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Redirect to .jsp Spring MVC

Angus Ferguson

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posted 7 years ago

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Hi,

I am trying to redirect from a Servlet to a .jsp page, using Spring MVC. It doesnt find the resource:

The code of the Servlet is like this:

I see that it doesnt find the file, the .jsp file is in the WEB-INF and in the jsp folder the Servlet is in a source package.

Any guide of how to write the rigth path, please?

Regards, Isaac

Ralph van Delft

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posted 7 years ago

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You're not using any Spring in your servlet...

This is a very simple example with Spring

Angus Ferguson

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I am trying your redirection example, my code is like looks here:

index.jsp

Servlet

After pressing a button in the form I get the next error:

Any idea, please?

K. Tsang

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posted 7 years ago

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Spring has its own front controller DispatcherServlet thing.

How are you setting up your web.xml?

K. Tsang CEng MBCS PMP PMI-ACP OCMJEA OCPJP

Angus Ferguson

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It is the default one:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>
</web-app>

First it goes to

redirect.jsp

and from there to

index.jsp

Any idea, please?

K. Tsang

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posted 7 years ago

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The web.xml looks ok.

Have you mapped the view resolvers in the spring's config file? The resolver should look something like:

Also in your so called Servlet, you ought to tell Spring its existence by making it a Spring controller using @Controller when declaring the class.

Have a look at Spring MVC page

K. Tsang CEng MBCS PMP PMI-ACP OCMJEA OCPJP

Angus Ferguson

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This is what I have in my Spring config file:

<?xml version='1.0' encoding='UTF-8' ?>

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="index.htm">indexController</prop>
            </props>
        </property>
    </bean>

<bean name="indexController"
          class="org.springframework.web.servlet.mvc.ParameterizableViewController"
          p:viewName="index" />

</beans>

In the class I added the controller anotation

I still get the same 404 error, it is like

@RequestMapping("/redirect.do")

would not make any sense.

Any idea, please?