage2c quando eles são enviados para outro controlador.

aqui está o código atual:

formPage1.jsp:

<form:form method="post" commandName="gainLossRequest">
            <form:errors path="*" cssClass="error"/>
            <table>
                <tr>
                    <td>
                        <table>
                            <tr>
                                <td><h4>Choose Client</h4></td>
                                <td style="font-size: medium; font-family: Arial, bold; color: red">*</td>
                            </tr>
                        </table>
                    </td>
                    <td>
                        <form:select path="client">
                            <form:option value="none" label="Select" />
                            <form:option value="abc" label="abc" />
                            <form:option value="def" label="def" />
                            <form:option value="xyz" label="xyz" />
                        </form:select>
                    </td>
                </tr>
<tr>
                    <td colspan="2">
                        <input type="reset" value="Reset" />
                        <input type="submit" value="Next" />
                    </td>
                </tr>
            </table>
            </form:form>

Controller1.java

public class TestController extends SimpleFormController {

    /** Logger for this class and subclasses */
    protected final Log logger = LogFactory.getLog(getClass());

    public TestController() {
        logger.info("entering TestController.constructor..");
        setCommandClass(UserPreference.class);
        setCommandName("userPreference");
    }

    public ModelAndView onSubmit(HttpServletRequest request,
            HttpServletResponse response, Object command, BindException errors)
            throws ServletException {
        logger.info("entering TestController.onSubmit all..");

        UserPreference userPreference = (UserPreference) command;

        ModelAndView view = null;

        if ("abc".equals(userPreference.getClient())) {
            GainLossRequest gainLossRequest = new GainLossRequest(userPreference);
            view = new ModelAndView("redirect:/test/gainLossRequest.htm",
                    "gainLossRequest", gainLossRequest);
                } else if ("def".equals(userPreference.getClient())) {
            IncomingPositionsRequest incomingPositionsRequest = new IncomingPositionsRequest();
            view = new ModelAndView(
                    "redirect:/test/incomingPositionsRequest.htm",
                    "incomingPositionsRequest", incomingPositionsRequest);
        } else if ("xyz".equals(userPreference
                .getClient())) {
            TaxStrategyRequest taxStrategyRequest = new TaxStrategyRequest();
            view = new ModelAndView("redirect:/test/taxStrategyRequest.htm",
                    "taxStrategyRequest", taxStrategyRequest);
        }
        }
}

formPage2a.jsp

<form:form method="post" commandName="gainLossRequest">
            <form:errors path="*" cssClass="error"/>
            <table style="width: 60%">
                <tr>
                     <td>Account Number (s):</td>
                     <td style="font-size: medium; font-family: Arial, bold; color: red">*</td>
                </tr>
                <tr>
                    <td>
                        User Chosen Client: 
                    </td>
                    <td>
                        <c:out value="${gainLossRequest.client}"/>
                    </td>
                </tr>
                                <tr colspan="2">
                                        <td>
                        <input type="reset" value="Reset" />
                        <input type="submit" value="Submit" />
                    </td>
                </tr>

Configuração do servlet do dispatcher

<!-- setupNew.jsp is the first jsp --> 

<bean name="/test/setupNew.htm" class="chimeraweb.web.TestController">
        <property name="sessionForm" value="true"/>
        <property name="commandName" value="userPreference"/>
        <property name="commandClass" value="chimeraweb.service.UserPreference"/>
        <property name="validator">
            <bean class="chimeraweb.service.UserPreferenceValidator"/>
        </property>
        <property name="formView" value="/test/setupNew"/>
    </bean>


<!-- gainLossRequest.jsp is the 2nd jsp where I want to display the values captured in the first jsp page -->

    <bean name="/test/gainLossRequest.htm" class="chimeraweb.web.SimpleGainLossController">
        <property name="sessionForm" value="true"/>
        <property name="commandName" value="gainLossRequest"/>
        <property name="commandClass" value="chimeraweb.service.GainLossRequest"/>
        <property name="validator">
            <bean class="chimeraweb.service.GainLossValidator"/>
        </property>
        <property name="formView" value="/test/gainLossRequest"/>
    </bean>

Por favor ajude!!