Step-by-Step tutorial part 4 problems

**arthurjo** · Oct 8th, 2004, 06:22 AM

I am trying to learn spring. I did the Step-by-step tutorial twice on two seperate machines. I am able to complete the tutorial up to step 4. When I try to link to the data base, this is the error that is always thrown.

I am probably missing something obvious. Any help would be greatly appreicated.

Code:

javax.servlet.ServletException&#58; Servlet.init&#40;&#41; for servlet springapp threw exception
	org.apache.catalina.valves.ErrorReportValve.invoke&#40;ErrorReportValve.java&#58;164&#41;
	org.apache.coyote.tomcat5.CoyoteAdapter.service&#40;CoyoteAdapter.java&#58;206&#41;
	org.apache.coyote.http11.Http11Processor.process&#40;Http11Processor.java&#58;833&#41;
	org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection&#40;Http11Protocol.java&#58;732&#41;
	org.apache.tomcat.util.net.TcpWorkerThread.runIt&#40;PoolTcpEndpoint.java&#58;619&#41;
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run&#40;ThreadPool.java&#58;688&#41;
	java.lang.Thread.run&#40;Thread.java&#58;534&#41;


root cause 

org.springframework.beans.factory.BeanCreationException&#58; Error creating bean with name 'springappController' defined in resource &#91;/WEB-INF/springapp-servlet.xml&#93; of ServletContext&#58; Can't resolve reference to bean 'prodMan' while setting property 'productManager'; nested exception is org.springframework.beans.factory.BeanCreationException&#58; Error creating bean with name 'prodMan' defined in resource &#91;/WEB-INF/springapp-servlet.xml&#93; of ServletContext&#58; Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException&#58; Invalid property 'productManagerDao' of bean class &#91;bus.ProductManager&#93;&#58; Property 'productManagerDao' is not writable
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveReference&#40;AbstractAutowireCapableBeanFactory.java&#58;958&#41;
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveValueIfNecessary&#40;AbstractAutowireCapableBeanFactory.java&#58;889&#41;
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues&#40;AbstractAutowireCapableBeanFactory.java&#58;827&#41;
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean&#40;AbstractAutowireCapableBeanFactory.java&#58;662&#41;
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean&#40;AbstractAutowireCapableBeanFactory.java&#58;270&#41;
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean&#40;AbstractAutowireCapableBeanFactory.java&#58;205&#41;
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean&#40;AbstractBeanFactory.java&#58;204&#41;
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean&#40;AbstractBeanFactory.java&#58;136&#41;
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons&#40;DefaultListableBeanFactory.java&#58;236&#41;
	org.springframework.context.support.AbstractApplicationContext.refresh&#40;AbstractApplicationContext.java&#58;284&#41;
	org.springframework.web.context.support.XmlWebApplicationContext.refresh&#40;XmlWebApplicationContext.java&#58;131&#41;
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext&#40;FrameworkServlet.java&#58;282&#41;
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext&#40;FrameworkServlet.java&#58;230&#41;
	org.springframework.web.servlet.FrameworkServlet.initServletBean&#40;FrameworkServlet.java&#58;200&#41;
	org.springframework.web.servlet.HttpServletBean.init&#40;HttpServletBean.java&#58;102&#41;
	javax.servlet.GenericServlet.init&#40;GenericServlet.java&#58;256&#41;

	org.apache.catalina.valves.ErrorReportValve.invoke&#40;ErrorReportValve.java&#58;164&#41;
	org.apache.coyote.tomcat5.CoyoteAdapter.service&#40;CoyoteAdapter.java&#58;206&#41;
	org.apache.coyote.http11.Http11Processor.process&#40;Http11Processor.java&#58;833&#41;
	org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection&#40;Http11Protocol.java&#58;732&#41;
	org.apache.tomcat.util.net.TcpWorkerThread.runIt&#40;PoolTcpEndpoint.java&#58;619&#41;
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run&#40;ThreadPool.java&#58;688&#41;
	java.lang.Thread.run&#40;Thread.java&#58;534&#41;

Here is the springapp-servlet.xml

Code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
 "http&#58;//www.springframework.org/dtd/spring-beans.dtd">

<!--
  - Application context definition for "springapp" DispatcherServlet.
  -->

<beans>

    <!--  Controller for the initial "Hello" page -->
    <bean id="springappController" class="web.SpringappController">
        <property name="productManager">
            <ref bean="prodMan"/>
        </property>
    </bean>

    <!--  Validator and Form Controller for the "Price Increase" page -->
    <bean id="priceIncreaseValidator" class="bus.PriceIncreaseValidator"/>
    <bean id="priceIncreaseForm" class="web.PriceIncreaseFormController">
        <property name="sessionForm"><value>true</value></property>
        <property name="commandName"><value>priceIncrease</value></property>
        <property name="commandClass"><value>bus.PriceIncrease</value></property>
        <property name="validator"><ref bean="priceIncreaseValidator"/></property>
        <property name="formView"><value>priceincrease</value></property>
        <property name="successView"><value>hello.htm</value></property>
        <property name="productManager">
            <ref bean="prodMan"/>
        </property>
    </bean>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      <property name="driverClassName"><value>com.mysql.jdbc.Driver</value></property>
      <property name="url">
        <value>jdbc&#58;mysql&#58;//localhost&#58;3306/test</value>
      </property>
      <property name="username"><value>admin</value></property>
      <property name="password"><value></value></property>
    </bean>

    <bean id="prodManDao" class="db.ProductManagerDaoJdbc">
        <property name="dataSource">
            <ref bean="dataSource"/>
        </property>
    </bean>

    <bean id="prodMan" class="bus.ProductManager">
        <property name="productManagerDao">
            <ref bean="prodManDao"/>
        </property>
<!--
        <property name="products">
            <list>
                <ref bean="product1"/>
                <ref bean="product2"/>
                <ref bean="product3"/>
            </list>
        </property>
-->
    </bean>
    
<!--
    <bean id="product1" class="bus.Product">
        <property name="description"><value>Lamp</value></property>
        <property name="price"><value>5.75</value></property>
    </bean>
        
    <bean id="product2" class="bus.Product">
        <property name="description"><value>Table</value></property>
        <property name="price"><value>75.25</value></property>
    </bean>

    <bean id="product3" class="bus.Product">
        <property name="description"><value>Chair</value></property>
        <property name="price"><value>22.79</value></property>
    </bean>
-->

    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basename"><value>messages</value></property>
    </bean>

    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> 
        <property name="mappings">
            <props>
                <prop key="/hello.htm">springappController</prop>
                <prop key="/priceincrease.htm">priceIncreaseForm</prop>
            </props>
        </property>
    </bean>

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass">
           <value>org.springframework.web.servlet.view.JstlView</value>
        </property>
        <property name="prefix"><value>/WEB-INF/jsp/</value></property>
        <property name="suffix"><value>.jsp</value></property>
    </bean>
</beans>

web.xml

Code:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http&#58;//java.sun.com/xml/ns/j2ee"
	xmlns&#58;xsi="http&#58;//www.w3.org/2001/XMLSchema-instance"
	xsi&#58;schemaLocation="http&#58;//java.sun.com/xml/ns/j2ee 
	http&#58;//java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

	<jsp-config>
		<jsp-property-group>
			<description>
				Property group for common configuration for all the
				JSP's
			</description>
			<url-pattern>*.jsp</url-pattern>
			<el-ignored>true</el-ignored>
		</jsp-property-group>
	</jsp-config>


	<servlet>
		<servlet-name>springapp</servlet-name>
		<servlet-class>
			org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>springapp</servlet-name>
		<url-pattern>*.htm</url-pattern>
	</servlet-mapping>

	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	

</web-app>

[/code]

**irbouho** · Oct 8th, 2004, 10:10 AM

Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyExcep tion: Invalid property 'productManagerDao' of bean class [bus.ProductManager]: Property 'productManagerDao' is not writable

does class ProductManager has a setter for productManagerDao?

**arthurjo** · Oct 8th, 2004, 10:36 AM

I didn't copy the entire ProductManager Code when I was duplicating the tutorial. Thanks.

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Step-by-Step tutorial part 4 problems

That was it, THANKS!!!

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